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Table of Contents
3420 Build Instructions
Programming Instructions
The process of programming the board is a two step process. First we program the bootloader onto the STM32 using the STM32CubeProgrammer. Then we program the 3420 Software using Monex.
You will need:
- Monex3.11
- STM32CubeProgrammer
- Populated 3420 PCB
- ST Link
- NMEA2000 Network
Step 1
Connect the ST Link to the USB port of your computer
Step 2
Open STM32CubeProgrammer
Step 3
Connect the 3420 PCB to the NMEA cable. Ensure power is on (12V)
Step 4
Connect the ST Tag to CONN2 on the 3420 PCB.
Step 5
On the STM32CubeProgrammer select the green 'Connect' Button
Step 6
Select the Programming Tab on the STM32CuebProgrammer
Step 7
Select 'Browse' and open the bootliader BIN file from S:\Code\Production\3420 AC Monitor\……………………………..
Click 'Program'
You can now disconnect the PCB from the ST Link
Step 8
Open Monex, Minimum version of Monex is 3.11, If you are on a lower version you must update this from S:\Code\Published PC Programs\Monex3…..
Step 9
Press the 'Get Prod Info' it should read Model ID: 'Oceanic Bootloader 3420-…………………
Step 10
Go to the AC Monitor tab on Monex and press the 'Reprogram' button.
Testing Instructions
The Process of testing the 3420 involves connecting the 3420 PCB to the 3420 Test Box, and altering the voltage using a Variac. Throughout the whole process, TAKE YOUR TIME AND DO NOT HANDLE WHEN POWER IS CONNECTED TO THE TEST BOX.
You will need:
- Monex3.11
- Programmed 3420
- NMEA2000 Network
- 3420 Test Box
- Variac
Step 1
Connect the 3420 Test box wires to the Deutsch connector wires as follows:
Step 2
The Black Neutral wire labelled 'N' must be connected to the Single Black wire on the Deutsch connector with the crocodile clip.
Step 3
The Red Live wire labelled 'L' must be connected to the thick Red, Pink and Purple wires on the deutsch connector using the crocodile clip.
Step 4
The Black Current transformer output wire must be connected to the 3 black wires using crocodile clips.
Step 5
The Red Current transformer output wire must be connected to the Yellow, While and Blue wires on the deutsch connector using crocodile clips.
Step 6
Connect the Variac to a plug socket and connect another plug to the Transformer output.
DO NOT CONNECT THE PLUG TO THE AC TEST BOX
Step 7
Push the Deutsch Connector into the 3420 PCB until both sides of the connector click tight.
Step 8
Connect the 3420 PCB to the NMEA cable. Ensure power is on (12V)
Step 9
Connect the Variac to the 3420 Test box, Making sure the Variac is OFF
Turn the dial of the Variac to 10V
Step 10
Make sure none of the crocodile clips are close to each other and ARE NOT TOUCHING
Step 11
On Monex click the 'Get Prod Info' Tab, in the Model ID you should read AC Monitor
Now go to the AC Monitor Tab, you should see:
Step 12
Turn on the Variac Power, the Blue LCD display on it should state the voltage. Turn the Dial to output 25V.