LP-AM263: eCAP Configuration through INPUTXBAR

Abdul Razak

Prodigy 135 points

Part Number: LP-AM263
Other Parts Discussed in Thread: SYSCONFIG

Can we configure INPUTXBAR as eCAP in AM263?

In TRM document, it is mentioned that INPUTXBAR can be configure as eCAP.

Reference from TRM: AM263x Sitara Microcontroller Technical Reference Manual (Rev. C) (ti.com)

configuration table in Section - 7.4.10.1 INPUTXBAR.

kindly provide configuration details about eCAP.

over 2 years ago

0 Aakash Kedia over 2 years ago

TI__Mastermind 26145 points

Hi Abdul,

The eCAP and XBAR configurations are covered as part of MCU plus academy - https://dev.ti.com/tirex/explore/node?node=A__AQ0h4FMdDFNTaVbxdi5-kg__AM26X-ACADEMY__t0CaxbG__LATEST

Please go through this content. In the meanwhile, I am assigning this thread to the experts, if you have directed follow-up question on this.

Best Regards,
Aakash

0 Sanjeev Karaiyan over 2 years ago

TI__Expert 6995 points

Hello,

Please refer this ECAP example in the MCU SDK

https://software-dl.ti.com/mcu-plus-sdk/esd/AM263X/08_06_00_34/exports/docs/api_guide_am263x/EXAMPLES_DRIVERS_ECAP_CAPTURE_PWM.html

In this example, Input XBAR0 (instance 0 of InputXBAR) is configured to route GPIO61. And ECAP0 (instance 0 of ECAP) is configured to use InputXBAR0 as input.

Sysconfig settings to route GPIO61 through InputXBAR0

Alternately, driver APIs can be used to configure the InputXBAR.

Driver API to configure InputXBAR is SOC_xbarSelectInputXBarInputSource.

https://software-dl.ti.com/mcu-plus-sdk/esd/AM263X/08_06_00_34/exports/docs/api_guide_am263x/group__DRV__SOC__XBAR__MODULE.html#gaad753677ce1bb768961fedd511c5a834

For example:

For routing GPIO61 to InputXBAR0, the API call is

SOC_xbarSelectInputXBarInputSource(CSL_CONTROLSS_INPUTXBAR_U_BASE, 0, 0, INPUT_XBAR_GPIO61, 0);

Thanks

K.Sanjeev

Processors

Processors forum

LP-AM263: eCAP Configuration through INPUTXBAR