SPI_MODE2 and SPI_MODE3 configurations inverted#345
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It appears that the configurations for
ck_out_edgewere inverted forSPI_MODE2andSPI_MODE3. You can check the technical reference manual on page 76, table 23 "Clock Polarity and Phase, and Corresponding SPI Register Values for SPI Master".I've check with my oscilloscope that the current configuration is wrong and this fix corrects the issue.
Here are some examples writing
0x8Fwith theSCKline in red and theMOSIline in yellowSPI_MODE2before the change:SPI_MODE2after the change:SPI_MODE3before the change:SPI_MODE3after the change: