From bc2bda4f309fcea0ad295eb948d778177f20b300 Mon Sep 17 00:00:00 2001
From: Gyuri <33089503+gyuritill@users.noreply.github.com>
Date: Tue, 16 Feb 2021 22:35:39 +0100
Subject: [PATCH] Update README.md

---
 README.md | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index e81bded..d8423c5 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,38 @@ DCC multifunction decoder for H0 locomotives
 
 ## Install guide
 
-reset to factory
+1. Get the PCB (e.g. [JLCPCB](https://jlcpcb.com/)) and the components (e.g. [mouser](https://www.mouser.at/), [digikey](https://www.digikey.at/))
+2. Solder the components. The SOIC with exposed pad is a bit tricky, it can be soldered from the other side with a big tip and a lot of flux.
+3. Install the Arduino bootloader using the pads 5V, GND, SCK, MISO, MOSI, RST and an Arduino. [Arduino as ISP](https://www.arduino.cc/en/Tutorial/BuiltInExamples/ArduinoISP)
+4. Uncomment the line `#define RESET_FACTORY_DEFAULTS` to fill the EEPROM with the default CV values
+5. Upload the code using the pads 5V, GND, RX, TX, DTR and a USB TTL UART cable [like this](https://www.mouser.at/ProductDetail/FTDI/TTL-232R-5V-WE/?qs=OMDV80DKjRpCUAS6UR9QpQ%3D%3D)
+6. Re-comment the line `#define RESET_FACTORY_DEFAULTS` to avoid resetting to factory defaults every time.
+7. Upload the code again.
+8. Add the decoder XML file to JMRI. In DecoderPro select "File-> Import Decoder File..." and browse to the decoder [XML](JMRI_decoder_file/Public_Domain_GTI_green.xml). It will take some time, then adds the decoder definition to the database.
+9. Connect the T1 and T2 pads to the programming track of your DCC system.
+10. Add new locomotive with the "New Loco" button and then "Read type from decoder". It should detect the correct type:
+![add](JMRI_decoder_file/add.jpg)
+11. If everything is fine, you can install the decoder into your locomotive!
+### Pinout
+| Pad | Function |
+| :-- | :-- |
+| M1 | Motor 1 |
+| M2 | Motor 2 |
+| T1 | Track 1 |
+| T2 | Track 2 |
+| V+ | Positive common for function outputs (keep-alive capacitor positive) |
+| F0f | F0 function output forward (open drain) |
+| F0r | F0 function output reverse (open drain) |
+| AUXn | AUX function output n (open drain) |
+| 5V | internal microcontroller +5V supply |
+| GND | ground (keep alive capacitor negative) |
+| SCK | ISP programming clock (connect to ISP SCK) |
+| MISO | ISP programming read (connect to ISP MISO) |
+| MOSI | ISP programming write (connect to ISP MOSI) |
+| RST | ISP programming reset (connect to ISP reset output)
+| RX | serial programming receive (connect to TTL UART TX) |
+| TX | serial programming transmit (connect to TTL UART RX) |
+| DTR | serial programming reset through a 100 nF capacitor (connect to TTL UART DTR) |
 
 ## Todo list
 - [ ] CV15, CV16 decoder locking