I read the interrupt manual and searched this forum, but could not find the answer to the question: are interrupts re-entrant? My system has PWM interrupts (extremely high priority) and UART and timer interrupts (low priority). The behavior I would like, is for the PWM interrupt to be able to interrupt a UART or timer ISR, but I would like the PWM ISR to never be interrupted by anything ever.
That last bit I can achieve by disabling global interrupts while in the PWM ISR, but how about that first bit? Will the PWM interrupt jump to the PWM ISR even if I'm in the middle of one of the other ISRs?
I'm using one of the event manager modules for PWM interrupt, SCIB for RX/TX interrupts, and TIMER2 for timer interrupts.
TIA, -Jon