CP2112, total noob question

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CP2112, total noob question

Postby BHK-888 » Fri May 18, 2018 9:55 pm

Hi, I've just bought a CP2112 adapter, and I'm trying to connect to a battery, with no success. I tryed with a BQ20Z955 and a R2J240, failed with both. Software is 4.30 DEMO. The soft recognises my adapter, successfully, but at the moment I push the read button, the adapter flashes red, and Windows gave that sound when you connect a USB device, and it keeps repeating, like if I was unpluging and repluging the adapter. In the device manager I can see that it's unconnecting and reconnecting my CP2112. If I stop reading, everything goes back to normal and the adapter stays connected continuously. I tested on 3 different PC, with the same result.
Is this normal behavior or my CP2112 is faulty?

Thanks in advance.
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Re: CP2112, total noob question

Postby admin » Sat May 19, 2018 3:04 am

Yes.
It's OK
Simply you can't find right connection or your batteries are not running.
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Re: CP2112, total noob question

Postby BHK-888 » Sat May 19, 2018 10:13 pm

Hi! Thanks, that's a relief! Then what could I have been doing wrong?
I know I need 3 wires from adapter: SCL, SDA, GND.
Image
I'm connecting:
SCL to C
SDA to D
GND to P-
Then I connect 10V 380mA DC positive to P+ and negative to P-
If I press "Read battery data" I only get the previous disconnect/reconnect cycle. I found there's another, "Read chip" button on the right side of the window.
If I press the "Read chip" button, the software shows me:
Code: Select all
Device Type: 0955
Firmware Version: 1.05
Hardware Version: A6
Manufacturer Status:
FET1|PF0|ST3|ST0|
Chemistry ID: 0218
---------------------------
Unable to unseal
No Full access


I could use any advice. Thanks in advance!
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Re: CP2112, total noob question

Postby admin » Mon Jun 04, 2018 3:17 am

What version do you use?
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Re: CP2112, total noob question

Postby proglyk » Fri Nov 23, 2018 8:41 pm

Similar problem! Battery AS10D73, CP2112 converter and no communication. What is wrong?
I'm connecting:
SCL to C
SDA to D
GND to P
BI (or PI) pull-down to ground 10K. And nothing! I noticed that Led 15 of bq20z955 (named nPRES in datasheet) not connected to BI. It is right? But what means "The bq20z95 checks the PRES pin periodically (1s). If PRES input is pulled to ground by external system, the bq20z95 detects this as system present." ?? Dont understood
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Re: CP2112, total noob question

Postby proglyk » Fri Nov 23, 2018 8:47 pm

Mine
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