帮我看看为什么发不了数据PIC24FJ256DA210

kgdk2011

void DRV_UART1_InitializerUser(void)
{
    #define DRV_UART1_PDS 0
    #define BRG_TEMP (unsigned long)(SYS_CLK_FrequencyPeripheralGet() / (4 * (unsigned long)DRV_UART1_CONFIG_BAUD_RATE))
    #define BRG_TEMP_10 (unsigned long)(SYS_CLK_FrequencyPeripheralGet()*10 / (4 * (unsigned long)DRV_UART1_CONFIG_BAUD_RATE))
   U1STA = 0x0000;
   U1MODE = (0x8088 & 0xFFFC)| DRV_UART1_PDS;//0x8388
   // UTXEN disabled; UTXINV disabled; URXISEL RX_ONE_CHAR; ADDEN disabled; UTXISEL0 TX_ONE_CHAR; UTXBRK COMPLETED; OERR NO_ERROR_cleared;

   U1BRG = BRG_TEMP  - 1 + ((BRG_TEMP_10 - BRG_TEMP*10)+5)/10;//四舍五入

   U1STAbits.UTXEN = 1;

   drv_uart1_obj.txHead = uart1_txByteQ;
   drv_uart1_obj.txTail = uart1_txByteQ;
   drv_uart1_obj.rxHead = uart1_rxByteQ;
   drv_uart1_obj.rxTail = uart1_rxByteQ;
   drv_uart1_obj.rxStatus.s.empty = true;
   drv_uart1_obj.txStatus.s.empty = true;
   drv_uart1_obj.txStatus.s.full = false;
   drv_uart1_obj.rxStatus.s.full = false;
}
void PutChar(char txChar)
{
while(U1STAbits.UTXBF); //wait for FIFO space
U1TXREG = txChar; //put character onto UART FIFO to transmit
}//end PutChar(char txChar)

void main(void)
{
  DRV_UART1_InitializerUser();
  U1STAbits.UTXEN = 1;
  char send='a';

  while(1)
      {
   PutChar(send);  
  }
}

shaoziyang

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shaoziyang@126.com