DRV8711: Can DRV8711 operate without SPI?

TS Yang

Genius 4800 points

Part Number: DRV8711

Hi,

One of my customer willing to use DRV8711, but they do not want SPI control.

I'm afraid the DRV8711 can enable and work normally without SPI line.

But only related thread I found from E2E is below.

( https://e2e.ti.com/support/applications/motor_drivers/f/38/p/573994/2105671#2105671 )

the result of above thread is use SPI1.

Is it possible for DRV8711 with only Optional STEP/DIR Pins?

If then, how can I disable SPI controls? just make low pin 16?

thanks,

over 7 years ago

0 Rick Duncan over 7 years ago

TI__Guru** 114905 points

Hi TS,

SPI is required for DRV8711 operation. The SPI interface is required to enable the outputs (CTRL register, bit 0).

0 TS Yang over 7 years ago in reply to Rick Duncan

Genius 4800 points

Hi Rick,
thanks for your quick answer.
I understood that SPI is required.
So is there any software (code example for SPI communication) at TI?
I couldn't find from DRV8711 webpage.

thanks,
TS

0 Rick Duncan over 7 years ago in reply to TS Yang

TI__Guru** 114905 points

Hi TS,

I found this link in the MSP430 forum: e2e.ti.com/.../360588

I hope this helps.

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DRV8711: Can DRV8711 operate without SPI?