clm32003芯片HAL库iic接口
时间: 2023-07-29 15:13:31 浏览: 113
CLM32003芯片是一款基于ARM Cortex-M3内核的单片机,其HAL库提供了丰富的外设驱动接口,包括I2C接口。下面是使用HAL库的I2C接口进行数据传输的示例代码:
1. 初始化I2C接口
```c
I2C_HandleTypeDef hi2c;
void MX_I2C_Init(void)
{
hi2c.Instance = I2C1;
hi2c.Init.ClockSpeed = 100000;
hi2c.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c.Init.OwnAddress1 = 0;
hi2c.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c.Init.OwnAddress2 = 0;
hi2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(&hi2c) != HAL_OK)
{
Error_Handler();
}
}
```
2. 发送数据
```c
uint8_t data = 0x55;
uint8_t address = 0x50;
if (HAL_I2C_Master_Transmit(&hi2c, address, &data, 1, HAL_MAX_DELAY) != HAL_OK)
{
Error_Handler();
}
```
3. 接收数据
```c
uint8_t data;
uint8_t address = 0x50;
if (HAL_I2C_Master_Receive(&hi2c, address, &data, 1, HAL_MAX_DELAY) != HAL_OK)
{
Error_Handler();
}
```
以上代码仅供参考,具体实现需要根据具体应用场景进行调整。
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