S32k SPI using Interrupt

Adhi_11 — Sun, 27 Nov 2022 17:16:24 GMT

Hello for my student project, i need to communicate with an RF chip using SPI. I used the polling method, mentioned in the cookbook examples to build my code. Unfortunately, this is not efficient and i am getting wrong results in continuous run. Is there any examples available on SPI Interrupt non-SDK. I enabled the IER in SPI for RDIE and TDIE, but is a little bit confused regarding the definition of the handler, so i used only RDIE, but it was not working properly. I need to read 2 bytes in the recieve for getting the result. Attached code below for reference. *Sorry its incomplete due to some modifications. Kindly help me.

Re: S32k SPI using Interrupt

danielmartynek — Mon, 28 Nov 2022 11:38:06 GMT

Hello @Adhi_11,

Unfortunately, we don't have an LPSPI Interrupt non-SDK example.

I don't see any interrupt handler in the project.

Also, it seems like you did not enable the interrupt in NVIC.

You can refer to the UART example:

https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K116-LPUART-LIN-Slave-TXRX-ISR-S32DS-ARM-2-2/ta-p/1128538

There is only one handler for each module.

You need to read the flags in that handler.

Regards,

Daniel

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S32k SPI using Interrupt

Re: S32k SPI using Interrupt