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First attempt at supporting STK500 firmware past 1.10. Thanks to 

Jason Kyle for the needed protocol information.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@248 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
bdean 2003-03-04 02:03:11 +00:00
parent b03e04dfe1
commit e6c66498fa
1 changed files with 101 additions and 0 deletions
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101
stk500.c
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@ -48,6 +48,9 @@ extern char * progname;
extern int do_cycles;
static int stk500_getparm(PROGRAMMER * pgm, unsigned parm, unsigned * value);
static int stk500_send(PROGRAMMER * pgm, char * buf, int buflen)
{
struct timeval timeout;
@ -421,6 +424,70 @@ static void stk500_powerdown(PROGRAMMER * pgm)
}
static int stk500_set_extended_parms(PROGRAMMER * pgm, int n,
unsigned char * cmd)
{
unsigned char buf[16];
int tries=0;
int i;
retry:
tries++;
buf[0] = Cmnd_STK_SET_DEVICE_EXT;
for (i=0; i<n; i++) {
buf[1+i] = cmd[i];
}
i++;
buf[i] = Sync_CRC_EOP;
stk500_send(pgm, buf, i+1);
stk500_recv(pgm, buf, 1);
if (buf[0] == Resp_STK_NOSYNC) {
if (tries > 33) {
fprintf(stderr, "%s: stk500_set_extended_parms(): can't get into sync\n",
progname);
return -1;
}
stk500_getsync(pgm);
goto retry;
}
else if (buf[0] != Resp_STK_INSYNC) {
fprintf(stderr,
"%s: stk500_set_extended_parms(): protocol error, "
"expect=0x%02x, resp=0x%02x\n",
progname, Resp_STK_INSYNC, buf[0]);
return -1;
}
stk500_recv(pgm, buf, 1);
if (buf[0] == Resp_STK_OK) {
return 0;
}
else if (buf[0] == Resp_STK_NODEVICE) {
fprintf(stderr, "%s: stk500_set_extended_parms(): no device\n",
progname);
return -1;
}
if(buf[0] == Resp_STK_FAILED)
{
fprintf(stderr,
"%s: stk500_set_extended_parms(): failed to set extended "
"device programming parameters\n",
progname);
return -1;
}
fprintf(stderr, "%s: stk500_set_extended_parms(): unknown response=0x%02x\n",
progname, buf[0]);
return -1;
}
/*
* initialize the AVR device and prepare it to accept commands
*/
@ -429,6 +496,15 @@ static int stk500_initialize(PROGRAMMER * pgm, AVRPART * p)
unsigned char buf[32];
AVRMEM * m;
int tries;
unsigned maj, min;
int rc;
int do_extparms = 0;
stk500_getparm(pgm, Parm_STK_SW_MAJOR, &maj);
stk500_getparm(pgm, Parm_STK_SW_MINOR, &min);
if ((maj > 1) || ((maj == 1) && (min > 10)))
do_extparms = 1;
tries = 0;
@ -550,6 +626,31 @@ static int stk500_initialize(PROGRAMMER * pgm, AVRPART * p)
return -1;
}
if (do_extparms) {
buf[0] = 5;
/*
* m is currently pointing to eeprom memory if the part has it
*/
if (m)
buf[1] = m->page_size;
else
buf[1] = 0;
buf[2] = p->pagel;
buf[3] = p->bs2;
if (p->reset_disposition == RESET_DEDICATED)
buf[4] = 0;
else
buf[4] = 1;
rc = stk500_set_extended_parms(pgm, 5, buf);
if (rc) {
fprintf(stderr, "%s: stk500_initialize(): failed\n", progname);
exit(1);
}
}
return pgm->program_enable(pgm, p);
}