RTOS/AM4377: How to activate ADC and eQEP

Yong-kyoung Kim

Intellectual 470 points

Part Number: AM4377

Tool/software: TI-RTOS

Hi, I've tried to use ADC and QEP in my application(with SYS/BIOS)

When I enabled ADC0 & ADC1, I can see only ADC1 data.(ADC0 interrupt is not occurs..)

And I found FOC example in SYS/BIOS_IND_SDK, it seems that the initialization code has no code ADC0 related.

How could I use ADC0&1 at the same time?(with or without PRU, but input channel is different with AM4377_IDK board.)

And, I want to use QEP module, but I couldn't find some examples.

Can I get some QEP example code?

Thank you,

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

The RTOS team have been notified. They will respond here.

0 lding over 9 years ago in reply to Biser Gatchev-XID

TI__Guru* 95265 points

Hi,

Can you clarify what SW you are using? The AM437x Processor SDK is available at http://software-dl.ti.com/processor-sdk-rtos/esd/AM437X/latest/index_FDS.html. Under ti\starterware\examples, there is ADC examples using ADC0. There is no EQEP examples.

Regards, Eric

0 Yong-kyoung Kim over 9 years ago in reply to lding

Intellectual 470 points

Hi,
Thank you for your answer.
I solved the ADC ploblem. ADC1 has FSM to use ADC0 at the same time.
Plus, I wandering how it works on step.
I want to use ADC0_in0,2,4,6 & ADC1_in0, but step setting has only ADC1 setting.
Is the step setting register works for ADC0, too(in the same way)?
Thank you.

0 lding over 9 years ago in reply to Yong-kyoung Kim

TI__Guru* 95265 points

Hi,

Yes, STEP register works for both ADC0 and ADC1. You can look at TSCADCStepConfig() in starterware\dal\tsc_adc_ss.c for ADC0 step configuration.

Regards, Eric

0 Yong-kyoung Kim over 9 years ago in reply to lding

Intellectual 470 points

Alright, I have another question about eQEP.
Is there any reference of eQEP I can use?
Thank you.

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RTOS/AM4377: How to activate ADC and eQEP