topic Re: Getting wrong value of cell 14 and stack voltage when using FRDM33771B and S32k144 in S32K

Getting wrong value of cell 14 and stack voltage when using FRDM33771B and S32k144

Shobha — Fri, 05 Jul 2024 09:45:39 GMT

Hello,

I have interfaced mc33771 with S32K144 and used 7 cells. I have done the cell tapping as per the given connection in datasheet given for cells less than 14. I'm getting wrong value of cell 14 and total stack voltage. I am not able to get why is this happening. Also I'm getting FAULT1 and FAULT3 as yes. How can I know what's this fault is for? I've attached the snip below
It would be great if you can help me with this.

Thanks in advance!

Re: Getting wrong value of cell 14 and stack voltage when using FRDM33771B and S32k144

guoweisun — Mon, 08 Jul 2024 01:22:16 GMT

Please install 14 cells for this HW/SW,if less than 14 cells the hardware also need update.

Re: Getting wrong value of cell 14 and stack voltage when using FRDM33771B and S32k144

Shobha — Mon, 08 Jul 2024 04:22:42 GMT

Hey
Can you pl elaborate on how to install 14 cells for this HW/SW, if less than 14 cells.

Re: Getting wrong value of cell 14 and stack voltage when using FRDM33771B and S32k144

guoweisun — Mon, 08 Jul 2024 05:29:32 GMT

You can down AN12536 for getting more information.

Re: Getting wrong value of cell 14 and stack voltage when using FRDM33771B and S32k144

Shobha — Mon, 08 Jul 2024 06:32:39 GMT

Yes I've already downloaded AN12536 and done the connection of 7 cells as per the Type A wiring shown. Below is the attached connection that I've followed.

Re: Getting wrong value of cell 14 and stack voltage when using FRDM33771B and S32k144

Gad_usr1 — Thu, 25 Jul 2024 12:03:04 GMT

Hi, were you able to solve this issue?