drivers: adc: add a driver for the CH32V003 ADC #88203
Open
+299
−0
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
github-actions
bot
added
platform: WinChipHead
area: ADC
github-actions
bot
requested review from
anangl,
carlocaione,
edersondisouza,
fkokosinski,
gmarull,
kartben,
katsuster,
kgugala,
mgielda,
nashif,
npitre,
tgorochowik and
ycsin
There was a problem hiding this comment.
Copilot reviewed 4 out of 9 changed files in this pull request and generated 2 comments.
Files not reviewed (5)
- drivers/adc/CMakeLists.txt: Language not supported
- drivers/adc/Kconfig: Language not supported
- drivers/adc/Kconfig.ch32v00x: Language not supported
- dts/riscv/wch/ch32v0/ch32v003.dtsi: Language not supported
- samples/drivers/adc/adc_dt/boards/ch32v003evt.overlay: Language not supported
The CH32V003 has a 8 channel, 10 bit onboard ADC. Add an immediate mode driver and the appropriate pinctrl bindings. Note that the CH32V003 GPIO pins have both a floating input and an analogue input mode, and the pinctrl is needed to put the pin in analogue mode. Signed-off-by: Michael Hope <[email protected]>
This demonstrates the ADC driver added in the previous commit. The sample reads A0 as well as two built-in channels - one that reports the internal 1.2 reference volatage and one that reports half the analog supply voltage. Signed-off-by: Michael Hope <[email protected]>
|
Rebased to fix the merge conflict. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The CH32V003 has a 8 channel, 10 bit onboard ADC. Add an immediate
mode driver and the appropriate pinctrl bindings. Note that the
CH32V003 GPIO pins have both a floating input and an analogue input
mode, and the pinctrl is needed to put the pin in analogue mode.
Note that the CH32V003 has a 10 bit ADC while the others in the CH32V20x and 30x family have multiple 12 bit ADCs that seem to be significantly more advanced.