STM32H7A/7B Documentation.

[Asantos]

I wonder when the STM32H7A/7B documentation will be available.

The L5 documentation was released more than a year ago, and L5 is not yet available in stock at distributors. H7A / H7B are in stock and there is no sign of the documentation!

[Andreas Bolsch]

There is Embedded World 25th - 27th of Feb. I'd bet the official release of H7A/H7B will be there ...

And hopefully ST will have completed the paperwork for export by this time.

[Tesla DeLorean]

Thing is the more technically astute customers, and bleeding-edge users, have a far more direct relationship with sales and support, and access to silicon and documentation that is embargoed under NDA.

You're asking the wrong people, in the wrong place.

[Singh.Harjit]

Out of curiosity, I did a search on Google for STM32H7A and came across an ST GUI presentation in Chinese which had the following blurb (after translating it from Chinese):

Built-in large capacity SRAM optimizes BOM cost

• Supports HVGA 16bpp or WVGA 8 bpp without external RAM

Advanced graphics features

• Chrom-ART ™

• JPEG decoder

• TFT controller interface

• Chrom-GRC ™

Rich package

• QFP, BGA and CSP

• Support graphics interface from QFP64

HVGA @ 16bpp = 307200 bytes

WVGA @ 8bpp = 384000 bytes

So, RAM must be 512KB or higher if they support multiple simultaneous frame buffers.

[Asantos]

Documentation already available:

https://www.st.com/content/ccc/resource/sales_and_marketing/promotional_material/brochure/group0/f5/c6/39/e1/16/fc/4d/2b/brstm32h7/files/brstm32h7.pdf/jcr:content/translations/en.brstm32h7.pdf

https://www.st.com/content/ccc/resource/sales_and_marketing/promotional_material/flyer/group0/41/3b/68/6b/d4/c7/46/76/flstm32h7vl/files/flstm32h7vl.pdf/jcr:content/translations/en.flstm32h7vl.pdf

[Pavel A.]

More RAM is very welcome. But Ethernet is missing in both H7A and H7B variants.

What add-on Ethernet options exist for these chips?

-- pa

[Asantos]

A good choice would be the W5500 SPI ethernet controller from Wiznet. You have the option to use its internal tcp-ip stack in hardware, and the option to use it as normal ethernet controller using a software tcp-ip stack as the LwIP.

I think that the STM32H7B3-DK has a wi-fi module. So I believe that ST planned these chips for wireless and GUI applications.