S32KのトピックS32-UART-INTERRUPT

S32-UART-INTERRUPT

wangfei11 — Mon, 30 Oct 2017 07:49:05 GMT

I want to open uart interrupt.I set the following register, or I can't access it（void UART1_IRQHandler(void))

please can you help set the register?

danielmartynek — Mon, 30 Oct 2017 14:53:05 GMT

Hi,

The IP register is not set correctly, the priority number must be written to the 7-4 bits of the register.

S32_NVIC->IP[33] = 0x30;    // Priority level 3‍

See Chapter 7.2.1 of the RM.

But this should not cause any problems.

Did you enable interrupts in LPUART CTRL register?

Is the name of the interrupt handler function correct?

As per S32K144.h, it is

void LPUART1_RxTx_IRQHandler(void)‍

Regards,

Daniel

wangfei11 — Tue, 31 Oct 2017 03:08:58 GMT

Thanks.I named the wrong interrupt function name,but I only have to Sett Transmit Interrupt Enable to enter the interrupt.

Below is my register setting operation, I hope you can give directions.

Regards

Fei wang