So, I made the r_spi.c file writeable and regenerated the project. Nothing changed in it other than my edits for that bug. return value is still UNSUPPORTED when I hit the 8 bit attempt. This is still running 500KHz, more or less double the min bitrate. I've checked on an analyzer and that's the bitrate it's running when it's running 32 bit mode (DTC).
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