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Original question:

CC3220SF-LAUNCHXL: GPIO interrupt is not getting Triggered

CC3220SF-LAUNCHXL: P45 not working as uart Rx

moshe jacobson18
Expert 2220 points
Part Number: CC3220SF-LAUNCHXL
Other Parts Discussed in Thread: CC3220S, SYSCONFIG, CC3220SF, CC3220R

Hi

i have 2xCC3220SF & 1xCC3220S launch pads 

i set P45 via sysconfig as the RX pin for uart2_0....on the CC3220S i have no problems with P45 operating correctly as Rx.

However, on the CC3220SF, the Rx side of the UART does not work & i have to use P04 which works fine (but i lose the use of a button).
I did populate R42 & removed L7 on the CC3220SFs so the track from the header pin to the MCU pin is connected.
On the scope I do see that when i send a signal P45 remains high so obviously its not working as a UART pin (or GPIO for that matter).
The UART going via the XDS is disabled via sysconfig.

Is there anything that i can do to rectify this so as to be able to use P45?.

thanks in advance.
moshe