C2000使用I2C的程序实例
时间: 2024-07-24 09:01:17 浏览: 80
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C2000系列微控制器通常使用TI提供的CC253x等设备作为I2C通信控制器。在编写C2000 I2C程序时,你需要包含相关的头文件,并初始化I2C模块,然后通过发送和接收数据命令进行通信。下面是一个简单的C2000 I2C通信的程序片段示例:
```c
#include <ti/drivers/i2c.h> // 引入I2C驱动库
// 初始化I2C模块
i2cMasterHandle hI2CMaster = i2cMasterCreate(I2C_NUM); // I2C模块编号
if (hI2CMaster == NULL) {
printf("Failed to create I2C master handle.\n");
return;
}
// 设置I2C地址
uint8_t slaveAddress = 0x40; // 设备地址,这里假设是7位寻址
i2cMasterSetSlaveAddr(hI2CMaster, slaveAddress);
// 发送数据
uint8_t txBuffer[] = {0x01, 0x02, 0x03}; // 数据待传输
size_t dataLength = sizeof(txBuffer);
status_t status = i2cMasterTransmit(hI2CMaster, txBuffer, &dataLength);
if (status != I2C_MASTER_SUCCESS) {
printf("Transmission failed: %s\n", i2cMasterGetStatusString(status));
} else {
printf("Sent data successfully.\n");
}
// 接收数据
i2cMasterClearReceiveBuffer(hI2CMaster); // 清空接收缓冲区
status = i2cMasterReceive(hI2CMaster, rxBuffer, &dataLength);
if (status == I2C_MASTER_SUCCESS) {
printf("Received data: ");
for (int i = 0; i < dataLength; i++) {
printf("%02X ", rxBuffer[i]);
}
printf("\n");
}
// 关闭I2C模块
i2cMasterDelete(hI2CMaster);
```
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