关于zigbee芯片如何用TX端口发送控制命令红外线启动测距，和接收红外RX发回来的数据。

uint16 halUartWrite(uint8 *buf, uint16 len)
{
uint16 cnt;

// Accept "all-or-none" on write request.
if (HAL_UART_ISR_TX_AVAIL() < len)
{
    return 0;
}

for (cnt = 0; cnt < len; cnt++)
{
    uartCfg.txBuf[uartCfg.txTail] =  *buf++;
    uartCfg.txMT = 0;

    if (uartCfg.txTail >= HAL_UART_ISR_TX_MAX - 1)
    {
        uartCfg.txTail = 0;
    }
    else
    {
        uartCfg.txTail++;
    }

    // Keep re-enabling ISR as it might be keeping up with this loop due to other ints.
    IEN2 |= UTX0IE;
}

return cnt;

}这是能让芯片发送命令的代码吗
uint16 halUartRead(uint8 *buf, uint16 len)
{
uint16 cnt = 0;

while ((uartCfg.rxHead != uartCfg.rxTail) && (cnt < len))
{
    *buf++ = uartCfg.rxBuf[uartCfg.rxHead++];
    if (uartCfg.rxHead >= HAL_UART_ISR_RX_MAX)
    {
        uartCfg.rxHead = 0;
    }
    cnt++;
}

return cnt;

}这是RX接收红外测距回发数据吗

问的问题都不清楚，说明你连程序流程都没搞懂。