野火野火stm32-pdf教程6-led流水灯0

1、 stm32 LED ( )偠偠偠 ST I/O I/O (1)(0) LED PC3 LED1PC4 LED2 PC5 LED3startup/start_stm32f10x_hd.c CMSIS/core_cm3.c CMSIS/system_stm32f10x.c FWlib/stm32f10x_gpio.cFWlib/stm32f10x_rcc.c:USER/main.cUSER/stm32f10x_it.c USER/led.c1 / 11fireE-MQQ313303034firest

2、 STM32 ST3.0.0 stm32 STM32 LED 偠 -LED 偠 GPIO RCC I/O stm32f10x_rcc.c stm32f10x_gpio.c I/O stm32f10x_xxx.c stm32f10x_xxx.h stm32f10x_conf.h stm32f10x_conf.h 2 / 111. */* Includes 2. Uncomment the line below to enable peripheral header file inclusion */

3、*3. /* #include stm32f10x_adc.h */4. /* #include stm32f10x_bkp.h */5. /* #include stm32f10x_can.h */6. /* #include stm32f10x_crc.h */7. /* #include stm32f10x_dac.h */8. /* #include stm32f10x_dbgmcu.h */9. /* #include stm32f10x_dma.h */10. /* #include stm32f10x_exti.h */11. /* #include stm32f10x_flas

4、h.h*/12. /* #include stm32f10x_fsmc.h */13. /* #include stm32f10x_gpio.h */14. /* #include stm32f10x_i2c.h */15. /* #include stm32f10x_iwdg.h */16. /* #include stm32f10x_pwr.h */ stm32 咬 偅, LED偠RCC GPIO I/O Warning Eror USER 3 / 11main.cstm32f10x_it.cxxx.c1. /* Includes */

5、2. /* Uncomment the line below to enable peripheral header file inclusion */3. /* #include stm32f10x_adc.h */4. /* #include stm32f10x_bkp.h */5. /* #include stm32f10x_can.h */6. /* #include stm32f10x_crc.h */7. /* #include stm32f10x_dac.h */8. /* #include stm32f10x_dbgmcu.h */9. /* #include stm32f10

6、x_dma.h */10. /* #include stm32f10x_exti.h */11. /* #include stm32f10x_flash.h*/12. /* #include stm32f10x_fsmc.h */13. #include stm32f10x_gpio.h14. /* #include stm32f10x_i2c.h */15. /* #include stm32f10x_iwdg.h */16. /* #include stm32f10x_pwr.h */17. #include stm32f10x_rcc.h18. /* #include stm32f10x

7、_rtc.h */19. /* #include stm32f10x_sdio.h */20. /* #include stm32f10x_spi.h */21. /* #include stm32f10x_tim.h */22. /* #include stm32f10x_usart.h */23. /* #include stm32f10x_wwdg.h */24. /*#include misc.h*/ /* High level functions for NVIC and SysTick (add- on to CMSIS functions) */17. /* #include s

8、tm32f10x_rcc.h */18. /* #include stm32f10x_rtc.h */19. /* #include stm32f10x_sdio.h */20. /* #include stm32f10x_spi.h */21. /* #include stm32f10x_tim.h */22. /* #include stm32f10x_usart.h */23. /* #include stm32f10x_wwdg.h */24. /*#include misc.h*/ /* High level functions for NVIC and SysTick (add-

9、on to CMSIS functions) */ stm32 main main.c c mainxx.cxxx stm32f10x_it.c M3 咬 stm32f10x_it.c USER LED main main佪 SystemInit(); 72M CPU SystemInit() system_stm32f10x.c 4 / 111. void SystemInit (void) 2. 3. /*! RCC system reset(for debug purpose) */4. /*!CR |= (uint32_t)0x00

10、000001;6./*!CFGR &= (uint32_t)0xF8FF0000;8. /*!CR &= (uint32_t)0xFEF6FFFF;1. /*2.* main 3.* 4.* 5.* 6.*/7. int main(void) 8. 9. /* 72M */10. SystemInit();11./* LED */12. LED_GPIO_Config();13. while (1)14.15.LED1( ON );/ 16.Delay(0x6FFFEF);17.LED1( OFF );/ 18.19. LED2( ON );20. Delay(0x6FFFEF);21. LE

11、D2( OFF ); 22.23. LED3( ON );24. Delay(0x6FFFEF);25. LED3( OFF );26.27. stm32 SystemInit() SetSysClock()SetSysClock()SetSysClock() system_stm32f10x.c SYSCLK_FREQ_72MHz SetSysClockTo72(); 72M 乍 偠 72M.5 / 111. /*! Uncomment the line corresponding to the desired System clock (

12、SYSCLK)2. frequency (after reset the HSI is used as SYSCLK source) */1. static void SetSysClock(void) 2. 3. #ifdef SYSCLK_FREQ_HSE4. SetSysClockToHSE();5. #elif defined SYSCLK_FREQ_20MHz6. SetSysClockTo20();7. #elif defined SYSCLK_FREQ_36MHz8. SetSysClockTo36();9. #elif defined SYSCLK_FREQ_48MHz10.

13、SetSysClockTo48();11. #elif defined SYSCLK_FREQ_56MHz12. SetSysClockTo56();13. #elif defined SYSCLK_FREQ_72MHz14. SetSysClockTo72();15. #endif 16.17. /*! If none of the define above is enabled, the HSI is used as System clock18. source (default after reset) */19. 10. /*!CR &= (uint32_t)0xFFFBFFFF;12

14、. /*!CFGR &= (uint32_t)0xFF80FFFF;14. /*!CIR = 0x00000000;16.17. /*! Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers */18. /*! Configure the Flash Latency cycles and enable prefetch buffer */19. SetSysClock();20. stm32 SetSysClockTo72() 72M ST催SetSys

15、ClockTo72)( 8M PLL 72M6 / 111. #elif defined SYSCLK_FREQ_72MHz 2. /*3. * brief Sets System clock frequency to 72MHz and configure HCLK, PCLK24. *and PCLK1 prescalers.5. * param None.6. * arg None.7. * note : This function should be used only after reset.8. * retval value: None. 9.*/10. static void S

16、etSysClockTo72(void)11. 12.IO uint32_t StartUpCounter = 0, HSEStatus = 0; 13.14./*! SYSCLK, HCLK, PCLK2 and PCLK1 configuration -*/15. /*!CR |= (uint32_t)RCC_CR_HSEON); 17.18. /*!CR & RCC_CR_HSERDY;22. StartUpCounter+;23. while(HSEStatus = 0) & (StartUpCounter != HSEStartUp_TimeOut); 24.25.if (RCC-C

17、R & RCC_CR_HSERDY) != RESET)26.27.HSEStatus = (uint32_t)0x01;28.29.else30.31.HSEStatus = (uint32_t)0x00;32. 33.34.if (HSEStatus = (uint32_t)0x01)35.36. /*!ACR |= FLASH_ACR_PRFTBE; 38.39. /*!ACR &= (uint32_t)(uint32_t)FLASH_ACR_LATENCY);41. FLASH-ACR |= (uint32_t)FLASH_ACR_LATENCY_2; 42.43. /*!CFGR |

18、= (uint32_t)RCC_CFGR_HPRE_DIV1; 45.3. /#define SYSCLK_FREQ_HSEHSE_Value4. /#define SYSCLK_FREQ_20MHz 200000005. /#define SYSCLK_FREQ_36MHz 360000006. /#define SYSCLK_FREQ_48MHz 480000007. /#define SYSCLK_FREQ_56MHz 560000008. #define SYSCLK_FREQ_72MHz 72000000 stm32 System

19、Init() LED I/O mian LED_GPIO_Config() LED_GPIO_Config() /*led.c 7 / 111. * LED_GPIO_Config2. * LED I/O 3.* 4.* 5.*/6. void LED_GPIO_Config(void) 7. 8. GPIO_InitTypeDef GPIO_InitStructure;9. RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC, ENABLE); 10.11. GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_

20、Pin_4 | GPIO_Pin_5;12. GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;46. /*!CFGR |= (uint32_t)RCC_CFGR_PPRE2_DIV1; 48.49. /*!CFGR |= (uint32_t)RCC_CFGR_PPRE1_DIV2; 51.52./*!CFGR &= (uint32_t)(uint32_t)(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_ PLLMULL);54. RCC-CFGR |= (uint32_t)(RCC_CFGR_PLL

21、SRC | RCC_CFGR_PLLMULL9);55. /*!CR |= RCC_CR_PLLON; 57.58. /*!CR & RCC_CR_PLLRDY) = 0)60.61.62. /*!CFGR &= (uint32_t)(uint32_t)(RCC_CFGR_SW);64. RCC-CFGR |= (uint32_t)RCC_CFGR_SW_PLL;65. /*!CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)0x08)0. else71. /*! If HSE fails to start-up, the applic

22、ation will have wrong clock72. configuration. User can add here some code to deal with this error */73. /*! GPIO_InitTypeDef GPIO_InitStructure 2- I/O 3- I/O 4- I/O I/O I/O I/O I/O5- 6- void GPIO_Init(GPIO_TypeDef* GPIOx,GPIO_InitTypeDef* GPIO_InitStruct) I/O 9 / 111. typedef enum 2. 3. GPIO_Speed_1

23、0MHz = 1,4. GPIO_Speed_2MHz,5. GPIO_Speed_50MHz6. GPIOSpeed_TypeDef;3. GPIO_Mode_IN_FLOATING = 0x04,/ 4. GPIO_Mode_IPD = 0x28,/ 5. GPIO_Mode_IPU = 0x48,/ 6. GPIO_Mode_Out_OD = 0x14,/ 7. GPIO_Mode_Out_PP =0x10,/ 8. GPIO_Mode_AF_OD = 0x1C,/ 9. GPIO_Mode_AF_PP = 0x18/ stm32 I

24、/O (1)(0) stm32f10x_gpio.c I/O LED_GPIO_Config() GPIO_SetBits(GPIOC, GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5); LED LED VCCI/OI/O 催()LED I/O stm32f10x_gpio.h 10 / 111. void GPIO_DeInit(GPIO_TypeDef* GPIOx);2. void GPIO_AFIODeInit(void);3. void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitSt

25、ruct);4. void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct);5. uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);6. uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx);7. uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);8. uint16_t GPIO_ReadOutputData(GPIO

26、_TypeDef* GPIOx);9. void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);10. void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);11. void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal);12. void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal);13. void GPIO_PinL

27、ockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);14. void GPIO_EventOutputConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource);15. void GPIO_EventOutputCmd(FunctionalState NewState);16. void GPIO_PinRemapConfig(uint32_t GPIO_Remap, FunctionalState NewState);17. void GPIO_EXTILineConfig(uint8_t GPIO_PortSour