Motor Control and Smart Energy中的主题 Re: MC33HB2000

MC33HB2000

Giants — Sat, 17 Jan 2026 08:37:28 GMT

Hi there!

I start to work with this driver i made a pcb board and if i use a digital input work very well. I try to use SPI comunication but witout success so i'm here for ask a few question . First i use a STM32 family and my question are :

- I need the put ENBL pin at 1 even when i want use SPI ?

- Clock polarity active hight is right ?

- Clock phase 1ST edge is right ?

- Max frequency i read on datasheet up 10MHz but in another part of datasheet i read max 10Mhz so the right frequency is ?

- if i want read the register i need to send 0x00 for read the device identification 0x2000 for read status ect ect and set the bit 15 if i want write right ?

Because i try and right now dosen't work and yes i put the CS low befor the send data .

Sorry for all this question

Thank you

Sergio

Re: MC33HB2000

JozefKozon — Mon, 19 Jan 2026 06:23:21 GMT

Hi Sergio,

- I need the put ENBL pin at 1 even when i want use SPI ?

[A] Yes, for both the ENBL pin must be logic high.

- Clock polarity active high is right ?

[A] Correct. The SCLK line is active high, CPOL=0.

- Clock phase 1ST edge is right ?

[A] This is incorrect. The data are sampled on SCLK falling edge, (2nd edge), CPHA=1. This deduces the SPI mode is 1.

- Max frequency i read on datasheet up 10MHz but in another part of datasheet i read max 10Mhz so the right frequency is?

[A] Yes, the maximum HB2000 SPI operation is 10 MHz.

- if i want read the register i need to send 0x00 for read the device identification 0x2000 for read status ect ect and set the bit 15 if i want write right ?

[A] Please find attached SPI HBridge SW driver. Included is a Programming Guide document.

With Best Regards,

Jozef

Re: MC33HB2000

Giants — Mon, 19 Jan 2026 09:37:45 GMT

Thank you soo much for your help i will try tonight when i back at home.

Yesterday i find this document on line .

Re: MC33HB2000

JozefKozon — Mon, 19 Jan 2026 10:34:11 GMT

Dear Sergio,

you welcome. Have a nice day.

With Best Regards,

Jozef

Re: MC33HB2000

Giants — Tue, 20 Jan 2026 13:56:38 GMT

Thank you for the support , now work very well.

Sergio