BQ76PL455A-Q1: BQ76PL455A-Q1 CRC ERROR

Star Xu

Part Number: BQ76PL455A-Q1

I find some models(connected to the MCU for communication) are connected to the PC, and the BQ76PL455A-Q1 comes with a test program that causes a CRC ERROR (baud rate 250K), as shown in figure 1.

When checking the reply data, it is found that when the data is uploaded back, the most significant bit of a byte changes from 0 to 1, as shown in figure2

When the chip connect to the work board, it has been operating for a long time, and the data of the three chips does not reply after sending the sampling command (accumulated number of sending, no data received in serial port data)

What should I do if the data is not returned after the cell sampling voltage command is sent?

Thanks

Star

over 5 years ago

0 Andy Li55 over 5 years ago

TI__Intellectual 2520 points

Hi Star,

I need more information to fully understand your application.

I take a quick look at your command"81 00 02 20" and think 20 is not correct data.

You can look at Command register at register map section.

For single device command, it would be 00; For group/broadcast command, it stands for the address of highest device.

Thanks!

Andy

0 Leslie Marquez over 5 years ago in reply to Andy Li55

TI__Genius 9401 points

Hi Star,

I'm going to close this thread since we haven't heard back from you. Please open a new thread if you still need support.

Regards,

Leslie

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BQ76PL455A-Q1: BQ76PL455A-Q1 CRC ERROR