How to connect the wakeup sources with Wakeup Unit (WKPU) for S32K3xx

[OliverTian]

Hi,

    How to connect the wakeup sources with Wakeup Unit (WKPU) for S32K3xx. 

    I think RM should be improved to add one mapping table. 

 Regards

Oliver

[OliverTian · Accepted solution]

   For S32K3, there are five wakeup sources, as 0～4.

• Wakeup Source 0 : SWT_0 timeout, RTC-API API wakeup
• Wakeup Source 1 : RTC-API RTC timeout
• Wakeup Source 2 : Round robin wakeup interrupt (trigger mode interrupt) from any of CMP_0, CMP_1 or CMP_2
• Wakeup Source 3 : RTI wakeup
• Wakeup Source 4 - Wakeup Source 63 : External pin wakeup sources, WKPU[0] - WKPU[59]

   So, if you use EB to configure IcuWkpu in Icu, you need take care.

   For example, if the wakeup source is CMP_x, the number within Wkpu Channel should be 2;

                        If the wakeup source is external pin PTC20, you can get the WKPU[43] from "S32K3xx_IOMUX.xlsx" in RM's attachment. BUT the number within Wkpu Channel should be 47  (43+4).

Notes:

   In EB Tresos

   In S32K3xx_IOMUX.xlsx 

Hope this will be helpful.

Cheers!

Oliver