I use the i.mx sabreauto board to communicate to the other board with SPI interface.
But, I cannot get the data from SPI Interface.
I use the oscilloscope to check the CLK signal, and the write operation can generate the CLK signal,
but the read one cannot.
Linux version is Linux version 4.1.15-1.1.1
CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7)
Please, give some hint about this issue. Thank you.
The test source and log is attached.
Original Attachment has been moved to: teraterm20190929182.log.zip
Original Attachment has been moved to: spitester.c.zip