STM32H753 SPI data rate

[tariq]

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

[AScha.3]

Hi,

the 40M speed is no problem, see ds :

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 ??

[David Littell]

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@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 ??

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

[tariq]

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

I am planning on connecting the STM32 with a wifi 6 chip (through the SDIO interface) which will transmit the data as it is received. This should be fast enough so that it handles the incoming data rate for several hours right?

[AScha.3]

>This should be fast enough so that it handles the incoming data rate for several hours right?

I would say : "could be" . 

Try it, then you know.

[tariq]

Okay thank you