topic FreeRTOS + S32K3 + FS26 standby mode in S32K

FreeRTOS + S32K3 + FS26 standby mode

iverson3ya — Wed, 12 Jul 2023 08:27:58 GMT

I have a few questions that require assistance:

I initialized my system in PLL mode, but I disabled PLL to allow FS26 to enter standby mode. After switching to low-speed run mode with the clock source from FIRC 48MHz, the reference clock for UART remains the same, causing incorrect UART logs. How can I change the reference clock for UART in the low-speed mode?
As a temporary solution, I initialized the system with a low-speed clock during startup to ensure correct UART logs. However, when FS26 enters standby mode and I issue commands again, it gets stuck at 'prvPortStartFirstTask', and it seems like the tasks are no longer present. What could be the reason for this?

I have attached my project file for your reference. Please assist me. Thank you.

Nhi_Nguyen — Wed, 02 Aug 2023 10:14:24 GMT

Follow RM, Clock for UART:

Use-case for Low-speed RUN mode- Option

In DS configuration:

You're using LPUART_0:

When you change value of UART clock, values for baudrate will changed. You can check this at output of generated file

You can try above configuration.

Best regards,

Nhi

Akhil1 — Fri, 15 Dec 2023 12:53:37 GMT

Can you please share me the S32k312 wakeup method using SBC FS26 - Long Duration timer(LDT).

Regards

Akhil