MCU-PLUS-SDK-AM263X: GPIO input qualification

Harsha Dsouza

Part Number: MCU-PLUS-SDK-AM263X
Other Parts Discussed in Thread: SYSCONFIG

Hi,

I'm trying to set input qualification for a few GPIO. As per the TRM I have to set number of samples using IOMUX.*_CFG_REG[QUAL_SEL] registers, and set the sampling period using IOMUX.QUAL_GRP_*_CFG_REG[QUAL_PERIOD_PER_SAMPLE] registers. This looks straight forward but using syscfg all I can set is number of samples (i.e. 3samples of 6samples), but I did not find how to set the qual period. There is neither an option for this in syscfg nor is there any API in the library to set the qual period.

Please let me know how I can set the qual period so that I can vary the sampling window as per my requirement.

Regards,

Harsha Dsouza

over 3 years ago

0 Fleenor over 3 years ago

TI__Mastermind 33493 points

Hey Harsha,

We are looking into this to see if there are any API options and how SysConfig can expose qual period configuration. It may be possible to manually write directly to those registers (assuming proper access configured, and Lock/Kick registers unlocked). Please provide some time for stakeholders to review.

Best Regards,

Zackary Fleenor

0 Frank Livingston over 3 years ago

TI__Mastermind 30108 points

Hi Harsha,

Sri Vidya Gunturi put together the following code example.

Regards,
Frank

GPIO_QUAL_RegSet.zip

0 Harsha Dsouza over 3 years ago in reply to Frank Livingston

Prodigy 200 points

Hi Frank,

Sorry for the delayed response. Thank you and Sri Vidya Gunturi Gunturi for the code example I was able to set and test the qual and it works as expected.

It would be great if this setting is included in syscfg, but I believe my requirement is satisfied so we can close this thread, if you guys promise to add this in next pass of syscfg

Regards,

Harsha Dsouza

0 Sri Vidya Gunturi over 3 years ago in reply to Harsha Dsouza

TI__Expert 7586 points

Hi Harsha

Yes I have created a Jira for the same feature to be available in the SDK in future releases:

Jira ID - MCUSDK-9660

Thanks for reply.

Regards

Sri Vidya

Arm-based microcontrollers

Arm-based microcontrollers forum

MCU-PLUS-SDK-AM263X: GPIO input qualification