S32KのトピックS32K148-Q176 FreeRTOS Lpspi Communication

S32K148-Q176 FreeRTOS Lpspi Communication

carolineliu_wiw — Mon, 24 Feb 2020 15:10:54 GMT

Hello!

I'm working with s32k148-q176 EVB and trying to test lpspi communication based on FreeRTOS. I find the example project "freertos_s32k148". then I change its code. Altough i can build this project with no problems, the lpspi communication does not work.

Here is rots_start function in rtos.c file.

Here is my Task function.

Here is related function.

Here is the Debug window.

The varibles status_slave and status_master are equal to 2.

2 means, lpspi transfer is status busy.

I have no idea how to solve it.

Can anyone help？

Re: S32K148-Q176 FreeRTOS Lpspi Communication

raresvasile — Tue, 25 Feb 2020 08:58:03 GMT

Hello,

Are you calling LPSPI_DRV_MasterInit and LPSPI_DRV_SlaveInit ?

Thanks,

Rares

Re: S32K148-Q176 FreeRTOS Lpspi Communication

sandeepsandeepk — Sun, 21 Jun 2020 11:58:03 GMT

I also having a problem in which LPSPI_DRV_MasterInit and LPSPI_DRV_SlaveInit both intialized and frertos stop at default isr when masterTransferBlocking or any spi transfer function is called from the any task. since i have intialized wdog it will retart the controller every time.

Re: S32K148-Q176 FreeRTOS Lpspi Communication

carolineliu_wiw — Mon, 22 Jun 2020 07:28:17 GMT

Hi,

Maybe you can try to reset the interrupts priority of SPI.

Liu.