S32K142 FLEXCAN low power modes

julian_yeoh — Fri, 15 May 2020 07:05:23 GMT

Using S32K142 with S32 SDK

1) Using the CAN PAL component from Processor Expert, are there any APIs that allow us to put the FlexCAN hardware into a low power mode?

2) If I am using the FLEXCAN driver component from Processor Expert instead, there is an API called FLEXCAN_DRV_ConfigPN() that lets me put the hardware into Pretended Mode which is a low power mode. But if I would like to use an even lower power mode (similar to the Sleep mode of the MSCAN of the S9KEA), is this possible? Can I make the CAN hardware to go to sleep (not trying to match CAN IDs) and then generate an interrupt that wakes the CPU from Stop mode when there is a change at the RX pin.

Sorry if I missed this information from the documentation.

Re: S32K142 FLEXCAN low power modes

Alexis_A — Thu, 04 Jun 2020 20:55:54 GMT

Hello Julian,

1.- Some APIs that help you to enter a low power mode for the module FLEXCAN_DRV_ConfigPN and the FLEXCAN_EnterFreezeMode but if you want to put the MCU in a low power mode you will need a power manager component.

2.- As it mentions in the section 55.5.11.4 Pretended Networking mode, you can put the MCU in stop mode and wake up using the Flexcan interrupt.

Best Regards,

Alexis Andalon

Processor Expert Software中的主题 S32K142 FLEXCAN low power modes

S32K142 FLEXCAN low power modes

Re: S32K142 FLEXCAN low power modes