Mity CPU Platforms » MitySOM-AM62 & MitySOM-AM62A

06/05/2023

06:46 PM PCB Development: RE: VSEL_SD functionality

No problem. I condensed all this info into a wiki page for future reference as well. And have initiated changes for... Jonathan Cormier

06:25 PM PCB Development: RE: VSEL_SD functionality

Thank you very much to both of you for the quick and extensive answer. The key information that the voltage of VDDSHV... Pal Szabo

05:51 PM PCB Development: RE: VSEL_SD functionality

The software side of the SD voltage selection is configured here:
https://support.criticallink.com/gitweb/?p=linux... Jonathan Cormier

03:02 PM PCB Development: RE: VSEL_SD functionality

Pal Szabo wrote:
> What is the functionality of the VSEL_SD pin (position 176 on the SODIMM connector)? Is it the sa... Jonathan Cormier

09:05 AM PCB Development: RE: JTAG TRSTn pulldown and other JTAG pullups

Thank you very much Mike, this clarifies the implemented pulls! Pal Szabo

06/04/2023

10:37 AM PCB Development: RE: VSEL_SD functionality

Hi Paul,
The VSEL_SD pin is connected to pin 12 of a TPS65219 PMIC on the SOM. VSEL_SD selects which voltage is a... Michael Williamson

06/03/2023

07:12 PM PCB Development: VSEL_SD functionality

What is the functionality of the VSEL_SD pin (position 176 on the SODIMM connector)? Is it the same signal as VD_SEL ... Pal Szabo

06/02/2023

12:56 PM PCB Development: RE: JTAG TRSTn pulldown and other JTAG pullups

I corrected the last post. TDO is not pulled up or down on the SOM. Michael Williamson

12:55 PM PCB Development: RE: JTAG TRSTn pulldown and other JTAG pullups

Hello,
The SOM includes the following on the JTAG related lines:
* 4.7K Pulldown on TRSTn
* 4.7k Pullup to VDD... Michael Williamson

12:03 PM PCB Development: JTAG TRSTn pulldown and other JTAG pullups

The AM62x datasheet states (in section 6.4) that an external pulldown is required on the TRSTn line. Is this implemen... Pal Szabo