5. 使用I2C总线空闲检查：在执行第二个操作之前，您可以检查I2C总线是否空闲。这可以通过HAL_I2C_Is...
if(hi2c->ErrorCode == HAL_I2C_ERROR_AF){ /* Process Unlocked */ __HAL_UNLOCK(hi2c);retur...
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c1) != HAL_OK) { Error_Handler(); } } void HAL_I2C_MspInit(I2C_Handl...
adress i2c1_ram_adr++; } else if(event == I2C_EVENT_SLAVE_STOP_DETECTED) { // Master has STOP sent I2C1_ClearFlag(); i2c1_mode = I2C1_MODE_WAITING; } } void I2C1_ER_IRQHandler(void) { if (I2C_GetITStatus(I2C1, I2C_IT_AF)) { I2C_ClearITPendingBit(I2C1, I2C_IT_AF); } ...
hi2c->ErrorCode = HAL_I2C_ERROR_NONE; hi2c->State = HAL_I2C_STATE_READY; hi2c->Mode = HAL_I2C_MODE_NONE; return HAL_OK; } 库函数HAL_I2C_Init()检查句柄的参数是否有效,然后再调用HAL_I2C_MspInit()(在stm32f1xx_hal_msp.c中定义)进行相关GPIO,时钟,中断方面的设置,然后才根据句柄所带的...
根据I2C协议,这个从机地址可以是*7位或10位。 在地址位之后,是传输方向的选择位,该位为0时,表示后面的数据传输方向是由主机传输至从机,即主机向从机写数据。该位为1时,则相反,即主机由从机读数据。 从机接收到匹配的地址后,主机或从机会返回一个应答(ACK)或非应答(NACK)信号,只有接收到应答信号后,主机...
Error_Handler();} /** Configure Analogue filter */ if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, ...
hi2c1.Init.GeneralCallMode=I2C_GENERALCALL_DISABLE; hi2c1.Init.NoStretchMode=I2C_NOSTRETCH_DISABLE;if(HAL_I2C_Init(&hi2c1) !=HAL_OK) { _Error_Handler(__FILE__, __LINE__); }/**Configure Analogue filter*/if(HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) !=HAL_OK)...
voidSingle_WriteI2C(uint8_t REG_Address,uint8_t REG_data){uint8_t TxData[2]={REG_Address,REG_data};while(HAL_I2C_Master_Transmit(&hi2c1,I2C1_WRITE_ADDRESS,(uint8_t*)TxData,2,1000)!=HAL_OK){if(HAL_I2C_GetError(&hi2c1)!=HAL_I2C_ERROR_AF){Error_Handler();}}} ...
{/* Error_Handler() function is called when Timeout error occurs. When Acknowledge failure occurs (Slave don't acknowledge it's address) Master restarts communication */if(HAL_I2C_GetError(&hi2c1) != HAL_I2C_ERROR_AF) {Error_Handler(); ...