ADS下的串口配置
def.h 中的UART寄存器定义：
#define rULCON0 (*(volatile unsigned *)0x50000000) //UART 0 Line control
#define rUCON0 (*(volatile unsigned *)0x50000004) //UART 0 Control
#define rUFCON0 (*(volatile unsigned *)0x50000008) //UART 0 FIFO control
#define rUMCON0 (*(volatile unsigned *)0x5000000c) //UART 0 Modem control
#define rUTRSTAT0 (*(volatile unsigned *)0x50000010) //UART 0 Tx/Rx status
#define rUERSTAT0 (*(volatile unsigned *)0x50000014) //UART 0 Rx error status
#define rUFSTAT0 (*(volatile unsigned *)0x50000018) //UART 0 FIFO status
#define rUMSTAT0 (*(volatile unsigned *)0x5000001c) //UART 0 Modem status
#define rUBRDIV0 (*(volatile unsigned *)0x50000028) //UART 0 Baud rate divisor
#define rULCON1 (*(volatile unsigned *)0x50004000) //UART 1 Line control
#define rUCON1 (*(volatile unsigned *)0x50004004) //UART 1 Control
#define rUFCON1 (*(volatile unsigned *)0x50004008) //UART 1 FIFO control
#define rUMCON1 (*(volatile unsigned *)0x5000400c) //UART 1 Modem control
#define rUTRSTAT1 (*(volatile unsigned *)0x50004010) //UART 1 Tx/Rx status
#define rUERSTAT1 (*(volatile unsigned *)0x50004014) //UART 1 Rx error status
#define rUFSTAT1 (*(volatile unsigned *)0x50004018) //UART 1 FIFO status
#define rUMSTAT1 (*(volatile unsigned *)0x5000401c) //UART 1 Modem status
#define rUBRDIV1 (*(volatile unsigned *)0x50004028) //UART 1 Baud rate divisor
#define rULCON2 (*(volatile unsigned *)0x50008000) //UART 2 Line control
#define rUCON2 (*(volatile unsigned *)0x50008004) //UART 2 Control
#define rUFCON2 (*(volatile unsigned *)0x50008008) //UART 2 FIFO control
#define rUMCON2 (*(volatile unsigned *)0x5000800c) //UART 2 Modem control
#define rUTRSTAT2 (*(volatile unsigned *)0x50008010) //UART 2 Tx/Rx status
#define rUERSTAT2 (*(volatile unsigned *)0x50008014) //UART 2 Rx error status
#define rUFSTAT2 (*(volatile unsigned *)0x50008018) //UART 2 FIFO status
#define rUMSTAT2 (*(volatile unsigned *)0x5000801c) //UART 2 Modem status
#define rUBRDIV2 (*(volatile unsigned *)0x50008028) //UART 2 Baud rate divisor
#ifdef __BIG_ENDIAN
#define rUTXH0 (*(volatile unsigned char *)0x50000023) //UART 0 Transmission Hold
#define rURXH0 (*(volatile unsigned char *)0x50000027) //UART 0 Receive buffer
#define rUTXH1 (*(volatile unsigned char *)0x50004023) //UART 1 Transmission Hold
#define rURXH1 (*(volatile unsigned char *)0x50004027) //UART 1 Receive buffer
#define rUTXH2 (*(volatile unsigned char *)0x50008023) //UART 2 Transmission Hold
#define rURXH2 (*(volatile unsigned char *)0x50008027) //UART 2 Receive buffer
#define WrUTXH0(ch) (*(volatile unsigned char *)0x50000023)=(unsigned char)(ch)
#define RdURXH0() (*(volatile unsigned char *)0x50000027)
#define WrUTXH1(ch) (*(volatile unsigned char *)0x50004023)=(unsigned char)(ch)
#define RdURXH1() (*(volatile unsigned char *)0x50004027)
#define WrUTXH2(ch) (*(volatile unsigned char *)0x50008023)=(unsigned char)(ch)
#define RdURXH2() (*(volatile unsigned char *)0x50008027)
#define UTXH0 (0x50000020+3) //Byte_access address by DMA
#define URXH0 (0x50000024+3)
#define UTXH1 (0x50004020+3)
#define URXH1 (0x50004024+3)
#define UTXH2 (0x50008020+3)
#define URXH2 (0x50008024+3)
#else //Little Endian
#define rUTXH0 (*(volatile unsigned char *)0x50000020) //UART 0 Transmission Hold
#define rURXH0 (*(volatile unsigned char *)0x50000024) //UART 0 Receive buffer
#define rUTXH1 (*(volatile unsigned char *)0x50004020) //UART 1 Transmission Hold
#define rURXH1 (*(volatile unsigned char *)0x50004024) //UART 1 Receive buffer
#define rUTXH2 (*(volatile unsigned char *)0x50008020) //UART 2 Transmission Hold
#define rURXH2 (*(volatile unsigned char *)0x50008024) //UART 2 Receive buffer
#define WrUTXH0(ch) (*(volatile unsigned char *)0x50000020)=(unsigned char)(ch)
#define RdURXH0() (*(volatile unsigned char *)0x50000024)
#define WrUTXH1(ch) (*(volatile unsigned char *)0x50004020)=(unsigned char)(ch)
#define RdURXH1() (*(volatile unsigned char *)0x50004024)
#define WrUTXH2(ch) (*(volatile unsigned char *)0x50008020)=(unsigned char)(ch)
#define RdURXH2() (*(volatile unsigned char *)0x50008024)
#define UTXH0 (0x50000020) //Byte_access address by DMA
#define URXH0 (0x50000024)
#define UTXH1 (0x50004020)
#define URXH1 (0x50004024)
#define UTXH2 (0x50008020)
#define URXH2 (0x50008024)
#endif
Uart.c 文件中定义串口配置函数：
//====================================================
// 语法格式：void myUart_Init(int whichuart, int baud)
// 功能描述: 对Uart进行初始化，以所需要的波特率为输入参数
// 入口参数: UART端口号 波特率
// 出口参数: 无
//=====================================================================
void myUart_Init(int pclk, int baud)
{
if (pclk == 0)
pclk = PCLK;
if(UartNum == 0) //判断是否使用UART0
{
/ /设置GPH端口为UART口
rGPHCON = rGPHCON & (~(0xffff)); //UART0: RXD0<==>GPH3 TXD0<==>GPH2
rGPHCON = rGPHCON | (0xaaa0) ;
rGPHUP = 0x0; //使能上拉功能
rUFCON0=0x00; // 不使用FIFO
rUMCON0=0x00; //不使用自动流控制
rULCON0=0x03; //不采用红外线传输模式，无奇偶校验位，1个停止位，8个数据位
rUCON0=0x245;
rUBRDIV0=( (int)(pclk/16./baud+0.5) -1 ); //根据波特率计算UBRDIV0的值
Delay(10);
}
else if(UartNum == 1)
{
rGPHCON = rGPHCON & (~(0xffff)) ; //UART1: RXD1<==>GPH5 TXD1<==>GPH4
rGPHCON = rGPHCON | (0xaaa0) ; //设置GPH端口为UART口
rGPHUP = 0x0; // 使能上拉功能
rUFCON1=0x0;
rUMCON1=0x0;
rULCON1=0x3;
rUCON1=0x245;
rUBRDIV1=( (int)(pclk/16./baud+0.5) -1 );
Delay(10);
}
}
//====================================================
// 语法格式：void myUart_SendByte(char ch)
// 功能描述: 发送字节数据
// 入口参数: 发送的字节数据
// 出口参数: 无
//====================================================================
void myUart_SendByte(char ch)
{
if (UartNum ==0)
{
if(ch=='\n')
{
while(!(rUTRSTAT0 & 0x2)); //等待，直到发送缓冲区为空
// Delay(10); //超级中断的响应速度较慢
WrUTXH0('\r'); //发送回车符
}
while(!(rUTRSTAT0 & 0x2)); //等待，直到发送缓冲区为空
// Delay(10);
WrUTXH0(ch); //发送字符
}
else
{
if(ch=='\n')
{
while(!(rUTRSTAT1 & 0x2)); //等待，直到发送缓冲区为空
// Delay(10); //等待
rUTXH1='\r';
}
while(!(rUTRSTAT1 & 0x2)); //Wait until THR is empty.
// Delay(10);
WrUTXH1(ch);
}
} | 
