BQ78350-R1: Can't read data flash

Hi Ghada,

I need more information to help you debug the issue. Are you using BQStudio to read from the device? Can you send screen shots showing what you are trying to do exactly? Are you using an EV2400 or EV2300? 

Please send a detailed problem description and I will be happy to help find a solution.

Best regards,

Matt

Hi Matt,

Thank you very much for your answer.
We ordered the EV2400 tool. But, it should be more than three weeks to be delivered and the project must be ready next Tuesday.
That's why, I opted to use an Arduino Mega board to communicate with the BQ78350 through the SMBus. I can receive static information and I can apply SBS commands to read and write for  W / R right. 
By default, the BQ is configured for 3 cells. So, to map the cells, I have to access the Flash Data through the ManufacturerAccess () command. I followed the steps in the technical reference.

The PF flag = 0 and I am in Unsealed mode. But, when I access the Data Flash to read, it gives me data that is not significant and they are the same regardless of the address of the registry.
It is a blocking point at the moment because I can not access the DataFlash or configure the BQ.

Hi Ghada,

I am not sure what could be the issue - it might be a little difficult to debug without the EV2400 tool. You might want to check this E2E thread (or search for other threads on the topic of writing/reading BQ78350-R1 data flash since there may be multiple useful examples): https://e2e.ti.com/support/power-management/f/196/t/828931

Best regards,

Matt