ADC STM32H745

[poeticbugbear]

Hello team,

I am using adc pins to detect voltage. In cube IDE I do adjustment to get ADC clock as 75MHz. But in the datasheet it is mentioned that for that package max adc clock is 50Mhz. Still cubeIDE(in .ioc file) does not shows any error and compiles the program. So currently adc is running at 75Mhz/50Mhz? Also refer the configurations below

Controller- STM32H745 LQFP144

ADC- 16 bits, trigger by timer4

[STTwo-32]

Hello @poeticbugbear and welcome to the ST Community :smiling_face_with_smiling_eyes:.

For the CubeMX ADC configuration, the maximum allowed frequency depends on the VOS selection. You can find the max frequency on the table 62 of the RM0399:

So, it may have of frequency of 160MHz with VOS1 or VOS0.

For the recommandations on the application note, those are recommandations to have an ADC transfer function with no missing codes.

Best Regards.

STTwo-32