Hi
Im using a timer to generate interrupt based on the match registers. On one of those interrupt, I would like to start a SPI data transfer. The SPI transfer is also using vector based interrupt (for sending 3 bytes). But (of cause) the SPI interrupt doesnt work from within another VIC interrupt, so I guess I have to use nested interrupts?? Im looking at the nested interrupt sample from KEIL. I guess I have todo the following:
timer_ISR IENABLE Start SPI transfer Do something else Ack the interrupt SPI_ISR Send byte1 Send byte2 Send byte3 IDISABLE Ack the interrupt
Is this the right approach?
Using af LPC2103 ARM7
/Thomas
I did just that. I just start the SPI transfere in my timer interrupt. Then when SPI isr is saving the result for future use :-)