ADC sample time define namings

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#3 opened on Aug 6, 2025 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 38/100

Issue type: Bug
Clarity: Needs clarification
Activity status: Stale
Tech stack: c
Domain: embedded-iot

Research direction

Start by comparing the sample-time definitions in stm32mp2xx_hal_adc.h and stm32mp2xx_ll_adc.h with the STM32MP257 naming and values in reference manual RM0457. Determine whether the 2.5-cycle starting names match the manual; done means the discrepancy is confirmed and the affected definitions are consistently corrected or explained.

Written by the indexing model from the issue text.

Description

Hi,

I started looking at the ADC configuration for STM32MP257 and noticed that the sampling time define names looked different than in the reference manual.

This is from the driver file stm32mp2xx_hal_adc.h where the sample time starts from 2.5 cycles. The same values continue in the stm32mp2xx_ll_adc.h file.

And this is from the reference manual rm0457.

Is the driver file correct or has there happened naming scheme error?

Dominant language: C
Stars: 17
Forks: 5
PR merge metrics: No merged PRs in 30d

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