It is a while since I designed this ECU Main board and to my shame I admit that I did not even assemble the first version because the solutions and SW is the same as for the 3 x CAN board. I am considering requesting new PCB’s now as soon as I am finished with the 3 x CAN. The first version have received a few upgrades and corrections, but I will review the design one more time.
I instantly spot a few mechanical concerns:
- The SWD is a bit tight to the pin header so it might be difficult to mount. This also reminds me that I need an optimized adapter to replace the old ones. They have worked great, but I want to optimize the space they use. e I need to move the SWD a bit down.
- The second is if it is room for a M12 on the right-top corner after I moved the DC/DC. I think I have checked that before, but I will re-check it.
- The last I see is the density of the four leds if I am to lead light to surface.
This new version have a NMEA2000 CAN/Power connector at top-left. PSU voltage is 8-36V so it cover both 12V and 24V and have 6(7) expansion ports free. The connector that is a bit troublesome here is the USB connector, but that is for development primarely.
Another learning lesson is that I should focus on one board at the time. I often order a bunch of boards to save P&P, but end up not even assembling all of them due to lack of time. That will change as I get my PnP machine going and get some experience using stensils – or simply get a factory to assemble boards.
At precent I need to get Ethernet and SD-Card working on 3 x Main before I order new boards.