UART缓冲区问题

我已经配置了缓冲器操作的UART，缓冲器大小为128，运行在57.6kbPs。使用UARTHIPPARTRAIL，我发送多于几个字符的问题。
在5个字符中，它们都被正确发送，6个字符中断。看来这个问题与中断有关。只要UARTHI PUCHCHAR例程将字符直接放入PSoC UART发送数据寄存器，就发送字符。如果UARTHIPPUCHAR例程将字符放置到缓冲区中，则缓冲区继续填充，并且没有一个字符被发送。UARTHARTXBuffrError增量正确，UARTHARTX缓冲区读取保持在零。
TX-on上的FIFO空中断被打开，似乎中断只是不开机。
有什么想法吗？



     以下为原文
  I have configured the UART for Buffered operation with a buffer size of 128 running at 57.6Kbps.  Using UART_PutArray I have issues sending more than a few characters.
    At 5 characters, they are all sent correctly, and 6 breaks it.  It looks as if the problem is related to interrupts.  As long as the UART_PutChar routine puts the character directly into the PSOC UART send data register the character are sent.  If the UART_PutChar routine places the character into the buffer then the buffer continues to fill and none of the characters are sent.  The UART_TxBufferWrite increments correctly and the UART_TxBuffer Read stays at zero.
    The TX - On FIFO Empty interrupt is turned on and it seems like the interrupt is just not firing.
    Any Ideas?