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Same Problem with 25k and my DSP does not work with that low Baudrate. Look's like the two Devices are not compatible... If you could implement a...

OK - thank you It's not the big amount of Data, even a Single Write to Adr 0x38 as attached hangs up the UPS.What I don't understand, why does it wo...

OK - One step further: If I start the system without my DSP and connect it later, everything works. What I do on startup, I write a big amount of ...

another pic attached, why is there a 0 on the last bit when working and a 1 when not working?  i2cProblem.png

Still having a problem when my second-Device (SigmaDSP) is on the bus. May any i2c professional can help me, --> see detailed analysis attached. ...

OK - after some time and retries:I received the new ordered HAT.I took your Linux-Image and tried again.Changing of the i2c Adress did not work...What...

I just ordered a new one, i will inform you when the new one works... (located in Switzerland).

i2c runs great, can read my device on 0x38 without any issue, no read from pico...  fw.png

Now I startet from the beginning with your Bookworm-Image. Still not working, now I can't even read any i2c register (addresses are shown with i2cde...

Hello PiMaster Thank you so much for your great support and effort. Since i'm running an old Firmware 0x117, I tried to update - may this could be...

After Reboot i have 0x00 in this register and the addresses are still on 6x --> see image attached.  pi.png

I still don't get how to change the i2c Adress.After setting: sudo i2cset -y 1 0x6b 0x00 0x50 what to do else / is there any "store to eprom" action...

Not yet, but I try again tonight...

As soon as i have not connected the other Device (what works since years) the adresses appear and pico-status works! When I reconnect the other Devi...

Hi PiMaster Thanks for your reply. What button do you mean for FactoryReset?The second one called "UPS Pico HV4 Reset"?