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Original question:

How to check the change of Ra table value is reasonable?

BQ27520-G4: Range of Ra Table value is wrong.

Youngjae Lee
Prodigy 10 points
Part Number: BQ27520-G4

I'm faced with similar situation.

Feedback gg.out.csv file have Ra Table value as below.

according to datasheet(SLUUA35), the range of these values SHOULD NOT BE exceed -128 to 127.

Because of this, I can't write value into dataflash

How can I resolve this?

Ra Tables,Ra0 Default,Ra Status,ff,Hex
Ra Tables,Ra0 Default,Ra Flag,55,Hex
Ra Tables,Ra0 Default,Ra Base,66,Num
Ra Tables,Ra0 Default,Ra Gain,66,Num
Ra Tables,Ra0 Default,Ra 1,66,Num
Ra Tables,Ra0 Default,Ra 2,69,Num
Ra Tables,Ra0 Default,Ra 3,62,Num
Ra Tables,Ra0 Default,Ra 4,62,Num
Ra Tables,Ra0 Default,Ra 5,65,Num
Ra Tables,Ra0 Default,Ra 6,62,Num
Ra Tables,Ra0 Default,Ra 7,66,Num
Ra Tables,Ra0 Default,Ra 8,73,Num
Ra Tables,Ra0 Default,Ra 9,74,Num
Ra Tables,Ra0 Default,Ra 10,81,Num
Ra Tables,Ra0 Default,Ra 11,103,Num
Ra Tables,Ra0 Default,Ra 12,144,Num
Ra Tables,Ra0 Default,Ra 13,308,Num
Ra Tables,Ra0 Default,Ra 14,53,Num

Ra Tables,Ra1 Default,Ra Status,ff,Hex
Ra Tables,Ra1 Default,Ra Flag,55,Hex
Ra Tables,Ra1 Default,Ra Base,66,Num
Ra Tables,Ra1 Default,Ra Gain,66,Num
Ra Tables,Ra1 Default,Ra 1,66,Num
Ra Tables,Ra1 Default,Ra 2,69,Num
Ra Tables,Ra1 Default,Ra 3,62,Num
Ra Tables,Ra1 Default,Ra 4,62,Num
Ra Tables,Ra1 Default,Ra 5,65,Num
Ra Tables,Ra1 Default,Ra 6,62,Num
Ra Tables,Ra1 Default,Ra 7,66,Num
Ra Tables,Ra1 Default,Ra 8,73,Num
Ra Tables,Ra1 Default,Ra 9,74,Num
Ra Tables,Ra1 Default,Ra 10,81,Num
Ra Tables,Ra1 Default,Ra 11,103,Num
Ra Tables,Ra1 Default,Ra 12,144,Num
Ra Tables,Ra1 Default,Ra 13,308,Num
Ra Tables,Ra1 Default,Ra 14,53,Num

  • 0
    TI__Guru* 76230 points
    Hi

    Change the values to 127, program the gg file on the gauge and then run the learning cycle. The gauge will update the resistance accordingly as needed. Before running the learning cycle change the ra flags and status to default which is ff and change the update statuses to 00
    thanks
    Onyx