196 lines
6.8 KiB
C
196 lines
6.8 KiB
C
#include "McuBspI2c.h"
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#define MCU_BSP_I2C_DISABLE 0
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#define MCU_BSP_I2C_ENABLE 1
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I2C_HandleTypeDef I2cHandle2; // 使用了IIC2作为BME680的数据处理
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uint8_t I2C2InitFlag = MCU_BSP_I2C_DISABLE; // 防止挂载多个设备时，重复初始化
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int McuBspI2cInit(unsigned char I2cId)
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{
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if (I2cId == MCU_BSP_I2C2_ID){
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_DISABLE) {
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return -1;
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}
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if (I2C2InitFlag == MCU_BSP_I2C_ENABLE) {
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return 0;
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}
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I2cHandle2.Instance = I2C2;
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I2cHandle2.Init.ClockSpeed = MCU_BSP_I2C2_CLOCKSPEED;
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I2cHandle2.Init.DutyCycle = MCU_BSP_I2C2_DUTYCYCLE;
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I2cHandle2.Init.OwnAddress1 = MCU_BSP_I2C2_I2C_ADDRESS1;
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I2cHandle2.Init.AddressingMode = MCU_BSP_I2C2_ADDRESS_MODE;
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I2cHandle2.Init.DualAddressMode = MCU_BSP_I2C2_DUALADDRESS_MODE;
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I2cHandle2.Init.OwnAddress2 = MCU_BSP_I2C2_I2C_ADDRESS2;
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I2cHandle2.Init.GeneralCallMode = MCU_BSP_I2C2_GENERALCALL_MODE;
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I2cHandle2.Init.NoStretchMode = MCU_BSP_I2C2_NOSTRETCH_MODE;
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HAL_I2C_DeInit(&I2cHandle2);
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if(HAL_I2C_Init(&I2cHandle2) != HAL_OK) {
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return -1;
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}
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I2C2InitFlag = MCU_BSP_I2C_ENABLE;
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} else {
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return -1;
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}
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return 0;
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}
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int McuBspI2cSendData(unsigned char type, unsigned char I2cId, unsigned short DevAddress, unsigned short MemAddress,
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unsigned short MemAddSize, unsigned char *pData, unsigned short Size)
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{
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if (type == MCU_BSP_I2C_MASTER) {
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if(I2cId == MCU_BSP_I2C2_ID) {
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_DISABLE) {
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return -1;
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}
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if (HAL_OK != HAL_I2C_Master_Transmit(&I2cHandle2, DevAddress, pData, Size, 300)) {
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return -1;
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}
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} else {
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return -1;
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}
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} else if (type == MCU_BSP_I2C_SALVE) {
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if(I2cId == MCU_BSP_I2C2_ID) {
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_DISABLE) {
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return -1;
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}
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if (HAL_OK != HAL_I2C_Slave_Transmit(&I2cHandle2, pData, Size, 300)) {
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return -1;
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}
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} else {
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return -1;
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}
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} else if (type == MCU_BSP_I2C_REG) {
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if(I2cId == MCU_BSP_I2C2_ID) {
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_DISABLE) {
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return -1;
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}
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if (HAL_OK != HAL_I2C_Mem_Write(&I2cHandle2, DevAddress, MemAddress, MemAddSize, pData, Size, 300)) {
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return -1;
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}
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} else {
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return -1;
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}
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} else {
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return -1;
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}
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return 0;
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}
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/* IIC接收函数 */
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int McuBspI2cRecvData(uint8_t type, uint8_t I2cId, uint16_t DevAddress, uint16_t MemAddress,
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uint16_t MemAddSize, uint8_t *pData, uint16_t Size)
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{
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if (type == MCU_BSP_I2C_MASTER) {
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if(I2cId == MCU_BSP_I2C2_ID) {
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_DISABLE) {
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return -1;
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}
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if (HAL_OK != HAL_I2C_Master_Receive(&I2cHandle2, DevAddress, pData, Size, 300)) {
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return -1;
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}
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} else {
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return -1;
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}
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} else if (type == MCU_BSP_I2C_SALVE) {
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if(I2cId == MCU_BSP_I2C2_ID) {
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_DISABLE) {
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return -1;
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}
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if (HAL_OK != HAL_I2C_Slave_Receive(&I2cHandle2, pData, Size, 300)) {
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return -1;
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}
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} else {
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return -1;
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}
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} else if (type == MCU_BSP_I2C_REG) {
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if(I2cId == MCU_BSP_I2C2_ID) {
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_DISABLE) {
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return -1;
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}
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if (HAL_OK != HAL_I2C_Mem_Read(&I2cHandle2, DevAddress, MemAddress, MemAddSize, pData, Size, 300)) {
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return -1;
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}
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} else {
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return -1;
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}
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} else {
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return -1;
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}
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return 0;
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}
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void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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if (hi2c->Instance == I2C2) {
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MCU_BSP_I2C2_SCL_GPIO_CLK_ENABLE();
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MCU_BSP_I2C2_SDA_GPIO_CLK_ENABLE();
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__HAL_RCC_I2C2_CLK_ENABLE();
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GPIO_InitStruct.Pin = MCU_BSP_I2C2_SCL_GPIO_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(MCU_BSP_I2C2_SCL_GPIO, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = MCU_BSP_I2C2_SDA_GPIO_PIN;
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HAL_GPIO_Init(MCU_BSP_I2C2_SDA_GPIO, &GPIO_InitStruct);
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}
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}
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void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c)
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{
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if (hi2c->Instance == I2C2) {
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__HAL_RCC_I2C2_FORCE_RESET();
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__HAL_RCC_I2C2_RELEASE_RESET();
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__HAL_RCC_I2C2_CLK_DISABLE();
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I2C2InitFlag = MCU_BSP_I2C_DISABLE;
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HAL_GPIO_DeInit(MCU_BSP_I2C2_SCL_GPIO, MCU_BSP_I2C2_SCL_GPIO_PIN);
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HAL_GPIO_DeInit(MCU_BSP_I2C2_SDA_GPIO, MCU_BSP_I2C2_SDA_GPIO_PIN);
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}
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}
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/* IIC SLEEP */
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void McuBspI2cSleep(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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/* 由于IIC有上拉电阻，所以本身就应该设置为上拉输出 */
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if (MCU_BSP_I2C2_USE_FLAG == MCU_BSP_I2C_ENABLE) {
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if (I2C2InitFlag == MCU_BSP_I2C_ENABLE) {
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__HAL_RCC_I2C2_CLK_DISABLE();
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MCU_BSP_I2C2_SCL_GPIO_CLK_ENABLE();
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MCU_BSP_I2C2_SDA_GPIO_CLK_ENABLE();
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GPIO_InitStruct.Pin = MCU_BSP_I2C2_SCL_GPIO_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(MCU_BSP_I2C2_SCL_GPIO, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = MCU_BSP_I2C2_SDA_GPIO_PIN;
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HAL_GPIO_Init(MCU_BSP_I2C2_SDA_GPIO, &GPIO_InitStruct);
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HAL_GPIO_WritePin(MCU_BSP_I2C2_SCL_GPIO, MCU_BSP_I2C2_SCL_GPIO_PIN, GPIO_PIN_SET);
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HAL_GPIO_WritePin(MCU_BSP_I2C2_SDA_GPIO, MCU_BSP_I2C2_SDA_GPIO_PIN, GPIO_PIN_SET);
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}
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}
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}
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/* IIC WakeUp */
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void McuBspI2cWakeUp(void)
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{
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GPIO_InitTypeDef GPIO_InitStruct;
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if (I2C2InitFlag == MCU_BSP_I2C_ENABLE) {
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__HAL_RCC_I2C2_CLK_ENABLE();
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MCU_BSP_I2C2_SCL_GPIO_CLK_ENABLE();
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MCU_BSP_I2C2_SDA_GPIO_CLK_ENABLE();
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GPIO_InitStruct.Pin = MCU_BSP_I2C2_SCL_GPIO_PIN;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(MCU_BSP_I2C2_SCL_GPIO, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = MCU_BSP_I2C2_SDA_GPIO_PIN;
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HAL_GPIO_Init(MCU_BSP_I2C2_SDA_GPIO, &GPIO_InitStruct);
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}
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}
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