\u4e0a\u5c42\u4f9d\u8d56\u4e0b\u5c42\u7684\u63a5\u53e3，\u4e0d\u4f9d\u8d56\u4e0b\u5c42\u7684\u5b9e\u73b0\u3002<\/p>\n<\/li>\n
\u4e0b\u5c42\u4e0d\u77e5\u9053\u4e0a\u5c42\u7684\u5b58\u5728\u3002<\/p>\n<\/li>\n
\u786c\u4ef6\u76f8\u5173\u7684\u4ee3\u7801\u96c6\u4e2d\u5728\u6700\u5e95\u5c42，\u4e0a\u5c42\u4ee3\u7801\u4e0d\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668\u3002<\/p>\n<\/li>\n<\/ul>\n
\u7528\u4e00\u5f20\u56fe\u8868\u793a：<\/p>\n
![](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260925164925-6ab6a61501296.png\")
<\/p>\n
\u5173\u952e\u70b9：\u00a0\u7bad\u5934\u65b9\u5411\u662f\u5355\u5411\u7684，\u4e0a\u5c42\u4f9d\u8d56\u4e0b\u5c42，\u4e0b\u5c42\u4e0d\u77e5\u9053\u4e0a\u5c42\u3002<\/p>\n
\u5e38\u89c1\u7684\u9519\u8bef\u5206\u5c42<\/h4>\n
\u9519\u8bef\u4e00：\u6ca1\u6709 HAL \u5c42，\u9a71\u52a8\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668\u3002<\/p>\n
\/\/ \u9a71\u52a8\u5c42\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668
\nvoid UART_SendByte(uint8_t byte)
\n{
\n while (!(USART1->SR & USART_SR_TXE));
\n USART1->DR = byte;
\n}<\/p>\n
\u6362\u82af\u7247\u540e，USART1\u3001USART_SR_TXE\u3001USART_SR_TXE\u00a0\u8fd9\u4e9b\u90fd\u8981\u6539\u3002\u5982\u679c\u8fd9\u4e2a\u51fd\u6570\u88ab\u4e0a\u5c42\u8c03\u7528\u4e86\u51e0\u767e\u6b21，\u6539\u8d77\u6765\u5c31\u662f\u707e\u96be\u3002<\/p>\n
\u9519\u8bef\u4e8c：HAL \u5c42\u592a\u539a，\u628a\u4e1a\u52a1\u903b\u8f91\u585e\u8fdb\u53bb\u3002<\/p>\n
\/\/ HAL \u5c42\u91cc\u505a\u4e86\u4e1a\u52a1\u903b\u8f91
\nvoid HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
\n{
\n \/\/ \u89e3\u6790 Modbus \u534f\u8bae
\n if (ParseModbusByte(huart->Instance->DR)) {
\n HandleModbusCommand();
\n }
\n}<\/p>\n
HAL \u56de\u8c03\u51fd\u6570\u5e94\u8be5\u662f\u7eaf\u7cb9\u7684\u786c\u4ef6\u4e8b\u4ef6\u901a\u77e5，\u4e0d\u5e94\u8be5\u5305\u542b\u534f\u8bae\u89e3\u6790\u3002\u6362\u82af\u7247\u65f6，\u8fd9\u4e2a\u56de\u8c03\u51fd\u6570\u53ef\u80fd\u88ab\u91cd\u5199，\u534f\u8bae\u903b\u8f91\u5c31\u4e22\u4e86\u3002<\/p>\n
\u9519\u8bef\u4e09：\u9a71\u52a8\u5c42\u76f4\u63a5\u8c03\u7528\u5e94\u7528\u5c42\u51fd\u6570\u3002<\/p>\n
\/\/ \u9a71\u52a8\u5c42\u53cd\u5411\u4f9d\u8d56\u5e94\u7528\u5c42
\nvoid Sensor_ReadComplete(void)
\n{
\n \/\/ \u9a71\u52a8\u5c42\u8c03\u7528\u5e94\u7528\u5c42\u7684\u51fd\u6570
\n App_OnSensorDataReady();
\n}<\/p>\n
\u8fd9\u8fdd\u53cd\u4e86\u4f9d\u8d56\u65b9\u5411\u3002\u9a71\u52a8\u5c42\u5e94\u8be5\u53ea\u63d0\u4f9b\u6570\u636e，\u4e0d\u5173\u5fc3\u8c01\u7528\u3001\u600e\u4e48\u7528\u3002<\/p>\n
\u4e8c\u3001HAL \u5c42：\u8be5\u591a\u8584<\/h3>\nHAL \u5c42\u7684\u804c\u8d23\u8fb9\u754c<\/h4>\n
HAL \u5c42\u662f\u552f\u4e00\u5141\u8bb8\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668\u7684\u5c42\u3002\u5b83\u7684\u804c\u8d23\u662f：<\/p>\n
\u5c4f\u853d\u82af\u7247\u5dee\u5f02\u3002\u00a0\u4e0a\u5c42\u8c03\u7528\u00a0HAL_UART_Send()，\u4e0d\u5173\u5fc3\u662f STM32 \u8fd8\u662f NXP，\u4e0d\u5173\u5fc3\u662f UART1 \u8fd8\u662f UART2\u3002<\/p>\n<\/li>\n
\u63d0\u4f9b\u6700\u5c0f\u53ef\u7528\u7684\u64cd\u4f5c\u63a5\u53e3\u3002\u00a0\u521d\u59cb\u5316\u3001\u53d1\u9001\u3001\u63a5\u6536\u3001\u63a7\u5236\u3002<\/p>\n<\/li>\n
\u4e0d\u5305\u542b\u4e1a\u52a1\u903b\u8f91\u3002\u00a0\u4e0d\u505a\u534f\u8bae\u89e3\u6790\u3001\u4e0d\u505a\u6570\u636e\u6362\u7b97\u3001\u4e0d\u505a\u72b6\u6001\u7ba1\u7406\u3002<\/p>\n<\/li>\n
\u5224\u65ad HAL \u5c42\u662f\u5426\u5408\u7406\u7684\u4e00\u4e2a\u6807\u51c6：\u6362\u4e00\u9897\u82af\u7247，\u9700\u8981\u6539\u54ea\u4e9b\u6587\u4ef6？\u00a0\u5982\u679c\u53ea\u6539 HAL \u5c42\u7684\u6587\u4ef6，\u8bf4\u660e\u5206\u5c42\u5408\u7406\u3002\u5982\u679c\u9a71\u52a8\u5c42\u3001\u4e2d\u95f4\u4ef6\u5c42\u3001\u5e94\u7528\u5c42\u90fd\u8981\u6539，\u8bf4\u660e HAL \u5c42\u592a\u8584\u6216\u8005\u6ca1\u5206\u597d\u3002<\/p>\n
HAL \u63a5\u53e3\u7684\u8bbe\u8ba1\u539f\u5219<\/h4>\n
\u539f\u5219\u4e00：\u63a5\u53e3\u8981\u7a33\u5b9a\u3002<\/p>\n
HAL \u63a5\u53e3\u4e00\u65e6\u5b9a\u4e49，\u5c31\u8981\u5c3d\u91cf\u7a33\u5b9a\u3002\u56e0\u4e3a\u4e0a\u5c42\u4ee3\u7801\u4f9d\u8d56\u5b83\u3002\u5982\u679c\u63a5\u53e3\u9891\u7e41\u53d8\u5316，\u4e0a\u5c42\u5c31\u8981\u8ddf\u7740\u6539，\u5206\u5c42\u5c31\u5931\u53bb\u4e86\u610f\u4e49\u3002<\/p>\n
\u539f\u5219\u4e8c：\u63a5\u53e3\u8981\u6700\u5c0f\u5316\u3002<\/p>\n
\u53ea\u66b4\u9732\u4e0a\u5c42\u9700\u8981\u7684\u4e1c\u897f\u3002\u4e0d\u8981\u628a\u6240\u6709\u5bc4\u5b58\u5668\u64cd\u4f5c\u90fd\u5c01\u88c5\u6210 HAL \u51fd\u6570\u3002\u6bd4\u5982：<\/p>\n
\/\/ \u597d\u7684 HAL \u63a5\u53e3：\u6700\u5c0f\u5316
\ntypedef struct {
\n uint32_t baudrate;
\n uint8_t data_bits;
\n uint8_t stop_bits;
\n uint8_t parity;
\n} UART_Config_t;<\/p>\n
int HAL_UART_Init(uint8_t port, const UART_Config_t *config);
\nint HAL_UART_Send(uint8_t port, const uint8_t *data, uint32_t len);
\nint HAL_UART_Receive(uint8_t port, uint8_t *data, uint32_t len);
\nint HAL_UART_SendAsync(uint8_t port, const uint8_t *data, uint32_t len,
\n void (*callback)(int result));<\/p>\n
\/\/ \u4e0d\u597d\u7684 HAL \u63a5\u53e3：\u66b4\u9732\u592a\u591a\u7ec6\u8282
\nvoid HAL_UART_SetBaudrate(USART_TypeDef *instance, uint32_t baud);
\nvoid HAL_UART_EnableTX(USART_TypeDef *instance);
\nvoid HAL_UART_EnableRX(USART_TypeDef *instance);
\nvoid HAL_UART_SetWordLength(USART_TypeDef *instance, uint8_t bits);
\n\/\/ … \u51e0\u5341\u4e2a\u51fd\u6570，\u4e0a\u5c42\u8981\u81ea\u5df1\u7ec4\u5408<\/p>\n
\u539f\u5219\u4e09：\u7528\u53e5\u67c4（Handle）\u800c\u4e0d\u662f\u5168\u5c40\u53d8\u91cf\u3002<\/p>\n
\/\/ \u597d\u7684\u505a\u6cd5：\u7528\u53e5\u67c4
\ntypedef struct UART_Handle UART_Handle_t;<\/p>\n
UART_Handle_t *HAL_UART_Open(uint8_t port, const UART_Config_t *config);
\nint HAL_UART_Send(UART_Handle_t *handle, const uint8_t *data, uint32_t len);
\nvoid HAL_UART_Close(UART_Handle_t *handle);<\/p>\n
\/\/ \u4e0d\u597d\u7684\u505a\u6cd5：\u7528\u5168\u5c40\u53d8\u91cf
\nextern UART_HandleTypeDef huart1;
\nextern UART_HandleTypeDef huart2;<\/p>\n
\u53e5\u67c4\u7684\u597d\u5904\u662f：\u652f\u6301\u591a\u5b9e\u4f8b，\u4fbf\u4e8e\u6d4b\u8bd5（\u53ef\u4ee5\u4f20\u5165 mock \u53e5\u67c4），\u907f\u514d\u5168\u5c40\u53d8\u91cf\u5e26\u6765\u7684\u8026\u5408\u3002<\/p>\n
HAL \u5c42\u7684\u5b9e\u73b0\u793a\u4f8b<\/h4>\n
\u4ee5 UART \u4e3a\u4f8b，HAL \u5c42\u7684\u5b9e\u73b0：<\/p>\n
\/\/ hal_uart.h \u2014\u2014 \u63a5\u53e3\u5b9a\u4e49
\n#ifndef HAL_UART_H
\n#define HAL_UART_H<\/p>\n
#include <stdint.h><\/p>\n
typedef enum {
\n HAL_UART_PORT_1 = 0,
\n HAL_UART_PORT_2,
\n HAL_UART_PORT_MAX
\n} HAL_UART_Port_t;<\/p>\n
typedef struct {
\n uint32_t baudrate;
\n uint8_t data_bits; \/\/ 7, 8, 9
\n uint8_t stop_bits; \/\/ 1, 2
\n uint8_t parity; \/\/ 0=none, 1=odd, 2=even
\n} HAL_UART_Config_t;<\/p>\n
typedef void (*HAL_UART_RxCallback_t)(uint8_t byte, void *user_data);
\ntypedef void (*HAL_UART_TxCompleteCallback_t)(int result, void *user_data);<\/p>\n
int HAL_UART_Init(HAL_UART_Port_t port, const HAL_UART_Config_t *config);
\nint HAL_UART_RegisterRxCallback(HAL_UART_Port_t port,
\n HAL_UART_RxCallback_t callback,
\n void *user_data);
\nint HAL_UART_Send(HAL_UART_Port_t port, const uint8_t *data, uint32_t len);
\nint HAL_UART_SendAsync(HAL_UART_Port_t port, const uint8_t *data, uint32_t len,
\n HAL_UART_TxCompleteCallback_t callback, void *user_data);
\nint HAL_UART_DeInit(HAL_UART_Port_t port);<\/p>\n
#endif<\/p>\n
\/\/ hal_uart_stm32.c \u2014\u2014 STM32 \u5b9e\u73b0
\n#include "hal_uart.h"
\n#include "stm32g4xx_hal.h"<\/p>\n
static UART_HandleTypeDef huarts[HAL_UART_PORT_MAX];
\nstatic HAL_UART_RxCallback_t rx_callbacks[HAL_UART_PORT_MAX];
\nstatic void *rx_user_data[HAL_UART_PORT_MAX];
\nstatic uint8_t rx_byte[HAL_UART_PORT_MAX];<\/p>\n
int HAL_UART_Init(HAL_UART_Port_t port, const HAL_UART_Config_t *config)
\n{
\n if (port >= HAL_UART_PORT_MAX) return -1;<\/p>\n
huarts[port].Instance = (port == HAL_UART_PORT_1) ? USART1 : USART2;
\n huarts[port].Init.BaudRate = config->baudrate;
\n huarts[port].Init.WordLength = (config->data_bits == 8) ? UART_WORDLENGTH_8B : UART_WORDLENGTH_9B;
\n huarts[port].Init.StopBits = (config->stop_bits == 1) ? UART_STOPBITS_1 : UART_STOPBITS_2;
\n huarts[port].Init.Parity = (config->parity == 0) ? UART_PARITY_NONE :
\n (config->parity == 1) ? UART_PARITY_ODD : UART_PARITY_EVEN;
\n huarts[port].Init.Mode = UART_MODE_TX_RX;
\n huarts[port].Init.HwFlowCtl = UART_HWCONTROL_NONE;
\n huarts[port].Init.OverSampling = UART_OVERSAMPLING_16;<\/p>\n
if (HAL_UART_Init(&huarts[port]) != HAL_OK) {
\n return -1;
\n }<\/p>\n
\/\/ \u542f\u52a8\u63a5\u6536\u4e2d\u65ad
\n HAL_UART_Receive_IT(&huarts[port], &rx_byte[port], 1);<\/p>\n
return 0;
\n}<\/p>\n
\/\/ HAL \u56de\u8c03：\u53ea\u505a\u6570\u636e\u4f20\u9012，\u4e0d\u505a\u4e1a\u52a1\u5904\u7406
\nvoid HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
\n{
\n for (int i = 0; i < HAL_UART_PORT_MAX; i++) {
\n if (huart->Instance == huarts[i].Instance) {
\n if (rx_callbacks[i]) {
\n rx_callbacks[i](rx_byte[i], rx_user_data[i]);
\n }
\n HAL_UART_Receive_IT(&huarts[i], &rx_byte[i], 1);
\n break;
\n }
\n }
\n}<\/p>\n
\/\/ hal_uart_mock.c \u2014\u2014 \u7528\u4e8e\u5355\u5143\u6d4b\u8bd5\u7684 mock \u5b9e\u73b0
\nint HAL_UART_Init(HAL_UART_Port_t port, const HAL_UART_Config_t *config)
\n{
\n \/\/ \u8bb0\u5f55\u8c03\u7528，\u8fd4\u56de\u6210\u529f
\n mock_record_call("HAL_UART_Init", port, config);
\n return 0;
\n}<\/p>\n
int HAL_UART_Send(HAL_UART_Port_t port, const uint8_t *data, uint32_t len)
\n{
\n mock_record_send(port, data, len);
\n return 0;
\n}<\/p>\n
\u8fd9\u4e2a\u8bbe\u8ba1\u7684\u4ef7\u503c：\u00a0\u5e94\u7528\u5c42\u548c\u9a71\u52a8\u5c42\u53ea\u4f9d\u8d56\u00a0hal_uart.h\u3002\u6362\u82af\u7247\u65f6，\u53ea\u9700\u8981\u6362\u00a0hal_uart_stm32.c\u00a0\u4e3a\u00a0hal_uart_nxp.c，\u4e0a\u5c42\u4ee3\u7801\u4e00\u884c\u4e0d\u6539\u3002\u5355\u5143\u6d4b\u8bd5\u65f6，\u7528\u00a0hal_uart_mock.c\u00a0\u66ff\u6362，\u4e0d\u9700\u8981\u771f\u5b9e\u786c\u4ef6\u3002<\/p>\n
HAL \u5c42\u8be5\u591a\u8584：\u4e00\u4e2a\u5224\u65ad\u6807\u51c6<\/h4>\n
HAL \u5c42\u5e94\u8be5\u8584\u5230"\u53ea\u505a\u786c\u4ef6\u64cd\u4f5c，\u4e0d\u505a\u4efb\u4f55\u51b3\u7b56"\u3002<\/p>\n
\u5177\u4f53\u6765\u8bf4：<\/p>\n
![](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260925164925-6ab6a61544873.png\")
<\/p>\n
\u4e00\u4e2a\u7b80\u5355\u7684\u6d4b\u8bd5：\u00a0\u5982\u679c\u628a HAL \u5c42\u7684\u4ee3\u7801\u6253\u5370\u51fa\u6765\u7ed9\u4e00\u4e2a\u4e0d\u61c2\u4e1a\u52a1\u7684\u4eba\u770b，\u4ed6\u5e94\u8be5\u53ea\u80fd\u770b\u5230"\u786c\u4ef6\u64cd\u4f5c"，\u770b\u4e0d\u5230"\u4e1a\u52a1\u903b\u8f91"\u3002<\/p>\n
\u4e09\u3001\u9a71\u52a8\u5c42：\u8bbe\u5907\u9a71\u52a8\u600e\u4e48\u505a<\/h3>\n\u9a71\u52a8\u5c42\u7684\u804c\u8d23<\/h4>\n
\u9a71\u52a8\u5c42\u5728 HAL \u5c42\u4e4b\u4e0a，\u8d1f\u8d23\u628a\u4e00\u4e2a\u5177\u4f53\u7684\u8bbe\u5907（\u4f20\u611f\u5668\u3001Flash\u3001\u5c4f\u5e55）\u5c01\u88c5\u6210\u53ef\u7528\u7684\u63a5\u53e3\u3002\u5b83\u77e5\u9053\u8bbe\u5907\u7684\u7279\u6027（\u6bd4\u5982\u67d0\u4e2a\u4f20\u611f\u5668\u7684\u5bc4\u5b58\u5668\u5730\u5740\u3001\u67d0\u4e2a Flash \u7684\u6247\u533a\u5927\u5c0f），\u4f46\u4e0d\u6d89\u53ca\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n
\u9a71\u52a8\u5c42\u7684\u6838\u5fc3\u4efb\u52a1\u662f：<\/p>\n
\u8bbe\u5907\u521d\u59cb\u5316\u5e8f\u5217\u3002\u00a0\u6bd4\u5982\u67d0\u4e2a\u4f20\u611f\u5668\u9700\u8981\u5148\u5199\u914d\u7f6e\u5bc4\u5b58\u5668，\u518d\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4，\u518d\u8bfb ID \u786e\u8ba4\u3002<\/p>\n<\/li>\n
\u6570\u636e\u8bfb\u5199\u3002\u00a0\u628a\u8bbe\u5907\u7684\u539f\u59cb\u6570\u636e\u8f6c\u6362\u6210\u6709\u610f\u4e49\u7684\u7269\u7406\u91cf（\u6bd4\u5982 ADC \u503c\u8f6c\u6e29\u5ea6）\u3002<\/p>\n<\/li>\n
\u9519\u8bef\u5904\u7406\u3002\u00a0\u5904\u7406\u8bbe\u5907\u7279\u6709\u7684\u9519\u8bef（\u901a\u4fe1\u8d85\u65f6\u3001\u6821\u9a8c\u5931\u8d25）\u3002<\/p>\n<\/li>\n
\u72b6\u6001\u7ba1\u7406\u3002\u00a0\u8ddf\u8e2a\u8bbe\u5907\u7684\u72b6\u6001（\u5df2\u521d\u59cb\u5316\u3001\u5fd9\u3001\u9519\u8bef）\u3002<\/p>\n<\/li>\n
\u9a71\u52a8\u5c42\u63a5\u53e3\u8bbe\u8ba1\u793a\u4f8b<\/h4>\n
\u4ee5 SPI Flash \u9a71\u52a8\u4e3a\u4f8b：<\/p>\n
\/\/ drv_flash.h \u2014\u2014 \u9a71\u52a8\u63a5\u53e3
\n#ifndef DRV_FLASH_H
\n#define DRV_FLASH_H<\/p>\n
#include <stdint.h>
\n#include <stdbool.h><\/p>\n
typedef struct DrvFlash DrvFlash_t;<\/p>\n
typedef struct {
\n uint32_t sector_size; \/\/ \u6247\u533a\u5927\u5c0f
\n uint32_t total_size; \/\/ \u603b\u5bb9\u91cf
\n uint32_t page_size; \/\/ \u9875\u5927\u5c0f
\n} DrvFlash_Info_t;<\/p>\n
\/\/ \u521b\u5efa\/\u9500\u6bc1
\nDrvFlash_t *DrvFlash_Create(void);
\nvoid DrvFlash_Destroy(DrvFlash_t *flash);<\/p>\n
\/\/ \u521d\u59cb\u5316
\nint DrvFlash_Init(DrvFlash_t *flash);<\/p>\n
\/\/ \u8bfb\u5199
\nint DrvFlash_Read(DrvFlash_t *flash, uint32_t addr, uint8_t *buf, uint32_t len);
\nint DrvFlash_Write(DrvFlash_t *flash, uint32_t addr, const uint8_t *buf, uint32_t len);
\nint DrvFlash_EraseSector(DrvFlash_t *flash, uint32_t addr);<\/p>\n
\/\/ \u4fe1\u606f
\nint DrvFlash_GetInfo(DrvFlash_t *flash, DrvFlash_Info_t *info);<\/p>\n
\/\/ \u72b6\u6001
\nbool DrvFlash_IsReady(DrvFlash_t *flash);<\/p>\n
#endif<\/p>\n
\/\/ drv_flash_w25qxx.c \u2014\u2014 W25Qxx \u7cfb\u5217 Flash \u9a71\u52a8\u5b9e\u73b0
\n#include "drv_flash.h"
\n#include "hal_spi.h"
\n#include "hal_gpio.h"<\/p>\n
#define W25Q_CMD_READ_ID 0x9F
\n#define W25Q_CMD_READ_DATA 0x03
\n#define W25Q_CMD_PAGE_PROGRAM 0x02
\n#define W25Q_CMD_SECTOR_ERASE 0x20
\n#define W25Q_CMD_READ_STATUS 0x05
\n#define W25Q_CMD_WRITE_ENABLE 0x06<\/p>\n
struct DrvFlash {
\n HAL_SPI_Handle_t *spi;
\n HAL_GPIO_Pin_t cs_pin;
\n DrvFlash_Info_t info;
\n bool initialized;
\n};<\/p>\n
\/\/ \u79c1\u6709\u51fd\u6570：\u53d1\u9001\u547d\u4ee4
\nstatic int flash_send_cmd(DrvFlash_t *flash, uint8_t cmd)
\n{
\n HAL_GPIO_Write(flash->cs_pin, 0);
\n int ret = HAL_SPI_Transfer(flash->spi, &cmd, NULL, 1);
\n HAL_GPIO_Write(flash->cs_pin, 1);
\n return ret;
\n}<\/p>\n
\/\/ \u79c1\u6709\u51fd\u6570：\u7b49\u5f85\u5fd9\u72b6\u6001\u7ed3\u675f
\nstatic int flash_wait_ready(DrvFlash_t *flash, uint32_t timeout_ms)
\n{
\n uint32_t start = HAL_GetTick();
\n uint8_t status;<\/p>\n
do {
\n HAL_GPIO_Write(flash->cs_pin, 0);
\n uint8_t cmd = W25Q_CMD_READ_STATUS;
\n HAL_SPI_Transfer(flash->spi, &cmd, NULL, 1);
\n HAL_SPI_Transfer(flash->spi, NULL, &status, 1);
\n HAL_GPIO_Write(flash->cs_pin, 1);<\/p>\n
if (!(status & 0x01)) return 0; \/\/ \u4e0d\u5fd9\u4e86<\/p>\n
if (HAL_GetTick() – start > timeout_ms) {
\n return -2; \/\/ \u8d85\u65f6
\n }
\n } while (1);
\n}<\/p>\n
int DrvFlash_Init(DrvFlash_t *flash)
\n{
\n \/\/ \u8bfb\u53d6 ID，\u786e\u8ba4\u8bbe\u5907\u5b58\u5728
\n HAL_GPIO_Write(flash->cs_pin, 0);
\n uint8_t cmd = W25Q_CMD_READ_ID;
\n uint8_t id[3];
\n HAL_SPI_Transfer(flash->spi, &cmd, NULL, 1);
\n HAL_SPI_Transfer(flash->spi, NULL, id, 3);
\n HAL_GPIO_Write(flash->cs_pin, 1);<\/p>\n
if (id[0] == 0x00 || id[0] == 0xFF) {
\n return -1; \/\/ \u8bbe\u5907\u4e0d\u5b58\u5728
\n }<\/p>\n
\/\/ \u6839\u636e ID \u586b\u5145 info
\n flash->info.sector_size = 4096;
\n flash->info.page_size = 256;
\n flash->info.total_size = 8 * 1024 * 1024; \/\/ 8MB<\/p>\n
flash->initialized = true;
\n return 0;
\n}<\/p>\n
int DrvFlash_Write(DrvFlash_t *flash, uint32_t addr, const uint8_t *buf, uint32_t len)
\n{
\n if (!flash->initialized) return -1;<\/p>\n
\/\/ \u5199\u4f7f\u80fd
\n flash_send_cmd(flash, W25Q_CMD_WRITE_ENABLE);<\/p>\n
\/\/ \u9875\u7f16\u7a0b
\n HAL_GPIO_Write(flash->cs_pin, 0);
\n uint8_t cmd = W25Q_CMD_PAGE_PROGRAM;
\n HAL_SPI_Transfer(flash->spi, &cmd, NULL, 1);
\n uint8_t addr_bytes[3] = {addr >> 16, addr >> 8, addr};
\n HAL_SPI_Transfer(flash->spi, addr_bytes, NULL, 3);
\n HAL_SPI_Transfer(flash->spi, (uint8_t *)buf, NULL, len);
\n HAL_GPIO_Write(flash->cs_pin, 1);<\/p>\n
\/\/ \u7b49\u5f85\u5199\u5b8c
\n return flash_wait_ready(flash, 1000);
\n}<\/p>\n
\u9a71\u52a8\u5c42\u7684\u5173\u952e\u70b9：<\/p>\n
- \n
- \n
\u53ea\u4f9d\u8d56 HAL \u63a5\u53e3（hal_spi.h\u3001hal_gpio.h），\u4e0d\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668<\/p>\n<\/li>\n
- \n
\u5c01\u88c5\u4e86\u8bbe\u5907\u7684\u7279\u6027（W25Q \u7684\u547d\u4ee4\u96c6\u3001\u72b6\u6001\u5bc4\u5b58\u5668）<\/p>\n<\/li>\n
- \n
\u63d0\u4f9b\u6e05\u6670\u7684\u9519\u8bef\u7801<\/p>\n<\/li>\n
- \n
\u4e0d\u6d89\u53ca\u4e1a\u52a1\u903b\u8f91（\u4e0d\u5173\u5fc3\u5199\u5165\u7684\u662f\u4ec0\u4e48\u6570\u636e）<\/p>\n<\/li>\n<\/ul>\n
\u9a71\u52a8\u5c42\u5982\u4f55\u505a\u5230"\u53ef\u66ff\u6362"<\/h4>\n
\u4e00\u4e2a\u5e38\u89c1\u7684\u9700\u6c42\u662f：\u4ea7\u54c1\u6709\u591a\u4e2a\u578b\u53f7，\u7528\u7684 Flash \u578b\u53f7\u4e0d\u540c（W25Q64\u3001W25Q128\u3001GD25Q64）\u3002\u5982\u679c\u9a71\u52a8\u5c42\u5199\u6b7b\u4e86 W25Q，\u6362\u578b\u53f7\u5c31\u8981\u6539\u4ee3\u7801\u3002<\/p>\n
\u89e3\u51b3\u65b9\u6848：\u9a71\u52a8\u63a5\u53e3 + \u5177\u4f53\u5b9e\u73b0\u5206\u79bb\u3002<\/p>\n
\/\/ drv_flash.h \u2014\u2014 \u901a\u7528\u63a5\u53e3
\ntypedef struct DrvFlash DrvFlash_t;<\/p>\n\/\/ \u9a71\u52a8\u64cd\u4f5c\u8868（\u865a\u51fd\u6570\u8868）
\ntypedef struct {
\n int (*init)(DrvFlash_t *flash);
\n int (*read)(DrvFlash_t *flash, uint32_t addr, uint8_t *buf, uint32_t len);
\n int (*write)(DrvFlash_t *flash, uint32_t addr, const uint8_t *buf, uint32_t len);
\n int (*erase_sector)(DrvFlash_t *flash, uint32_t addr);
\n} DrvFlash_Ops_t;<\/p>\nstruct DrvFlash {
\n const DrvFlash_Ops_t *ops;
\n void *priv; \/\/ \u5177\u4f53\u9a71\u52a8\u7684\u79c1\u6709\u6570\u636e
\n};<\/p>\n\/\/ \u901a\u7528 API
\nint DrvFlash_Init(DrvFlash_t *flash) {
\n return flash->ops->init(flash);
\n}
\nint DrvFlash_Read(DrvFlash_t *flash, uint32_t addr, uint8_t *buf, uint32_t len) {
\n return flash->ops->read(flash, addr, buf, len);
\n}<\/p>\n\/\/ drv_flash_w25qxx.c \u2014\u2014 W25Q \u5b9e\u73b0
\nstatic const DrvFlash_Ops_t w25q_ops = {
\n .init = w25q_init,
\n .read = w25q_read,
\n .write = w25q_write,
\n .erase_sector = w25q_erase_sector,
\n};<\/p>\nDrvFlash_t *DrvFlash_CreateW25Q(HAL_SPI_Handle_t *spi, HAL_GPIO_Pin_t cs)
\n{
\n DrvFlash_t *flash = malloc(sizeof(DrvFlash_t));
\n flash->ops = &w25q_ops;
\n flash->priv = malloc(sizeof(W25Q_Priv_t));
\n \/\/ \u521d\u59cb\u5316 priv
\n return flash;
\n}<\/p>\n\u5e94\u7528\u5c42\u53ea\u4f9d\u8d56\u00a0DrvFlash_t\u00a0\u548c\u901a\u7528 API，\u4e0d\u5173\u5fc3\u5177\u4f53\u662f\u54ea\u4e2a\u578b\u53f7\u3002\u00a0\u5728\u521d\u59cb\u5316\u65f6\u6839\u636e\u786c\u4ef6\u7248\u672c\u9009\u62e9\u4e0d\u540c\u7684\u521b\u5efa\u51fd\u6570：<\/p>\n
DrvFlash_t *flash;
\nif (hardware_version == HW_V1) {
\n flash = DrvFlash_CreateW25Q(spi, cs);
\n} else {
\n flash = DrvFlash_CreateGD25Q(spi, cs);
\n}
\nDrvFlash_Init(flash);<\/p>\n\u56db\u3001\u4e2d\u95f4\u4ef6\u5c42：\u901a\u7528\u670d\u52a1\u7684\u590d\u7528<\/h3>\n
\u4e2d\u95f4\u4ef6\u5c42\u7684\u5b9a\u4f4d<\/h4>\n
\u4e2d\u95f4\u4ef6\u5c42\u662f\u8de8\u9879\u76ee\u590d\u7528\u7684\u901a\u7528\u670d\u52a1\u3002\u5b83\u4eec\u4e0d\u4f9d\u8d56\u5177\u4f53\u786c\u4ef6，\u4e5f\u4e0d\u4f9d\u8d56\u5177\u4f53\u4e1a\u52a1\u3002\u5178\u578b\u7684\u4e2d\u95f4\u4ef6\u5305\u62ec：<\/p>\n
- \n
- \n
\u73af\u5f62\u7f13\u51b2\u533a（Ring Buffer）<\/p>\n<\/li>\n
- \n
\u534f\u8bae\u89e3\u6790\u5668（Modbus\u3001JSON\u3001\u81ea\u5b9a\u4e49\u534f\u8bae）<\/p>\n<\/li>\n
- \n
\u65e5\u5fd7\u7cfb\u7edf<\/p>\n<\/li>\n
- \n
\u6587\u4ef6\u7cfb\u7edf（FatFS\u3001LittleFS）<\/p>\n<\/li>\n
- \n
\u72b6\u6001\u673a\u6846\u67b6<\/p>\n<\/li>\n
- \n
\u4e8b\u4ef6\u603b\u7ebf<\/p>\n<\/li>\n<\/ul>\n
\u4e2d\u95f4\u4ef6\u5c42\u7684\u7279\u70b9：<\/p>\n
- \n
\u4e0e\u786c\u4ef6\u65e0\u5173\u3002\u00a0\u4e0d\u5305\u542b\u4efb\u4f55\u5bc4\u5b58\u5668\u64cd\u4f5c\u3002<\/p>\n<\/li>\n
- \n
\u4e0e\u4e1a\u52a1\u65e0\u5173\u3002\u00a0\u4e0d\u5305\u542b\u5177\u4f53\u7684\u4e1a\u52a1\u903b\u8f91\u3002<\/p>\n<\/li>\n
- \n
\u53ef\u72ec\u7acb\u6d4b\u8bd5\u3002\u00a0\u53ef\u4ee5\u5728 PC \u4e0a\u7f16\u8bd1\u8fd0\u884c，\u4e0d\u9700\u8981 MCU\u3002<\/p>\n<\/li>\n
- \n
\u63a5\u53e3\u7a33\u5b9a\u3002\u00a0\u4e00\u65e6\u5b9a\u4e49，\u5f88\u5c11\u53d8\u5316\u3002<\/p>\n<\/li>\n
\u4e2d\u95f4\u4ef6\u5c42\u7684\u793a\u4f8b：\u73af\u5f62\u7f13\u51b2\u533a<\/h4>\n
\/\/ ring_buffer.h \u2014\u2014 \u4e2d\u95f4\u4ef6\u5c42
\n#ifndef RING_BUFFER_H
\n#define RING_BUFFER_H<\/p>\n#include <stdint.h>
\n#include <stdbool.h><\/p>\ntypedef struct {
\n uint8_t *buf;
\n uint32_t size;
\n volatile uint32_t head; \/\/ \u5199\u6307\u9488
\n volatile uint32_t tail; \/\/ \u8bfb\u6307\u9488
\n} RingBuffer_t;<\/p>\nvoid RingBuffer_Init(RingBuffer_t *rb, uint8_t *buf, uint32_t size);
\nbool RingBuffer_Put(RingBuffer_t *rb, uint8_t byte);
\nbool RingBuffer_Get(RingBuffer_t *rb, uint8_t *byte);
\nuint32_t RingBuffer_Count(RingBuffer_t *rb);
\nvoid RingBuffer_Flush(RingBuffer_t *rb);<\/p>\n#endif<\/p>\n
\/\/ ring_buffer.c
\n#include "ring_buffer.h"<\/p>\nvoid RingBuffer_Init(RingBuffer_t *rb, uint8_t *buf, uint32_t size)
\n{
\n rb->buf = buf;
\n rb->size = size;
\n rb->head = 0;
\n rb->tail = 0;
\n}<\/p>\n\/\/ \u5355\u751f\u4ea7\u8005\u8c03\u7528（ISR \u6216\u5355\u4e2a\u4efb\u52a1）
\nbool RingBuffer_Put(RingBuffer_t *rb, uint8_t byte)
\n{
\n uint32_t next_head = (rb->head + 1) % rb->size;
\n if (next_head == rb->tail) {
\n return false; \/\/ \u6ee1\u4e86
\n }
\n rb->buf[rb->head] = byte;
\n rb->head = next_head;
\n return true;
\n}<\/p>\n\/\/ \u5355\u6d88\u8d39\u8005\u8c03\u7528（\u5355\u4e2a\u4efb\u52a1）
\nbool RingBuffer_Get(RingBuffer_t *rb, uint8_t *byte)
\n{
\n if (rb->head == rb->tail) {
\n return false; \/\/ \u7a7a\u4e86
\n }
\n *byte = rb->buf[rb->tail];
\n rb->tail = (rb->tail + 1) % rb->size;
\n return true;
\n}<\/p>\n\u8fd9\u4e2a\u73af\u5f62\u7f13\u51b2\u533a\u53ef\u4ee5\u5728 PC \u4e0a\u5355\u5143\u6d4b\u8bd5：<\/p>\n
\/\/ test_ring_buffer.c
\nvoid test_ring_buffer_basic(void)
\n{
\n uint8_t buf[10];
\n RingBuffer_t rb;
\n RingBuffer_Init(&rb, buf, 10);<\/p>\n\/\/ \u5199\u5165 5 \u4e2a\u5b57\u8282
\n for (int i = 0; i < 5; i++) {
\n assert(RingBuffer_Put(&rb, i) == true);
\n }
\n assert(RingBuffer_Count(&rb) == 5);<\/p>\n\/\/ \u8bfb\u53d6 5 \u4e2a\u5b57\u8282
\n for (int i = 0; i < 5; i++) {
\n uint8_t byte;
\n assert(RingBuffer_Get(&rb, &byte) == true);
\n assert(byte == i);
\n }
\n assert(RingBuffer_Count(&rb) == 0);
\n}<\/p>\n\u4e2d\u95f4\u4ef6\u5c42\u7684\u4ef7\u503c：\u00a0\u4e00\u6b21\u7f16\u5199，\u591a\u4e2a\u9879\u76ee\u590d\u7528\u3002\u4e00\u6b21\u6d4b\u8bd5，\u6240\u6709\u9879\u76ee\u53d7\u76ca\u3002<\/p>\n
\u4e94\u3001\u5e94\u7528\u5c42：\u4e1a\u52a1\u903b\u8f91\u7684\u5f52\u5c5e<\/h3>\n
\u5e94\u7528\u5c42\u8be5\u505a\u4ec0\u4e48<\/h4>\n
\u5e94\u7528\u5c42\u662f\u4e1a\u52a1\u903b\u8f91\u7684\u5f52\u5c5e\u5730\u3002\u5b83\u77e5\u9053"\u8981\u505a\u4ec0\u4e48"，\u4e0d\u5173\u5fc3"\u600e\u4e48\u505a"\u3002\u6bd4\u5982：<\/p>\n
- \n
- \n
\u6570\u636e\u91c7\u96c6\u6d41\u7a0b：\u5148\u8bfb\u4f20\u611f\u5668，\u518d\u6ee4\u6ce2，\u518d\u5224\u65ad\u9608\u503c，\u518d\u4e0a\u62a5<\/p>\n<\/li>\n
- \n
\u534f\u8bae\u5904\u7406：\u6536\u5230 Modbus \u8bf7\u6c42，\u89e3\u6790，\u6267\u884c，\u6784\u9020\u54cd\u5e94<\/p>\n<\/li>\n
- \n
\u72b6\u6001\u673a：\u8bbe\u5907\u7684\u72b6\u6001\u8f6c\u6362\u903b\u8f91<\/p>\n<\/li>\n
- \n
\u4efb\u52a1\u8c03\u5ea6：\u521b\u5efa\u54ea\u4e9b\u4efb\u52a1，\u4f18\u5148\u7ea7\u600e\u4e48\u5b9a<\/p>\n<\/li>\n<\/ul>\n
\u5e94\u7528\u5c42\u4e0d\u76f4\u63a5\u64cd\u4f5c\u786c\u4ef6，\u4e5f\u4e0d\u76f4\u63a5\u8c03\u7528 HAL\u3002\u00a0\u5b83\u901a\u8fc7\u9a71\u52a8\u5c42\u7684\u63a5\u53e3\u8bbf\u95ee\u8bbe\u5907，\u901a\u8fc7\u4e2d\u95f4\u4ef6\u5c42\u63d0\u4f9b\u7684\u670d\u52a1\u5904\u7406\u6570\u636e\u3002<\/p>\n
\u5e94\u7528\u5c42\u4e0e\u9a71\u52a8\u5c42\u7684\u4ea4\u4e92<\/h4>\n
\u5e94\u7528\u5c42\u901a\u8fc7\u9a71\u52a8\u63a5\u53e3\u83b7\u53d6\u6570\u636e，\u7136\u540e\u505a\u4e1a\u52a1\u5904\u7406：<\/p>\n
\/\/ app_sensor.c \u2014\u2014 \u5e94\u7528\u5c42
\n#include "drv_temperature.h"
\n#include "ring_buffer.h"
\n#include "filter.h"<\/p>\nstatic DrvTemperature_t *temp_sensor;
\nstatic RingBuffer_t temp_history;<\/p>\nvoid App_SensorInit(void)
\n{
\n temp_sensor = DrvTemperature_Create(HAL_I2C_PORT_1, 0x48);
\n DrvTemperature_Init(temp_sensor);<\/p>\nstatic uint8_t history_buf[64];
\n RingBuffer_Init(&temp_history, history_buf, 64);
\n}<\/p>\nvoid App_SensorTask(void *pvParameters)
\n{
\n for (;;) {
\n \/\/ \u901a\u8fc7\u9a71\u52a8\u63a5\u53e3\u8bfb\u53d6\u539f\u59cb\u6570\u636e
\n float raw_temp;
\n if (DrvTemperature_Read(temp_sensor, &raw_temp) == 0) {
\n \/\/ \u5e94\u7528\u5c42\u505a\u4e1a\u52a1\u5904\u7406：\u6ee4\u6ce2
\n float filtered = Filter_Apply(&temp_filter, raw_temp);<\/p>\n\/\/ \u5e94\u7528\u5c42\u505a\u4e1a\u52a1\u5224\u65ad：\u9608\u503c\u544a\u8b66
\n if (filtered > TEMP_ALARM_THRESHOLD) {
\n App_TriggerAlarm(ALARM_HIGH_TEMP);
\n }<\/p>\n\/\/ \u5e94\u7528\u5c42\u51b3\u5b9a：\u662f\u5426\u4e0a\u62a5
\n if (ShouldReport(filtered)) {
\n App_ReportTemperature(filtered);
\n }
\n }<\/p>\nvTaskDelay(pdMS_TO_TICKS(1000));
\n }
\n}<\/p>\n\u5173\u952e\u70b9：\u00a0\u5e94\u7528\u5c42\u77e5\u9053"\u6e29\u5ea6\u8d85\u8fc7\u9608\u503c\u8981\u544a\u8b66"，\u4f46\u4e0d\u77e5\u9053"\u6e29\u5ea6\u4f20\u611f\u5668\u662f I2C \u63a5\u53e3\u8fd8\u662f SPI \u63a5\u53e3"\u3002\u9a71\u52a8\u5c42\u77e5\u9053"\u600e\u4e48\u8bfb I2C \u5bc4\u5b58\u5668"，\u4f46\u4e0d\u77e5\u9053"\u8bfb\u4e86\u4e4b\u540e\u8981\u5224\u65ad\u9608\u503c"\u3002<\/p>\n
\u5e94\u7528\u5c42\u4e0e\u4e2d\u95f4\u4ef6\u5c42\u7684\u4ea4\u4e92<\/h4>\n
\u5e94\u7528\u5c42\u4f7f\u7528\u4e2d\u95f4\u4ef6\u63d0\u4f9b\u7684\u670d\u52a1，\u4f46\u4e0d\u5173\u5fc3\u4e2d\u95f4\u4ef6\u7684\u5b9e\u73b0：<\/p>\n
\/\/ app_protocol.c \u2014\u2014 \u5e94\u7528\u5c42
\n#include "modbus.h" \/\/ \u4e2d\u95f4\u4ef6\u5c42
\n#include "drv_uart.h"<\/p>\nstatic Modbus_t modbus;
\nstatic DrvUart_t *uart;<\/p>\nvoid App_ProtocolInit(void)
\n{
\n uart = DrvUart_Create(HAL_UART_PORT_1, 115200);
\n DrvUart_Init(uart);<\/p>\nModbus_Init(&modbus, MODBUS_SLAVE, 0x01);
\n}<\/p>\nvoid App_ProtocolTask(void *pvParameters)
\n{
\n uint8_t byte;
\n uint8_t response[256];
\n uint32_t response_len;<\/p>\nfor (;;) {
\n \/\/ \u4ece\u9a71\u52a8\u5c42\u8bfb\u53d6\u6570\u636e
\n if (DrvUart_ReadByte(uart, &byte, 100) == 0) {
\n \/\/ \u4ea4\u7ed9\u4e2d\u95f4\u4ef6\u5c42\u7684 Modbus \u89e3\u6790\u5668
\n ModbusResult_t result = Modbus_ParseByte(&modbus, byte);<\/p>\nif (result == MODBUS_FRAME_COMPLETE) {
\n \/\/ \u5e94\u7528\u5c42\u5904\u7406\u4e1a\u52a1\u903b\u8f91
\n App_HandleModbusRequest(&modbus, response, &response_len);<\/p>\n\/\/ \u901a\u8fc7\u9a71\u52a8\u5c42\u53d1\u9001\u54cd\u5e94
\n DrvUart_Write(uart, response, response_len);
\n }
\n }
\n }
\n}<\/p>\n\u516d\u3001\u5206\u5c42\u5e26\u6765\u7684\u6536\u76ca：\u4e00\u4e2a\u771f\u5b9e\u5bf9\u6bd4<\/h3>\n
\u56de\u5230\u5f00\u5934\u90a3\u4e2a\u79fb\u690d\u9879\u76ee\u3002\u5982\u679c\u4e00\u5f00\u59cb\u5c31\u5206\u597d\u5c42，\u79fb\u690d\u7684\u5de5\u4f5c\u91cf\u4f1a\u662f\u4ec0\u4e48\u6837？<\/p>\n
\u9700\u8981\u6539\u7684\u6587\u4ef6：<\/p>\n
![](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260925164925-6ab6a61583229.png\")
<\/p>\n\u5b9e\u9645\u79fb\u690d\u65f6\u95f4：\u00a0\u5927\u7ea6 3 \u5929\u3002\u5176\u4e2d 2 \u5929\u662f\u91cd\u5199 HAL \u5c42，1 \u5929\u662f\u8c03\u8bd5\u3002<\/p>\n
\u5bf9\u6bd4\u6ca1\u6709\u5206\u5c42\u7684\u7248\u672c：\u00a05 \u5468\u3002\u5176\u4e2d 3 \u5468\u5728\u5265\u79bb\u8026\u5408，2 \u5468\u5728\u8c03\u8bd5\u3002<\/p>\n
\u5206\u5c42\u5e26\u6765\u7684\u6536\u76ca\u662f 10 \u500d\u4ee5\u4e0a\u7684\u6548\u7387\u5dee\u5f02\u3002\u00a0\u800c\u4e14\u8fd9\u4e2a\u6536\u76ca\u5728\u6bcf\u6b21\u6362\u82af\u7247\u3001\u6bcf\u6b21\u5347\u7ea7\u786c\u4ef6\u65f6\u90fd\u4f1a\u91cd\u590d\u83b7\u5f97\u3002<\/p>\n
\u4e03\u3001\u5e38\u89c1\u8bef\u533a\u4e0e\u8e29\u5751\u8bb0\u5f55<\/h3>\n
\u8bef\u533a\u4e00：HAL \u5c42\u592a\u539a，\u53d8\u6210"\u4e1a\u52a1\u5c42"<\/h4>\n
\u6709\u4e9b\u9879\u76ee\u7684 HAL \u5c42\u91cc\u585e\u6ee1\u4e86\u4e1a\u52a1\u903b\u8f91，\u6bd4\u5982：<\/p>\n
\/\/ HAL \u5c42\u91cc\u505a\u4e86\u534f\u8bae\u89e3\u6790
\nvoid HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
\n{
\n if (ParseModbusByte(…)) {
\n HandleModbusCommand(…);
\n }
\n}<\/p>\n\u95ee\u9898：\u00a0\u6362\u82af\u7247\u65f6，\u8fd9\u4e2a\u56de\u8c03\u51fd\u6570\u8981\u91cd\u5199，\u4e1a\u52a1\u903b\u8f91\u5c31\u4e22\u4e86\u3002\u6216\u8005\u6362\u534f\u8bae\u65f6，\u8981\u6539 HAL \u5c42，\u800c HAL \u5c42\u672c\u4e0d\u8be5\u5173\u5fc3\u534f\u8bae\u3002<\/p>\n
\u6b63\u786e\u505a\u6cd5：\u00a0HAL \u56de\u8c03\u53ea\u505a\u6570\u636e\u4f20\u9012，\u534f\u8bae\u89e3\u6790\u653e\u5728\u4e2d\u95f4\u4ef6\u5c42，\u4e1a\u52a1\u5904\u7406\u653e\u5728\u5e94\u7528\u5c42\u3002<\/p>\n
\u8bef\u533a\u4e8c：\u9a71\u52a8\u5c42\u76f4\u63a5\u8c03\u7528\u5e94\u7528\u5c42<\/h4>\n
\/\/ \u9a71\u52a8\u5c42\u53cd\u5411\u4f9d\u8d56
\nvoid DrvSensor_OnDataReady(float value)
\n{
\n App_OnSensorData(value); \/\/ \u9a71\u52a8\u5c42\u8c03\u7528\u5e94\u7528\u5c42
\n}<\/p>\n\u95ee\u9898：\u00a0\u4f9d\u8d56\u65b9\u5411\u53cd\u4e86\u3002\u9a71\u52a8\u5c42\u5e94\u8be5\u53ea\u63d0\u4f9b\u6570\u636e，\u4e0d\u5173\u5fc3\u8c01\u7528\u3002<\/p>\n
\u6b63\u786e\u505a\u6cd5：\u00a0\u9a71\u52a8\u5c42\u63d0\u4f9b\u56de\u8c03\u6ce8\u518c\u63a5\u53e3，\u5e94\u7528\u5c42\u6ce8\u518c\u56de\u8c03：<\/p>\n
\/\/ \u9a71\u52a8\u5c42
\ntypedef void (*DrvSensor_Callback_t)(float value, void *user_data);
\nvoid DrvSensor_RegisterCallback(DrvSensor_t *sensor,
\n DrvSensor_Callback_t callback,
\n void *user_data);<\/p>\n\/\/ \u5e94\u7528\u5c42
\nvoid App_OnSensorData(float value, void *user_data)
\n{
\n \/\/ \u4e1a\u52a1\u5904\u7406
\n}
\nDrvSensor_RegisterCallback(sensor, App_OnSensorData, NULL);<\/p>\n\u8bef\u533a\u4e09：\u4e2d\u95f4\u4ef6\u5c42\u4f9d\u8d56\u786c\u4ef6<\/h4>\n
\u6709\u4e9b\u4e2d\u95f4\u4ef6（\u6bd4\u5982\u65e5\u5fd7\u7cfb\u7edf）\u4e3a\u4e86\u6027\u80fd，\u76f4\u63a5\u64cd\u4f5c UART \u5bc4\u5b58\u5668\u3002\u8fd9\u7834\u574f\u4e86\u4e2d\u95f4\u4ef6\u5c42\u7684\u53ef\u79fb\u690d\u6027\u3002<\/p>\n
\u6b63\u786e\u505a\u6cd5：\u00a0\u4e2d\u95f4\u4ef6\u5c42\u901a\u8fc7\u63a5\u53e3\u4e0e\u786c\u4ef6\u4ea4\u4e92\u3002\u6bd4\u5982\u65e5\u5fd7\u7cfb\u7edf\u63d0\u4f9b\u4e00\u4e2a"\u8f93\u51fa\u51fd\u6570"\u63a5\u53e3，\u7531\u5e94\u7528\u5c42\u6ce8\u5165\u5177\u4f53\u7684 UART \u53d1\u9001\u51fd\u6570：<\/p>\n
\/\/ \u4e2d\u95f4\u4ef6\u5c42
\ntypedef void (*Log_OutputFunc_t)(const char *str);
\nvoid Log_Init(Log_OutputFunc_t output);
\nvoid Log_Info(const char *fmt, …);<\/p>\n\/\/ \u5e94\u7528\u5c42
\nvoid App_LogOutput(const char *str)
\n{
\n DrvUart_Write(uart, (const uint8_t *)str, strlen(str));
\n}
\nLog_Init(App_LogOutput);<\/p>\n\u8bef\u533a\u56db：\u5206\u5c42\u8fc7\u5ea6，\u63a5\u53e3\u592a\u591a<\/h4>\n
\u5206\u5c42\u662f\u4e3a\u4e86\u964d\u4f4e\u8026\u5408，\u4e0d\u662f\u4e3a\u4e86"\u770b\u8d77\u6765\u4e13\u4e1a"\u3002\u5982\u679c\u4e00\u4e2a\u5c0f\u9879\u76ee\u53ea\u6709\u4e09\u4e2a\u6587\u4ef6，\u786c\u8981\u5206\u6210 HAL\/\u9a71\u52a8\/\u4e2d\u95f4\u4ef6\/\u5e94\u7528\u56db\u5c42，\u53cd\u800c\u589e\u52a0\u4e86\u590d\u6742\u5ea6\u3002<\/p>\n
\u5224\u65ad\u6807\u51c6：\u00a0\u5982\u679c\u8fd9\u4e2a\u9879\u76ee\u6c38\u8fdc\u4e0d\u4f1a\u6362\u82af\u7247，\u4e5f\u4e0d\u4f1a\u590d\u7528\u4ee3\u7801，\u90a3\u5206\u4e24\u5c42\u5c31\u591f\u4e86（\u786c\u4ef6\u5c42 + \u4e1a\u52a1\u5c42）\u3002\u5206\u5c42\u7a0b\u5ea6\u5e94\u8be5\u4e0e\u9879\u76ee\u7684\u590d\u6742\u5ea6\u3001\u751f\u547d\u5468\u671f\u3001\u590d\u7528\u9700\u6c42\u5339\u914d\u3002<\/p>\n
\u8bef\u533a\u4e94：\u63a5\u53e3\u4e0d\u7a33\u5b9a，\u9891\u7e41\u53d8\u5316<\/h4>\n
HAL \u63a5\u53e3\u4e00\u65e6\u5b9a\u4e49，\u5c31\u5e94\u8be5\u5c3d\u91cf\u7a33\u5b9a\u3002\u5982\u679c\u56e0\u4e3a\u67d0\u4e2a\u9879\u76ee\u7684\u7279\u6b8a\u9700\u6c42\u9891\u7e41\u4fee\u6539\u63a5\u53e3，\u8bf4\u660e\u63a5\u53e3\u8bbe\u8ba1\u6709\u95ee\u9898\u3002<\/p>\n
\u6b63\u786e\u505a\u6cd5：\u00a0\u63a5\u53e3\u8bbe\u8ba1\u65f6\u8003\u8651\u901a\u7528\u6027\u3002\u5982\u679c\u67d0\u4e2a\u9879\u76ee\u6709\u7279\u6b8a\u9700\u6c42，\u901a\u8fc7\u6269\u5c55\u63a5\u53e3（\u800c\u4e0d\u662f\u4fee\u6539\u63a5\u53e3）\u6765\u6ee1\u8db3\u3002\u6bd4\u5982：<\/p>\n
\/\/ \u57fa\u7840\u63a5\u53e3
\nint HAL_UART_Send(HAL_UART_Port_t port, const uint8_t *data, uint32_t len);<\/p>\n\/\/ \u6269\u5c55\u63a5\u53e3（\u4e0d\u4fee\u6539\u57fa\u7840\u63a5\u53e3）
\nint HAL_UART_SendAsync(HAL_UART_Port_t port, const uint8_t *data, uint32_t len,
\n HAL_UART_TxCompleteCallback_t callback, void *user_data);<\/p>\n\u516b\u3001\u672c\u7bc7\u5c0f\u7ed3<\/h3>\n
\u9a71\u52a8\u5206\u5c42\u7684\u6838\u5fc3\u662f\u9694\u79bb\u53d8\u5316\u3002\u786c\u4ef6\u4f1a\u53d8，\u4e1a\u52a1\u903b\u8f91\u5c3d\u91cf\u4e0d\u53d8\u3002\u5206\u5c42\u7684\u76ee\u7684，\u662f\u8ba9\u786c\u4ef6\u53d8\u5316\u65f6，\u53ea\u9700\u8981\u6539\u6700\u5c11\u7684\u5730\u65b9\u3002<\/p>\n
\u7b2c\u4e00，\u5206\u5c42\u7684\u6838\u5fc3\u539f\u5219\u662f\u4f9d\u8d56\u65b9\u5411\u3002\u00a0\u4e0a\u5c42\u4f9d\u8d56\u4e0b\u5c42\u7684\u63a5\u53e3，\u4e0d\u4f9d\u8d56\u4e0b\u5c42\u7684\u5b9e\u73b0\u3002\u4e0b\u5c42\u4e0d\u77e5\u9053\u4e0a\u5c42\u7684\u5b58\u5728\u3002\u786c\u4ef6\u76f8\u5173\u7684\u4ee3\u7801\u96c6\u4e2d\u5728 HAL \u5c42，\u4e0a\u5c42\u4ee3\u7801\u4e0d\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668\u3002<\/p>\n
\u7b2c\u4e8c，HAL \u5c42\u8981\u8584\u3002\u00a0\u53ea\u505a\u786c\u4ef6\u64cd\u4f5c，\u4e0d\u505a\u4efb\u4f55\u51b3\u7b56\u3002HAL \u5c42\u662f\u552f\u4e00\u5141\u8bb8\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668\u7684\u5c42，\u5b83\u5c4f\u853d\u82af\u7247\u5dee\u5f02，\u63d0\u4f9b\u6700\u5c0f\u53ef\u7528\u7684\u64cd\u4f5c\u63a5\u53e3\u3002<\/p>\n
\u7b2c\u4e09，\u9a71\u52a8\u5c42\u5c01\u88c5\u8bbe\u5907\u7279\u6027\u3002\u00a0\u5b83\u77e5\u9053\u8bbe\u5907\u7684\u5bc4\u5b58\u5668\u5730\u5740\u3001\u521d\u59cb\u5316\u5e8f\u5217\u3001\u9519\u8bef\u5904\u7406\u65b9\u5f0f，\u4f46\u4e0d\u6d89\u53ca\u4e1a\u52a1\u903b\u8f91\u3002\u901a\u8fc7"\u63a5\u53e3 + \u5b9e\u73b0\u5206\u79bb"，\u652f\u6301\u591a\u578b\u53f7\u8bbe\u5907\u7684\u53ef\u66ff\u6362\u3002<\/p>\n
\u7b2c\u56db，\u4e2d\u95f4\u4ef6\u5c42\u63d0\u4f9b\u8de8\u9879\u76ee\u590d\u7528\u7684\u901a\u7528\u670d\u52a1\u3002\u00a0\u73af\u5f62\u7f13\u51b2\u533a\u3001\u534f\u8bae\u89e3\u6790\u5668\u3001\u65e5\u5fd7\u7cfb\u7edf\u3001\u6587\u4ef6\u7cfb\u7edf，\u8fd9\u4e9b\u4e0e\u786c\u4ef6\u65e0\u5173\u3001\u4e0e\u4e1a\u52a1\u65e0\u5173\u7684\u4ee3\u7801，\u5e94\u8be5\u72ec\u7acb\u6210\u5c42，\u4fbf\u4e8e\u6d4b\u8bd5\u548c\u590d\u7528\u3002<\/p>\n
\u7b2c\u4e94，\u5e94\u7528\u5c42\u662f\u4e1a\u52a1\u903b\u8f91\u7684\u5f52\u5c5e\u5730\u3002\u00a0\u5b83\u77e5\u9053"\u8981\u505a\u4ec0\u4e48"，\u4e0d\u5173\u5fc3"\u600e\u4e48\u505a"\u3002\u901a\u8fc7\u9a71\u52a8\u5c42\u63a5\u53e3\u8bbf\u95ee\u8bbe\u5907，\u901a\u8fc7\u4e2d\u95f4\u4ef6\u5c42\u670d\u52a1\u5904\u7406\u6570\u636e\u3002<\/p>\n
\u5206\u5c42\u7684\u6536\u76ca\u662f\u590d\u5229\u5f0f\u7684\u3002\u00a0\u6bcf\u6b21\u6362\u82af\u7247\u3001\u6bcf\u6b21\u5347\u7ea7\u786c\u4ef6\u3001\u6bcf\u6b21\u65b0\u589e\u578b\u53f7，\u5206\u5c42\u5e26\u6765\u7684\u6548\u7387\u5dee\u5f02\u90fd\u4f1a\u91cd\u590d\u83b7\u5f97\u3002<\/p>\n
\u4e0b\u4e00\u7bc7，\u6211\u4eec\u8bb2\u8d44\u6e90\u53d7\u9650\u4e0b\u7684\u65e5\u5fd7\u7cfb\u7edf\u8bbe\u8ba1\u3002\u8fd9\u662f\u6a21\u5757\u4e00\u7684\u6700\u540e\u4e00\u7bc7，\u4e5f\u662f\u628a\u524d\u9762\u6240\u6709\u5185\u5bb9\u4e32\u8d77\u6765\u7684\u4e00\u7bc7\u3002\u6211\u4f1a\u5c55\u793a\u600e\u4e48\u7528\u73af\u5f62\u7f13\u51b2\u533a + DMA + \u4f4e\u4f18\u5148\u7ea7\u65e5\u5fd7\u4efb\u52a1，\u8bbe\u8ba1\u4e00\u4e2a\u5728 64KB RAM \u7684 MCU \u4e0a\u8fd0\u884c\u3001\u4e0d\u5f71\u54cd\u5b9e\u65f6\u6027\u3001\u53c8\u80fd\u4fdd\u7559\u8db3\u591f\u73b0\u573a\u4fe1\u606f\u7684\u65e5\u5fd7\u7cfb\u7edf\u3002<\/p>\n
\u601d\u8003\u9898<\/h3>\n
- \n
\u4f60\u7684\u9879\u76ee\u91cc，\u9a71\u52a8\u5c42\u6709\u6ca1\u6709\u76f4\u63a5\u64cd\u4f5c\u5bc4\u5b58\u5668？\u5982\u679c\u6709，\u6362\u82af\u7247\u65f6\u9700\u8981\u6539\u591a\u5c11\u5730\u65b9？<\/p>\n<\/li>\n
- \n
HAL \u5c42\u5e94\u8be5\u63d0\u4f9b"\u540c\u6b65\u53d1\u9001"\u8fd8\u662f"\u5f02\u6b65\u53d1\u9001"\u63a5\u53e3？\u8fd8\u662f\u4e24\u8005\u90fd\u8981？<\/p>\n<\/li>\n
- \n
\u5982\u679c\u4e2d\u95f4\u4ef6\u5c42\u9700\u8981\u5206\u914d\u5185\u5b58（\u6bd4\u5982\u52a8\u6001\u521b\u5efa\u5bf9\u8c61），\u5e94\u8be5\u7531\u8c01\u63d0\u4f9b\u5185\u5b58\u5206\u914d\u51fd\u6570？<\/p>\n<\/li>\n
\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u4e0b\u4f60\u7684\u7b54\u6848\u3002\u4e0b\u4e00\u7bc7\u89c1\u3002<\/p>\n
\n💖 \u70b9\u8d5e + \u6536\u85cf + \u5173\u6ce8<\/p>\n
\u5982\u679c\u8fd9\u7bc7\u6587\u7ae0\u8ba9\u4f60\u5bf9\u9a71\u52a8\u5206\u5c42\u6709\u4e86\u6e05\u6670\u7684\u8ba4\u8bc6，\u70b9\u8d5e\u8ba9\u66f4\u591a\u540c\u884c\u770b\u5230，\u6536\u85cf\u65b9\u4fbf\u968f\u65f6\u67e5\u9605，\u5173\u6ce8\u4e0d\u9519\u8fc7\u4e0b\u4e00\u7bc7\u300a\u8d44\u6e90\u53d7\u9650\u4e0b\u7684\u65e5\u5fd7\u7cfb\u7edf\u8bbe\u8ba1\u300b\u3002<\/p>\n
\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"
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