BQ40Z50: BQ40Z50 multiple Flag Map Set Up per one GPIO

Victor Ruton

Part Number: BQ40Z50
Other Parts Discussed in Thread: BQSTUDIO

Tool/software:

I am developing firmware for the BQ40z50 based on technical reference e BQ40z50-R5
I need the GPIO 22 (LED) to switch from logical 1 (High level) to 0 (low level) in output mode when the following events are detected:
- Switching to logical 1 bit DCOT (15 bit Safety status A+B register)
OR
- Switching to logical 1 of any bit of the Permanent failure register
OR
- Switching to logical 1 bit OT ( 6 bit temp range register)
OR
- Switching to logical 1 bit CUV (0 bit Safety status A+B register)
I have entered the following HEX addresses to fulfill these conditions
- 87f8
-970d
-9765
-9708
But the system always keeps a logical 1 on this GPIO when triggered DCOT or OT.
Can you tell me exactly where I made a mistake and how to correct the addresses in Flag Map Set Up?

7 months ago

0 Anthony 7 months ago

TI__Mastermind 28450 points

Hi Victor,

If possible, can you please share the .gg file of the gauge settings so we can confirm the configuration?

Regards,

Anthony

0 Victor Ruton 7 months ago in reply to Anthony

Prodigy 10 points

Hi,Anthony,
Sending the config to you.

Regards,
Victor

Test_R5.gg.csv

0 Anthony 7 months ago in reply to Victor Ruton

TI__Mastermind 28450 points

Hi Victor,

Thank you for sharing the .gg file.

Victor Ruton said:

But the system always keeps a logical 1 on this GPIO when triggered DCOT or OT.

I am confused on what is meant here, do you mean that the bit will continuously keep the logical one even after these protections are triggered or is the concern that after triggering they do not go low?

Regards,

Anthony

0 Victor Ruton 7 months ago in reply to Anthony

Prodigy 10 points

Hi,Anthony,
That's exactly what I assumed.

Anthony said:
do you mean that the bit will continuously keep the logical one even after these protections are triggered

For example, the easiest way to practice was to use the DCOT status, when I call this status (in BQStudio it goes to 1), then I need the GPIO to be attached to the GND, but when measuring with an oscilloscope, the battery voltage remains there.
Regards,
Victor

0 Anthony 7 months ago in reply to Victor Ruton

TI__Mastermind 28450 points

Hi Victor,

Based on the .gg file, it seems like all of the GPIO setups have FLAG_OR set to 0 for AND, and since all of these conditions are set up on the same GPIO pin, this means it technically will not trigger unless all of the conditions are met at the same time. If possible, can you please change the FLAG_OR to 1 and see if this is able to alleviate the issue?

Regards,

Anthony

0 Victor Ruton 7 months ago in reply to Anthony

Prodigy 10 points

Hi,Anthony,
This suggestion didn't work, moreover, if i turn off the other conditions and leave only the DCOT status trigger, then the selected GPIO does not change its state regardless of the DCOT in Safety status. It is a Regretful that I cannot take screenshots to visually confirm this problem.
Regards,
Victor

0 Anthony 7 months ago in reply to Victor Ruton

TI__Mastermind 28450 points

Hi Victor,

Would it be possible to share the bqStudio register screen when the DCOT protection is being triggered?

Regards,

Anthony

0 Victor Ruton 6 months ago in reply to Anthony

Prodigy 10 points

Hi,Anthony,
Protection is currently set to 5°. Please take a look.
Test_R5-v0.2.gg.csv

Regards,
Victor

0 Anthony 6 months ago in reply to Victor Ruton

TI__Mastermind 28450 points

Hi Victor,

Thanks for confirming the register mapping, would it be possible to share the .srec file so we can test it from our side to see if we can reproduce it?

Regards,

Anthony

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BQ40Z50: BQ40Z50 multiple Flag Map Set Up per one GPIO