From 89a2c36e4c1d1ca73785740bf76a169865edb6ef Mon Sep 17 00:00:00 2001 From: Th3maz1ng Date: Thu, 22 Jul 2021 09:09:38 +0200 Subject: [PATCH] =?UTF-8?q?Mise=20=C3=A0=20jour=20de=20'README.md'?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- README.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/README.md b/README.md index 2a5beb7..8bdde6f 100644 --- a/README.md +++ b/README.md @@ -32,7 +32,7 @@ Indeed, this relay board was meant to be controled by sending very poorly design ## What I am planning to do : 1. Reverse engineer the schematic of this board (because it is not available) (DONE !) - - The schematic is now available as a pdf file in the **schematic** folder + - The [schematic](/git/Th3maz1ng/TOSR-04/src/branch/master/schematic/TOSR-04.pdf) is now available as a pdf file in the **schematic** folder 2. Find the best way to flash a custom firmware on the ATMEGA328PU (DONE !) - Check the section : **The best way to flash a firmware** section hereunder 3. Write a custom firmware for it (TO DO) @@ -43,8 +43,8 @@ Indeed after looking at the reverse engineered schematic, the SPI pins needed fo Fortunately enough, the onboard FTDI seems to be connected with the DTR line which is connected through a capacitor to the ATMEGA's reset pin that is required by the Arduino bootloader.
I will test it this weekend and keep you informed. -## But how to repurpose the removed ATMEGA328PU ? -I will try to restore the chip to a factory state by programming it with a HVPP (High Voltage Parallel Programmer) in order to reset the fuse bytes as well if they are set of course ...
+## Could the onboard ATMEGA be saved ? +I will try to restore the chip to it's factory state by programming it with a HVPP (High Voltage Parallel Programmer) in order to reset the fuse bytes as well if they are set of course ...
If I succeed, I'll explain how I did it here. ## FAQ