flash.c

tms320c5402的boot c程序

#include "math.h"
#include "stdio.h"
#include "dsp.h"
extern void Init5402(void);
#define OFFSET 0x8000
unsigned int *DPTR;
unsigned int *DPTR0;
int i,j,k;
void Flash_Write(unsigned int *DPP, unsigned int DATA);
void Flash_Erase(void);
void Flash_Program(void);
unsigned int size;
void main(void)
{
Init5402();
size= sizeof (dspcode)/sizeof (dspcode[0]);
i=0;
i=0;
while(1)
{
Flash_Erase();
i=0;
i=0;
for(i=0;i<size-1;i++)
{
Flash_Program();
DPTR=(unsigned int*)(OFFSET+i);
Flash_Write(DPTR,dspcode[i]);//put mydata into myaddress
for(j=1;j<size;j++)
{;}
}
Flash_Program();
DPTR=(unsigned int*)(0xffff);
Flash_Write(DPTR,0x8000);//put mydata into myaddress
j=0;
j=0;
}
}

void Flash_Write(unsigned int *DPP,unsigned int DATA)
{
*DPP=DATA;
asm(" nop ");
}

void Flash_Erase(void)
{
DPTR=(unsigned int*)(0x555+OFFSET);
Flash_Write (DPTR,0x00AA);//1st cycle
DPTR=(unsigned int*)(0x2AA+OFFSET);
Flash_Write(DPTR,0x0055);//2 nd cycle
DPTR=(unsigned int*)(0x555+OFFSET);
Flash_Write(DPTR,0x0080);//Program command
DPTR=(unsigned int*)(0x555+OFFSET);
Flash_Write(DPTR,0x00AA);//Program command
DPTR=(unsigned int*)(0x2AA+OFFSET);
Flash_Write(DPTR,0x0055);//Program command
DPTR=(unsigned int*)(0x555+OFFSET);
Flash_Write(DPTR,0x0010);//Program command
}
void Flash_Program(void)
{
DPTR=(unsigned int*)(0x555+OFFSET);
Flash_Write (DPTR,0x00AA);//1st cycle
DPTR=(unsigned int*)(0x2AA+OFFSET);
Flash_Write(DPTR,0x0055);//2 nd cycle
DPTR=(unsigned int*)(0x555+OFFSET);
Flash_Write(DPTR,0x00A0);//Program command
}