We would like to configure a KL25z MCU so that if interrupts IRQ0, IRQ10, and IRQ...
- We would like to configure a KL25z MCU so that if interrupts IRQ0, IRQ10, and IRQ 31 are requested simultaneously, the CPU responds by servicing IRQ10 first, then IRQ 0 and finally IRQ 3 Write the C code to configure MCU. Write Comments. Micro controller unit(MCU)
Homework Answers
Interrupts are serviced in order IRQ10, IRQ0, IRQ31.
Priorities must be in increasing in the above order. For example, 64, 128, 192, or 0, 64, 192.
Set NVIC_IPR2[23:22] to 01 // IRQ10
Set NVIC_IPR0[7:6] to 10 // IRQ0
Set NVIC_IPR7[31:30] to 11 // IRQ31
NVIC_SetPriority(SPI0_IRQn, 64); // IRQ10
NVIC_SetPriority(DMA0_IRQn, 128); // IRQ0
NVIC_SetPriority(PORTD_IRQn, 192); // IRQ31
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