Hi folks,
does anyone know whether the MSP430 (F1611 being the one I read about) will execute the opcode it returns to via its RETI whether the interrupt mask is recoved from stack on or off? The 54xx DSPs do execute it (this made tracing an easy ride, no hardware/cycle counting to do an NMI etc). But other CPUs (those from Motorola, 68xx) do immediately take the next IRQ without executing the code returning to... OTOH, the 430 does execute one opcode after the instruction enabling the interrupts in its SR, so there is a hint of some latency there, I may be lucky after all and not have to do NMIs... :-)
Perhaps someone has been through that.
Thanks,
Dimiter