I'm having a CPU crash problem and I am noticing an interrupt stack overflow when I send a high rate of SPI slave interrupts to my K20.
My system is setup as an SPI slave device utilizing a kernel level SPI interrupt when the receive FIFO is not empty (~1Khz).
The system also has two external A/D's interrupting GPIO lines configured as MQX interrupt inputs (~1Khz).
No matter what I do I con not change the size of the Interrupt Stack size, always reading ~1K. Does anyone know the trick?
Thanks n advance,