nrf52 Easy DMA and critical section

[Riccardo78]

Dear Sir/Madam,

My question regards the behavior of the EasyDMA during the transfer of data to / from a serial peripheral like SPI or UART.

Let's suppose that during the above operation, a critical section is entered. What is the behavior of the EasyDMA ? Does the transfer continue when the critical section is active ?

Thanks in advance for the support.

Kind regards

Riccardo Gaiati

[Håkon Alseth]

Hi,

 

As already mentioned by Dmitry, the EasyDMA runs independently.

If it generates an interrupt while you are in a critical section, the interrupt will be nested and handled when you exit the critical section.

 

Kind regards,

Håkon

[Riccardo78]

Hi,

thanks for the clarification.

Kind regards

riccardo