ufmain.c

usblab usb程序开发实验 一个实例

/*
   //************************************************************************* //
   //                  
   //
   //           COPYRIGHT (c)   2006 BY FOSHAN LX.
   //                     --  ALL RIGHTS RESERVED  --
   //
   // File Name:	UFMAIN.C
   // Author:		guobin
   // Created:		2006/04/20
   // Modified:
   // Revision:		2.0
   //
   //*************************************************************************
*/

//CPU:	P89LPC932A1		8K Flash		256+512Byte	RAM
//Crystal:12MHz	Fosc=12M
//DIVM=0		CCLK=Fosc=12M
//Single INS=6M=166ns

#include <stdio.h>
#include <string.h>

#include "hardware.h"

extern	void Format_Fat16Media(void);


extern	void Format_Flash(void);

extern	unsigned char Flash_Reset(void);

extern	void ReadPage(unsigned int block, unsigned int page, unsigned char *pPage);

extern	UCHAR	xdata	Page_Buf[512];

void (*ISP)();

char putchar (char c)  {
  if (c == '\n')  {
    while (!TI);
    TI = 0;
    SBUF = 0x0d;                         /* output CR  */	
  }
  while (!TI);
  TI = 0;
  return (SBUF = c);
}

//P00(O)     P01(O)     P02(O)     P03(O)     P04(O)     P05(O)     P06(O)     P07(O)
//P10(O)     P11(I)      P12(O)     P13(I/O)  P14(I)      P15(I)      P16(O)     P17(O)
//P20(I/O)  P21(I/O)  P22(I/O)  P23(I/O)  P24(I/O)  P25(I/O)  P26(I/O)  P27(I/O)  
void	GPIO_Initial(void)
{
	P0M1=0x00;
	P0M2=0x00;
	P1M1=0x20;
	P1M2=0x00;
	P2M1=0x00;
	P2M2=0x00;
}

void	ISP_Initial(void)
{
	ISP=0x1F00;
	if(!Key)
		ISP();

	SSTAT=0xFA;
	BRGCON=0x00;
	AUXR1=0x40;
	SCON=0x50;
	BRGR1=0x04;			//cystal=12M		baund=9600(0x04d2)-----baund=cclk/((brgr1,brgr0)+16)
	BRGR0=0xD2;
	BRGCON=0x03;
}

void	main(void)
{
	unsigned int i;

	GPIO_Initial();

	ISP_Initial();	
	
	TI = 1;
	printf("PDIUSBD12 USB1.1 Study Board\n");
	printf("Study Format FAT16\n");
	
	if(Flash_Reset())
		{
		printf("\nFlash ID Read Ok\n");

		Format_Flash();

		Format_Fat16Media();

		printf("\nRead 0 page\n");
		ReadPage(0, 0, Page_Buf);
		for(i=0;i<512;i++)
			printf("%bu ",Page_Buf[i]);
		}
	else
		printf("Flash ID Read Error\n");
	while(1);

}