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Shesh. The previous commit was a little premature. Drag the 

"GO" code in again, but only activate it when programming an
Xmega device through PDI.

Wonderfully consistent tools.



git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1071 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch 2012-03-20 14:42:20 +00:00
parent 229b7cd075
commit d3a655ae58
2 changed files with 37 additions and 3 deletions
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7
ChangeLog
View File

@ -1,9 +1,10 @@
2012-03-20 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
* jtagmkII.c (jtagmkII_close): The GO command before signing off
turned out to do more harm than good; on the Xmega, it caused exactly
the opposite reaction, the CPU stopped. Even without it, after the
RESET command, the target is running already. So, drop the GO.
turned out to be not required for normal megaAVR devices, and to
cause the exact opposite (i.e. the target stopping) on Xmega
devices being programmed to JTAG. However, programming Xmega
devcies through PDI *does* need the GO command.
2012-03-20 Joerg Wunsch <j.gnu@uriah.heep.sax.de>

33
jtagmkII.c
View File

@ -1685,6 +1685,39 @@ void jtagmkII_close(PROGRAMMER * pgm)
if (verbose >= 2)
fprintf(stderr, "%s: jtagmkII_close()\n", progname);
if (pgm->flag & PGM_FL_IS_PDI) {
/* When in PDI mode, restart target. */
buf[0] = CMND_GO;
if (verbose >= 2)
fprintf(stderr, "%s: jtagmkII_close(): Sending GO command: ",
progname);
jtagmkII_send(pgm, buf, 1);
status = jtagmkII_recv(pgm, &resp);
if (status <= 0) {
if (verbose >= 2)
putc('\n', stderr);
fprintf(stderr,
"%s: jtagmkII_close(): "
"timeout/error communicating with programmer (status %d)\n",
progname, status);
} else {
if (verbose >= 3) {
putc('\n', stderr);
jtagmkII_prmsg(pgm, resp, status);
} else if (verbose == 2)
fprintf(stderr, "0x%02x (%d bytes msg)\n", resp[0], status);
c = resp[0];
free(resp);
if (c != RSP_OK) {
fprintf(stderr,
"%s: jtagmkII_close(): "
"bad response to GO command: %s\n",
progname, jtagmkII_get_rc(c));
}
}
}
buf[0] = CMND_SIGN_OFF;
if (verbose >= 2)
fprintf(stderr, "%s: jtagmkII_close(): Sending sign-off command: ",