STM32F050F4P6 - I2C slave error

[kidteam]

Posted on May 15, 2014 at 16:57

I am use STM32F050F4P6 as I2C slave device with address 0xC8

But it not workWhen i send 0xC8 or 0xC9 from master, STM32F0 is not ack and not workPlease help mecode main.c[CODE]#include <stm32f0xx.h>void Init(void);void Interrupt_conf(void);void I2C_Begin(void);int main(void) { Init(); Interrupt_conf(); I2C_Begin(); while(1) { } }void Interrupt_conf(void) { NVIC_InitTypeDef NVIC_InitStructure;   /* Reconfigure and enable I2C1 error interrupt to have the higher priority */ NVIC_InitStructure.NVIC_IRQChannel = I2C1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); }void Init(void) { //khoi tao I2C //=============================================================== GPIO_InitTypeDef  GPIO_InitStructure;    I2C_InitTypeDef  I2C_InitStructure; RCC_I2CCLKConfig(RCC_I2C1CLK_HSI);    // cho phep clock GPIOA    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);    /* I2C1 clock enable */    RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE); GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_1); GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_1);    /* I2C1 SDA and SCL configuration */ // SCL PA9 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3;     GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_Init(GPIOA, &GPIO_InitStructure); I2C_InitStructure.I2C_Ack = I2C_Ack_Enable; I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit; I2C_InitStructure.I2C_AnalogFilter = I2C_AnalogFilter_Disable; I2C_InitStructure.I2C_DigitalFilter = 0x00;    I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;    I2C_InitStructure.I2C_OwnAddress1 = 0xC8;    I2C_InitStructure.I2C_Timing = 0x00210507;    I2C_Init(I2C1, &I2C_InitStructure); I2C_Cmd(I2C1, ENABLE);}void I2C_Begin(void) { /* Enable Event IT needed for ADDR and STOPF events ITs */ I2C1->CR1 |= I2C_CR1_ADDRIE ; I2C1->CR1 |= I2C_CR1_STOPIE ; /* Enable Error IT */ I2C1->CR1 |= I2C_CR1_ERRIE; /* Enable Buffer IT (TXE and RXNE ITs) */ I2C1->CR1 |= I2C_CR1_TXIE; I2C1->CR1 |= I2C_CR1_RXIE;}[/CODE]code isr.c[CODE]#include <stm32f0xx.h>uint8_t tmp;uint16_t Tx_Idx1=0;uint8_t Buffer_Rx[256];uint8_t numOfSend;uint8_t countOfSend;uint8_t Buffer_Tx1[] = { 0x04, 0x11, 0x33, 0x43, \ 0x23, 0xAB, 0x03, 0x4D, 0x9D, 0x47, 0xC6, 0x1F, 0xF1, 0x6D, 0x54, 0xA8, 0xF5, 0x75, 0x36, 0x9D, \ 0x34, 0x9D, 0x24, 0xDE, 0xA2, 0x4A, 0x82, 0xA1, 0x04, 0x18, 0xD4, 0x19, 0x4C, 0xC2, 0xF3, 0x5E, \ 0xCE, 0x24, 0xB6, \ 0x23, 0x5D, 0x5B, 0x41, 0xBF, 0x5A, 0x2A, 0x95, 0x75, 0x0A, 0xD5, 0xF5, 0x34, 0xAB, 0xDE, 0x90, \ 0x48, 0xFE, 0x28, 0xF9, 0xEC, 0x9C, 0x49, 0xCE, 0x3A, 0x0F, 0xB7, 0xCD, 0x1A, 0xE7, 0x88, 0xF1, \ 0x53, 0xED, 0x2B, \ 0x04, 0x00, 0x03, 0x40, \ 0x04, 0x00, 0x03, 0x40, \ 0x04, 0x11, 0x33, 0x43, \ 0x04, 0x00, 0x03, 0x40, \ 0x04, 0x11, 0x33, 0x43, \ 0x04, 0x00, 0x03, 0x40, \ 0x04, 0x00, 0x03, 0x40, \ 0x04, 0x11, 0x33, 0x43, \ 0x04, 0x00, 0x03, 0x40, \ 0x23, 0x3F, 0x09, 0x75, 0x39, 0xC9, 0x10, 0x84, 0x7D, 0x4D, 0x24, 0x1C, 0xF2, 0x1F, 0xD5, 0xF4, \ 0xEE, 0xAB, 0x1F, 0x1B, 0xAE, 0x21, 0x4F, 0x4B, 0x65, 0x10, 0xF6, 0x16, 0xF1, 0x94, 0x5A, 0x99, \ 0xC7, 0xB5, 0x05, \ 0x04, 0x11, 0x33, 0x43, \ 0x23, 0xAD, 0xB3, 0xE6, 0x97, 0x58, 0x2C, 0x88, 0x9D, 0x7C, 0x44, 0x7A, 0x6C, 0xC0, 0xBF, 0x11, \ 0x5D, 0xD4, 0x9A, 0x9A, 0x58, 0x80, 0xB2, 0xE8, 0xAF, 0x56, 0xB6, 0xA7, 0x09, 0xB4, 0x43, 0x33, \ 0x3D, 0xA3, 0x3A, \ 0x04, 0x00, 0x03, 0x40, \ 0x23, 0x5E, 0x06, 0xB3, 0x48, 0x76, 0xB0, 0x60, 0x71, 0x27, 0x8F, 0xFC, 0x00, 0x62, 0x23, 0xBB, \ 0x69, 0x92, 0x19, 0x9F, 0x4A, 0xF2, 0xF0, 0x23, 0x21, 0xEC, 0x81, 0x45, 0x98, 0xA6, 0x3D, 0xD4, \ 0x6C, 0x7E, 0x90};//ham ngat I2C1void I2C1_IRQHandler(void) { //ham ngat I2C1 //kiem tra xem cai gi gay ra ngat uint32_t isr; isr=I2C1->ISR; //kiem tra xem co trong che do SLAVE khong //ADDRESS matched if(isr&I2C_ISR_ADDR) { //kiem tra chieu truyen du lieu if(isr&I2C_ISR_DIR) { //chieu truyen du lieu //slave truyen du lieu numOfSend=Buffer_Tx1[Tx_Idx1]; countOfSend=0; } else { //slave nhan du lieu //======================= } isr=0; } if(isr & I2C_ISR_TXE) { ++countOfSend; if(countOfSend>numOfSend) { //================================================================== I2C1->TXDR = 0xFF; } else { tmp=Buffer_Tx1[Tx_Idx1++]; I2C1->TXDR = tmp; //================================================================== } isr=0; } if(isr & I2C_ISR_RXNE) { tmp=I2C1->RXDR; isr=0; } if(isr & I2C_ISR_STOPF) { I2C1->CR1=I2C_CR1_PE; isr=0; } //kiem tra loi if(isr & I2C_ISR_ARLO) { I2C1->ICR |= I2C_ICR_ARLOCF; isr=0; } if(isr & I2C_ISR_BERR) { I2C1->ICR |= I2C_ICR_BERRCF; isr=0; } if(isr & I2C_ISR_OVR) { I2C1->ICR |= I2C_ICR_OVRCF; isr=0; } }[/CODE]