BQ76952: General usage questions

Zoe Dittman

Part Number: BQ76952
Other Parts Discussed in Thread: MSP430F5529, BQSTUDIO, MSP430FR2355

I'm using this IC BQ76952, for now I'm using its development board as my reference design. The following are my questions:

Can I use two or more BQ76952 connected with same micro-controller on same board?

Can I program micro-controller on development board reference design? If Yes, where I can find code and customize it?

Can I customize my GUI if yes how and on which software?

Thanks so much!

over 5 years ago

0 Matt Sunna over 5 years ago

TI__Guru* 81034 points

Hi Zoe,

It is definitely possible to connect more than one BQ76952 device to a microcontroller. There are multiple users who have started designs by stacking two of these devices, although that presents some challenges interfacing with the microcontroller from different voltage domains and with controlling protection FETs. We plan to publish a reference design for a stacked solutions at some point, but that may be a few months away.

The microcontroller on the development board is an MSP430F5529. It can be reprogrammed, but we do not have code available to share for this. It primarily serves the function of interfacing the PC to the IC so that you can experiment with BQStudio. We do not have a way to customize the GUI.

The EVM User Guide does show how to connect an external microcontroller to the EVM and I do have a basic code example using the MSP430FR2355 launchpad:

/cfs-file/__key/communityserver-discussions-components-files/196/7230.BQ769x2_5F00_MSP430FR2355_5F00_BasicCommandExamples_5F00_I2C_5F00_v01.c

/cfs-file/__key/communityserver-discussions-components-files/196/2677.bq769x2_5F00_Ctrl_5F00_FR2355.h

Best regards,

Matt

0 Zoe Dittman over 5 years ago in reply to Matt Sunna

TI__Prodigy 170 points

Can I reprogram the microcontroller in the development board? Does it have JTAG pin option?

0 Matt Sunna over 5 years ago in reply to Zoe Dittman

TI__Guru* 81034 points

Hi Zoe,

Yes, it should be possible. There is a 4-pin connector for JTAG in the bottom corner of the EVM close to the USB connector. However, the EVM would no longer be able to communicate with BQStudio if you change the program on the microcontroller.

Best regards,

Matt

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BQ76952: General usage questions