{"id":120888,"date":"2026-11-01T17:16:52","date_gmt":"2026-11-01T09:16:52","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/120888.html"},"modified":"2026-11-01T17:16:52","modified_gmt":"2026-11-01T09:16:52","slug":"stm32_ram_rom_flash","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/120888.html","title":{"rendered":"STM32_RAM_ROM_Flash"},"content":{"rendered":"<h2>RAM\u3001ROM\u3001Flash \u5230\u5e95\u6709\u4ec0\u4e48\u533a\u522b&#xff1f;\u4ece STM32 \u770b\u61c2\u4ee3\u7801\u3001\u53d8\u91cf\u4e0e\u51fd\u6570\u5b58\u5728\u54ea\u91cc<\/h2>\n<p>\u5199 STM32 \u7a0b\u5e8f\u65f6&#xff0c;\u6211\u4eec\u5e38\u542c\u5230\u4e24\u53e5\u8bdd&#xff1a;\u201c\u7a0b\u5e8f\u653e\u5728 Flash&#xff0c;\u53d8\u91cf\u653e\u5728 RAM\u3002\u201d<\/p>\n<p>\u8fd9\u53ef\u4ee5\u4f5c\u4e3a\u5165\u95e8\u5370\u8c61&#xff0c;\u5374\u89e3\u91ca\u4e0d\u4e86\u4e0b\u9762\u7684\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>Flash \u53ef\u4ee5\u53cd\u590d\u70e7\u5f55&#xff0c;\u4e3a\u4ec0\u4e48\u6709\u4eba\u628a\u5b83\u53eb ROM&#xff1f;<\/li>\n<li>int count &#061; 10; \u7684\u521d\u503c\u5728\u54ea\u91cc&#xff1f;\u4fee\u6539\u540e\u80fd\u4e0d\u80fd\u6389\u7535\u4fdd\u5b58&#xff1f;<\/li>\n<li>\u5168\u5c40\u53d8\u91cf\u3001\u5c40\u90e8\u53d8\u91cf\u3001static\u3001const \u5206\u522b\u5360\u7528\u4ec0\u4e48\u7a7a\u95f4&#xff1f;<\/li>\n<li>\u51fd\u6570\u653e\u5728 Flash&#xff0c;\u4e3a\u4ec0\u4e48\u8c03\u7528\u51fd\u6570\u53c8\u4f1a\u6d88\u8017 RAM&#xff1f;<\/li>\n<li>\u7f16\u8bd1\u7ed3\u679c\u91cc\u7684 Code\u3001RO-data\u3001RW-data\u3001ZI-data \u5230\u5e95\u4ee3\u8868\u4ec0\u4e48&#xff1f;<\/li>\n<\/ul>\n<p>\u8981\u56de\u7b54\u8fd9\u4e9b\u95ee\u9898&#xff0c;\u9700\u8981\u5206\u6e05\u4e09\u4e2a\u5c42\u6b21&#xff1a;\u786c\u4ef6\u5b58\u50a8\u5668\u3001\u7a0b\u5e8f\u7684\u7ec4\u7ec7\u65b9\u5f0f&#xff0c;\u4ee5\u53ca C \u8bed\u8a00\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\n<p>\u672c\u6587\u4ee5 C \u8bed\u8a00\u548c\u5e38\u89c1 STM32 \u88f8\u673a\u5de5\u7a0b\u4e3a\u4e3b&#xff0c;\u9ed8\u8ba4\u7a0b\u5e8f\u70e7\u5f55\u5230\u5185\u90e8 Flash\u3001\u8fd0\u884c\u6570\u636e\u4f7f\u7528 SRAM\u3002\u6587\u4e2d\u7684\u5b58\u50a8\u4f4d\u7f6e\u662f\u5e38\u89c1\u5de5\u5177\u94fe\u914d\u7f6e\u4e0b\u7684\u7ed3\u679c&#xff0c;\u5e76\u975e C \u8bed\u8a00\u5f3a\u5236\u89c4\u5b9a\u3002\u5f00\u542f\u4f18\u5316\u6216\u4fee\u6539\u94fe\u63a5\u914d\u7f6e\u540e&#xff0c;\u5b9e\u9645\u7ed3\u679c\u53ef\u80fd\u4e0d\u540c\u3002<\/p>\n<h3>\u4e00\u3001\u5148\u5206\u6e05 RAM\u3001ROM\u3001Flash&#xff1a;\u5b83\u4eec\u4e0d\u662f\u4e09\u4e2a\u5b8c\u5168\u5e76\u5217\u7684\u6982\u5ff5<\/h3>\n<h4>1. RAM&#xff1a;\u7a0b\u5e8f\u8fd0\u884c\u65f6\u7684\u5de5\u4f5c\u7a7a\u95f4<\/h4>\n<p>RAM \u5168\u79f0\u662f Random Access Memory&#xff0c;\u968f\u673a\u5b58\u53d6\u5b58\u50a8\u5668\u3002<\/p>\n<p>\u201c\u968f\u673a\u5b58\u53d6\u201d\u4e0d\u662f\u968f\u673a\u5b58\u6570\u636e&#xff0c;\u800c\u662f\u53ef\u4ee5\u6309\u5730\u5740\u76f4\u63a5\u8bbf\u95ee\u76ee\u6807\u4f4d\u7f6e&#xff0c;\u4e0d\u5fc5\u4ece\u5934\u987a\u5e8f\u67e5\u627e\u3002<\/p>\n<p>\u5728\u5e38\u89c1 MCU \u4e2d&#xff0c;RAM \u4e3b\u8981\u7528\u4e8e\u5b58\u653e\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u9700\u8981\u6539\u53d8\u7684\u6570\u636e&#xff0c;\u4f8b\u5982 ADC \u91c7\u6837\u6570\u7ec4\u3001\u4e32\u53e3\u63a5\u6536\u7f13\u5b58\u3001\u63a7\u5236\u7b97\u6cd5\u7684\u4e2d\u95f4\u7ed3\u679c&#xff0c;\u4ee5\u53ca\u51fd\u6570\u8c03\u7528\u6240\u9700\u7684\u6570\u636e\u3002<\/p>\n<p>\u5e38\u89c1\u7684\u4e24\u7c7b RAM \u662f&#xff1a;<\/p>\n<table>\n<tr>\u7c7b\u578b\u5b58\u50a8\u7279\u70b9\u662f\u5426\u9700\u8981\u5237\u65b0\u5e38\u89c1\u7528\u9014<\/tr>\n<tbody>\n<tr>\n<td>SRAM&#xff0c;\u9759\u6001 RAM<\/td>\n<td>\u4f7f\u7528\u4fdd\u6301\u7535\u8def\u72b6\u6001\u7684\u5b58\u50a8\u5355\u5143<\/td>\n<td>\u4fdd\u6301\u4f9b\u7535\u65f6\u4e0d\u9700\u8981\u5468\u671f\u5237\u65b0<\/td>\n<td>MCU \u7247\u5185 RAM\u3001\u7f13\u5b58<\/td>\n<\/tr>\n<tr>\n<td>DRAM&#xff0c;\u52a8\u6001 RAM<\/td>\n<td>\u4f9d\u9760\u7535\u8377\u4fdd\u5b58\u6570\u636e<\/td>\n<td>\u9700\u8981\u5468\u671f\u5237\u65b0<\/td>\n<td>\u8ba1\u7b97\u673a\u5185\u5b58\u3001\u90e8\u5206\u5916\u63a5\u5927\u5bb9\u91cf\u5185\u5b58<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>STM32F407 \u7684\u7247\u5185\u8fd0\u884c\u5185\u5b58\u4e3b\u8981\u662f SRAM\u3002\u8fd9\u91cc\u201c\u9759\u6001\u201d\u4e0d\u8868\u793a\u6389\u7535\u540e\u8fd8\u80fd\u4fdd\u5b58&#xff1b;\u666e\u901a SRAM \u548c DRAM \u90fd\u5c5e\u4e8e\u6613\u5931\u6027\u5b58\u50a8\u5668\u3002<\/p>\n<h4>2. ROM&#xff1a;\u9700\u8981\u7ed3\u5408\u8bed\u5883\u7406\u89e3\u201c\u53ea\u8bfb\u201d<\/h4>\n<p>ROM \u5168\u79f0\u662f Read-Only Memory&#xff0c;\u53ea\u8bfb\u5b58\u50a8\u5668\u3002<\/p>\n<p>\u4e25\u683c\u6765\u8bf4&#xff0c;\u4f20\u7edf\u63a9\u819c ROM \u7684\u5185\u5bb9\u5728\u5236\u9020\u65f6\u786e\u5b9a&#xff0c;\u7528\u6237\u4e0d\u80fd\u50cf\u5199 RAM \u90a3\u6837\u4fee\u6539\u3002\u540e\u6765\u51fa\u73b0\u4e86 PROM\u3001EPROM\u3001EEPROM \u7b49\u53ef\u7f16\u7a0b\u975e\u6613\u5931\u6027\u5b58\u50a8\u5668&#xff0c;\u201cROM\u201d\u4e5f\u5e38\u88ab\u7528\u4f5c\u8fd9\u4e2a\u6280\u672f\u5bb6\u65cf\u7684\u5bbd\u6cdb\u79f0\u547c\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u8d44\u6599\u4e2d\u7684\u201cROM\u201d\u53ef\u80fd\u8868\u793a&#xff1a;<\/p>\n<ul>\n<li>\u4e25\u683c\u610f\u4e49\u4e0a\u7684\u53ea\u8bfb\u5b58\u50a8\u5668\u3002<\/li>\n<li>\u5e7f\u4e49\u7684\u975e\u6613\u5931\u6027\u7a0b\u5e8f\u5b58\u50a8\u5668\u3002<\/li>\n<li>\u5de5\u5177\u94fe\u4e2d\u7684\u53ea\u8bfb\u5b58\u50a8\u533a\u57df&#xff0c;\u5e76\u4e0d\u6307\u5b9a\u67d0\u4e00\u79cd\u7269\u7406\u5668\u4ef6\u3002<\/li>\n<\/ul>\n<p>\u770b\u5230 ROM \u65f6&#xff0c;\u5148\u5224\u65ad\u5b83\u63cf\u8ff0\u7684\u662f\u5668\u4ef6\u7c7b\u578b&#xff0c;\u8fd8\u662f\u5de5\u7a0b\u91cc\u7684\u5b58\u50a8\u7528\u9014\u3002<\/p>\n<h4>3. Flash&#xff1a;\u53ef\u4ee5\u7535\u64e6\u5199\u7684\u975e\u6613\u5931\u6027\u5b58\u50a8\u5668<\/h4>\n<p>Flash \u5373\u95ea\u5b58&#xff0c;\u5c5e\u4e8e\u975e\u6613\u5931\u6027\u5b58\u50a8\u5668&#xff0c;\u901a\u5e38\u653e\u5728\u7535\u53ef\u64e6\u5199\u5b58\u50a8\u5668\u5bb6\u65cf\u4e2d\u8ba8\u8bba\u3002<\/p>\n<p>\u5b83\u4e0e\u5e38\u89c1 EEPROM \u7684\u4e00\u4e2a\u91cd\u8981\u533a\u522b&#xff0c;\u662f Flash \u901a\u5e38\u6309\u9875\u3001\u5757\u6216\u6247\u533a\u64e6\u9664&#xff0c;\u800c\u4e0d\u662f\u50cf RAM \u4e00\u6837\u968f\u65f6\u6309\u4efb\u610f\u5730\u5740\u8986\u76d6\u6570\u636e\u3002\u5177\u4f53\u7f16\u7a0b\u5355\u4f4d\u548c\u64e6\u9664\u5355\u4f4d\u7531\u5668\u4ef6\u51b3\u5b9a\u3002<\/p>\n<p>\u4ee5 STM32 \u5185\u90e8 Flash \u7684\u5e38\u89c1\u673a\u5236\u4e3a\u4f8b&#xff1a;\u64e6\u9664\u540e\u6570\u636e\u4f4d\u4e3a 1&#xff0c;\u7f16\u7a0b\u4f7f\u6307\u5b9a\u6570\u636e\u4f4d\u7531 1 \u53d8\u4e3a 0&#xff1b;\u8981\u6062\u590d\u4e3a 1&#xff0c;\u901a\u5e38\u9700\u8981\u64e6\u9664\u76f8\u5e94\u533a\u57df\u3002\u5b9e\u9645\u64cd\u4f5c\u8fd8\u5fc5\u987b\u6ee1\u8db3\u82af\u7247\u5bf9\u7f16\u7a0b\u5bbd\u5ea6\u3001\u4f9b\u7535\u3001\u7535\u538b\u548c\u64cd\u4f5c\u987a\u5e8f\u7684\u8981\u6c42\u3002<\/p>\n<p>\u6240\u4ee5&#xff0c;Flash \u53ef\u4ee5\u4fdd\u5b58\u7a0b\u5e8f&#xff0c;\u4e5f\u53ef\u4ee5\u4fdd\u5b58\u6821\u51c6\u53c2\u6570\u3001\u8bbe\u5907\u7f16\u53f7\u7b49\u6570\u636e&#xff0c;\u4f46\u6709\u64e6\u5199\u5bff\u547d\u4e0e\u64cd\u4f5c\u8017\u65f6\u9650\u5236&#xff0c;\u4e0d\u9002\u5408\u76f4\u63a5\u66ff\u4ee3\u9ad8\u9891\u66f4\u65b0\u7684 RAM \u53d8\u91cf\u3002<\/p>\n<h4>4. \u653e\u5728\u540c\u4e00\u5f20\u8868\u91cc\u6bd4\u8f83<\/h4>\n<table>\n<tr>\u9879\u76eeSRAM\u4f20\u7edf\u63a9\u819c ROM\u5e38\u89c1 EEPROMFlash<\/tr>\n<tbody>\n<tr>\n<td>\u6389\u7535\u4fdd\u6301<\/td>\n<td>\u5426<\/td>\n<td>\u662f<\/td>\n<td>\u662f<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<tr>\n<td>\u7528\u6237\u4fee\u6539<\/td>\n<td>\u666e\u901a\u8bfb\u5199\u5373\u53ef<\/td>\n<td>\u901a\u5e38\u4e0d\u80fd<\/td>\n<td>\u901a\u8fc7\u89c4\u5b9a\u7684\u5199\u5165\u6d41\u7a0b<\/td>\n<td>\u901a\u8fc7\u7f16\u7a0b\u3001\u64e6\u9664\u6d41\u7a0b<\/td>\n<\/tr>\n<tr>\n<td>\u66f4\u65b0\u7c92\u5ea6<\/td>\n<td>\u901a\u5e38\u652f\u6301\u5b57\u8282\u3001\u534a\u5b57\u3001\u5b57\u8bbf\u95ee<\/td>\n<td>\u4e0d\u9002\u7528<\/td>\n<td>\u5e38\u652f\u6301\u5b57\u8282\u66f4\u65b0&#xff0c;\u4e5f\u53ef\u80fd\u652f\u6301\u9875\u5199<\/td>\n<td>\u7f16\u7a0b\u7c92\u5ea6\u4e0e\u64e6\u9664\u7c92\u5ea6\u901a\u5e38\u4e0d\u540c<\/td>\n<\/tr>\n<tr>\n<td>\u901f\u5ea6\u7279\u70b9<\/td>\n<td>\u9002\u5408\u9891\u7e41\u8bfb\u5199<\/td>\n<td>\u9002\u5408\u8bfb\u53d6\u56fa\u5b9a\u5185\u5bb9<\/td>\n<td>\u5199\u5165\u901a\u5e38\u6bd4\u8bfb\u53d6\u6162<\/td>\n<td>\u7f16\u7a0b\u3001\u64e6\u9664\u901a\u5e38\u6bd4\u8bfb\u53d6\u6162<\/td>\n<\/tr>\n<tr>\n<td>\u5178\u578b\u7528\u9014<\/td>\n<td>\u53d8\u91cf\u3001\u7f13\u51b2\u533a\u3001\u6808\u3001\u5806<\/td>\n<td>\u56fa\u5b9a\u7a0b\u5e8f\u6216\u6570\u636e<\/td>\n<td>\u5c11\u91cf\u914d\u7f6e\u53c2\u6570<\/td>\n<td>\u56fa\u4ef6\u3001\u8d44\u6e90\u3001\u6301\u4e45\u5316\u6570\u636e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Flash \u8fd8\u53ef\u5206\u4e3a NOR Flash\u3001NAND Flash\u3002\u524d\u8005\u5e38\u7528\u4e8e\u4ee3\u7801\u5b58\u50a8\u548c\u76f4\u63a5\u8bfb\u53d6&#xff0c;\u540e\u8005\u5e38\u7528\u4e8e\u5927\u5bb9\u91cf\u5b58\u50a8\u3002\u672c\u6587\u8ba8\u8bba\u7684\u662f STM32 \u5185\u90e8\u7a0b\u5e8f Flash \u7684\u4f7f\u7528\u65b9\u5f0f&#xff0c;\u4e0d\u80fd\u628a\u5b83\u76f4\u63a5\u7b49\u540c\u4e8e\u6240\u6709\u95ea\u5b58\u8bbe\u5907\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101091646-6ae7037ef29da.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u4e8c\u3001\u4ee5 STM32 \u4e3a\u4f8b&#xff1a;\u82af\u7247\u5185\u90e8\u6709\u54ea\u4e9b\u5b58\u50a8\u533a\u57df&#xff1f;<\/h3>\n<h4>1. \u4e3b Flash&#xff1a;\u4fdd\u5b58\u7528\u6237\u7a0b\u5e8f\u4e0e\u521d\u59cb\u5185\u5bb9<\/h4>\n<p>\u5e38\u89c1 STM32 \u5de5\u7a0b\u4e2d&#xff0c;\u4e3b Flash \u901a\u5e38\u4fdd\u5b58&#xff1a;<\/p>\n<ul>\n<li>\u4e2d\u65ad\u5411\u91cf\u8868\u4e0e\u542f\u52a8\u4ee3\u7801\u3002<\/li>\n<li>\u51fd\u6570\u7f16\u8bd1\u540e\u7684\u673a\u5668\u6307\u4ee4\u3002<\/li>\n<li>\u53ea\u8bfb\u8868\u683c\u3001\u5b57\u7b26\u4e32\u7b49\u6570\u636e\u3002<\/li>\n<li>\u9700\u8981\u590d\u5236\u5230 RAM \u7684\u53d8\u91cf\u521d\u503c\u3002<\/li>\n<\/ul>\n<p>CPU \u901a\u5e38\u76f4\u63a5\u4ece Flash \u53d6\u6307\u6267\u884c&#xff0c;\u4e0d\u9700\u8981\u5148\u628a\u6574\u4e2a\u7a0b\u5e8f\u590d\u5236\u5230 RAM\u3002<\/p>\n<p>\u7279\u5b9a\u51fd\u6570\u4e5f\u53ef\u4ee5\u901a\u8fc7\u94fe\u63a5\u914d\u7f6e\u5b89\u6392\u5230\u53ef\u6267\u884c SRAM \u4e2d\u8fd0\u884c&#xff0c;\u4f46\u9700\u8981\u6b63\u786e\u5904\u7406\u5176\u52a0\u8f7d\u3001\u590d\u5236\u548c\u6267\u884c\u5730\u5740\u3002<\/p>\n<h4>2. SRAM&#xff1a;\u4fdd\u5b58\u8fd0\u884c\u4e2d\u7684\u53ef\u53d8\u72b6\u6001<\/h4>\n<p>SRAM \u901a\u5e38\u627f\u8f7d\u5168\u5c40\u53d8\u91cf\u3001\u9759\u6001\u53d8\u91cf\u3001\u6808\u3001\u5806\u548c\u5404\u79cd\u7f13\u51b2\u533a\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f&#xff1a;\u540c\u4e00\u82af\u7247\u91cc\u7684\u4e0d\u540c RAM \u533a\u57df&#xff0c;\u8bbf\u95ee\u80fd\u529b\u672a\u5fc5\u76f8\u540c\u3002<\/p>\n<p>\u4ee5 STM32F407 \u4e3a\u4f8b&#xff0c;\u5176 SRAM1\u3001SRAM2 \u4e0e CCM \u6570\u636e RAM \u4e0d\u5728\u540c\u4e00\u5730\u5740\u533a\u95f4\u3002CCM \u53ea\u4f9b CPU \u901a\u8fc7\u6570\u636e\u901a\u8def\u8bbf\u95ee&#xff0c;\u4e0d\u80fd\u628a\u9700\u8981 DMA \u8bbf\u95ee\u7684\u7f13\u51b2\u533a\u968f\u610f\u653e\u8fdb\u53bb&#xff0c;\u4e5f\u4e0d\u80fd\u628a\u5b83\u5f53\u6210\u666e\u901a\u53ef\u6267\u884c SRAM \u4f7f\u7528\u3002[1]<\/p>\n<p>\u8fd9\u5bf9 ADC &#043; DMA \u5c24\u5176\u91cd\u8981&#xff1a;\u7f13\u51b2\u533a\u201c\u653e\u5728 RAM\u201d\u8fd8\u4e0d\u591f&#xff0c;\u8fd8\u5fc5\u987b\u653e\u5728 DMA \u80fd\u8bbf\u95ee\u7684 RAM \u4e2d\u3002<\/p>\n<h4>3. \u7cfb\u7edf\u5b58\u50a8\u5668&#xff1a;\u5382\u5546\u9884\u7f6e Bootloader<\/h4>\n<p>STM32 \u7684\u7cfb\u7edf\u5b58\u50a8\u5668\u4e2d\u901a\u5e38\u9884\u7f6e ST \u7684\u542f\u52a8\u52a0\u8f7d\u7a0b\u5e8f&#xff0c;\u7528\u4e8e\u82af\u7247\u652f\u6301\u7684\u7cfb\u7edf\u4e0b\u8f7d\u65b9\u5f0f\u3002\u5177\u4f53\u652f\u6301\u54ea\u4e9b\u63a5\u53e3&#xff0c;\u8981\u67e5\u5bf9\u5e94\u578b\u53f7\u7684\u542f\u52a8\u6a21\u5f0f\u8d44\u6599\u3002<\/p>\n<p>\u5b83\u4e0e\u81ea\u5df1\u7f16\u5199\u3001\u70e7\u5f55\u5230\u7528\u6237 Flash \u4e2d\u7684 Bootloader \u662f\u4e24\u56de\u4e8b\u3002<\/p>\n<h4>4. \u5916\u8bbe\u5bc4\u5b58\u5668&#xff1a;\u6709\u5730\u5740&#xff0c;\u4e0d\u4ee3\u8868\u5c5e\u4e8e RAM<\/h4>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>GPIOA<span class=\"token operator\">-&gt;<\/span>ODR <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0x0001<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u8fd9\u6b21\u5199\u64cd\u4f5c\u8bbf\u95ee\u7684\u662f GPIO \u5916\u8bbe\u5bc4\u5b58\u5668\u3002\u5730\u5740\u8bd1\u7801\u7535\u8def\u628a\u8bbf\u95ee\u9001\u5230 GPIO \u786c\u4ef6&#xff0c;\u4ece\u800c\u6539\u53d8\u76f8\u5173\u8f93\u51fa\u72b6\u6001\u3002<\/p>\n<p>RAM\u3001Flash\u3001\u5916\u8bbe\u5bc4\u5b58\u5668\u90fd\u53ef\u4ee5\u51fa\u73b0\u5728 CPU \u7684\u5730\u5740\u7a7a\u95f4\u4e2d&#xff0c;\u4f46\u5730\u5740\u80cc\u540e\u8fde\u63a5\u7684\u786c\u4ef6\u4e0d\u540c\u3002<\/p>\n<table>\n<tr>\u6982\u5ff5\u56de\u7b54\u7684\u95ee\u9898<\/tr>\n<tbody>\n<tr>\n<td>\u5730\u5740\u7a7a\u95f4<\/td>\n<td>CPU \u80fd\u4f7f\u7528\u54ea\u4e9b\u5730\u5740\u8868\u793a\u8bbf\u95ee\u76ee\u6807&#xff1f;<\/td>\n<\/tr>\n<tr>\n<td>\u7269\u7406\u5b58\u50a8\u5668<\/td>\n<td>\u82af\u7247\u5b9e\u9645\u5b9e\u73b0\u4e86\u54ea\u4e9b\u5b58\u50a8\u786c\u4ef6&#xff1f;<\/td>\n<\/tr>\n<tr>\n<td>\u5b58\u50a8\u5bb9\u91cf<\/td>\n<td>\u67d0\u5757\u5b58\u50a8\u5668\u5b9e\u9645\u80fd\u4fdd\u5b58\u591a\u5c11\u6570\u636e&#xff1f;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>32 \u4f4d\u5730\u5740\u53ef\u4ee5\u8868\u793a\u5f88\u5927\u7684\u5730\u5740\u8303\u56f4&#xff0c;\u4e0d\u610f\u5473\u7740\u82af\u7247\u5185\u90e8\u771f\u7684\u88c5\u6709\u540c\u7b49\u5bb9\u91cf\u7684 RAM\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101091647-6ae7037fb65c2.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u4e09\u3001\u6e90\u7801\u53d8\u6210\u7a0b\u5e8f\u540e&#xff0c;\u4e3a\u4ec0\u4e48\u4f1a\u5206\u6210\u4e0d\u540c\u7684\u201c\u6bb5\u201d&#xff1f;<\/h3>\n<h4>1. \u7f16\u8bd1\u5668\u4e0e\u94fe\u63a5\u5668\u5206\u522b\u505a\u4ec0\u4e48&#xff1f;<\/h4>\n<p>\u6e90\u4ee3\u7801\u4e2d\u7684\u51fd\u6570\u548c\u53d8\u91cf&#xff0c;\u4e0d\u662f\u6309\u7167\u4e66\u5199\u987a\u5e8f\u76f4\u63a5\u585e\u8fdb Flash\u3002<\/p>\n<p>\u7f16\u8bd1\u5668\u5c06\u6e90\u7801\u8f6c\u6362\u4e3a\u76ee\u6807\u4ee3\u7801&#xff0c;\u5e76\u628a\u6307\u4ee4\u3001\u53ea\u8bfb\u6570\u636e\u3001\u53ef\u5199\u6570\u636e\u7b49\u5206\u5230\u4e0d\u540c\u8282\u533a&#xff1b;\u94fe\u63a5\u5668\u518d\u5408\u5e76\u76ee\u6807\u6587\u4ef6\u4e0e\u5e93&#xff0c;\u89e3\u6790\u51fd\u6570\u548c\u53d8\u91cf\u4e4b\u95f4\u7684\u5f15\u7528&#xff0c;\u6839\u636e\u94fe\u63a5\u914d\u7f6e\u5206\u914d\u5730\u5740\u3002<\/p>\n<p>\u94fe\u63a5\u811a\u672c\u6216 Keil \u7684 scatter \u6587\u4ef6&#xff0c;\u51b3\u5b9a\u5404\u7c7b\u5185\u5bb9\u6700\u7ec8\u653e\u5230\u54ea\u5757\u5b58\u50a8\u533a\u57df\u3002Keil \u7684 Target \u8bbe\u7f6e\u4e5f\u53ef\u4ee5\u4e3a\u94fe\u63a5\u5668\u63d0\u4f9b ROM\u3001RAM \u533a\u57df\u914d\u7f6e\u3002[2]<\/p>\n<h4>2. \u5e38\u89c1\u533a\u57df\u5206\u522b\u5b58\u653e\u4ec0\u4e48&#xff1f;<\/h4>\n<table>\n<tr>\u540d\u79f0\u5e38\u89c1\u5185\u5bb9\u5178\u578b\u8fd0\u884c\u4f4d\u7f6e\u662f\u5426\u9700\u8981\u4fdd\u5b58\u521d\u59cb\u5185\u5bb9\u5230 Flash<\/tr>\n<tbody>\n<tr>\n<td>.text<\/td>\n<td>\u51fd\u6570\u7684\u673a\u5668\u6307\u4ee4<\/td>\n<td>Flash<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<tr>\n<td>.rodata<\/td>\n<td>\u53ea\u8bfb\u5bf9\u8c61\u3001\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u3001\u5e38\u91cf\u8868<\/td>\n<td>Flash<\/td>\n<td>\u662f<\/td>\n<\/tr>\n<tr>\n<td>.data<\/td>\n<td>\u901a\u5e38\u4e3a\u5177\u6709\u975e\u96f6\u521d\u503c\u7684\u53ef\u5199\u9759\u6001\u5b58\u50a8\u671f\u5bf9\u8c61<\/td>\n<td>SRAM<\/td>\n<td>\u662f&#xff0c;\u4fdd\u5b58\u521d\u503c<\/td>\n<\/tr>\n<tr>\n<td>.bss<\/td>\n<td>\u901a\u5e38\u4e3a\u96f6\u521d\u59cb\u5316\u7684\u53ef\u5199\u9759\u6001\u5b58\u50a8\u671f\u5bf9\u8c61<\/td>\n<td>SRAM<\/td>\n<td>\u4e0d\u9010\u5b57\u8282\u4fdd\u5b58\u96f6\u503c<\/td>\n<\/tr>\n<tr>\n<td>\u6808<\/td>\n<td>\u8c03\u7528\u73b0\u573a\u3001\u90e8\u5206\u53c2\u6570\u548c\u81ea\u52a8\u53d8\u91cf\u7b49<\/td>\n<td>SRAM<\/td>\n<td>\u901a\u5e38\u4e0d\u9700\u8981<\/td>\n<\/tr>\n<tr>\n<td>\u5806<\/td>\n<td>\u52a8\u6001\u7533\u8bf7\u7684\u5185\u5b58<\/td>\n<td>SRAM<\/td>\n<td>\u901a\u5e38\u4e0d\u9700\u8981<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8fd9\u91cc\u6cbf\u7528\u5e38\u89c1\u7684\u201c\u7a0b\u5e8f\u6bb5\u201d\u8bf4\u6cd5&#xff0c;\u66f4\u4e25\u683c\u5730\u8bf4&#xff0c;.text \u7b49\u901a\u5e38\u662f\u76ee\u6807\u6587\u4ef6\u6216\u53ef\u6267\u884c\u6587\u4ef6\u4e2d\u7684\u8282&#xff08;section&#xff09;\u540d\u79f0&#xff0c;\u4e0d\u540c\u5de5\u5177\u94fe\u7684\u547d\u540d\u3001\u5408\u5e76\u65b9\u5f0f\u5e76\u4e0d\u5b8c\u5168\u4e00\u81f4\u3002<\/p>\n<p>\u6808\u548c\u5806\u5219\u662f\u8fd0\u884c\u65f6\u4f7f\u7528\u5185\u5b58\u7684\u65b9\u5f0f&#xff0c;\u53ef\u4ee5\u7531\u94fe\u63a5\u5668\u9884\u7559&#xff0c;\u4e5f\u53ef\u4ee5\u7531\u8fd0\u884c\u5e93\u6216\u7cfb\u7edf\u7ba1\u7406&#xff0c;\u4e0d\u4e00\u5b9a\u4e0e\u4e0a\u9762\u56db\u4e2a\u8282\u5904\u4e8e\u540c\u4e00\u5206\u7c7b\u5c42\u7ea7\u3002<\/p>\n<h4>3. \u4e3a\u4ec0\u4e48 .bss \u80fd\u8282\u7701 Flash&#xff1f;<\/h4>\n<p>\u8003\u8651\u4e00\u4e2a\u5168\u5c40\u6570\u7ec4&#xff1a;<\/p>\n<p><span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">char<\/span> rx_buffer<span class=\"token punctuation\">[<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5b83\u5177\u6709\u9759\u6001\u5b58\u50a8\u671f&#xff0c;\u542f\u52a8\u65f6\u5e94\u88ab\u521d\u59cb\u5316\u4e3a\u96f6\u3002\u5de5\u5177\u94fe\u901a\u5e38\u628a\u5b83\u653e\u5165 .bss\u3002<\/p>\n<p>\u7a0b\u5e8f\u53ea\u9700\u8981\u8bb0\u5f55\u8fd9\u7247\u533a\u57df\u7684\u5730\u5740\u548c\u957f\u5ea6&#xff0c;\u5728\u542f\u52a8\u65f6\u6e05\u96f6&#xff0c;\u65e0\u987b\u5728 Flash \u4e2d\u989d\u5916\u4fdd\u5b58 1024 \u4e2a\u96f6\u3002\u56e0\u6b64\u5b83\u901a\u5e38\u5360\u7528 1024 \u5b57\u8282 RAM&#xff0c;\u5374\u4e0d\u9700\u8981\u540c\u6837\u5927\u5c0f\u7684 Flash \u521d\u503c\u526f\u672c\u3002<\/p>\n<p>\u8fd9\u4e0d\u610f\u5473\u7740\u521d\u59cb\u5316\u201c\u5b8c\u5168\u514d\u8d39\u201d&#xff1a;\u63cf\u8ff0\u4fe1\u606f\u3001\u6e05\u96f6\u4ee3\u7801&#xff0c;\u4ee5\u53ca\u542f\u52a8\u65f6\u6267\u884c\u6e05\u96f6\u7684\u65f6\u95f4\u4ecd\u7136\u5b58\u5728\u3002<\/p>\n<h3>\u56db\u3001\u91cd\u70b9&#xff1a;\u4ee3\u7801\u91cc\u7684\u53d8\u91cf\u3001\u51fd\u6570&#xff0c;\u5230\u5e95\u653e\u5728\u54ea\u91cc&#xff1f;<\/h3>\n<h4>1. \u7528\u4e00\u6bb5\u4ee3\u7801\u5efa\u7acb\u5bf9\u5e94\u5173\u7cfb<\/h4>\n<p>\u4e0b\u9762\u662f\u7528\u4e8e\u5206\u6790\u7684\u793a\u4f8b&#xff0c;\u4e0d\u662f\u5730\u5740\u5206\u914d\u7684\u4fdd\u8bc1\u3002\u672a\u88ab\u4f7f\u7528\u7684\u5bf9\u8c61\u53ef\u80fd\u88ab\u4f18\u5316\u6216\u94fe\u63a5\u5220\u9664\u3002<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">define<\/span> <span class=\"token macro-name\">BUFFER_SIZE<\/span> <span class=\"token expression\"><span class=\"token number\">128<\/span><\/span><\/span><\/p>\n<p><span class=\"token keyword\">int<\/span> g_count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> g_zero <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> g_uninit<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> s_mode <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> g_limit <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">char<\/span> g_name<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;STM32&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">demo<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> input<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> local <span class=\"token operator\">&#061;<\/span> input <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> temp<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> calls <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> limit <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">char<\/span> text<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;ABC&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>message <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> <span class=\"token operator\">*<\/span>p <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">malloc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">4<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">sizeof<\/span> <span class=\"token operator\">*<\/span>p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    calls<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>p <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        p<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> local <span class=\"token operator\">&#043;<\/span> limit<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">free<\/span><span class=\"token punctuation\">(<\/span>p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<table>\n<tr>\u5bf9\u8c61\u5e38\u89c1\u4f4d\u7f6e\u89e3\u91ca<\/tr>\n<tbody>\n<tr>\n<td>g_count<\/td>\n<td>.data&#xff0c;\u8fd0\u884c\u65f6\u4f4d\u4e8e RAM<\/td>\n<td>\u521d\u503c 10 \u901a\u5e38\u4fdd\u5b58\u5728 Flash<\/td>\n<\/tr>\n<tr>\n<td>g_zero<\/td>\n<td>.bss<\/td>\n<td>\u663e\u5f0f\u521d\u59cb\u5316\u4e3a\u96f6&#xff0c;\u4e5f\u901a\u5e38\u4f7f\u7528\u6e05\u96f6\u673a\u5236<\/td>\n<\/tr>\n<tr>\n<td>g_uninit<\/td>\n<td>.bss<\/td>\n<td>\u672a\u663e\u5f0f\u521d\u59cb\u5316\u7684\u5168\u5c40\u53d8\u91cf\u4f1a\u88ab\u96f6\u521d\u59cb\u5316<\/td>\n<\/tr>\n<tr>\n<td>s_mode<\/td>\n<td>.data<\/td>\n<td>\u6587\u4ef6\u4f5c\u7528\u57df\u7684 static \u9650\u5236\u94fe\u63a5\u53ef\u89c1\u6027&#xff0c;\u4e0d\u610f\u5473\u7740\u53ea\u8bfb<\/td>\n<\/tr>\n<tr>\n<td>g_limit<\/td>\n<td>\u5e38\u89c1\u4e8e Flash \u4e2d\u7684\u53ea\u8bfb\u533a\u57df<\/td>\n<td>\u4e5f\u53ef\u80fd\u88ab\u5e38\u91cf\u6298\u53e0\u6216\u79fb\u9664<\/td>\n<\/tr>\n<tr>\n<td>g_name<\/td>\n<td>.data<\/td>\n<td>\u5b83\u662f\u53ef\u4fee\u6539\u6570\u7ec4&#xff0c;\u5305\u542b\u672b\u5c3e\u7684 \\\\0&#xff0c;\u5171 6 \u5b57\u8282<\/td>\n<\/tr>\n<tr>\n<td>input<\/td>\n<td>\u5bc4\u5b58\u5668\u6216\u6808<\/td>\n<td>\u7531\u8c03\u7528\u7ea6\u5b9a\u3001\u7c7b\u578b\u548c\u4f18\u5316\u7ed3\u679c\u51b3\u5b9a<\/td>\n<\/tr>\n<tr>\n<td>local\u3001temp<\/td>\n<td>\u5bc4\u5b58\u5668\u6216\u6808&#xff0c;\u4e5f\u53ef\u80fd\u6d88\u5931<\/td>\n<td>\u666e\u901a\u81ea\u52a8\u53d8\u91cf&#xff0c;temp \u672a\u8d4b\u503c\u524d\u4e0d\u80fd\u5f53\u6709\u6548\u6570\u636e\u4f7f\u7528<\/td>\n<\/tr>\n<tr>\n<td>calls<\/td>\n<td>.bss<\/td>\n<td>\u867d\u7136\u5199\u5728\u51fd\u6570\u5185&#xff0c;\u751f\u547d\u5468\u671f\u8986\u76d6\u6574\u4e2a\u7a0b\u5e8f\u8fd0\u884c\u671f\u95f4<\/td>\n<\/tr>\n<tr>\n<td>\u5c40\u90e8 limit<\/td>\n<td>\u53ef\u80fd\u76f4\u63a5\u6210\u4e3a\u6307\u4ee4\u4e2d\u7684\u5e38\u91cf<\/td>\n<td>const \u4e0d\u4fdd\u8bc1\u72ec\u7acb\u7684 Flash \u5b58\u50a8\u4f4d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td>text<\/td>\n<td>\u901a\u5e38\u662f\u6808\u4e0a\u7684\u6570\u7ec4<\/td>\n<td>\u6570\u7ec4\u5185\u5bb9\u53ef\u4fee\u6539&#xff0c;\u521d\u59cb\u5316\u65b9\u5f0f\u7531\u7f16\u8bd1\u5668\u51b3\u5b9a<\/td>\n<\/tr>\n<tr>\n<td>message<\/td>\n<td>\u5bc4\u5b58\u5668\u6216\u6808\u4e2d\u7684\u6307\u9488<\/td>\n<td>\u6307\u5411\u901a\u5e38\u4f4d\u4e8e\u53ea\u8bfb\u533a\u57df\u7684\u5b57\u7b26\u4e32\u5b57\u9762\u91cf<\/td>\n<\/tr>\n<tr>\n<td>p<\/td>\n<td>\u5bc4\u5b58\u5668\u6216\u6808\u4e2d\u7684\u6307\u9488<\/td>\n<td>\u6307\u5411\u52a8\u6001\u5206\u914d\u533a&#xff0c;\u5e76\u4e0d\u610f\u5473\u7740\u6307\u9488\u672c\u8eab\u5728\u5806\u91cc<\/td>\n<\/tr>\n<tr>\n<td>malloc() \u5206\u914d\u7684\u7a7a\u95f4<\/td>\n<td>\u5806\u6216\u8fd0\u884c\u5e93\u7ba1\u7406\u7684\u52a8\u6001\u5185\u5b58\u533a<\/td>\n<td>\u9700\u68c0\u67e5\u5931\u8d25\u5e76\u6309\u6240\u6709\u6743\u89c4\u5219\u91ca\u653e<\/td>\n<\/tr>\n<tr>\n<td>demo() \u7684\u673a\u5668\u6307\u4ee4<\/td>\n<td>\u901a\u5e38\u5728 Flash \u7684\u4ee3\u7801\u533a\u57df<\/td>\n<td>\u4e0e\u5b83\u8c03\u7528\u65f6\u4ea7\u751f\u7684\u6570\u636e\u5206\u5f00\u5b58\u653e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101091648-6ae7038062f50.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>2. \u4f5c\u7528\u57df\u3001\u751f\u547d\u5468\u671f\u3001\u5b58\u50a8\u4f4d\u7f6e\u8981\u5206\u5f00\u770b<\/h4>\n<p>\u8fd9\u4e09\u4e2a\u95ee\u9898\u5206\u522b\u662f&#xff1a;<\/p>\n<ul>\n<li>\u4f5c\u7528\u57df&#xff1a; \u5728\u6e90\u7801\u7684\u54ea\u4e9b\u5730\u65b9\u80fd\u901a\u8fc7\u8fd9\u4e2a\u540d\u5b57\u8bbf\u95ee\u5bf9\u8c61&#xff1f;<\/li>\n<li>\u751f\u547d\u5468\u671f&#xff1a; \u5bf9\u8c61\u4ece\u4ec0\u4e48\u65f6\u5019\u5b58\u5728&#xff0c;\u5230\u4ec0\u4e48\u65f6\u5019\u7ed3\u675f&#xff1f;<\/li>\n<li>\u5b58\u50a8\u4f4d\u7f6e&#xff1a; \u6700\u7ec8\u4f7f\u7528\u54ea\u5757\u7269\u7406\u5185\u5b58\u6216\u54ea\u4e2a\u5bc4\u5b58\u5668&#xff1f;<\/li>\n<\/ul>\n<p>\u4f8b\u5982 calls&#xff1a;\u540d\u5b57\u53ea\u80fd\u5728\u51fd\u6570\u5185\u90e8\u4f7f\u7528&#xff0c;\u5bf9\u8c61\u5374\u4e0d\u4f1a\u5728\u51fd\u6570\u8fd4\u56de\u65f6\u6d88\u5931&#xff0c;\u5e38\u89c1\u5b9e\u73b0\u4e2d\u4fdd\u5b58\u5728 RAM \u7684\u9759\u6001\u6570\u636e\u533a\u57df\u3002<\/p>\n<p>\u6240\u4ee5&#xff0c;\u201c\u5199\u5728\u51fd\u6570\u91cc\u201d\u4e0d\u80fd\u76f4\u63a5\u63a8\u5bfc\u51fa\u201c\u653e\u5728\u6808\u4e0a\u201d\u3002<\/p>\n<h4>3. const \u4e0d\u7b49\u4e8e\u201c\u5f3a\u5236\u653e\u8fdb Flash\u201d<\/h4>\n<p>const \u4e3b\u8981\u7ea6\u675f\u901a\u8fc7\u76f8\u5e94\u7c7b\u578b\u8fdb\u884c\u4fee\u6539\u7684\u884c\u4e3a&#xff0c;\u5e76\u4e0d\u76f4\u63a5\u6307\u5b9a\u7269\u7406\u5b58\u50a8\u5668\u3002<\/p>\n<p>\u5168\u5c40\u53ea\u8bfb\u6570\u7ec4\u901a\u5e38\u5f88\u9002\u5408\u653e\u5728 Flash&#xff0c;\u4f8b\u5982&#xff1a;<\/p>\n<p><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">short<\/span> sine_table<span class=\"token punctuation\">[<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f46\u5c40\u90e8 const int limit &#061; 20; \u53ef\u80fd\u76f4\u63a5\u88ab\u7f16\u8bd1\u5668\u66ff\u6362\u6210\u5e38\u91cf 20&#xff0c;\u6839\u672c\u6ca1\u6709\u72ec\u7acb\u5b58\u50a8\u7a7a\u95f4&#xff1b;\u9700\u8981\u5b9e\u9645\u5b58\u50a8\u65f6&#xff0c;\u4e5f\u672a\u5fc5\u4f4d\u4e8e Flash\u3002<\/p>\n<p>\u8fd8\u8981\u533a\u5206&#xff1a;<\/p>\n<p><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>p1<span class=\"token punctuation\">;<\/span>        <span class=\"token comment\">\/\/ \u4e0d\u80fd\u901a\u8fc7 p1 \u4fee\u6539\u5b83\u6240\u6307\u5411\u7684\u5b57\u7b26<\/span><br \/>\n<span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">const<\/span> p2 <span class=\"token operator\">&#061;<\/span> buf<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ p2 \u672c\u8eab\u4e0d\u80fd\u518d\u6539\u6307\u5411&#xff0c;buf \u987b\u5df2\u5b9a\u4e49<\/span><\/p>\n<p>\u7b2c\u4e00\u79cd\u9650\u5236\u6307\u5411\u7684\u6570\u636e&#xff0c;\u7b2c\u4e8c\u79cd\u9650\u5236\u6307\u9488\u5bf9\u8c61\u3002\u4e24\u8005\u90fd\u4e0d\u80fd\u5355\u51ed\u5199\u6cd5\u5224\u65ad\u6700\u7ec8\u5730\u5740\u3002<\/p>\n<h4>4. \u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u4e0e\u5b57\u7b26\u6570\u7ec4\u4e0d\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61<\/h4>\n<p><span class=\"token keyword\">char<\/span> a<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;ABC&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>b <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;ABC&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u82e5\u5b83\u4eec\u5b9a\u4e49\u5728\u51fd\u6570\u5185&#xff0c;a \u662f\u4e00\u4e2a\u5305\u542b 4 \u4e2a\u5b57\u7b26\u7684\u53ef\u5199\u81ea\u52a8\u6570\u7ec4&#xff0c;\u901a\u5e38\u4f4d\u4e8e\u6808&#xff1b;b \u662f\u6307\u9488&#xff0c;\u6307\u5411\u5177\u6709\u9759\u6001\u5b58\u50a8\u671f\u7684\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u3002<\/p>\n<p>\u53ef\u4ee5\u6267\u884c a[0] &#061; &#039;X&#039;;&#xff0c;\u4f46\u4e0d\u80fd\u4fee\u6539\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\u3002\u5373\u4f7f\u901a\u8fc7\u7c7b\u578b\u8f6c\u6362\u7ed5\u8fc7\u7c7b\u578b\u68c0\u67e5&#xff0c;\u5c1d\u8bd5\u4fee\u6539\u5b57\u9762\u91cf\u4f9d\u7136\u5c5e\u4e8e\u672a\u5b9a\u4e49\u884c\u4e3a\u3002[3]<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101091649-6ae703810f5b7.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>5. \u4e09\u4e2a\u5e38\u88ab\u8bef\u89e3\u7684\u5173\u952e\u5b57<\/h4>\n<table>\n<tr>\u5199\u6cd5\u771f\u6b63\u5f71\u54cd\u7684\u4e8b\u60c5\u4e0d\u80fd\u636e\u6b64\u65ad\u5b9a\u7684\u4e8b\u60c5<\/tr>\n<tbody>\n<tr>\n<td>#define N 100<\/td>\n<td>\u9884\u5904\u7406\u9636\u6bb5\u7684\u6587\u672c\u66ff\u6362<\/td>\n<td>\u4e0d\u4f1a\u56e0\u4e3a\u5b9a\u4e49\u4e86\u5b8f\u5c31\u751f\u6210\u4e00\u4e2a\u540d\u4e3a N \u7684\u53d8\u91cf<\/td>\n<\/tr>\n<tr>\n<td>volatile int flag<\/td>\n<td>\u5bf9\u8be5\u5bf9\u8c61\u8bbf\u95ee\u7684\u4f18\u5316\u7ea6\u675f<\/td>\n<td>\u4e0d\u6307\u5b9a\u653e\u5728\u54ea&#xff0c;\u4e0d\u4fdd\u8bc1\u539f\u5b50\u6027\u6216\u7ebf\u7a0b\u5b89\u5168<\/td>\n<\/tr>\n<tr>\n<td>register int x<\/td>\n<td>\u4f20\u7edf C \u4e2d\u5411\u5b9e\u73b0\u63d0\u4f9b\u5feb\u901f\u8bbf\u95ee\u7684\u5efa\u8bae&#xff0c;\u5e76\u9650\u5236\u53d6\u5730\u5740<\/td>\n<td>\u4e0d\u4fdd\u8bc1\u4e00\u5b9a\u5360\u7528 CPU \u5bc4\u5b58\u5668<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5b8f\u5c55\u5f00\u540e\u7684\u8868\u8fbe\u5f0f\u3001\u5b57\u7b26\u4e32\u6216\u4ee3\u7801\u4ecd\u7136\u53ef\u80fd\u5360\u7528\u7a7a\u95f4\u3002\u201c\u5b8f\u672c\u8eab\u4e0d\u662f\u53d8\u91cf\u201d\u4e0d\u7b49\u4e8e\u201c\u4f7f\u7528\u5b8f\u4e0d\u4f1a\u589e\u52a0\u7a0b\u5e8f\u5927\u5c0f\u201d\u3002<\/p>\n<h3>\u4e94\u3001\u4e3a\u4ec0\u4e48\u4e00\u4e2a\u53d8\u91cf\u4f1a\u540c\u65f6\u6d89\u53ca Flash \u548c RAM&#xff1f;<\/h3>\n<h4>1. \u4ece int count &#061; 10; \u770b\u4e24\u4efd\u4e0d\u540c\u804c\u8d23\u7684\u5185\u5bb9<\/h4>\n<p>\u5047\u8bbe\u8fd9\u662f\u4e00\u6761\u5168\u5c40\u5b9a\u4e49&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5728\u5e38\u89c1\u5de5\u7a0b\u4e2d&#xff0c;Flash \u4fdd\u5b58\u5b83\u7684\u521d\u59cb\u5185\u5bb9&#xff0c;RAM \u4fdd\u5b58\u7a0b\u5e8f\u5b9e\u9645\u8bfb\u5199\u7684\u5bf9\u8c61\u3002\u542f\u52a8\u65f6&#xff0c;\u521d\u59cb\u5316\u4ee3\u7801\u628a\u521d\u503c\u590d\u5236\u5230\u53d8\u91cf\u7684 RAM \u5730\u5740\u3002<\/p>\n<p>\u6267\u884c&#xff1a;<\/p>\n<p>count <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4fee\u6539\u7684\u662f RAM \u4e2d\u7684\u8fd0\u884c\u503c&#xff0c;\u4e0d\u4f1a\u81ea\u52a8\u66f4\u65b0 Flash \u4e2d\u7684\u521d\u503c\u3002\u4e0b\u6b21\u6309\u6b63\u5e38\u542f\u52a8\u6d41\u7a0b\u91cd\u65b0\u521d\u59cb\u5316\u540e&#xff0c;count \u53c8\u4f1a\u53d8\u6210 10\u3002<\/p>\n<p>\u82e5\u60f3\u6389\u7535\u4fdd\u5b58 20&#xff0c;\u9700\u8981\u663e\u5f0f\u6267\u884c\u975e\u6613\u5931\u6027\u5b58\u50a8\u64cd\u4f5c&#xff0c;\u5e76\u8bbe\u8ba1\u5b58\u50a8\u683c\u5f0f\u3001\u64e6\u5199\u4e0e\u6062\u590d\u6d41\u7a0b\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101091649-6ae70381b0662.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>2. \u52a0\u8f7d\u5730\u5740\u4e0e\u8fd0\u884c\u5730\u5740<\/h4>\n<table>\n<tr>\u5730\u5740\u6982\u5ff5\u5bf9 .data \u7684\u5178\u578b\u542b\u4e49<\/tr>\n<tbody>\n<tr>\n<td>\u52a0\u8f7d\u5730\u5740&#xff0c;LMA<\/td>\n<td>\u56fa\u4ef6\u4e2d\u521d\u59cb\u5185\u5bb9\u4fdd\u5b58\u7684\u4f4d\u7f6e&#xff0c;\u901a\u5e38\u4f4d\u4e8e Flash<\/td>\n<\/tr>\n<tr>\n<td>\u8fd0\u884c\u5730\u5740&#xff0c;VMA<\/td>\n<td>\u7a0b\u5e8f\u5b9e\u9645\u8bbf\u95ee\u5bf9\u8c61\u7684\u4f4d\u7f6e&#xff0c;\u901a\u5e38\u4f4d\u4e8e RAM<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5bf9\u4e8e\u76f4\u63a5\u5728 Flash \u6267\u884c\u7684\u4ee3\u7801&#xff0c;\u52a0\u8f7d\u5730\u5740\u548c\u8fd0\u884c\u5730\u5740\u901a\u5e38\u76f8\u540c\u3002\u5bf9\u4e8e\u5148\u4fdd\u5b58\u5728 Flash\u3001\u518d\u590d\u5236\u5230 SRAM \u6267\u884c\u7684\u51fd\u6570&#xff0c;\u5b83\u4eec\u4e5f\u53ef\u4ee5\u4e0d\u540c\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u201c\u4e00\u4e2a\u5bf9\u8c61\u5c5e\u4e8e\u54ea\u4e2a\u6bb5\u201d\u548c\u201c\u8fd9\u4e2a\u6bb5\u52a0\u8f7d\u3001\u8fd0\u884c\u5728\u54ea\u91cc\u201d\u9700\u8981\u7ed3\u5408\u8d77\u6765\u7406\u89e3\u3002<\/p>\n<h4>3. \u4ece\u590d\u4f4d\u5230 main()&#xff0c;\u53d1\u751f\u4e86\u4ec0\u4e48&#xff1f;<\/h4>\n<p>\u53ef\u4ee5\u6309\u4e0b\u9762\u7684\u6982\u5ff5\u6d41\u7a0b\u7406\u89e3&#xff1a;<\/p>\n<li>Cortex-M \u4ece\u542f\u52a8\u6620\u5c04\u5bf9\u5e94\u7684\u5411\u91cf\u8868\u53d6\u5f97\u521d\u59cb\u4e3b\u6808\u6307\u9488\u548c\u590d\u4f4d\u5165\u53e3\u3002<\/li>\n<li>\u8fdb\u5165\u590d\u4f4d\u5904\u7406\u7a0b\u5e8f&#xff0c;\u6267\u884c\u5fc5\u8981\u7684\u5e95\u5c42\u521d\u59cb\u5316\u3002<\/li>\n<li>\u542f\u52a8\u4ee3\u7801\u6216 C \u8fd0\u884c\u5e93\u628a .data \u7684\u521d\u59cb\u5185\u5bb9\u590d\u5236\u5230 RAM\u3002<\/li>\n<li>\u5c06 .bss \u5bf9\u5e94\u7684 RAM \u533a\u57df\u6e05\u96f6&#xff0c;\u5e76\u5b8c\u6210\u5176\u4ed6\u8fd0\u884c\u73af\u5883\u521d\u59cb\u5316\u3002<\/li>\n<li>\u8fdb\u5165 main()\u3002<\/li>\n<p>\u5177\u4f53\u5de5\u7a0b\u4e2d&#xff0c;\u7cfb\u7edf\u65f6\u949f\u521d\u59cb\u5316\u3001\u8fd0\u884c\u5e93\u521d\u59cb\u5316\u7b49\u8c03\u7528\u987a\u5e8f\u53ef\u80fd\u4e0d\u540c&#xff0c;\u4e0d\u80fd\u53ea\u51ed\u4e00\u4e2a\u51fd\u6570\u540d\u63a8\u65ad\u5168\u90e8\u6d41\u7a0b\u3002Keil \u5de5\u7a0b\u901a\u5e38\u8fd8\u9700\u8981\u7ee7\u7eed\u67e5\u770b\u590d\u4f4d\u5904\u7406\u7a0b\u5e8f\u8c03\u7528\u7684\u8fd0\u884c\u5e93\u5165\u53e3&#xff0c;\u800c\u4e0d\u662f\u53ea\u5728\u542f\u52a8\u6c47\u7f16\u91cc\u627e\u4e00\u6bb5\u660e\u663e\u7684\u590d\u5236\u5faa\u73af\u3002<\/p>\n<h4>4. \u4e3a\u4ec0\u4e48\u5168\u5c40\u53d8\u91cf\u9ed8\u8ba4\u662f\u96f6&#xff0c;\u666e\u901a\u5c40\u90e8\u53d8\u91cf\u5374\u4e0d\u662f&#xff1f;<\/h4>\n<p><span class=\"token keyword\">int<\/span> global_value<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">test<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> local_value<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>global_value \u5177\u6709\u9759\u6001\u5b58\u50a8\u671f&#xff0c;C \u8bed\u8a00\u8981\u6c42\u5b83\u5f97\u5230\u9ed8\u8ba4\u521d\u59cb\u5316\u3002\u5bf9\u4e8e\u8fd9\u91cc\u7684\u6574\u6570\u7c7b\u578b&#xff0c;\u7ed3\u679c\u662f\u96f6&#xff1b;STM32 \u5de5\u7a0b\u901a\u5e38\u901a\u8fc7\u542f\u52a8\u65f6\u6e05\u96f6 .bss \u6765\u5b9e\u73b0\u3002<\/p>\n<p>local_value \u662f\u672a\u521d\u59cb\u5316\u7684\u81ea\u52a8\u5bf9\u8c61&#xff0c;\u4e0d\u80fd\u628a\u5b83\u5f53\u6210\u5df2\u6709\u6709\u6548\u6570\u503c\u6765\u8bfb\u53d6\u3002\u628a\u5b83\u89e3\u91ca\u4e3a\u201c\u968f\u673a\u6570\u201d\u4e5f\u4e0d\u4e25\u8c28&#xff1a;\u6d89\u53ca\u7684\u662f\u4e0d\u786e\u5b9a\u503c\u53ca\u76f8\u5e94\u7684\u8bed\u8a00\u89c4\u5219&#xff0c;\u67d0\u4e9b\u8bfb\u53d6\u4f1a\u4ea7\u751f\u672a\u5b9a\u4e49\u884c\u4e3a\u3002<\/p>\n<p>\u5168\u5c40\u53d8\u91cf\u521d\u59cb\u4e3a\u96f6&#xff0c;\u662f\u8bed\u8a00\u89c4\u5219\u4e0e\u542f\u52a8\u521d\u59cb\u5316\u5171\u540c\u4fdd\u8bc1\u7684\u7ed3\u679c&#xff0c;\u4e0d\u662f RAM \u4e0a\u7535\u540e\u5929\u7136\u5168\u96f6\u3002<\/p>\n<p>\u53e6\u5916&#xff0c;\u67d0\u4e9b\u5de5\u7a0b\u4f1a\u663e\u5f0f\u8bbe\u7f6e noinit \u533a\u57df\u7528\u4e8e\u7279\u5b9a\u4fdd\u7559\u7528\u9014&#xff0c;\u8fd9\u5c5e\u4e8e\u4e13\u95e8\u914d\u7f6e&#xff0c;\u9700\u8981\u53e6\u5916\u5efa\u7acb\u6709\u6548\u6027\u5224\u65ad&#xff0c;\u4e0d\u80fd\u5957\u7528\u666e\u901a .bss \u7684\u7ed3\u8bba\u3002<\/p>\n<h3>\u516d\u3001\u51fd\u6570\u8fd0\u884c\u65f6&#xff0c;\u6808\u548c\u5806\u5230\u5e95\u53d1\u751f\u4e86\u4ec0\u4e48&#xff1f;<\/h3>\n<h4>1. \u51fd\u6570\u4ee3\u7801\u4e0e\u8c03\u7528\u73b0\u573a\u5206\u5f00\u5b58\u50a8<\/h4>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">add<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> a<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> b<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> result <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">&#043;<\/span> b<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>add() \u7f16\u8bd1\u540e\u7684\u52a0\u6cd5\u3001\u8fd4\u56de\u7b49\u673a\u5668\u6307\u4ee4\u901a\u5e38\u4f4d\u4e8e Flash\u3002\u8c03\u7528\u5b83\u65f6&#xff0c;\u53c2\u6570\u3001\u7ed3\u679c\u548c\u5fc5\u8981\u7684\u73b0\u573a\u6570\u636e\u5219\u53ef\u80fd\u4f4d\u4e8e CPU \u5bc4\u5b58\u5668\u6216 RAM \u4e2d\u7684\u6808\u3002<\/p>\n<p>\u51fd\u6570\u7684\u6bcf\u6b21\u8c03\u7528\u5e76\u4e0d\u4f1a\u628a\u673a\u5668\u6307\u4ee4\u91cd\u65b0\u590d\u5236\u4e00\u904d\u3002\u9012\u5f52\u65f6\u901a\u5e38\u662f\u591a\u4efd\u8c03\u7528\u73b0\u573a\u5171\u7528\u540c\u4e00\u4efd\u51fd\u6570\u4ee3\u7801\u3002<\/p>\n<p>\u7b80\u5355\u51fd\u6570\u7ecf\u8fc7\u4f18\u5316\u540e&#xff0c;\u53c2\u6570\u548c\u7ed3\u679c\u53ef\u80fd\u5168\u90e8\u901a\u8fc7\u5bc4\u5b58\u5668\u4f20\u9012&#xff0c;\u751a\u81f3\u88ab\u5185\u8054&#xff0c;\u672a\u5fc5\u5efa\u7acb\u72ec\u7acb\u6808\u5e27\u3002\u5bf9 Cortex-M \u6765\u8bf4&#xff0c;\u8fd4\u56de\u4fe1\u606f\u4e5f\u53ef\u80fd\u5148\u4fdd\u5b58\u5728\u94fe\u63a5\u5bc4\u5b58\u5668\u4e2d&#xff0c;\u4ec5\u5728\u9700\u8981\u65f6\u5165\u6808\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101091650-6ae703825de48.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>2. \u4e3a\u4ec0\u4e48\u4e0d\u80fd\u8fd4\u56de\u666e\u901a\u5c40\u90e8\u53d8\u91cf\u7684\u5730\u5740&#xff1f;<\/h4>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token operator\">*<\/span><span class=\"token function\">wrong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> value <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">123<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token operator\">&amp;<\/span>value<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u9519\u8bef\u793a\u4f8b<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u51fd\u6570\u8fd4\u56de\u540e&#xff0c;value \u7684\u751f\u547d\u5468\u671f\u7ed3\u675f\u3002\u5373\u4f7f\u90a3\u7247\u5185\u5b58\u7684\u5b57\u8282\u6682\u65f6\u6ca1\u6709\u53d8\u5316&#xff0c;\u4e5f\u4e0d\u80fd\u7ee7\u7eed\u901a\u8fc7\u8be5\u5730\u5740\u8bbf\u95ee\u5df2\u7ecf\u7ed3\u675f\u751f\u547d\u5468\u671f\u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u5e38\u89c1\u6539\u6cd5\u662f\u8fd4\u56de\u503c\u672c\u8eab&#xff0c;\u6216\u8ba9\u8c03\u7528\u8005\u63d0\u4f9b\u7f13\u51b2\u533a\u3002\u6539\u6210 static \u867d\u80fd\u5ef6\u957f\u751f\u547d\u5468\u671f&#xff0c;\u5374\u4e5f\u4f1a\u8ba9\u6240\u6709\u8c03\u7528\u5171\u4eab\u540c\u4e00\u5bf9\u8c61&#xff0c;\u9700\u8981\u8003\u8651\u91cd\u5165\u548c\u5e76\u53d1\u8bbf\u95ee\u95ee\u9898\u3002<\/p>\n<h4>3. \u5927\u6570\u7ec4\u548c\u9012\u5f52\u4e3a\u4ec0\u4e48\u5bb9\u6613\u8017\u5c3d\u6808&#xff1f;<\/h4>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">process<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">char<\/span> buffer<span class=\"token punctuation\">[<\/span><span class=\"token number\">4096<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5047\u8bbe\u540e\u7eed\u5b9e\u9645\u4f7f\u7528\u8be5\u6570\u7ec4<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5982\u679c\u8be5\u6570\u7ec4\u88ab\u5b9e\u9645\u4fdd\u7559\u5728\u6808\u4e0a&#xff0c;\u5355\u5b83\u5c31\u9700\u8981\u7ea6 4 KiB&#xff0c;\u518d\u52a0\u4e0a\u5176\u4ed6\u5c40\u90e8\u6570\u636e\u3001\u4fdd\u5b58\u7684\u5bc4\u5b58\u5668\u4ee5\u53ca\u4e2d\u65ad\u5d4c\u5957\u5f00\u9500&#xff0c;\u53ef\u80fd\u8d85\u51fa\u6808\u7a7a\u95f4\u3002<\/p>\n<p>\u6539\u6210 static \u901a\u5e38\u80fd\u628a\u5b83\u79fb\u5230\u9759\u6001\u6570\u636e\u533a&#xff0c;\u4f46\u5b83\u4ecd\u7136\u5360\u7528 RAM&#xff0c;\u800c\u4e14\u6574\u6bb5\u7a0b\u5e8f\u8fd0\u884c\u671f\u95f4\u90fd\u8981\u4fdd\u7559\u3002\u5b83\u89e3\u51b3\u7684\u662f\u6808\u538b\u529b&#xff0c;\u5e76\u4e0d\u4f1a\u8ba9\u603b RAM \u5f00\u9500\u6d88\u5931\u3002<\/p>\n<h4>4. \u5806&#xff1a;\u5bf9\u8c61\u4f55\u65f6\u6d88\u5931\u7531\u5206\u914d\u4e0e\u91ca\u653e\u6d41\u7a0b\u51b3\u5b9a<\/h4>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token operator\">*<\/span>p <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">malloc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">sizeof<\/span> <span class=\"token operator\">*<\/span>p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>p <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    p<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">123<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">free<\/span><span class=\"token punctuation\">(<\/span>p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    p <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>p \u82e5\u662f\u5c40\u90e8\u6307\u9488&#xff0c;\u5176\u81ea\u8eab\u901a\u5e38\u5728\u5bc4\u5b58\u5668\u6216\u6808\u4e2d&#xff1b;\u7533\u8bf7\u5230\u7684\u7a7a\u95f4\u5219\u7531\u52a8\u6001\u5206\u914d\u5668\u7ba1\u7406\u3002<\/p>\n<p>malloc() \u4e0d\u4fdd\u8bc1\u8fd4\u56de\u96f6\u521d\u59cb\u5316\u7684\u5185\u5b58&#xff0c;\u4e5f\u53ef\u80fd\u5206\u914d\u5931\u8d25\u3002\u51fd\u6570\u8fd4\u56de\u4e0d\u4f1a\u81ea\u52a8\u91ca\u653e\u6210\u529f\u7533\u8bf7\u7684\u90a3\u5757\u7a7a\u95f4\u3002free() \u540e\u518d\u8bbf\u95ee\u8be5\u7a7a\u95f4\u5c5e\u4e8e\u9519\u8bef&#xff1b;\u628a p \u8bbe\u4e3a NULL \u4e5f\u4e0d\u4f1a\u81ea\u52a8\u4fee\u590d\u5176\u4ed6\u6307\u5411\u540c\u4e00\u5757\u5185\u5b58\u7684\u6307\u9488\u3002<\/p>\n<p>\u5bf9\u4e8e\u5d4c\u5165\u5f0f\u63a7\u5236\u7a0b\u5e8f&#xff0c;\u8fd8\u5e94\u5173\u6ce8\u52a8\u6001\u5206\u914d\u7684\u65f6\u95f4\u6ce2\u52a8\u3001\u7ba1\u7406\u5f00\u9500\u548c\u788e\u7247\u95ee\u9898\u3002\u56fa\u5b9a\u5927\u5c0f\u7f13\u51b2\u533a\u3001\u5185\u5b58\u6c60\u6216\u542f\u52a8\u65f6\u96c6\u4e2d\u5206\u914d&#xff0c;\u5f80\u5f80\u66f4\u5bb9\u6613\u5206\u6790\u8d44\u6e90\u4e0a\u9650\u3002<\/p>\n<h4>5. \u4f18\u5316\u4f1a\u6539\u53d8\u201c\u770b\u8d77\u6765\u5e94\u8be5\u5b58\u5728\u201d\u7684\u53d8\u91cf<\/h4>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">calculate<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> a <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> b <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> a <span class=\"token operator\">&#043;<\/span> b<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7f16\u8bd1\u5668\u53ef\u80fd\u76f4\u63a5\u751f\u6210\u201c\u8fd4\u56de 30\u201d\u7684\u4ee3\u7801\u3002\u6b64\u65f6\u5e76\u4e0d\u9700\u8981\u4e3a a \u548c b \u5206\u914d\u72ec\u7acb RAM \u7a7a\u95f4\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u8c03\u8bd5\u5668\u63d0\u793a\u53d8\u91cf\u88ab\u4f18\u5316\u6389&#xff0c;\u4e0d\u4e00\u5b9a\u662f\u7a0b\u5e8f\u51fa\u9519\u3002\u5b58\u50a8\u4f4d\u7f6e\u5fc5\u987b\u4ee5\u6700\u7ec8\u6784\u5efa\u7ed3\u679c\u4e3a\u51c6\u3002<\/p>\n<h3>\u4e03\u3001\u5982\u4f55\u9a8c\u8bc1&#xff0c;\u800c\u4e0d\u662f\u53ea\u80cc\u7ed3\u8bba&#xff1f;<\/h3>\n<h4>1. \u5148\u770b Keil \u7684\u5927\u5c0f\u7edf\u8ba1<\/h4>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<p>Program Size: Code&#061;12000 RO-data&#061;2000 RW-data&#061;100 ZI-data&#061;3000<\/p>\n<table>\n<tr>\u5b57\u6bb5\u542b\u4e49<\/tr>\n<tbody>\n<tr>\n<td>Code<\/td>\n<td>\u4ee3\u7801\u7edf\u8ba1\u7c7b\u522b&#xff0c;\u4e3b\u8981\u5305\u542b\u673a\u5668\u6307\u4ee4<\/td>\n<\/tr>\n<tr>\n<td>RO-data<\/td>\n<td>\u53ea\u8bfb\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td>RW-data<\/td>\n<td>\u6709\u521d\u59cb\u5185\u5bb9\u7684\u53ef\u5199\u6570\u636e<\/td>\n<\/tr>\n<tr>\n<td>ZI-data<\/td>\n<td>\u96f6\u521d\u59cb\u5316\u6570\u636e\u7edf\u8ba1\u7c7b\u522b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5728\u666e\u901a\u3001\u672a\u538b\u7f29\u3001\u4ee3\u7801\u4e0e\u53ea\u8bfb\u6570\u636e\u4f4d\u4e8e Flash \u7684\u914d\u7f6e\u4e0b&#xff0c;\u53ef\u4ee5\u5148\u4f5c\u8fd1\u4f3c\u4f30\u7b97&#xff1a;[4]<\/p>\n<p>Flash \u5360\u7528 \u2248 Code &#043; RO-data &#043; RW-data<br \/>\nRAM \u4e2d\u5df2\u7edf\u8ba1\u7684 RW\/ZI \u533a\u57df \u2248 RW-data &#043; ZI-data<\/p>\n<p>\u8fd9\u4e2a\u4f8b\u5b50\u5f97\u5230 Flash \u7ea6 14100 \u5b57\u8282&#xff0c;RW\/ZI \u533a\u57df\u7ea6 3100 \u5b57\u8282\u3002<\/p>\n<p>\u4f46\u662f&#xff0c;\u4e0d\u80fd\u53ea\u51ed\u7b2c\u4e8c\u4e2a\u6570\u5c31\u5ba3\u5e03\u201c\u8fd0\u884c\u65f6 RAM \u4e00\u5b9a\u591f\u7528\u201d\u3002<\/p>\n<ul>\n<li>\u6808\u548c\u5806\u662f\u5426\u5df2\u7ecf\u4f5c\u4e3a\u9884\u7559\u533a\u8ba1\u5165\u7edf\u8ba1&#xff0c;\u8981\u770b\u5de5\u7a0b\u7684\u542f\u52a8\u6587\u4ef6\u3001\u94fe\u63a5\u914d\u7f6e\u4e0e map \u6587\u4ef6\u3002<\/li>\n<li>\u82e5\u5df2\u8ba1\u5165&#xff0c;\u4e0d\u80fd\u518d\u91cd\u590d\u76f8\u52a0&#xff1b;\u82e5\u672a\u8ba1\u5165&#xff0c;\u5219\u9700\u8981\u5355\u72ec\u9884\u7b97\u3002<\/li>\n<li>\u5b9e\u9645\u6808\u5cf0\u503c\u4e0e\u8c03\u7528\u6df1\u5ea6\u3001\u4e2d\u65ad\u5d4c\u5957\u6709\u5173&#xff0c;\u4e0d\u80fd\u53ea\u770b\u9884\u7559\u7a7a\u95f4\u7684\u5927\u5c0f\u3002<\/li>\n<li>\u5bf9\u9f50\u3001\u586b\u5145\u3001\u6570\u636e\u538b\u7f29\u3001\u81ea\u5b9a\u4e49\u6bb5\u53ca RAM \u6267\u884c\u4ee3\u7801\u53ef\u80fd\u4f7f\u7b80\u5355\u516c\u5f0f\u4e0e\u6700\u7ec8\u88c5\u8f7d\u8303\u56f4\u4e0d\u540c\u3002<\/li>\n<\/ul>\n<h4>2. \u67e5\u770b .map \u6587\u4ef6<\/h4>\n<p>\u751f\u6210\u94fe\u63a5 map \u6587\u4ef6\u540e&#xff0c;\u53ef\u4ee5\u641c\u7d22\u53d8\u91cf\u540d\u6216\u51fd\u6570\u540d&#xff0c;\u91cd\u70b9\u770b&#xff1a;<\/p>\n<li>\u7b26\u53f7\u662f\u5426\u771f\u5b9e\u5b58\u5728&#xff0c;\u662f\u5426\u88ab\u5220\u9664\u6216\u5185\u8054\u3002<\/li>\n<li>\u7b26\u53f7\u6240\u5c5e\u8282\u533a\u53ca\u5927\u5c0f\u3002<\/li>\n<li>\u6267\u884c\u533a\u57df\u7684\u5730\u5740\u8303\u56f4\u3002<\/li>\n<li>\u5bf9\u5e94\u52a0\u8f7d\u533a\u57df\u5728\u54ea\u91cc\u3002<\/li>\n<li>\u6808\u3001\u5806\u3001\u81ea\u5b9a\u4e49\u533a\u662f\u5426\u88ab\u9884\u7559\u548c\u7edf\u8ba1\u3002<\/li>\n<p>\u5bf9\u5e38\u89c1 STM32F407 \u5de5\u7a0b\u6765\u8bf4&#xff0c;\u4e3b Flash \u4ece 0x08000000 \u5f00\u59cb&#xff0c;\u666e\u901a SRAM \u533a\u4ece 0x20000000 \u5f00\u59cb&#xff0c;CCM \u6570\u636e RAM \u4ece 0x10000000 \u5f00\u59cb\u3002\u5b9e\u9645\u6709\u6548\u8303\u56f4\u4e0e\u5bb9\u91cf\u9700\u8981\u7ed3\u5408\u5177\u4f53\u578b\u53f7\u53ca\u624b\u518c\u5224\u65ad&#xff0c;\u4e0d\u80fd\u4ec5\u51ed\u5730\u5740\u524d\u7f00\u786e\u8ba4\u6240\u6709\u5730\u5740\u90fd\u6709\u6548\u3002[1]<\/p>\n<p>\u51fd\u6570\u4e0e\u53d8\u91cf\u7684\u5730\u5740\u4e5f\u4e0d\u662f\u7531\u6e90\u7801\u987a\u5e8f\u56fa\u5b9a\u51b3\u5b9a\u7684\u3002\u589e\u52a0\u4e00\u4e2a\u5e93\u51fd\u6570\u3001\u8c03\u6574\u4f18\u5316\u7b49\u7ea7\u6216\u4fee\u6539\u94fe\u63a5\u914d\u7f6e&#xff0c;\u90fd\u53ef\u80fd\u6539\u53d8\u5e03\u5c40\u3002<\/p>\n<h4>3. \u505a\u4e00\u4e2a\u5c0f\u5b9e\u9a8c<\/h4>\n<p>\u51c6\u5907\u4ee5\u4e0b\u5b9a\u4e49&#xff0c;\u5e76\u5728 main() \u4e2d\u5b9e\u9645\u4f7f\u7528\u5b83\u4eec&#xff1a;<\/p>\n<p><span class=\"token keyword\">int<\/span> g_a <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">123<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> g_b<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> g_c <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">456<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">inspect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">void<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> local <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">789<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> persistent<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>text <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;STM32&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5728\u6b64\u8bbe\u7f6e\u65ad\u70b9&#xff0c;\u7ed3\u5408 Watch\u3001Memory\u3001\u53cd\u6c47\u7f16\u89c2\u5bdf<\/span><br \/>\n    g_b <span class=\"token operator\">&#061;<\/span> local <span class=\"token operator\">&#043;<\/span> g_c<span class=\"token punctuation\">;<\/span><br \/>\n    persistent<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    g_a <span class=\"token operator\">&#043;&#061;<\/span> text<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#043;<\/span> persistent<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5efa\u8bae\u5148\u4f7f\u7528\u4fbf\u4e8e\u8c03\u8bd5\u7684\u8f83\u4f4e\u4f18\u5316\u8bbe\u7f6e&#xff0c;\u518d\u505a\u4ee5\u4e0b\u89c2\u5bdf&#xff1a;<\/p>\n<table>\n<tr>\u89c2\u5bdf\u9879\u76ee\u8981\u9a8c\u8bc1\u7684\u4e8b\u60c5<\/tr>\n<tbody>\n<tr>\n<td>&amp;g_a\u3001&amp;g_b<\/td>\n<td>\u53ef\u5199\u5168\u5c40\u5bf9\u8c61\u7684\u8fd0\u884c\u5730\u5740\u901a\u5e38\u5728 RAM<\/td>\n<\/tr>\n<tr>\n<td>&amp;g_c<\/td>\n<td>\u88ab\u5b9e\u9645\u4fdd\u7559\u7684\u53ea\u8bfb\u5bf9\u8c61\u662f\u5426\u4f4d\u4e8e Flash<\/td>\n<\/tr>\n<tr>\n<td>&amp;persistent<\/td>\n<td>\u51fd\u6570\u5185 static \u7684\u5730\u5740\u901a\u5e38\u5c5e\u4e8e\u9759\u6001\u6570\u636e\u533a<\/td>\n<\/tr>\n<tr>\n<td>&amp;local<\/td>\n<td>\u81ea\u52a8\u53d8\u91cf\u88ab\u5b9e\u9645\u5206\u914d\u5230\u5185\u5b58\u540e\u7684\u5730\u5740<\/td>\n<\/tr>\n<tr>\n<td>text \u4e0e &amp;text<\/td>\n<td>\u5b57\u7b26\u4e32\u5730\u5740\u4e0e\u6307\u9488\u5bf9\u8c61\u81ea\u8eab\u7684\u5730\u5740\u4e0d\u540c<\/td>\n<\/tr>\n<tr>\n<td>\u53cd\u6c47\u7f16\u7a97\u53e3<\/td>\n<td>\u54ea\u4e9b\u503c\u901a\u8fc7\u5bc4\u5b58\u5668\u4f20\u9012&#xff0c;\u54ea\u4e9b\u5bf9\u8c61\u88ab\u4f18\u5316\u6389<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6ce8\u610f&#xff1a;\u5728\u6e90\u7801\u4e2d\u589e\u52a0\u53d6\u5730\u5740\u64cd\u4f5c&#xff0c;\u5c24\u5176\u628a\u5730\u5740\u4f20\u7ed9\u5176\u4ed6\u51fd\u6570\u65f6&#xff0c;\u53ef\u80fd\u8feb\u4f7f\u5bf9\u8c61\u5b9e\u9645\u843d\u5230\u5185\u5b58&#xff1b;\u8c03\u8bd5\u5668\u4e5f\u4e0d\u4e00\u5b9a\u80fd\u4e3a\u5bc4\u5b58\u5668\u4e2d\u7684\u5bf9\u8c61\u63d0\u4f9b\u53ef\u53d6\u7684\u5185\u5b58\u5730\u5740\u3002\u5b9e\u9a8c\u5f97\u5230\u7684\u662f\u5f53\u524d\u4ee3\u7801\u3001\u5f53\u524d\u914d\u7f6e\u4e0b\u7684\u7ed3\u679c\u3002<\/p>\n<p>\u53e6\u5916&#xff0c;\u666e\u901a\u201c\u590d\u4f4d\u201d\u4e0d\u4ee3\u8868\u6240\u6709 SRAM \u7269\u7406\u5b57\u8282\u90fd\u4f1a\u88ab\u786c\u4ef6\u6e05\u96f6&#xff1b;\u8c03\u8bd5\u5668\u4e5f\u53ef\u80fd\u53c2\u4e0e\u521d\u59cb\u5316\u3002\u5224\u65ad\u53d8\u91cf\u6062\u590d\u539f\u56e0\u65f6&#xff0c;\u8981\u533a\u5206\u65ad\u7535\u3001\u590d\u4f4d&#xff0c;\u4ee5\u53ca\u542f\u52a8\u4ee3\u7801\u91cd\u65b0\u6267\u884c\u8fd9\u51e0\u4ef6\u4e8b\u3002<\/p>\n<h3>\u6587\u672b\u901f\u67e5&#xff1a;C \u8bed\u8a00\u5bf9\u8c61\u901a\u5e38\u5b58\u5728\u54ea\u91cc&#xff1f;<\/h3>\n<p>\u4e0b\u8868\u6cbf\u7528\u672c\u6587\u7684\u5e38\u89c1 STM32 \u914d\u7f6e&#xff0c;\u6389\u7535\u4fdd\u6301\u6307\u5b9e\u9645\u8fd0\u884c\u503c\u80fd\u5426\u4fdd\u7559\u3002<\/p>\n<table>\n<tr>\u5185\u5bb9\u5e38\u89c1\u5b58\u50a8\u533a\u57df\u8fd0\u884c\u503c\u6389\u7535\u4fdd\u6301\u521d\u59cb\u5316\u65b9\u5f0f<\/tr>\n<tbody>\n<tr>\n<td>\u51fd\u6570\u673a\u5668\u6307\u4ee4<\/td>\n<td>Flash&#xff0c;\u4ee3\u7801\u533a<\/td>\n<td>\u662f&#xff0c;\u6307\u4ee4\u5185\u5bb9\u4fdd\u7559<\/td>\n<td>\u70e7\u5f55<\/td>\n<\/tr>\n<tr>\n<td>\u5168\u5c40\u53ea\u8bfb\u5e38\u91cf\u3001\u5e38\u91cf\u8868<\/td>\n<td>Flash&#xff0c;\u53ea\u8bfb\u533a<\/td>\n<td>\u662f&#xff0c;\u82e5\u5bf9\u8c61\u88ab\u4fdd\u7559\u5728\u6b64<\/td>\n<td>\u70e7\u5f55<\/td>\n<\/tr>\n<tr>\n<td>\u5b57\u7b26\u4e32\u5b57\u9762\u91cf<\/td>\n<td>\u901a\u5e38\u5728 Flash&#xff0c;\u53ea\u8bfb\u533a<\/td>\n<td>\u901a\u5e38\u662f<\/td>\n<td>\u70e7\u5f55<\/td>\n<\/tr>\n<tr>\n<td>\u975e\u96f6\u521d\u59cb\u5316\u7684\u53ef\u5199\u5168\u5c40\u3001\u9759\u6001\u53d8\u91cf<\/td>\n<td>RAM&#xff0c;.data<\/td>\n<td>\u5426&#xff0c;Flash \u4ec5\u4fdd\u5b58\u521d\u59cb\u5185\u5bb9<\/td>\n<td>\u542f\u52a8\u65f6\u590d\u5236\u521d\u503c<\/td>\n<\/tr>\n<tr>\n<td>\u96f6\u521d\u59cb\u5316\u6216\u672a\u663e\u5f0f\u521d\u59cb\u5316\u7684\u53ef\u5199\u5168\u5c40\u3001\u9759\u6001\u53d8\u91cf<\/td>\n<td>RAM&#xff0c;.bss<\/td>\n<td>\u5426<\/td>\n<td>\u542f\u52a8\u65f6\u6e05\u96f6<\/td>\n<\/tr>\n<tr>\n<td>\u666e\u901a\u5c40\u90e8\u53d8\u91cf\u3001\u53c2\u6570<\/td>\n<td>\u5bc4\u5b58\u5668\u6216\u6808&#xff0c;\u4e5f\u53ef\u80fd\u88ab\u4f18\u5316\u6389<\/td>\n<td>\u5426<\/td>\n<td>\u6309\u58f0\u660e\u3001\u8d4b\u503c\u6216\u8c03\u7528\u8fc7\u7a0b\u5efa\u7acb<\/td>\n<\/tr>\n<tr>\n<td>\u5c40\u90e8\u5b57\u7b26\u6570\u7ec4<\/td>\n<td>\u901a\u5e38\u5728\u6808&#xff0c;\u4e5f\u53ef\u80fd\u88ab\u4f18\u5316<\/td>\n<td>\u5426<\/td>\n<td>\u8fdb\u5165\u76f8\u5e94\u6267\u884c\u8def\u5f84\u65f6\u521d\u59cb\u5316<\/td>\n<\/tr>\n<tr>\n<td>\u52a8\u6001\u5206\u914d\u5bf9\u8c61<\/td>\n<td>\u5806\u6216\u5176\u4ed6\u52a8\u6001\u5185\u5b58\u533a<\/td>\n<td>\u5426<\/td>\n<td>malloc() \u4e0d\u8d1f\u8d23\u6e05\u96f6<\/td>\n<\/tr>\n<tr>\n<td>\u5916\u8bbe\u5bc4\u5b58\u5668<\/td>\n<td>\u5bf9\u5e94\u5916\u8bbe\u786c\u4ef6<\/td>\n<td>\u901a\u5e38\u4e0d\u80fd\u4f5c\u4e3a\u6389\u7535\u4fdd\u5b58\u624b\u6bb5<\/td>\n<td>\u4f9d\u590d\u4f4d\u89c4\u5219\u53ca\u914d\u7f6e\u5199\u5165<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9047\u5230\u4e00\u6bb5 C \u4ee3\u7801\u65f6&#xff0c;\u53ef\u4ee5\u6309\u8fd9\u4e2a\u987a\u5e8f\u5224\u65ad&#xff1a;\u5148\u770b\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u548c\u53ef\u5199\u6027&#xff0c;\u518d\u770b\u7f16\u8bd1\u540e\u7684\u8282\u533a&#xff0c;\u6700\u540e\u7528\u94fe\u63a5\u914d\u7f6e\u548c map \u6587\u4ef6\u786e\u8ba4\u7269\u7406\u4f4d\u7f6e\u3002<\/p>\n<p>\u8fd9\u6bd4\u7b80\u5355\u8bb0\u5fc6\u201c\u7a0b\u5e8f\u653e Flash&#xff0c;\u53d8\u91cf\u653e RAM\u201d\u66f4\u53ef\u9760&#xff0c;\u4e5f\u80fd\u76f4\u63a5\u5e2e\u52a9\u5b9a\u4f4d RAM \u4e0d\u8db3\u3001\u6808\u6ea2\u51fa\u3001DMA \u7f13\u51b2\u533a\u4e0d\u53ef\u8bbf\u95ee&#xff0c;\u4ee5\u53ca\u542f\u52a8\u521d\u59cb\u5316\u5f02\u5e38\u7b49\u5b9e\u9645\u95ee\u9898\u3002<\/p>\n<h3>\u53c2\u8003\u8d44\u6599<\/h3>\n<li>ST RM0090&#xff1a;STM32F4 \u53c2\u8003\u624b\u518c&#xff0c;\u91cd\u70b9\u67e5\u770b Memory and bus architecture\u3001Embedded Flash memory interface\u3002<\/li>\n<li>Keil \u00b5Vision User\u2019s Guide&#xff1a;Target&#xff08;Arm Compiler&#xff09;&#xff0c;\u67e5\u770b ROM\u3001RAM \u533a\u57df\u914d\u7f6e\u3002<\/li>\n<li>C11 \u59d4\u5458\u4f1a\u8349\u6848 N1570&#xff0c;\u91cd\u70b9\u67e5\u770b 6.2.4&#xff08;\u5b58\u50a8\u671f&#xff09;\u30016.4.5&#xff08;\u5b57\u7b26\u4e32\u5b57\u9762\u91cf&#xff09;\u30016.7.9&#xff08;\u521d\u59cb\u5316&#xff09;\u548c 7.22.3&#xff08;\u5185\u5b58\u7ba1\u7406&#xff09;\u3002<\/li>\n<li>Nuvoton FAQ&#xff1a;Keil \u4e2d\u7684\u4ee3\u7801\u4e0e SRAM \u5360\u7528\u7edf\u8ba1\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"<p>RAM\u3001ROM\u3001Flash \u5230\u5e95\u6709\u4ec0\u4e48\u533a\u522b&#xff1f;\u4ece STM32 \u770b\u61c2\u4ee3\u7801\u3001\u53d8\u91cf\u4e0e\u51fd\u6570\u5b58\u5728\u54ea\u91cc<br \/>\n\u5199 STM32 \u7a0b\u5e8f\u65f6&#xff0c;\u6211\u4eec\u5e38\u542c\u5230\u4e24\u53e5\u8bdd&#xff1a;\u201c\u7a0b\u5e8f\u653e\u5728 Flash&#xff0c;\u53d8\u91cf\u653e\u5728 RAM\u3002\u201d<br \/>\n\u8fd9\u53ef\u4ee5\u4f5c\u4e3a\u5165\u95e8\u5370\u8c61&#xff0c;\u5374\u89e3\u91ca\u4e0d\u4e86\u4e0b\u9762\u7684\u95ee\u9898&#xff1a;<br \/>\nFlash \u53ef\u4ee5\u53cd\u590d\u70e7\u5f55&#xff0c;\u4e3a\u4ec0\u4e48\u6709\u4eba\u628a\u5b83\u53eb ROM&#xff1f;int count  10; \u7684\u521d\u503c\u5728\u54ea\u91cc&#xff1f;\u4fee\u6539\u540e\u80fd\u4e0d\u80fd\u6389\u7535\u4fdd\u5b58&amp;#xff<\/p>\n","protected":false},"author":2,"featured_media":120882,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[868,174,217,270],"topic":[],"class_list":["post-120888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-868","tag-c","tag-stm32","tag-270"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>STM32_RAM_ROM_Flash - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/120888.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta 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