Hi Team,
Good day!
Thank you in advance for the support.
Best regards,
Jonathan
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Hi Team,
Good day!
Thank you in advance for the support.
Best regards,
Jonathan
Hi Jonathan,
Just checking to make sure, but were the gpio events working before the 2.6v dip. Also, does the voltage go back to 3.3 while you are testing the events?
Thanks and Regards,
Chris
Hi Chris,
Yes, GPIOs were working before. Yes, voltage rises back to 3.3V. Also, we manually toggled our load switch enable pin low for 10 seconds so it can drop to 0V before I turn the rail back on. Although rail dropped to 0V for 10 seconds and back up to 3.3V, it still disabled the GPIOs.
This was while usb power cable is plugged in. It currently only works when usb power cable is not connected during this VIN_3v3 power cycle event.
We will need this to work in both cases.
Please advise
Thank you!
Victor
Hi Victor,
Let me talk speak with the team internally and I will get back to you by the end of the week.
Thanks and Regards,
Chris Lim
Hi Victor,
We had a couple questions about your setup.
Thanks and Regards,
Chris
Hi Chris,
1. Customer classified. Use case: charge system, read storage devices
2. I am using GUI 7.04
3. Customer Design
4. EEPROM
I realized that my issue disappears when I keep my TPS always on. I actually don't need to cycle power. I have bypassed the switch and have it working.
Thanks,
Victor
Hi Victor,
I'm glad you were able to get it working!
The main concern we had for your issue was that the PD controller would restart without properly checking the RAM and would not re-flash the RAM from the EEPROM after the Voltage on Vin3V3 dropped to 2.6. We are not sure that this was your issue but was our best guess from the current information.
Closing this thread now.
Thanks and Regards,
Chris