test_uart1.c

arm9.rar

#include "def.h"
#include "2410addr.h"
#include "config.h"
#include "board.h"
#include "utils.h"

void Test_Uart1(void)
{
	U16 m ;
	U32 baud, rUBRDIV1_save ;
	
	printf("UART1 test, please select baud rate\n1: 9600\n2: 19200\n3: 57600\n4: 115200\n");
	
	while(1) {
		m = getch();
		if(m>='1'&&m<='4')
			break;
		if(m==ESC_KEY)
			return;
	}
	
	switch(m) {

	case '1':
		baud = 9600;
		break;
	
	case '2':
		baud = 19200;
		break;

	case '3':
		baud = 57600;
		break;

	default:
		baud = 115200;
	}
	
	printf("set UART1 baud rate to %d\n", baud);
	rUBRDIV1_save = rUBRDIV1;
	rUBRDIV1 = ((int)(GetMasterClock()/16./baud + 0.5) -1);
   
    while(1)
    {
   		m = getkey();
		if(m==ESC_KEY)
			break;
		if(m) {
			while(!(rUTRSTAT1 & 0x2)); //Wait until THR is empty.
			WrUTXH1(m);
		}			
    	if((rUTRSTAT1 & 0x1)) //Receive data ready
			putch(RdURXH1());
		//while(!(rUTRSTAT1 & 0x2)); //Wait until THR is empty.
		//WrUTXH1(0xaa);
		//Delay(2);
    }    

	rUBRDIV1 = rUBRDIV1_save;
}

static char title[] = "串口2通讯实验";
static char tip[]   = "实验串口2(UART1)通讯功能,按ESC键返回";

//Test_Q2403A_Item在prog_entry.c里被引用
TEST_PROGRAM_ITEM Test_Uart1_Item = {
				(TEST_PROGRAM)Test_Uart1, 	//入口地址
				title, 					//显示名称
				tip, 					//帮助或提示信息,可为NULL
				1};						//使用printf,puts,putch等函数时在LCD上也显示输出字符(串)