isp5964.c

SM5964 ISP程序。.........

#include"isp5964.h"
#include <stdio.h>
void main(void)
{    
signed int aa,bb;
signed long cc;
float f1,f2,f3;
   system_init();

	  aa=-2048;
	  cc=aa;
	  f1=aa;
	  bb=-4096;
	  f2=bb;
	  f3=f1/f2;
	  printf("cc=%ld.\n",cc);
	  //printf("f1=%d.%d\n",(signed int)f1,(signed int)(f1*1000)%1000);
	  printf("f1=%f\n",f1);
	  printf("f2=%f\n",f2);
	  printf("f3=%f\n",f3);
   flash_isp_init();
   flash_isp_init();
   //puts("\n**Please press CR then start ISP program!\n");
   //putchar('>');
   //while(_getkey()!=0x0d);//press ENTER key
   printf("\nErasing the sycmos5964 FLASH memory...\n");
   //uart_rx_disable();
   //ES=0;
   flash_erase();
   flash_wr(0X0000,0X02); //LJMP RS232 INTERUPT23
   flash_wr(0X0001,0XF6);//F7
   flash_wr(0X0002,0X73);//73
   //ES=1;
   //uart_rx_enable();
   printf("ASCII character transmission,\n");
   printf("-8 bits,1 stop ,parity none,\n");
   printf("-XON-XOFF flow control.\n");
   printf("Please download .hex file then start ISP program.\n");
   uart_rx_enable();
   status=hex_parser();
   uart_rx_disable();
   if(status==HEX_DEC_CSERR)
   {
   flash_erase();
   flash_wr(0X0000,0X02); //LJMP ISP START
   flash_wr(0X0001,0XF6);
   flash_wr(0X0002,0XE7);
   printf("\nChecksum error:ISP program unsuccess!\n");
   }
   else
   printf("\nISP program success!\n");
   ((void(code *)())0x0000)();
}
//****************************************************************************************
void system_init(void)
{
EA=0;
P0=0XFF;
P1=0XFF;
P2=0XFF;
P3=0XFF;
TR2=0;
SCON=0x50;		//串口中断
T2CON=0x34;	//采用定时器2
RCAP2H=0xff;   //串行发射、接收波特率9.6K
RCAP2L=0XE2;//0xec;   //19.2K(12M) 18.432MHZ
TR2=1;
REN=1;
RI=0;
TI=1;
ES=1;
EA=1;
}
//*****************************************************************************************