Problems in programming Flash

marchè — Wed, 14 Jun 2006 16:08:58 GMT

Hi... Can you help me?

I have still some problems in programming Flash memory.

I'm using Metrowerks Codewarriors and the HCS12 CPU (the devise is the MC9S12A256BCFU with 256K of banked flash memory).

I have to program the flash memory (for the Bootloader) and I'm writing in C.

The function that I use is:

void ProgramWord( int page, int block, unsigned int prg_address, unsigned int value)

{ unsigned int* address=(unsigned int*)prg_address;

FCNFG_BKSEL=block;

PPAGE=page;

while ( FSTAT_CBEIF==0 );

*address=value;

FCMD=0x20;

FSTAT_CBEIF=1;

__asm nop;

if ( FSTAT_ACCERR==1 || FSTAT_PVIOL==1 ) flash_errors++;

}

Thank you for your help......

Message Edited by march� on 2006-06-14 04:10 AM

Re: Problems in programming Flash

Sten — Thu, 15 Jun 2006 00:12:29 GMT

I had to replace the CBEIF-check with a check of the CCIF-bit instead.

marchè — Fri, 16 Jun 2006 13:49:24 GMT

Thanks... I have found the bug.....