RP2040: have clock start high when SPI polarity high #7229
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jepler
approved these changes
Nov 19, 2022
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While testing for #6510, I found a different problem on RP2040. The hw peripheral does not start with SCK high when polarity set to high. This is discussed here:
raspberrypi/pico-sdk#868
https://forums.raspberrypi.com/viewtopic.php?t=336142
Add a workaround, which can be removed when pico-sdk is fixed (scheduled for 1.5.0).
Tested on a Feather RP2040 with a mode 3 sensor, ADXL343.