I must ask: According to the schematics, if one adds R519 and D507, the feature of NOT powering the board with USB is lost. And the note: Do not populate with JP501. Is there a special reason for this design choise for 3V3?
in ShieldBuddyPinoutRevB_UM_2 the top layout view is quite unreadable, the bottom layout view is much better.
Do you have a better top layout picture?
Thanks in advance. \Wiken
Last Edit: Nov 15, 2017 9:30:14 GMT by wiken: Added another question to speed up development.
Hi, I tried to get my ShieldBuddy to work with 3.3V. First I tried to directly power the middle Pin of the jumper with the 3.3V from what i saw on the diagram posted above this should be possible, however the red reset LED is constantly on. Same goes for the modified linear regulator. Is there anything i have to consider regarding the software?
I have the same problem as descriped by hd9919. The red led is constantly on and I do not get any access to the board with the usb interface. I did all changes on the board, I also added the D507 diode
Hi. I can verify that the rebuild works fine. Do however follow both schematics and replace the reset-chip.
My first TC broke after rebuilding with first schematics. I did rebuild it using the second schematics too, and replaced the reset-chip. But that one uses lots of amps, broken. My advice, don't start it up after half rebuild.
After rebuild of a second one, all is fine and it works great. \Wiken