Powering options/EEM - Githubissues

dtcallcock commented 4 years ago

Options for getting 12V to power the board:

Barrel connector on the front panel
Molex connector on the back of the board
EEM
PoE

The first two seem like they definitely should. I think the EEM is worth doing (like on clocker). I don't think the PoE is, but mention it as it's become pretty standard in Sinara.

If EEM is implemented do we want the following features:

A diode (ideal diode?) on the 12V line like Clocker to prevent these kind of issues.
The usual EEPROM for identification via I2C (this wasn't done on Clocker).
An I2C IO extender for monitoring overtemp/overcurrent/pgood etc.
EEM to be located correctly for the CPCIS adaptor.

gkasprow commented 3 years ago

I added the ideal diode protection

gkasprow commented 3 years ago

we also have I2C ADC that monitors temperatures, currents, and voltages. we don't have LDO PG to monitor.

sinara-hw / AUX_PSU

Powering options/EEM #2