IIC分析和总结分析和总结.docx

#include stm32f10x_lib.h #include I2C_EE.h /* Private typedef */ typedef enum {FAILED = 0, PASSED = !FAILED} TestStatus; // 定义枚举变量 TestStatus; /* Private define */ #define countof(a) (sizeof(a) / sizeof(*(a))) #define EEPROM_WriteAddress1 0x5 #define EEPROM_ReadAddress1 0x5 #define BufferSize1 (countof(Tx1_Buffer)-1) #define BufferSize2 (countof(Tx2_Buffer)-1) #define EEPROM_WriteAddress2 (EEPROM_WriteAddress1 + BufferSize1) #define EEPROM_ReadAddress2 (EEPROM_ReadAddress1 + BufferSize1) /* Private macro */ u8 Tx1_Buffer[] = STM32F10x I2C Firmware ; u8 Tx2_Buffer[] = Library Example */; u8 Rx_Buffer[BufferSize1 + BufferSize2], Rx1_Buffer[BufferSize1], Rx2_Buffer[BufferSize2]; volatile TestStatus TransferStatus1 = FAILED, TransferStatus2 = FAILED; /* Private variables */ /* Private function prototypes */ void Delay_Ms(u16 time); void RCC_Configuration(void); void GPIO_Configuration(void); void NVIC_Configuration(void); TestStatus Buffercmp(u8* pBuffer1, u8* pBuffer2, u16 BufferLength); extern void lcd_init (void); extern void lcd_clear (void); extern void lcd_putchar (char c); extern void set_cursor (int column, int line); extern void lcd_print (char *string); extern void lcd_bargraph (int pos_x, int pos_y, int value); // STM32 Initialization /* Private functions */ /****************************************************************************** * Function Name : main Description : Main program. Input : None Output : None Return : None ******************************************************************************* / int main(void) { #ifdef DEBUG debug(); #endif u8 key1,key2; u8 buf,lcd[5]; /* System Clocks Configuration */ RCC_Configuration(); /* NVIC configuration */ NVIC_Configuration(); /* Configure the GPIOs */ GPIO_Configuration(); /* Initialize the I2C EEPROM driver */ I2C_EE_Init(); I2C_EE_BufferRead(Rx1_Buffer, EEPROM_ReadAddress1, BufferSize1); lcd_init(); lcd_clear(); lcd_print_S(STM32_I2C !); Delay_Ms(10); while (1) { key1 = GPIO_ReadInputDataBit(GPIOA,GP