BQ40Z50-R2 communication

Scofield

Intellectual 570 points

Other Parts Discussed in Thread: BQ40Z50-R2, BQSTUDIO

Using two BQ40Z50-R2,

using only one SDA and SCL communication line for communication,

how to distinguish the addresses of these two ICs

over 4 years ago

0 Nick Brylski over 4 years ago

TI__Mastermind 19195 points

Hi Scofield,

Let me look into this.

Best regards,

Nick

0 Scofield over 4 years ago in reply to Nick Brylski

Intellectual 570 points

Hi，Nick

It is stated in the specification of BQ40Z50-R2 that the SMbus address can be changed。

0 Scofield over 4 years ago in reply to Scofield

Intellectual 570 points

Hi,Nick

The SMbus address and address check are changed in Setting,

but the address still displayed on the Bqstudio interface is 0X17

0 Scofield over 4 years ago in reply to Scofield

Intellectual 570 points

Hi,Nick

We urgently need to solve this communication problem now,

how can we modify the SMbus address.

0 Scofield over 4 years ago in reply to Scofield

Intellectual 570 points

Hi,Nick

Read Cycle count from Advanced Comm SMB.

The SMBus address has been changed to 50,

and the address check is b0.

It is found that it cannot be read.

When the target address is changed to 16,

the correct value can be read.

0 Nick Brylski over 4 years ago in reply to Scofield

TI__Mastermind 19195 points

Hi,

After changing the address you may want to restart bqstudio

Best regards,

Nick

0 Nick Brylski over 4 years ago in reply to Nick Brylski

TI__Mastermind 19195 points

Hi,

You also should do a POR after changing the address.

Nick

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BQ40Z50-R2 communication