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Hello;
I'm using uVision to simulation a Cast R8051. I've noticed that setting the IP SFR (0xB8) does not change the interrupt priorities, but instead enables INT0A, INT1A, and INT2-7. The Cast documentation suggests that the IP register, at 0xB8, controls the IRQ priorities. Does anyone know how to control interrupt priorities via SFRs in uVision for the Cast R8051?
Robert