SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?

variable_andrew — Mon, 23 Jan 2023 19:25:36 GMT

The SAI demo shows how to init the SAI, but not de-init.

I'm wondering if how I'm initializing (or deinitializing) is leading to some system instability, as when the SAI has completed playing a sound clip, and i run my deinit code, the system somehow gets stuck in the `SAI3_TX_IRQHandler` perhaps once in a few hours of use here (so not easy to reproduce) WHILE the code is actually running the deinit routine (EDMA_Deinit), as per:

I only run the deinit routine once my clip has completed playing (and this works fine 99.9% of the time...), but it still seems to create instability.

Attached is the base source code for my SAI control.

I was deinit'ing the Mclk as well as everything else, but made it only so I would init that once @ system startup in hopes that it'd fix my issue. (It didn't).

Another option is to never de-init, but I thought that I should force the SAI to abort any existing DMA's when I'm done w/ a sound clip, right?

Re: SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?

variable_andrew — Fri, 27 Jan 2023 16:57:54 GMT

bumping this thread up for help / ideas

Re: SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?

variable_andrew — Tue, 07 Feb 2023 21:20:32 GMT

any ideas?

Re: SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?

variable_andrew — Mon, 13 Feb 2023 15:19:17 GMT

anything?

topic SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS? in MCUXpresso SDK

SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?

Re: SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?

Re: SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?

Re: SDK 2.12.1 - RT1052 SAI (MQS): proper init/de-init flow w/ FreeRTOS?