cc2530 zigbee-zha修改支持串口1位置1 P0_4 P0_5

    一个项目上用到CC2530的P0_4 P0_5作为串口，但是默认的zha协议栈里只支持串口0备用位置1和串口2备用位置2，这就坑爹了。经过一番代码搜索发现是可以修改代码以支持串口2备用位置1的。

    首先增加预定义(不修改也行，直接根据已有的定义修改)

    ZTOOL_P3

    #if HAL_DMA
    #if (defined ZAPP_P2) || (defined ZTOOL_P2)
    #define HAL_UART_DMA  2
    #elif (defined ZTOOL_P3)
    #define HAL_UART_DMA  3
    #else
    #define HAL_UART_DMA  1
    #endif

    #define HAL_UART_PORT_3   0x03

    修改文件：Components\hal\target\CC2530EB\_hal_uart_dma.c

#if (HAL_UART_DMA == 1)
  #if defined ZTOOL_P1_ALT2
    #define HAL_UART_PERCFG_BIT        0x01         // USART0 on P0, Alt-1; so clear this bit.
    #define HAL_UART_Px_RX_TX          0x30         // Peripheral I/O Select for Rx/Tx.
    #define HAL_UART_Px_RTS            0x08         // Peripheral I/O Select for RTS.
    #define HAL_UART_Px_CTS            0x04         // Peripheral I/O Select for CTS.
  #else
    #define HAL_UART_PERCFG_BIT        0x01         // USART0 on P0, Alt-1; so clear this bit.
    #define HAL_UART_Px_RX_TX          0x0C         // Peripheral I/O Select for Rx/Tx.
    #define HAL_UART_Px_RTS            0x20         // Peripheral I/O Select for RTS.
    #define HAL_UART_Px_CTS            0x10         // Peripheral I/O Select for CTS.
  #endif
#elif (HAL_UART_DMA == 2)
  #define HAL_UART_PERCFG_BIT        0x02         // USART1 on P1, Alt-2; so set this bit.
  #define HAL_UART_Px_RTS            0x20         // Peripheral I/O Select for RTS.
  #define HAL_UART_Px_CTS            0x10         // Peripheral I/O Select for CTS.
  #define HAL_UART_Px_RX_TX          0xC0         // Peripheral I/O Select for Rx/Tx.
#else
  #define HAL_UART_PERCFG_BIT        0x02         // USART1 on P1, Alt-2; so set this bit.
  #define HAL_UART_Px_RTS            0x20         // Peripheral I/O Select for RTS.
  #define HAL_UART_Px_CTS            0x10         // Peripheral I/O Select for CTS.
  #define HAL_UART_Px_RX_TX          0x30         // Peripheral I/O Select for Rx/Tx.
#endif




static void HalUARTInitDMA(void)
{
  halDMADesc_t *ch;

  P2DIR &= ~P2DIR_PRIPO;
  P2DIR |= HAL_UART_PRIPO;

#if (HAL_UART_DMA == 1)
  #if defined(ZTOOL_P1_ALT2)
      PERCFG |= HAL_UART_PERCFG_BIT;	 // Set UART1 I/O to Alt. 2 location on P1.
  #else
      PERCFG &= ~HAL_UART_PERCFG_BIT;	 // Set UART0 I/O to Alt. 1 location on P0.
  #endif
#elif (HAL_UART_DMA == 2)
    PERCFG |= HAL_UART_PERCFG_BIT;	   // Set UART1 I/O to Alt. 2 location on P1.
#else 
    PERCFG &= ~HAL_UART_PERCFG_BIT;	   // Set UART1 I/O to Alt. 1 location on P1.
#endif
    PxSEL  |= HAL_UART_Px_RX_TX;	   // Enable Tx and Rx on P1.
    ADCCFG &= ~HAL_UART_Px_RX_TX;	   // Make sure ADC doesnt use this.
    UxCSR = CSR_MODE;				   // Mode is UART Mode.
    UxUCR = UCR_FLUSH;				   // Flush it.

    .......
    .......
}

主要就是修改这里，剩下串口的用法就和使用串口0一样了。

    

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