How to understand chapter 2.1.5 in the DocID16125 Rev 6

[Vyacheslav Azarov]

Posted on December 07, 2016 at 14:38

Hello, excuse me persistence.

In document said: 'If an interrupt is cleared or masked when the context saving has already started'. What is it meant?  And further. How to can prevent nested interruption from pending by software command? New interruption process may begin before first command in the handler.

Thanks in advance.

#limitation #interrupt #errata

[Simon V.]

Posted on July 07, 2017 at 16:49

Hello,

Here a figure to help you to better understand. It is important to update by software the CCR register. You can have a look to the errata sheet.

Regards,

Simon

[Vyacheslav Azarov]

Posted on July 23, 2017 at 06:00

Hello Simon.

Thank You very match for explanation charts. However, nowhere is it specified how many commands of the interrupt handler code will be guaranteed executed after the jump and before the nested interruption process? It is principal.