main.c

单片机和PC机串口通讯

/* 本程序写于2004年9月23日凌晨2点
 作者：孙尚新
 联系方式： 2818709199 [e-mail] */ 
#include <command.h>
main()
{
	unsigned char ch;
	long i;
	unsigned char str[100],key;
	int num_commands;
	char command[MAX_CMD_LEN];
	

	InitSerial();
	InitSerialBuffer();
	clrscr();
	PrintStr("Crystal is ");
	i = CRYSTAL;
	for(ch = 0;ch<8;ch++)
	{
		str[7-ch] = ('0'+i%10);
		i = i/10;
	}
	str[8] = (unsigned char)0;
	PrintStr(str);
	PrintStr("\r\n");
	PrintStr("Serial is ");
	i = SERBAUD;
	for(ch = 0;ch<6;ch++)
	{
		str[5-ch] = ('0'+i%10);
		i = i/10;
	}
	str[6] = (unsigned char)0;
	PrintStr(str);
	PrintStr("\n");
	PrintStr("\r\n");
	prompt();
	i = 0;
	for(;;)
	{
		 while(!getch(&key));
		if(key == BACK_KEY)
		{		
			if(i>=1)
			{
				i -= i?1:0;
				PrintChar(key);
				PrintChar(' ');
				PrintChar(key);
			}
		}
		else if(key == ENTER_KEY)
		{
			command[i] = 0;
			PrintChar('\r');
			PrintChar('\n');
			num_commands = ParseCmd(command, i);
			if(num_commands<0)
			{
				PrintStr("Erroe Command......\r\n");
				prompt();
			}
			else
			{
				prompt();
			}
			i = 0;
		}
		else
		{
			if(i<MAX_CMD_LEN-1)
			{
				command[i++] = key;
				PrintChar(key);
			}
		}				
	}
}