Skip to main content
svcguy
Associate III
Dec 14, 2021 3:00 AM UTC
Solved

CubeMX 6.4.0 STM32H750 Clock Issue

There seems to be a bug in the clock configuration for STM32H750XBHx. D1CPRE clock should be able to go up to 480MHz, but Cube won't take anything higher than 200MHz. HCLK is affected as well, can't set it to anything higher than 100MHz

Andy

This topic has been closed for replies.
TDK
TDKBest answer
Dec 14, 2021 3:59 AM UTC

No such issues here.

0693W00000HoUgAQAV.png 

Probably your VOS value is not compatible with 480 MHz. Should be VOS 0.

0693W00000HoUgFQAV.png 

"If you feel a post has answered your question, please click ""Accept as Solution""."

2 replies

TDK
TDKBest answer
Dec 14, 2021 3:59 AM UTC

No such issues here.

0693W00000HoUgAQAV.png 

Probably your VOS value is not compatible with 480 MHz. Should be VOS 0.

0693W00000HoUgFQAV.png 

"If you feel a post has answered your question, please click ""Accept as Solution""."
svcguy
svcguyAuthor
Associate III
Dec 14, 2021 1:16 PM UTC

Ahh. It’s my first time playing around with the H750 and didn’t know there was other settings involved with the CPU frequency. Thanks!