hal库i2c应用实例
时间: 2023-09-04 17:06:26 浏览: 55
以下是一个使用HAL库进行I2C通信的示例:
```c
#include "stm32f4xx_hal.h"
#define I2C_ADDRESS 0x50
I2C_HandleTypeDef hi2c;
void I2C_Init(void)
{
hi2c.Instance = I2C1;
hi2c.Init.ClockSpeed = 100000;
hi2c.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c.Init.OwnAddress1 = 0;
hi2c.Init.OwnAddress2 = 0;
hi2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
HAL_I2C_Init(&hi2c);
}
void I2C_Write(uint8_t* data, uint16_t dataSize)
{
HAL_I2C_Master_Transmit(&hi2c, I2C_ADDRESS, data, dataSize, HAL_MAX_DELAY);
}
void I2C_Read(uint8_t* data, uint16_t dataSize)
{
HAL_I2C_Master_Receive(&hi2c, I2C_ADDRESS, data, dataSize, HAL_MAX_DELAY);
}
int main(void)
{
HAL_Init();
SystemClock_Config();
I2C_Init();
uint8_t sendData = {0x01, 0x02, 0x03};
uint8_t receiveData