From afa1bb65998a47f51051b8c7f30ca5c430991435 Mon Sep 17 00:00:00 2001 From: Thorsten von Eicken Date: Sat, 22 Oct 2016 21:26:53 -0700 Subject: [PATCH] link to avrdude 6.3 release notes for windows, closes #130 --- UC-FLASHING.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/UC-FLASHING.md b/UC-FLASHING.md index fd2ba63..9659f37 100644 --- a/UC-FLASHING.md +++ b/UC-FLASHING.md @@ -26,6 +26,10 @@ This is instead of specifying a serial port of the form /dev/ttyUSB0. Esp-link detects that avrdude starts its connection with a flash synchronization sequence and sends a reset to the AVR microcontroller so it can switch into flash programming mode. +Note for Windows users: very recent avrdude versions on Windows support the -P option, while older +ones don't. See the second-to-last bullet in the +[avrdude 6.3 release notes]http://savannah.nongnu.org/forum/forum.php?forum_id=8461). + To reprogram using the HTTP POST method you need to first issue a POST to put optiboot into programming mode: POST to `http://esp-link/pgm/sync`, this starts the process. Then check that synchronization with optiboot has been achieved by issuing a GET to the same URL