EEVblog Electronics Community Forum
Electronics => Projects, Designs, and Technical Stuff => Topic started by: physiii on June 28, 2016, 01:49:31 pm
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I am having trouble programming through USB. I can read data from the port fine, problem is, I can not write to the microcontroller unless an external programmer is also attached to TX and RX (see attached pictures). With that attached I can read and write through the USB.
I would like to fix this in the next revision, can someone help me out?
Thank you
physiii
(https://googledrive.com/host/0Bz3IuPUoatVdQUhUWXdVU2dvWVU/schematic.jpg)
(https://googledrive.com/host/0Bz3IuPUoatVdQUhUWXdVU2dvWVU/layout.jpg)
(https://googledrive.com/host/0Bz3IuPUoatVdQUhUWXdVU2dvWVU/ftdi1.jpg)
(https://googledrive.com/host/0Bz3IuPUoatVdQUhUWXdVU2dvWVU/ftdi2.jpg)