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JacobV
JacobV
Associate II
June 16, 2017
Question

Migration from STM32F429ZI to SMT32H7 complexity?

  • June 16, 2017
  • 2 replies
  • 2004 views

Posted on June 16, 2017 at 02:07

Hi there,

Has anyone been considering migrating from the STM32F4 chip to the upcoming H7 chip, and how involved\possible that process might be? My specific chip is the STM32F4ZIT6, but I'm curious about others' experiences with migration within the ST family.

I'm aware of the

http://www.st.com/content/ccc/resource/technical/document/application_note/73/76/21/47/ef/d0/4c/16/DM00164538.pdf/files/DM00164538.pdf/jcr:content/translations/en.DM00164538.pdf

(Migration STM32F4-->STM32F7) and the

http://www.st.com/content/ccc/resource/technical/document/application_note/group0/61/f7/a2/df/11/18/48/f2/DM00337702/files/DM00337702.pdf/jcr:content/translations/en.DM00337702.pdf

(Migration STM32F7 --> STM32H7x3) documents and I'm currenly working through those (they insinuate that F4 -> H7 is possible), but I figured I'd ask to see if anyone had experience or opinions on this.

Thanks!

#stm32f4 #stm32h7 #migration

This topic has been closed for replies.

2 replies

Uwe Bonnes
Uwe Bonnes
Chief
June 19, 2017
Posted on June 19, 2017 at 13:46

The reference manuals and demo boards are not yet general available. So 'normal' people could not look at the migration problems carefully. And other people with access to doco and board are probably still under NDA.

Uwe Bonnes
Uwe Bonnes
Chief
June 19, 2017
Posted on June 19, 2017 at 14:37

Oops, rm0433 is available!

http://www.st.com/resource/en/reference_manual/dm00314099.pdf

 
Asantos
Asantos
Associate III
June 19, 2017
Posted on June 19, 2017 at 21:19

Hi,

  I'm trying to figure out if the H7 ADC will have the same 5 MSPS sampling rate for 12 bits as L4. The STM32CubeMx show that the maximum ADC clock frequency is 80 MHZ and the H7 reference manual shows that ADC hardware is very similar to the L4 ADC hardware.

So, can I assume that the H7 ADC sampling rate for 12 bits is 5 MSPS?

 Ari.

lucas239955_stm1
lucas239955_stm1
Visitor II
June 20, 2017
Posted on June 20, 2017 at 05:04

Hi Ari,

It looks like the ADC hardware is different. 

From the STM32H7753xI data sheet (

http://www.st.com/resource/en/data_brief/stm32h753xi.pdf

)

'3× ADCs with 16-bit max. resolution (14 bits 2.7 MSPS, 16 bits 168 kSPS)'

From this I understand that in 14-bit interleaved mode, you could expect 8.1MSPS.

For 16-Bit interleaved mode you could expect 0.504MSPS (504KSPS)

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