Subject:
Re: New Command to picp
From:
Antonio Augusto Todo Bom Neto ####@####.####
Date:
6 Dec 2002 00:29:41 -0000
Message-Id: <1039134256.7951.24.camel@axc.lax>
Em Qua, 2002-12-04 às 22:58, Antonio Augusto Todo Bom Neto escreveu:
> I found the PicStart Plus command to erase flash device:
>
> 0x8f
>
> see bellow that it initialize a job to 16f873 and then just sends 0x8f
> and receive 0x8f 0x00.
>
> The same was in a 12f629 operation, but it reads the oscall before and
> re write it after.
>
>
> 16f873 operation (just the end):
>
> -----
> IRP_MJ_WRITE Length 1: 00
> IRP_MJ_WRITE Length 1: 00
> IRP_MJ_WRITE Length 1: 74
> IRP_MJ_READ Length 1: 00 --- until here, just the pic device init...
>
> IRP_MJ_WRITE Length 1: 8F --- erase flash device request
>
> IRP_MJ_READ Length 1: 8F --- reponses
> IRP_MJ_READ Length 1: 00
>
> --------
>
> I will try to implement this to software, but I don't program "C".
> I am not sure if I can do it.
It's working OK!
Below the dif file, please ignore my comments "included by Antonio" it
was just to my references when editing.
I have been tested these changes, with pic16f873, pic16f876, pic12f629,
and is operating ok.
The cool is that erase all the device is faster than a -ep.
I implemented as -ef switch, please change it if wish.
Excuse if is anything wrong, I don't program microcomputers yet, since
1992. I just program old friend Clipper Summer'87. eheh! And PICs.
Now I will to know about read DATA EEPROM and read/write ID's, I need
these instructions to factory work.
Thanks all, excuse for any boring mail.
----------- Cut Here -----------------
69,70c69
< //
< // 0.4d (20 February, 2001)
---
> //Do
152c151
< #define CMD_READ_ID 'e' // read ID locations
---
> #define CMD_READ_ID 'e' // read ID locations
161a161
> #define CMD_ERASE_FLASH 0x8f // send a erase flash device command
1212a1213,1260
> // Execute a ERASE FLASH DEVICE operation
> static bool DoEraseFlash(const PIC_DEFINITION *picDevice)
> {
> bool
> fail;
> unsigned char
> theBuffer[2];
>
> fail = false;
> theBuffer[0] = CMD_ERASE_FLASH;
> if(SendMsg(theBuffer,1,theBuffer,2))
> {
> if( (theBuffer[0] == CMD_ERASE_FLASH) && (theBuffer[1] == 0) )
> {
> if(verboseOutput)
> {
> fprintf(stdout,"Programmer response: "); // if in quiet
mode, only the values will be returned
> }
> fprintf(stdout,"0x%02x%02x ",theBuffer[0],theBuffer[1]);
> fprintf(stdout," - Erase seems ok! ");
> fprintf(stdout,"\n");
> if(!DoBlankCheck(picDevice, BLANK_PGM)) // make sure it is now
blank
> {
> fprintf(stderr,"But failed to blank check!!!\n");
> fail=true;
> }
> else
> {
> fprintf(stderr,"And blank check was OK!\n");
> fail=false;
> }
> }
> else
> {
> fprintf(stderr,"failed to erase flash device\n");
> fail = true;
> }
> }
> else
> {
> fprintf(stderr,"failed to send erase command\n");
> fail=true;
> }
> return(!fail);
> }
>
>
> //--------------------------------------------------------------------
1387a1436,1439
> case 'f': //
> fail = !DoEraseFlash(picDevice); //
> break; //
>
------ Dont cut here, you'l break your monitor --------------
Best regards,
Antonio Augusto Todo Bom Neto
LAX Eletronica e Telecomunicacoes Ltda
gEDA-BR - Users Group - http://gedabr.projetos.etc.br
Chave Publica no Site
www.keyserver.net chave de Antonio Augusto Todo Bom Neto
ou tente pelo ID 5F7C385C, ou pelo link abaixo:
http://search.keyserver.net:11371/pks/lookup?op=get&search=0x5F7C385C&template=netenextract,netennomatch,netenerror
Fingerprint = 10C2 FEF8 0462 A985 E1AF F28C C58E 4BA5 5F7C 385C
[Content type application/pgp-signature not shown. Download]
