bq40z50 Remaining Capacity Alarm Data Flash

TcPaden

I used Battery Management Studio to change from the default value for SBS Config/Data/Remaining AH Cap. Alarm (from 300 to 700).

I then checked the value using the 0x01 Remaining Capacity Alarm() function, but it returned the default value?

So I tried a block read under the Adv. Comm. SMB (at 0x47FC), and it showed the correct new value.

Could someone verify that 0x01 is reading incorrectly?

Thanks.

over 10 years ago

0 ThomasCosby over 10 years ago

TI__Guru 73830 points

The SMB 0x01 command reads the data from RAM, so you will have to issue a reset command to transfer the data that you updated at flash memory location 0x47FC to RAM. The new data should show up when you read 0x01 after the reset has occurred.

0 TcPaden over 10 years ago in reply to ThomasCosby

Expert 1085 points

Got it.

Do all the 0xYY commands read from RAM only?

0 ThomasCosby over 10 years ago in reply to TcPaden

TI__Guru 73830 points

yes

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bq40z50 Remaining Capacity Alarm Data Flash