# Jumper between C22 and PA9 is missing ## Problem environment Errata and the datasheet for the Microchip based sendcomm design specifies powering the XC1 oscillator and RF1 switch from the SAMR34 PA9 rather than VCC. ## Steps to reproduce 1. Refer to the schematic 1. Examine PA9, VCC, and C22 1. Determine the cases of powering RF1 and XC1 ## Expected result C22 is only powered from a programmable power source, like PA09. A jumper exists to bridge C22 to VCC, or bridge C22 to PA09. ## Actual result C22 is fix bridged to PA09, and there is no jumper to VCC. ## Workaround Solder a wire from C22 to JP1. ## Notice The jumper should be a solder jumper with three pads and VCC to C22 default connected. ## Severity level This is **medium priority** because project deliverables require stable firmware, which benefits from the jumper strategy.

Resolved in 7da0bfb.