{"id":52145,"date":"2025-08-11T10:37:21","date_gmt":"2025-08-11T02:37:21","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/52145.html"},"modified":"2025-08-11T10:37:21","modified_gmt":"2025-08-11T02:37:21","slug":"%e9%9c%87%e5%8a%a8%e9%a9%ac%e8%be%be%e5%ae%9e%e7%8e%b0%e5%ba%93%e5%87%bd%e6%95%b0%e7%89%88%ef%bc%88stc8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/52145.html","title":{"rendered":"\u9707\u52a8\u9a6c\u8fbe\u5b9e\u73b0\u5e93\u51fd\u6570\u7248\uff08STC8\uff09"},"content":{"rendered":"

\u9707\u52a8\u9a6c\u8fbe\u5b9e\u73b0\u5e93\u51fd\u6570\u7248（STC8）<\/h2>\n

\u786c\u4ef6\u8fde\u63a5<\/h4>\n

\u9707\u52a8\u9a6c\u8fbe\u901a\u5e38\u8fde\u63a5\u5728\u5355\u7247\u673a\u7684PWM\u8f93\u51fa\u5f15\u811a\u4e0a，\u4f8b\u5982P1.5（\u5bf9\u5e94PWM2\u901a\u9053）\u3002\u9700\u786e\u4fdd\u9a6c\u8fbe\u9a71\u52a8\u7535\u8def\u5305\u542b\u4e09\u6781\u7ba1\u6216MOS\u7ba1\u653e\u5927\u7535\u6d41，\u5e76\u53cd\u5411\u5e76\u8054\u7eed\u6d41\u4e8c\u6781\u7ba1\u4fdd\u62a4\u3002<\/p>\n

STC8 PWM\u5e93\u51fd\u6570\u914d\u7f6e<\/h4>\n

#<\/span>include<\/span> "GPIO.h"<\/span><\/span>
\n#<\/span>include<\/span>"Delay.h"<\/span><\/span>
\n#<\/span>include<\/span> "UART.h"<\/span>\/\/ \u4e32\u53e3\u914d\u7f6e UART_Configuration<\/span><\/span>
\n#<\/span>include<\/span> "NVIC.h"<\/span>\/\/ \u4e2d\u65ad\u521d\u59cb\u5316NVIC_UART1_Init<\/span><\/span>
\n#<\/span>include<\/span> "Switch.h"<\/span> \/\/ \u5f15\u811a\u5207\u6362 UART1_SW_P30_P31<\/span><\/span>
\n#<\/span>include<\/span> "STC8H_PWM.h"<\/span><\/span><\/p>\n

\/\/ \u5b8f\u5b9a\u4e49，\u7ed9\u5f15\u811a\u8d77\u522b\u540d<\/span>
\n#<\/span>define<\/span> MOTOR<\/span> P01<\/span><\/span><\/p>\n

void<\/span> GPIO_config<\/span>(<\/span>)<\/span> {<\/span>
\n GPIO_InitTypeDef info;<\/span>
\n\/\/ ===== UART1 P30 P31 \u51c6\u53cc\u5411<\/span>
\n info.<\/span>Mode =<\/span> GPIO_PullUp;<\/span> \/\/ \u51c6\u53cc\u5411<\/span>
\n info.<\/span>Pin =<\/span> GPIO_Pin_0 |<\/span> GPIO_Pin_1;<\/span> \/\/ \u5f15\u811a<\/span>
\n GPIO_Inilize<\/span>(<\/span>GPIO_P3,<\/span> &<\/span>info)<\/span>;<\/span><\/p>\n

\/\/\u63a8\u633d\u8f93\u51faP01<\/span>
\nP0_MODE_OUT_PP<\/span>(<\/span>GPIO_Pin_1)<\/span>;<\/span> \/\/ \u63a8\u633d\u8f93\u51fa\u9ed8\u8ba4\u662f\u9ad8\u7535\u5e73<\/span>
\nMOTOR =<\/span> 0<\/span>;<\/span> \/\/ \u5efa\u8bae\u62c9\u4f4e<\/span>
\n}<\/span><\/p>\n

\/\/ \u4e32\u53e3\u914d\u7f6e\u51fd\u6570\u7684\u5b9a\u4e49<\/span>
\nvoid<\/span> UART_config<\/span>(<\/span>void<\/span>)<\/span> {<\/span>
\n\/\/ >>> \u8bb0\u5f97\u6dfb\u52a0 NVIC.c, UART.c, UART_Isr.c <<<<\/span>
\n COMx_InitDefineCOMx_InitStructure;<\/span>\/\/\u7ed3\u6784\u5b9a\u4e49<\/span>
\n COMx_InitStructure.<\/span>UART_Mode =<\/span> UART_8bit_BRTx;<\/span>\/\/\u6a21\u5f0f, UART_ShiftRight,UART_8bit_BRTx,UART_9bit,UART_9bit_BRTx<\/span>
\n COMx_InitStructure.<\/span>UART_BRT_Use =<\/span> BRT_Timer1;<\/span>\/\/\u9009\u62e9\u6ce2\u7279\u7387\u53d1\u751f\u5668, BRT_Timer1, BRT_Timer2 (\u6ce8\u610f: \u4e32\u53e32\u56fa\u5b9a\u4f7f\u7528BRT_Timer2)<\/span>
\n COMx_InitStructure.<\/span>UART_BaudRate =<\/span> 115200ul<\/span>;<\/span>\/\/\u6ce2\u7279\u7387, \u4e00\u822c 110 ~ 115200<\/span>
\n COMx_InitStructure.<\/span>UART_RxEnable =<\/span> ENABLE;<\/span>\/\/\u63a5\u6536\u5141\u8bb8, ENABLE\u6216DISABLE<\/span>
\n COMx_InitStructure.<\/span>BaudRateDouble =<\/span> DISABLE;<\/span>\/\/\u6ce2\u7279\u7387\u52a0\u500d, ENABLE\u6216DISABLE<\/span>
\n UART_Configuration<\/span>(<\/span>UART1,<\/span> &<\/span>COMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316\u4e32\u53e31 UART1,UART2,UART3,UART4<\/span><\/p>\n

NVIC_UART1_Init<\/span>(<\/span>ENABLE,<\/span>Priority_1)<\/span>;<\/span>\/\/\u4e2d\u65ad\u4f7f\u80fd, ENABLE\/DISABLE; \u4f18\u5148\u7ea7(\u4f4e\u5230\u9ad8) Priority_0,Priority_1,Priority_2,Priority_3<\/span>
\n UART1_SW<\/span>(<\/span>UART1_SW_P30_P31)<\/span>;<\/span>\/\/ \u5f15\u811a\u9009\u62e9, UART1_SW_P30_P31,UART1_SW_P36_P37,UART1_SW_P16_P17,UART1_SW_P43_P44<\/span>
\n}<\/span><\/p>\n

\/\/ PWMB \u914d\u7f6e<\/span>
\n#<\/span>define<\/span> PERIOD<\/span> (<\/span>MAIN_Fosc \/<\/span> 1000<\/span>)<\/span><\/span><\/span>
\nvoid<\/span>PWM_config<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nPWMx_InitDefinePWMx_InitStructure;<\/span>
\n\/\/ \u914d\u7f6ePWM6<\/span>
\nPWMx_InitStructure.<\/span>PWM_Mode =<\/span> CCMRn_PWM_MODE1;<\/span>\/\/\u6a21\u5f0f,CCMRn_FREEZE,CCMRn_MATCH_VALID,CCMRn_MATCH_INVALID,CCMRn_ROLLOVER,CCMRn_FORCE_INVALID,CCMRn_FORCE_VALID,CCMRn_PWM_MODE1,CCMRn_PWM_MODE2<\/span>
\nPWMx_InitStructure.<\/span>PWM_Duty =<\/span> 0.0<\/span> *<\/span> PERIOD;<\/span>\/\/PWM\u5360\u7a7a\u6bd4\u65f6\u95f4, 0~Period<\/span>
\nPWMx_InitStructure.<\/span>PWM_EnoSelect =<\/span> ENO6P;<\/span>\/\/\u8f93\u51fa\u901a\u9053\u9009\u62e9,ENO1P,ENO1N,ENO2P,ENO2N,ENO3P,ENO3N,ENO4P,ENO4N \/ ENO5P,ENO6P,ENO7P,ENO8P<\/span>
\nPWM_Configuration<\/span>(<\/span>PWM6,<\/span> &<\/span>PWMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316PWM, PWMA,PWMB<\/span><\/p>\n

\/\/ \u914d\u7f6ePWMB<\/span>
\nPWMx_InitStructure.<\/span>PWM_Period =<\/span> PERIOD –<\/span> 1<\/span>;<\/span>\/\/\u5468\u671f\u65f6\u95f4, 0~65535<\/span>
\nPWMx_InitStructure.<\/span>PWM_DeadTime =<\/span> 0<\/span>;<\/span>\/\/\u6b7b\u533a\u53d1\u751f\u5668\u8bbe\u7f6e, 0~255<\/span>
\nPWMx_InitStructure.<\/span>PWM_MainOutEnable=<\/span> ENABLE;<\/span>\/\/\u4e3b\u8f93\u51fa\u4f7f\u80fd, ENABLE,DISABLE<\/span>
\nPWMx_InitStructure.<\/span>PWM_CEN_Enable =<\/span> ENABLE;<\/span>\/\/\u4f7f\u80fd\u8ba1\u6570\u5668, ENABLE,DISABLE<\/span>
\nPWM_Configuration<\/span>(<\/span>PWMB,<\/span> &<\/span>PWMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316PWM\u901a\u7528\u5bc4\u5b58\u5668, PWMA,PWMB<\/span><\/p>\n

\/\/ \u5207\u6362PWM\u901a\u9053<\/span>
\nPWM6_SW<\/span>(<\/span>PWM6_SW_P01)<\/span>;<\/span>\/\/PWM6_SW_P21,PWM6_SW_P54,PWM6_SW_P01,PWM6_SW_P75<\/span><\/p>\n

\/\/ \u521d\u59cb\u5316PWMB\u7684\u4e2d\u65ad<\/span>
\nNVIC_PWM_Init<\/span>(<\/span>PWMB,<\/span>DISABLE,<\/span>Priority_0)<\/span>;<\/span>
\n}<\/span><\/p>\n

\/\/ \u66f4\u65b0PWM\u5360\u7a7a\u6bd4<\/span>
\nvoid<\/span> Update_pwm_duty<\/span>(<\/span>char<\/span> value)<\/span> {<\/span> \/\/ 0 ~ 100<\/span>
\nPWMx_Duty duty;<\/span>
\nduty.<\/span>PWM6_Duty =<\/span> (<\/span>value \/<\/span> 100.0<\/span>)<\/span> *<\/span> PERIOD;<\/span>
\nUpdatePwm<\/span>(<\/span>PWM6,<\/span> &<\/span>duty)<\/span>;<\/span>
\n}<\/span><\/p>\n

void<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
\nchar<\/span> i =<\/span> 0<\/span>;<\/span>
\nEAXSFR<\/span>(<\/span>)<\/span>;<\/span>\/* \u6269\u5c55\u5bc4\u5b58\u5668\u8bbf\u95ee\u4f7f\u80fd *\/<\/span>
\nEA =<\/span> 1<\/span>;<\/span> \/\/ \u4f7f\u80fd\u4e2d\u65ad\u603b\u5f00\u5173<\/span><\/p>\n

GPIO_config<\/span>(<\/span>)<\/span>;<\/span> \/\/ GPIO\u914d\u7f6e<\/span>
\nUART_config<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u4e32\u53e3\u914d\u7f6e<\/span>
\nPWM_config<\/span>(<\/span>)<\/span>;<\/span> \/\/ \u8c03\u7528PWM\u914d\u7f6e<\/span><\/p>\n

\/\/ \u9010\u6e10\u589e\u5f3a<\/span>
\nfor<\/span>(<\/span>i =<\/span> 0<\/span>;<\/span> i <=<\/span> 100<\/span>;<\/span> i +=<\/span> 5<\/span>)<\/span> {<\/span>
\nUpdate_pwm_duty<\/span>(<\/span>i)<\/span>;<\/span>
\ndelay_ms<\/span>(<\/span>250<\/span>)<\/span>;<\/span>
\n}<\/span>
\nUpdate_pwm_duty<\/span>(<\/span>0<\/span>)<\/span>;<\/span><\/p>\n

while<\/span> (<\/span>1<\/span>)<\/span>{<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u9707\u52a8\u5f3a\u5ea6\u63a7\u5236<\/h4>\n

\u901a\u8fc7\u4fee\u6539\u5360\u7a7a\u6bd4\u5bc4\u5b58\u5668\u63a7\u5236\u9707\u52a8\u5f3a\u5ea6：<\/p>\n

\/\/ \u66f4\u65b0PWM\u5360\u7a7a\u6bd4<\/span>
\nvoid<\/span> Update_pwm_duty<\/span>(<\/span>char<\/span> value)<\/span> {<\/span> \/\/ 0 ~ 100<\/span>
\nPWMx_Duty duty;<\/span>
\nduty.<\/span>PWM6_Duty =<\/span> (<\/span>value \/<\/span> 100.0<\/span>)<\/span> *<\/span> PERIOD;<\/span>
\nUpdatePwm<\/span>(<\/span>PWM6,<\/span> &<\/span>duty)<\/span>;<\/span>
\n}<\/span><\/p>\n

\u5b9a\u65f6\u9707\u52a8\u6a21\u5f0f<\/h4>\n

\u5229\u7528\u5b9a\u65f6\u5668\u5b9e\u73b0\u95f4\u6b47\u9707\u52a8：<\/p>\n

void<\/span> Timer0_ISR<\/span>(<\/span>)<\/span>
\n{<\/span>
\n static<\/span> uint8_t<\/span> counter =<\/span> 0<\/span>;<\/span>
\n if<\/span>(<\/span>++<\/span>counter >=<\/span> 20<\/span>)<\/span> {<\/span> \/\/ \u7ea61\u79d2\u5207\u6362\u72b6\u6001<\/span>
\n counter =<\/span> 0<\/span>;<\/span>
\n PWMB_CCER2 ^=<\/span> 0x01<\/span>;<\/span> \/\/ \u5207\u6362PWM\u8f93\u51fa\u72b6\u6001<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u6848\u4f8b<\/p>\n

#<\/span>include<\/span> "GPIO.h"<\/span><\/span>
\n#<\/span>include<\/span>"Delay.h"<\/span><\/span>
\n#<\/span>include<\/span> "UART.h"<\/span><\/span>
\n#<\/span>include<\/span> "NVIC.h"<\/span><\/span>
\n#<\/span>include<\/span> "Switch.h"<\/span><\/span>
\n#<\/span>include<\/span> "STC8H_PWM.h"<\/span><\/span>
\n#<\/span>include<\/span>"Timer.h"<\/span><\/span><\/p>\n

#<\/span>define<\/span> MOTOR<\/span> P01<\/span><\/span>
\nint<\/span> i =<\/span> 0<\/span>;<\/span><\/p>\n

void<\/span> GPIO_config<\/span>(<\/span>void<\/span>)<\/span> {<\/span><\/p>\n

GPIO_InitTypeDefGPIO_InitStructure;<\/span>\/\/\u7ed3\u6784\u5b9a\u4e49<\/span>
\nGPIO_InitStructure.<\/span>Pin =<\/span> GPIO_Pin_0 |<\/span>GPIO_Pin_1;<\/span>\/\/\u6307\u5b9a\u8981\u521d\u59cb\u5316\u7684IO,<\/span>
\nGPIO_InitStructure.<\/span>Mode =<\/span> GPIO_PullUp;<\/span>\/\/\u6307\u5b9aIO\u7684\u8f93\u5165\u6216\u8f93\u51fa\u65b9\u5f0f,GPIO_PullUp,GPIO_HighZ,GPIO_OUT_OD,GPIO_OUT_PP<\/span>
\nGPIO_Inilize<\/span>(<\/span>GPIO_P3,<\/span> &<\/span>GPIO_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316<\/span><\/p>\n

\/\/\u63a8\u633d\u8f93\u51faP01<\/span>
\n P0_MODE_OUT_PP<\/span>(<\/span>GPIO_Pin_1)<\/span>;<\/span><\/p>\n

MOTOR =<\/span> 0<\/span> ;<\/span>
\n}<\/span>
\nvoid<\/span> UART_config<\/span>(<\/span>void<\/span>)<\/span> {<\/span>
\n\/\/ >>> \u8bb0\u5f97\u6dfb\u52a0 NVIC.c, UART.c, UART_Isr.c <<<<\/span>
\n COMx_InitDefineCOMx_InitStructure;<\/span>\/\/\u7ed3\u6784\u5b9a\u4e49<\/span>
\n COMx_InitStructure.<\/span>UART_Mode =<\/span> UART_8bit_BRTx;<\/span>\/\/\u6a21\u5f0f, UART_ShiftRight,UART_8bit_BRTx,UART_9bit,UART_9bit_BRTx<\/span>
\n COMx_InitStructure.<\/span>UART_BRT_Use =<\/span> BRT_Timer1;<\/span>\/\/\u9009\u62e9\u6ce2\u7279\u7387\u53d1\u751f\u5668, BRT_Timer1, BRT_Timer2 (\u6ce8\u610f: \u4e32\u53e32\u56fa\u5b9a\u4f7f\u7528BRT_Timer2)<\/span>
\n COMx_InitStructure.<\/span>UART_BaudRate =<\/span> 115200ul<\/span>;<\/span>\/\/\u6ce2\u7279\u7387, \u4e00\u822c 110 ~ 115200<\/span>
\n COMx_InitStructure.<\/span>UART_RxEnable =<\/span> ENABLE;<\/span>\/\/\u63a5\u6536\u5141\u8bb8, ENABLE\u6216DISABLE<\/span>
\n COMx_InitStructure.<\/span>BaudRateDouble =<\/span> DISABLE;<\/span>\/\/\u6ce2\u7279\u7387\u52a0\u500d, ENABLE\u6216DISABLE<\/span>
\n UART_Configuration<\/span>(<\/span>UART1,<\/span> &<\/span>COMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316\u4e32\u53e31 UART1,UART2,UART3,UART4<\/span><\/p>\n

NVIC_UART1_Init<\/span>(<\/span>ENABLE,<\/span>Priority_1)<\/span>;<\/span>\/\/\u4e2d\u65ad\u4f7f\u80fd, ENABLE\/DISABLE; \u4f18\u5148\u7ea7(\u4f4e\u5230\u9ad8) Priority_0,Priority_1,Priority_2,Priority_3<\/span>
\n UART1_SW<\/span>(<\/span>UART1_SW_P30_P31)<\/span>;<\/span>\/\/ \u5f15\u811a\u9009\u62e9, UART1_SW_P30_P31,UART1_SW_P36_P37,UART1_SW_P16_P17,UART1_SW_P43_P44<\/span>
\n}<\/span><\/p>\n

#<\/span>define<\/span> PERIOD<\/span> (<\/span>MAIN_Fosc \/<\/span> 1000<\/span>)<\/span><\/span><\/span>
\nvoid<\/span>PWM_config<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nPWMx_InitDefinePWMx_InitStructure;<\/span>
\n\/\/ \u914d\u7f6ePWM6<\/span>
\nPWMx_InitStructure.<\/span>PWM_Mode =<\/span> CCMRn_PWM_MODE1;<\/span>\/\/\u6a21\u5f0f,CCMRn_FREEZE,CCMRn_MATCH_VALID,CCMRn_MATCH_INVALID,CCMRn_ROLLOVER,CCMRn_FORCE_INVALID,CCMRn_FORCE_VALID,CCMRn_PWM_MODE1,CCMRn_PWM_MODE2<\/span>
\nPWMx_InitStructure.<\/span>PWM_Duty =<\/span> 0.0<\/span> *<\/span> PERIOD;<\/span>\/\/PWM\u5360\u7a7a\u6bd4\u65f6\u95f4, 0~Period<\/span>
\nPWMx_InitStructure.<\/span>PWM_EnoSelect =<\/span> ENO6P;<\/span>\/\/\u8f93\u51fa\u901a\u9053\u9009\u62e9,ENO1P,ENO1N,ENO2P,ENO2N,ENO3P,ENO3N,ENO4P,ENO4N \/ ENO5P,ENO6P,ENO7P,ENO8P<\/span>
\nPWM_Configuration<\/span>(<\/span>PWM6,<\/span> &<\/span>PWMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316PWM, PWMA,PWMB<\/span>
\n\/\/ \u914d\u7f6ePWMB<\/span>
\nPWMx_InitStructure.<\/span>PWM_Period =<\/span> PERIOD –<\/span> 1<\/span>;<\/span>\/\/\u5468\u671f\u65f6\u95f4, 0~65535<\/span>
\nPWMx_InitStructure.<\/span>PWM_DeadTime =<\/span> 0<\/span>;<\/span>\/\/\u6b7b\u533a\u53d1\u751f\u5668\u8bbe\u7f6e, 0~255<\/span>
\nPWMx_InitStructure.<\/span>PWM_MainOutEnable=<\/span> ENABLE;<\/span>\/\/\u4e3b\u8f93\u51fa\u4f7f\u80fd, ENABLE,DISABLE<\/span>
\nPWMx_InitStructure.<\/span>PWM_CEN_Enable =<\/span> ENABLE;<\/span>\/\/\u4f7f\u80fd\u8ba1\u6570\u5668, ENABLE,DISABLE<\/span>
\nPWM_Configuration<\/span>(<\/span>PWMB,<\/span> &<\/span>PWMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316PWM\u901a\u7528\u5bc4\u5b58\u5668, PWMA,PWMB<\/span><\/p>\n

\/\/ \u5207\u6362PWM\u901a\u9053<\/span>
\nPWM6_SW<\/span>(<\/span>PWM6_SW_P01)<\/span>;<\/span>\/\/PWM6_SW_P21,PWM6_SW_P54,PWM6_SW_P01,PWM6_SW_P75<\/span>
\n\/\/ \u521d\u59cb\u5316PWMB\u7684\u4e2d\u65ad<\/span>
\nNVIC_PWM_Init<\/span>(<\/span>PWMB,<\/span>DISABLE,<\/span>Priority_0)<\/span>;<\/span>
\n}<\/span>
\nvoid<\/span> pwm_set_duty<\/span>(<\/span>char<\/span> value)<\/span>{<\/span>
\n PWMx_Duty duty ;<\/span>
\n duty.<\/span>PWM6_Duty =<\/span> (<\/span>value\/<\/span>100.0<\/span>)<\/span>*<\/span>PERIOD;<\/span>
\n UpdatePwm<\/span>(<\/span>PWM6,<\/span> &<\/span>duty)<\/span>;<\/span><\/p>\n

}<\/span>
\nvoid<\/span>Timer_config<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nTIM_InitTypeDefTIM_InitStructure;<\/span>\/\/\u7ed3\u6784\u5b9a\u4e49<\/span>
\n\/\/\u5b9a\u65f6\u56680\u505a16\u4f4d\u81ea\u52a8\u91cd\u88c5, \u4e2d\u65ad\u9891\u7387\u4e3a1000HZ<\/span>
\nTIM_InitStructure.<\/span>TIM_Mode =<\/span> TIM_16BitAutoReload;<\/span>\/\/\u6307\u5b9a\u5de5\u4f5c\u6a21\u5f0f, TIM_16BitAutoReload,TIM_16Bit,TIM_8BitAutoReload,TIM_16BitAutoReloadNoMask<\/span>
\nTIM_InitStructure.<\/span>TIM_ClkSource =<\/span> TIM_CLOCK_1T;<\/span>\/\/\u6307\u5b9a\u65f6\u949f\u6e90, TIM_CLOCK_1T,TIM_CLOCK_12T,TIM_CLOCK_Ext<\/span>
\nTIM_InitStructure.<\/span>TIM_ClkOut =<\/span> DISABLE;<\/span>\/\/\u662f\u5426\u8f93\u51fa\u9ad8\u901f\u8109\u51b2, ENABLE\u6216DISABLE<\/span>
\nTIM_InitStructure.<\/span>TIM_Value =<\/span> 65536UL<\/span> –<\/span> (<\/span>MAIN_Fosc \/<\/span> 1000UL<\/span>)<\/span>;<\/span>\/\/\u521d\u503c,<\/span>
\nTIM_InitStructure.<\/span>TIM_Run =<\/span> ENABLE;<\/span>\/\/\u662f\u5426\u521d\u59cb\u5316\u540e\u542f\u52a8\u5b9a\u65f6\u5668, ENABLE\u6216DISABLE<\/span>
\nTimer_Inilize<\/span>(<\/span>Timer0,<\/span>&<\/span>TIM_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316Timer0 Timer0,Timer1,Timer2,Timer3,Timer4<\/span>
\nNVIC_Timer0_Init<\/span>(<\/span>ENABLE,<\/span>Priority_0)<\/span>;<\/span>\/\/\u4e2d\u65ad\u4f7f\u80fd, ENABLE\/DISABLE; \u4f18\u5148\u7ea7(\u4f4e\u5230\u9ad8) Priority_0,Priority_1,Priority_2,Priority_3<\/span>
\n}<\/span>
\n\/\/ \u66f4\u65b0PWM\u5360\u7a7a\u6bd4<\/span>
\nvoid<\/span> Update_pwm_duty<\/span>(<\/span>char<\/span> value)<\/span> {<\/span> \/\/ 0 ~ 100<\/span>
\nPWMx_Duty duty;<\/span>
\nduty.<\/span>PWM6_Duty =<\/span> (<\/span>value \/<\/span> 100.0<\/span>)<\/span> *<\/span> PERIOD;<\/span>
\nUpdatePwm<\/span>(<\/span>PWM6,<\/span> &<\/span>duty)<\/span>;<\/span>
\n}<\/span>
\nvoid<\/span> timer0_call<\/span>(<\/span>)<\/span>{<\/span>
\n\/\/ TODO: \u5728\u6b64\u5904\u6dfb\u52a0\u7528\u6237\u4ee3\u7801<\/span>
\n i++<\/span>;<\/span>
\n if<\/span> (<\/span>i ==<\/span> 10000<\/span>)<\/span> {<\/span> \/\/ 1000\u4e2a1ms\u624d\u8fdb\u51651\u6b21 \u6bcf\u96941s，\u9707\u52a81\u6b21<\/span>
\n P01 =<\/span> !<\/span>P01;<\/span>
\n Update_pwm_duty<\/span>(<\/span>i)<\/span>;<\/span>
\n printf<\/span>(<\/span>"i = %d\\\\r\\\\n"<\/span>,<\/span>i)<\/span>;<\/span><\/p>\n

i =<\/span> 0<\/span>;<\/span> \/\/ \u91cd\u7f6e<\/span>
\n }<\/span>
\n}<\/span>
\nvoid<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
\n EAXSFR<\/span> (<\/span>)<\/span>;<\/span>
\nEA =<\/span> 1<\/span>;<\/span>
\n GPIO_config<\/span>(<\/span>)<\/span>;<\/span>
\n UART_config<\/span>(<\/span>)<\/span>;<\/span>
\n PWM_config<\/span>(<\/span>)<\/span>;<\/span>
\n Timer_config<\/span>(<\/span>)<\/span>;<\/span>
\n while<\/span> (<\/span>1<\/span>)<\/span>{<\/span>
\n}<\/span>
\n}<\/span><\/p>\n

\u6ce8\u610f\u4e8b\u9879<\/h4>\n
  • \u9700\u6839\u636e\u5b9e\u9645\u9a6c\u8fbe\u5de5\u4f5c\u7535\u538b\u8c03\u6574PWM\u9891\u7387（\u901a\u5e38500Hz-2kHz）<\/li>\n
  • \u9a6c\u8fbe\u4e24\u7aef\u5efa\u8bae\u5e76\u80540.1\u03bcF\u7535\u5bb9\u6ee4\u6ce2<\/li>\n
  • \u957f\u65f6\u95f4\u5de5\u4f5c\u65f6\u9700\u6ce8\u610f\u6563\u70ed<\/li>\n
  • STC8\u7cfb\u5217\u9700\u5148\u8bbe\u7f6eI\/O\u53e3\u6a21\u5f0f\u518d\u914d\u7f6ePWM<\/li>\n

    \u5178\u578b\u8c03\u7528\u793a\u4f8b<\/h4>\n

    1.\u4e32\u53e3\u7ed3\u5408pwm\u63a7\u5236\u9707\u52a8\u9a6c\u8fbe<\/h5>\n

    #<\/span>include<\/span>"GPIO.h"<\/span><\/span>
    \n#<\/span>include<\/span>"Delay.h"<\/span><\/span>
    \n#<\/span>include<\/span>"STC8H_PWM.h"<\/span><\/span>
    \n#<\/span>include<\/span>"NVIC.h"<\/span><\/span>
    \n#<\/span>include<\/span>"Switch.h"<\/span><\/span>
    \n#<\/span>include<\/span> "UART.h"<\/span><\/span><\/p>\n

    void<\/span> GPIO_config<\/span>(<\/span>void<\/span>)<\/span> {<\/span>
    \nGPIO_InitTypeDefGPIO_InitStructure;<\/span>\/\/\u7ed3\u6784\u5b9a\u4e49<\/span>
    \n \/\/ UART1: P30 P31 \u51c6\u53cc\u5411\u53e3<\/span>
    \nGPIO_InitStructure.<\/span>Pin =<\/span> GPIO_Pin_0 |<\/span> GPIO_Pin_1;<\/span>\/\/\u6307\u5b9a\u8981\u521d\u59cb\u5316\u7684IO,<\/span>
    \nGPIO_InitStructure.<\/span>Mode =<\/span> GPIO_PullUp;<\/span>\/\/\u6307\u5b9aIO\u7684\u8f93\u5165\u6216\u8f93\u51fa\u65b9\u5f0f,GPIO_PullUp,GPIO_HighZ,GPIO_OUT_OD,GPIO_OUT_PP<\/span>
    \nGPIO_Inilize<\/span>(<\/span>GPIO_P3,<\/span> &<\/span>GPIO_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316<\/span><\/p>\n

    \/\/ P01 \u63a8\u633d\u8f93\u51fa<\/span>
    \nGPIO_InitStructure.<\/span>Pin =<\/span> GPIO_Pin_1;<\/span>\/\/\u6307\u5b9a\u8981\u521d\u59cb\u5316\u7684IO,<\/span>
    \nGPIO_InitStructure.<\/span>Mode =<\/span> GPIO_OUT_PP;<\/span>\/\/\u6307\u5b9aIO\u7684\u8f93\u5165\u6216\u8f93\u51fa\u65b9\u5f0f,GPIO_PullUp,GPIO_HighZ,GPIO_OUT_OD,GPIO_OUT_PP<\/span>
    \nGPIO_Inilize<\/span>(<\/span>GPIO_P0,<\/span> &<\/span>GPIO_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316<\/span>
    \n}<\/span><\/p>\n

    \/\/ 1000\u4e3a\u9891\u7387，1\u79d2\u949f\u6267\u884c1000\u6b21<\/span>
    \n#<\/span>define<\/span> PERIOD<\/span> (<\/span>MAIN_Fosc \/<\/span> 1000<\/span>)<\/span><\/span><\/span><\/p>\n

    void<\/span>PWM_config<\/span>(<\/span>void<\/span>)<\/span>
    \n{<\/span>
    \nPWMx_InitDefinePWMx_InitStructure;<\/span><\/p>\n

    \/\/ \u914d\u7f6ePWM6<\/span>
    \nPWMx_InitStructure.<\/span>PWM_Mode =<\/span> CCMRn_PWM_MODE1;<\/span>\/\/\u6a21\u5f0f,CCMRn_FREEZE,CCMRn_MATCH_VALID,CCMRn_MATCH_INVALID,CCMRn_ROLLOVER,CCMRn_FORCE_INVALID,CCMRn_FORCE_VALID,CCMRn_PWM_MODE1,CCMRn_PWM_MODE2<\/span>
    \nPWMx_InitStructure.<\/span>PWM_Duty =<\/span> 0<\/span>;<\/span>\/\/PWM\u5360\u7a7a\u6bd4\u65f6\u95f4, 0~Period<\/span>
    \nPWMx_InitStructure.<\/span>PWM_EnoSelect =<\/span> ENO6P;<\/span>\/\/\u8f93\u51fa\u901a\u9053\u9009\u62e9,ENO1P,ENO1N,ENO2P,ENO2N,ENO3P,ENO3N,ENO4P,ENO4N \/ ENO5P,ENO6P,ENO7P,ENO8P<\/span>
    \nPWM_Configuration<\/span>(<\/span>PWM6,<\/span> &<\/span>PWMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316PWM, PWMA,PWMB<\/span><\/p>\n

    \/\/ \u914d\u7f6ePWMB<\/span>
    \nPWMx_InitStructure.<\/span>PWM_Period =<\/span> PERIOD –<\/span> 1<\/span>;<\/span>\/\/\u5468\u671f\u65f6\u95f4, 0~65535<\/span>
    \nPWMx_InitStructure.<\/span>PWM_DeadTime =<\/span> 0<\/span>;<\/span>\/\/\u6b7b\u533a\u53d1\u751f\u5668\u8bbe\u7f6e, 0~255<\/span>
    \nPWMx_InitStructure.<\/span>PWM_MainOutEnable=<\/span> ENABLE;<\/span>\/\/\u4e3b\u8f93\u51fa\u4f7f\u80fd, ENABLE,DISABLE<\/span>
    \nPWMx_InitStructure.<\/span>PWM_CEN_Enable =<\/span> ENABLE;<\/span>\/\/\u4f7f\u80fd\u8ba1\u6570\u5668, ENABLE,DISABLE<\/span>
    \nPWM_Configuration<\/span>(<\/span>PWMB,<\/span> &<\/span>PWMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316PWM\u901a\u7528\u5bc4\u5b58\u5668, PWMA,PWMB<\/span><\/p>\n

    \/\/ \u5207\u6362PWM\u901a\u9053<\/span>
    \nPWM6_SW<\/span>(<\/span>PWM6_SW_P01)<\/span>;<\/span>\/\/PWM6_SW_P21,PWM6_SW_P54,PWM6_SW_P01,PWM6_SW_P75<\/span><\/p>\n

    \/\/ \u521d\u59cb\u5316PWMB\u7684\u4e2d\u65ad<\/span>
    \nNVIC_PWM_Init<\/span>(<\/span>PWMB,<\/span>DISABLE,<\/span>Priority_0)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    void<\/span> UART_config<\/span>(<\/span>void<\/span>)<\/span> {<\/span>
    \n \/\/ >>> \u8bb0\u5f97\u6dfb\u52a0 NVIC.c, UART.c, UART_Isr.c <<<<\/span>
    \n COMx_InitDefineCOMx_InitStructure;<\/span>\/\/\u7ed3\u6784\u5b9a\u4e49<\/span>
    \n COMx_InitStructure.<\/span>UART_Mode =<\/span> UART_8bit_BRTx;<\/span>\/\/\u6a21\u5f0f, UART_ShiftRight,UART_8bit_BRTx,UART_9bit,UART_9bit_BRTx<\/span>
    \n COMx_InitStructure.<\/span>UART_BRT_Use =<\/span> BRT_Timer1;<\/span>\/\/\u9009\u62e9\u6ce2\u7279\u7387\u53d1\u751f\u5668, BRT_Timer1, BRT_Timer2 (\u6ce8\u610f: \u4e32\u53e32\u56fa\u5b9a\u4f7f\u7528BRT_Timer2)<\/span>
    \n COMx_InitStructure.<\/span>UART_BaudRate =<\/span> 115200ul<\/span>;<\/span>\/\/\u6ce2\u7279\u7387, \u4e00\u822c 110 ~ 115200<\/span>
    \n COMx_InitStructure.<\/span>UART_RxEnable =<\/span> ENABLE;<\/span>\/\/\u63a5\u6536\u5141\u8bb8, ENABLE\u6216DISABLE<\/span>
    \n COMx_InitStructure.<\/span>BaudRateDouble =<\/span> DISABLE;<\/span>\/\/\u6ce2\u7279\u7387\u52a0\u500d, ENABLE\u6216DISABLE<\/span>
    \n UART_Configuration<\/span>(<\/span>UART1,<\/span> &<\/span>COMx_InitStructure)<\/span>;<\/span>\/\/\u521d\u59cb\u5316\u4e32\u53e31 UART1,UART2,UART3,UART4<\/span><\/p>\n

    NVIC_UART1_Init<\/span>(<\/span>ENABLE,<\/span>Priority_1)<\/span>;<\/span>\/\/\u4e2d\u65ad\u4f7f\u80fd, ENABLE\/DISABLE; \u4f18\u5148\u7ea7(\u4f4e\u5230\u9ad8) Priority_0,Priority_1,Priority_2,Priority_3<\/span>
    \n UART1_SW<\/span>(<\/span>UART1_SW_P30_P31)<\/span>;<\/span>\/\/ \u5f15\u811a\u9009\u62e9, UART1_SW_P30_P31,UART1_SW_P36_P37,UART1_SW_P16_P17,UART1_SW_P43_P44<\/span>
    \n}<\/span><\/p>\n

    void<\/span> on_uart1_recv<\/span>(<\/span>u8 buf1)<\/span> {<\/span>
    \n \/\/ \u9759\u6001\u53d8\u91cf，\u53ea\u4f1a\u521d\u59cb\u53161\u6b21，\u4e0d\u91ca\u653e<\/span>
    \n static<\/span> PWMx_Duty duty;<\/span> \/\/ \u5360\u7a7a\u6bd4\u7ed3\u6784\u4f53\u53d8\u91cf<\/span>
    \n static<\/span> char<\/span> d =<\/span> 100<\/span>;<\/span><\/p>\n

    \/\/ \u4e32\u53e3\u4e0d\u65ad\u63a5\u6536\u52300x1，\u9707\u52a8\u9010\u6e10\u51cf\u5f31，\u5982\u679c\u662f\u505c\u6b62，\u9707\u52a8\u5f3a\u5ea6\u4ece\u6700\u5f3a\u7684\u6a21\u5f0f\u91cd\u6765<\/span>
    \n if<\/span> (<\/span>buf1 ==<\/span> 0x01<\/span>)<\/span> {<\/span> \/\/ \u51cf\u5c11\u5360\u7a7a\u6bd4<\/span>
    \n d -=<\/span> 5<\/span>;<\/span>
    \n if<\/span> (<\/span>d <<\/span> 0<\/span>)<\/span> {<\/span> \/\/ < 0\u65f6，\u91cd\u65b0\u5f00\u59cb<\/span>
    \n d =<\/span> 100<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    printf<\/span>(<\/span>"d = %d\\\\n"<\/span>,<\/span> (<\/span>int<\/span>)<\/span>d)<\/span>;<\/span><\/p>\n

    \/\/ \u8bbe\u7f6e\u6bd4\u4f8b\u6570\u5b57<\/span>
    \n duty.<\/span>PWM6_Duty =<\/span> d *<\/span> PERIOD \/<\/span> 100.0<\/span>;<\/span>
    \n \/\/ \u66f4\u65b0\u5360\u7a7a\u6bd4<\/span>
    \n UpdatePwm<\/span>(<\/span>PWM6,<\/span> &<\/span>duty)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    void<\/span> main<\/span>(<\/span>)<\/span> {<\/span>
    \n u8 d =<\/span> 0<\/span>,<\/span> i;<\/span><\/p>\n

    EAXSFR<\/span>(<\/span>)<\/span>;<\/span>\/* \u6269\u5c55\u5bc4\u5b58\u5668\u8bbf\u95ee\u4f7f\u80fd *\/<\/span>
    \n \/\/ IO\u914d\u7f6e<\/span>
    \n GPIO_config<\/span>(<\/span>)<\/span>;<\/span>
    \n PWM_config<\/span>(<\/span>)<\/span>;<\/span>
    \n UART_config<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u5f00\u542f\u5168\u5c40\u4e2d\u65ad<\/span>
    \n EA =<\/span> 1<\/span>;<\/span><\/p>\n

    while<\/span> (<\/span>1<\/span>)<\/span> {<\/span>
    \n delay_ms<\/span>(<\/span>20<\/span>)<\/span>;<\/span><\/p>\n

    if<\/span>(<\/span>COM1.<\/span>RX_TimeOut ><\/span> 0<\/span>)<\/span> {<\/span>
    \n \/\/\u8d85\u65f6\u8ba1\u6570<\/span>
    \n if<\/span>(<\/span>—<\/span>COM1.<\/span>RX_TimeOut ==<\/span> 0<\/span>)<\/span> {<\/span>
    \n if<\/span>(<\/span>COM1.<\/span>RX_Cnt ><\/span> 0<\/span>)<\/span> {<\/span>
    \n for<\/span>(<\/span>i=<\/span>0<\/span>;<\/span> i<<\/span>COM1.<\/span>RX_Cnt;<\/span> i++<\/span>)<\/span>{<\/span>
    \n \/\/ RX1_Buffer[i]\u5b58\u7684\u662f\u63a5\u6536\u7684\u6570\u636e，\u5199\u51fa\u7528 TX1_write2buff<\/span>
    \n \/\/ TODO: \u505a\u5177\u4f53\u7684\u903b\u8f91<\/span>
    \n TX1_write2buff<\/span>(<\/span>RX1_Buffer[<\/span>i]<\/span>)<\/span>;<\/span> \/\/ \u539f\u6570\u636e\u53d1\u9001<\/span><\/p>\n

    on_uart1_recv<\/span>(<\/span>RX1_Buffer[<\/span>i]<\/span>)<\/span>;<\/span><\/p>\n

    }<\/span>
    \n }<\/span>
    \n COM1.<\/span>RX_Cnt =<\/span> 0<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span><\/p>\n

    }<\/span>
    \n}<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

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