S32K312 Wakeup - Need wakeup and functional execution on single interrupt

mononendu · ‎08-19-2024

Hi!

We have been using the S32k312, 100Pin for our project. There's another ST NFC mcu connected on the board.

The NXP will go for card detection iff there's an interrupt generated by ST mcu, based on any delta change in Phase or Amplitude of the induced voltage.

We have configured the WKPU_CH_18 for the wakeup activity, and the same pin with this alternate functionality, PTC11, will be used to get the interrupt and process that card detection.

Now, though the system is waking up, and all other functionalities are finely working, when we keep the nfc device on top of the scope of antenna, considering that the NXP is already in sleep mode.
But the card detection s not being executed, the taask is scheduled in 10 ms.

What we need to do, what we are missing, We are not sure. Support needed.

Thanks a lot in advanced.

Tool: EB tresos 29.2.0.

RTD: 2.0.0/2.0.2

MCAL Modules used:

1. ICU -> WKPU

2. OS -> OsIsr

3. Port -> Pin

Please find the relevant configuration snapshots attached.

#S32K312

Julián_AragónM · ‎08-19-2024

Hi @mononendu,

Low power card detection is based on which reader is being used. For example, here is an application note explaining the principle for LPCD: CLRC663, MFRC631, MFRC 630, SLRC610 Low Power Card Detection.

If everything else is working properly, and card detection is not working, I would suggest contacting support for the ST NFC module, since third-party hardware is unfortunately out of scope for our community support.

There are various resources showing how to port the NFC Reader Library, which could be of help:

Best regards,
Julián