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STM32H750XB_RT-THREAD/I2C—AP3216C（光照三合一）/3.AP3216C全功能例程_(硬件I2C)/User/i2c/bsp_i2c.c

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STM32H750 RTThread 例程
2025-07-21 06:34:29 +00:00
/**
******************************************************************************
* @file bsp_i2c.c
* @author fire
* @version V1.0
* @date 2019-xx-xx
* @brief I2C <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
******************************************************************************
* @attention
*
* ʵ<EFBFBD><EFBFBD>ƽ̨:Ұ<EFBFBD><EFBFBD> STM32 H750 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>̳ :http://www.firebbs.cn
* <EFBFBD>Ա<EFBFBD> :http://firestm32.taobao.com
*
******************************************************************************
*/
#include "./i2c/bsp_i2c.h"
I2C_HandleTypeDef I2C_Handle;
/**
* @brief I2C MSP Initialization
* This function configures the hardware resources used in this example:
* - Peripheral's clock enable
* - Peripheral's GPIO Configuration
* - DMA configuration for transmission request by peripheral
* - NVIC configuration for DMA interrupt request enable
* @param hi2c: I2C handle pointer
* @retval None
*/
void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
/*##-1- Enable peripherals and GPIO Clocks #################################*/
/* Enable GPIO TX/RX clock */
I2Cx_SCL_GPIO_CLK_ENABLE();
I2Cx_SDA_GPIO_CLK_ENABLE();
/* Enable I2C1 clock */
I2Cx_CLK_ENABLE();
/*##-2- Configure peripheral GPIO ##########################################*/
/* I2C TX GPIO pin configuration */
GPIO_InitStruct.Pin = I2Cx_SCL_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = I2Cx_SCL_AF;
HAL_GPIO_Init(I2Cx_SCL_GPIO_PORT, &GPIO_InitStruct);
/* I2C RX GPIO pin configuration */
GPIO_InitStruct.Pin = I2Cx_SDA_PIN;
GPIO_InitStruct.Alternate = I2Cx_SDA_AF;
HAL_GPIO_Init(I2Cx_SDA_GPIO_PORT, &GPIO_InitStruct);
/* Force the I2C peripheral clock reset */
I2Cx_FORCE_RESET() ;
/* Release the I2C peripheral clock reset */
I2Cx_RELEASE_RESET();
}
/**
* @brief I2C <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param <EFBFBD><EFBFBD>
* @retval <EFBFBD><EFBFBD>
*/
void I2C_Mode_Config(void)
{
I2Cx_CLK_ENABLE();
HAL_I2C_MspInit(&I2C_Handle);
I2C_Handle.Instance = I2Cx;
I2C_Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
I2C_Handle.Init.Timing = 0x40604E73;//100KHz
I2C_Handle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
I2C_Handle.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
I2C_Handle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
I2C_Handle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
I2C_Handle.Init.OwnAddress1 = 0 ;
I2C_Handle.Init.OwnAddress2 = 0;
/* Init the I2C */
HAL_I2C_Init(&I2C_Handle);
HAL_I2CEx_AnalogFilter_Config(&I2C_Handle, I2C_ANALOGFILTER_ENABLE);
}
/**
* @brief Manages error callback by re-initializing I2C.
* @param Addr: I2C Address
* @retval None
*/
static void I2Cx_Error(uint8_t Addr)
{
/* <20>ָ<EFBFBD>I2C<32>Ĵ<EFBFBD><C4B4><EFBFBD>ΪĬ<CEAA><C4AC>ֵ */
HAL_I2C_DeInit(&I2C_Handle);
/* <20><><EFBFBD>³<EFBFBD>ʼ<EFBFBD><CABC>I2C<32><43><EFBFBD><EFBFBD> */
I2C_Mode_Config();
}
/**
* @brief д<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD>Ľӿ<EFBFBD>
* @param slave_addr: <EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD>ַ
* @param reg_addr:<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
* @param len<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
* @param data_ptr:ָ<EFBFBD><EFBFBD>Ҫд<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @retval <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>0
*/
int Sensors_I2C_WriteRegister(unsigned char slave_addr,
unsigned char reg_addr,
unsigned short len,
unsigned char *data_ptr)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Write(&I2C_Handle, slave_addr, reg_addr, I2C_MEMADD_SIZE_8BIT,data_ptr, len,I2Cx_FLAG_TIMEOUT);
/* <20><><EFBFBD><EFBFBD>ͨѶ״̬ */
if(status != HAL_OK)
{
/* <20><><EFBFBD>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
I2Cx_Error(slave_addr);
}
while (HAL_I2C_GetState(&I2C_Handle) != HAL_I2C_STATE_READY)
{
}
/* <20><><EFBFBD><EFBFBD>SENSOR<4F>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ζ<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD> */
while (HAL_I2C_IsDeviceReady(&I2C_Handle, slave_addr, I2Cx_FLAG_TIMEOUT, I2Cx_FLAG_TIMEOUT) == HAL_TIMEOUT);
/* <20>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
while (HAL_I2C_GetState(&I2C_Handle) != HAL_I2C_STATE_READY)
{
}
return status;
}
/**
* @brief <EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD>Ľӿ<EFBFBD>
* @param slave_addr: <EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD>ַ
* @param reg_addr:<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
* @param len<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ȡ<EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>
* @param data_ptr:ָ<EFBFBD><EFBFBD>Ҫ<EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>ָ<EFBFBD><EFBFBD>
* @retval <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>0
*/
int Sensors_I2C_ReadRegister(unsigned char slave_addr,
unsigned char reg_addr,
unsigned short len,
unsigned char *data_ptr)
{
HAL_StatusTypeDef status = HAL_OK;
status =HAL_I2C_Mem_Read(&I2C_Handle,slave_addr,reg_addr,I2C_MEMADD_SIZE_8BIT,data_ptr,len,I2Cx_FLAG_TIMEOUT);
/* <20><><EFBFBD><EFBFBD>ͨѶ״̬ */
if(status != HAL_OK)
{
/* <20><><EFBFBD>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
I2Cx_Error(slave_addr);
}
while (HAL_I2C_GetState(&I2C_Handle) != HAL_I2C_STATE_READY)
{
}
/* <20><><EFBFBD><EFBFBD>SENSOR<4F>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ζ<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD> */
while (HAL_I2C_IsDeviceReady(&I2C_Handle, slave_addr, I2Cx_FLAG_TIMEOUT, I2Cx_FLAG_TIMEOUT) == HAL_TIMEOUT);
/* <20>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
while (HAL_I2C_GetState(&I2C_Handle) != HAL_I2C_STATE_READY)
{
}
return status;
}
/*********************************************END OF FILE**********************/
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