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[avrdude-dev] avrdude 4.4.0 butterfly patch
From: |
Matthew Gream |
Subject: |
[avrdude-dev] avrdude 4.4.0 butterfly patch |
Date: |
Tue, 27 Jul 2004 12:38:56 +0100 |
Hello,
I found that avrdude 4.4.0 release under Windows XP Professional SP1 fails
to reliably connect to Butterfly. Bootloader is native Atmel (reported by
avrdude as id AVRBOOTw, type S, sw-ver 2.0, hw-ver n/a, dev code 0x75).
The following patch rectified the problem: caveat emptor.
Matthew
--- ../avrdude-4.4.0/butterfly.c 2004-07-19 06:16:15.000000000 +0100
+++ butterfly.c 2004-07-27 12:18:01.000000000 +0100
@@ -213,16 +213,23 @@
no_show_func_info();
- /* send some ESC to activate butterfly bootloader */
- butterfly_send(pgm, "\033\033\033\033", 4);
- butterfly_drain(pgm, 0);
-
- /* Get the programmer identifier. Programmer returns exactly 7 chars
- _without_ the null.*/
-
- butterfly_send(pgm, "S", 1);
- memset (id, 0, sizeof(id));
- butterfly_recv(pgm, id, sizeof(id)-1);
+ /* send ESC to activate butterfly bootloader &&
+ get the programmer identifier. Programmer returns exactly 7 chars
+ _without_ the null. */
+
+ fprintf(stderr, "Connecting to programmer: ");
+ do {
+ fprintf(stderr, ".");
+ butterfly_send(pgm, "\033", 1);
+ butterfly_drain(pgm, 0);
+ butterfly_send(pgm, "S", 1);
+ butterfly_recv(pgm, &c, 1);
+ if (c != '?') {
+ id[0] = c;
+ butterfly_recv(pgm, &id[1], sizeof(id)-2);
+ }
+ } while (c == '?');
+ fprintf(stderr, "\n");
/* Get the HW and SW versions to see if the programmer is present. */
regards,
Matthew Gream
London W2 4PS
+44 77 6969 0248
address@hidden
http://matthewgream.net
- [avrdude-dev] avrdude 4.4.0 butterfly patch,
Matthew Gream <=