BQ40Z50: Instruction Flash (IF) Checksum Permanent Fail during RS103Testing

Rogelio Colin

Prodigy 20 points

Part Number: BQ40Z50

We received two battery packs that failed during testing.

One failure could be explained away but two failures for the same failure is suspicious.

What causes this failure? Is this a "bad programming" issue.

over 1 year ago

0 Jose Couso over 1 year ago

TI__Mastermind 27321 points

Hello Rogelio,

The image cannot be seen, but see this thread for most common issue with this PF.

Regards,
Jose Couso

0 Rogelio Colin over 1 year ago in reply to Jose Couso

Prodigy 20 points

This does not solve the issue. I can open and compare files but this is still meaningless because the raw data does not mean anything without any information explaining it. Also, does the default SREC mean the SREC that was programmed into the unit or the TI default SREC? There is a corruption and the files can be compared but then what? Will TI review and state there is an issue. I can update the SRECs.

0 Jose Couso over 1 year ago in reply to Rogelio Colin

TI__Mastermind 27321 points

Hi Rogelio,

What is the Firmware version you are using? I can provide the srec file internally. You can program this srec to check if the failure goes away.

Please show what you see here (see below)

Regards,
Jose Couso

0 Rogelio Colin over 1 year ago in reply to Jose Couso

Prodigy 20 points

0 Jose Couso over 1 year ago in reply to Rogelio Colin

TI__Mastermind 27321 points

Sent it to you via private message.

Regards,
Jose Couso

Power management

Power management forum

BQ40Z50: Instruction Flash (IF) Checksum Permanent Fail during RS103Testing