H750 value line

[BSant.1]

I'm starting a project with stm32h750vb. Is it really worth it? I see that people are having problems with ADC, SDMMC, I2C. Are these problems inevitable with the H7 family?

Btw, I want to make a 2 layer pcb with the h750, any advices?

[berendi]

ES0396 STM32H750xB and STM32H753xI device limitations

2.3 ADC

2.3.1 Conversion overlap may impact the ADC accuracy

Description

The following conditions may impact the ADC accuracy

• Several ADC conversions are running simultaneously

• ADC and DAC conversions are running simultaneously

Workaround

Avoid conversion overlapping. The application should ensure that conversions are performed sequentially.

The worrying part is that they don't specify the size of the "impact" this time, as opposed to the next items, where it is explicitly stated that accuracy is limited to 12 bits on certain channels when LSE is active, or to 10 bits when Vdda > 3.3V.

[Bassett.David]

Hello Berendi,

Thank you for your reply.

I just checked the Errata Sheet (ES0396 Rev 6) and found that these errata only apply to die Rev "Y", not the newer Rev "V". Thank goodness, because I would have been sunk otherwise!

Regards,

Dave