9 months, 4 weeks ago.
UART remove pull up
What configuration are the UART pins put in, are they in pull up mode? I have a device connected hat has a 1K series resistor, when I look at the UART on a scope trace the voltage levels only go from 1.6 to 3.3v.
Would it be possible to alter it to pull to ground? If so how.
9 months, 3 weeks ago.
Please refer to this file
In serial_init(), rx/tx pins are set in PullUp mode, you can set them to PullNone for your device setup.
- Desmond, team Mbed