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SPI Interrupt

Question asked by frdca on Jun 24, 2013



I have a problem in SPI. I am using BF531 in a personalized plate.


By unmasking the interrupt (SIC_IMASK = 0x2000) program now jumps to the interrupt routine and not out. Go out and back to routine.


If within the ISR I turn off SPI interrupt disappears, but soon turn back to the problem.


The interruption occurs before any settings, simply unmask the interrupt.


SPI_STAT equals 0x0001.


The CS pin is high. There is no clock on the SCK pin.


There is a flag that needs to be cleaned or initial setup?