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Submitted by "Malte" and John McCorquodale:

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patch #7876 JTAGICE mkII fails to connect to attiny if debugwire
is enabled AND target has a very slow clock
* jtagmkII.c (jtagmkII_getsync): When leaving debugWIRE mode
temporarily, immediately retry with ISP, rather than leaving.
* stk500v2 (stk500v2_program_enable): Implemented similar logic
for the JTAGICE3.



git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1183 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
2013-05-17 16:23:55 +00:00
parent 203fe6d14a
commit 46f7b6b470
4 changed files with 40 additions and 9 deletions
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14
jtagmkII.c
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@@ -831,6 +831,8 @@ int jtagmkII_getsync(PROGRAMMER * pgm, int mode) {
if(mode < 0) return 0; // for AVR32
tries = 0;
retry:
/* Turn the ICE into JTAG or ISP mode as requested. */
buf[0] = mode;
if (jtagmkII_setparm(pgm, PAR_EMULATOR_MODE, buf) < 0) {
@@ -855,11 +857,17 @@ int jtagmkII_getsync(PROGRAMMER * pgm, int mode) {
* program.
*/
(void)jtagmkII_reset(pgm, 0x04);
if (tries++ > 3) {
fprintf(stderr,
"%s: Failed to return from debugWIRE to ISP.\n",
progname);
return -1;
}
fprintf(stderr,
"%s: Target prepared for ISP, signed off.\n"
"%s: Please restart %s without power-cycling the target.\n",
progname, progname, progname);
return JTAGII_GETSYNC_FAIL_GRACEFUL;
"%s: Now retrying without power-cycling the target.\n",
progname, progname);
goto retry;
}
} else {
return -1;