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Associate
May 9, 2024
Question

STM32H753 SPI data rate

  • May 9, 2024
  • 5 replies
  • 1769 views

Hello. Is the STM32H753 able to directly interface with a slave on the SPI bus, which continuously produces data at a rate of 40 Mbps for several hours? What would be the current consumption rate for such a case?

Thank you

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5 replies

AScha.3
Super User
May 9, 2024

Hi,

the 40M speed is no problem, see ds :

AScha3_0-1715283106789.png

100M max , slave or master.

 

> What would be the current consumption rate for such a case?

Same as if not use SPI , almost. You can check it in Cube -> Tools ...power consumption.

 

> which continuously produces data at a rate of 40 Mbps for several hours?

So this might be a problem : what you wanna do with these 50 GB on a cpu with 1MB RAM ??

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David Littell
Senior II
May 9, 2024

@AScha.3 wrote:

...

> which continuously produces data at a rate of 40 Mbps for several hours?

So this might be a problem : what you wanna do with these 50 GB on a cpu with 1MB RAM ??


Double-buffer /dev/null.  (Those who know, know.)  ;)