1. 确保I2C通信初始化正确：检查I2C时钟、速率和地址设置是否正确。2. 使用HAL库的I2C通信函数：确保您...
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; 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) { ...
if(hi2c->ErrorCode == HAL_I2C_ERROR_AF){ /* Process Unlocked */ __HAL_UNLOCK(hi2c);retur...
voidHAL_I2C_MspInit(I2C_HandleTypeDef*hi2c){GPIO_InitTypeDef GPIO_InitStruct={0};if(hi2c->Instance==I2C1){// 配置GPIO__HAL_RCC_GPIOB_CLK_ENABLE();GPIO_InitStruct.Pin=GPIO_PIN_6|GPIO_PIN_7;GPIO_InitStruct.Mode=GPIO_MODE_AF_OD;GPIO_InitStruct.Pull=GPIO_NOPULL;GPIO_InitStruct.Speed=G...
Error_Handler(); } } MX_I2C1_Init调用库函数HAL_I2C_Init()(在stm32f1xx_hal_i2c.c中定义)来初始化I2C接口,需要初始化的数据已经在MX_I2C1_Init中定义了 HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c) { uint32_t freqrange = 0; ...
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); } ...
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();}}} ...
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)...
if (HAL_I2C_Init(&hi2c1) != HAL_OK){ Error_Handler();} /** Configure Analogue filter */...
加速度计、触摸屏等等,所以 I2C 是做嵌入式开发必须掌握的,STM32MP157 有 46个 I2C 接口,可以通过这 6 个 I2C 接口来连接一些 I2C 外设。正点原子的STM32MP157开发板使用 I2C5接口连接了一个距离传感器 AP3216C,本章我们就来学习如何使用STM32MP157的 I2C 5接口来驱动 AP3216C,并读取AP3216C 的传感器数据...