Iam using k70. My SPI Reading (first writing like 2 bytes then reading one byte, FIFO function is disabled) doesn't function. I used RFDF and TCF two interrupt sources. But funny is, I could get the right read-value when I set one breakpoint at RFDF-ISR, withoutsetting this breakpoint, I could never get the correct value.
Hi Wang,
I've had a brief look through your question and I'm also not sure of the reason that cause the issue.
I wonder if you could show me the data stream figure between the MCU and slave.
I've attached a demo about K60 communicate with a external flash chip and please refer to it for details.
Have a nice day!
Ping