This worked for me:

https://github.com/raspberrypi/firmware/issues/828

Post by Ghost on June 27

Good luck!

Is sudo i2cdetect -y 1 working at all or do you get an error message?

Hi,

again confirmed. This solves this issue too!

So documentation needs to be updated: Keep the fssd.py script before the hwclock and add 2s delay before initializing hwclock.

Now everything what I need from the pico works fine.

Thank you!

Here you go

Thank you!

Can someone pls test the hw clock: unplug PI wait until shutdown plug PI back in and wait until boot complete sudo hwclock -r I get: hwclock: Cannot access the Hardware Clock via any known method. It seems that if FSSD is placed before the hwclock statements in /etc/rc.local FSSD works but hwclock d...

Confirmed! Changing the sequence in /etc/rc.local works!! Only one additional slight change: Instead of sudo python /home/pi/picofssd.py I have python /home/pi/picofssd.py & since: sudo not needed because rc.local is run with admin priviliges and & to keep picofssd.py in the background. @BenCa: GREA...

OK here is my setup: Rasp Pi B+ 3.18.7+ #755 PREEMPT Thu Feb 12 17:14:31 GMT 2015 armv61 GNU/Linux Reset Pin installed Pico FW Version 0x10 (checked with sudo i2cget -y 1 0x6b 0x00) still have the problem that PI goes down after power loss -> good, reboots after power applied -> good but then sudo i...

Thank you for releasing another FW Version however very brief testing indicated it is still buggy: RPI powered, set 0x6B 0x09 to 0x3c, remove power, after 60s Pico initiates Shutdown and powers off PI -> so far so good. 5s later power applied again -> pico boots, but i2c bus of PICO is not initializ...

Hi, some more info: When I read register 0x6b 9 I get: 0xFF which I do not want. I change 0x6b 9 to 0x14. OK so far. Unplug power afert a few seconds PICO shuts down -> OK so far. Apply power: Pico starts back up but PICO Adresses not present on I2C Bus (i2cdetect shows ........., i2cget yields: Err...

I wanted to thank you for your excellent Support on your product. You have been very responsive to questions and your answers showed that you know your product very well. I wish you good luck with your business.

Thanks