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Posted to commits@nuttx.apache.org by "michallenc (via GitHub)" <gi...@apache.org> on 2026/03/27 08:35:53 UTC
[PR] nucleo-l476rg: fix ADC driver compilation [nuttx]
michallenc opened a new pull request, #18637:
URL: https://github.com/apache/nuttx/pull/18637
## Summary
The definition of ADC channels should not depend on option `CONFIG_INPUT_AJOYSTICK` at all. Moreover, the include of stm32l4_adc.h file was missing (PWM include was used instead), causing the implicit declaration of `stm32l4_adc_initialize` function.
```
stm32_adc.c:128:9: error: implicit declaration of function 'stm32l4_adc_initialize'; did you mean 'stm32l4_usbinitialize'? [-Wimplicit-function-declaration]
128 | adc = stm32l4_adc_initialize(1, g_adc1_chanlist, ADC1_NCHANNELS);
| ^~~~~~~~~~~~~~~~~~~~~~
| stm32l4_usbinitialize
stm32_adc.c:128:7: error: assignment to 'struct adc_dev_s *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
128 | adc = stm32l4_adc_initialize(1, g_adc1_chanlist, ADC1_NCHANNELS);
| ^
make[2]: *** [/home/michal/Michal/projects/nuttx/core/boards/Board.mk:83: stm32_adc.o] Error 1
make[1]: *** [Makefile:187: board/libboard.a] Error 2
make: *** [tools/Unix.mk:565: nuttx] Error 2
```
## Impact
ADC now works on Nucleo-L476RG.
## Testing
With standard ADC example application and pin A5 against GDN and 3.3 V:
```
Sample:
1: channel: 1 value: 0
Sample:
1: channel: 1 value: 0
Sample:
1: channel: 1 value: 0
Sample:
1: channel: 1 value: 4090
Sample:
1: channel: 1 value: 4090
Sample:
1: channel: 1 value: 4091
```
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Re: [PR] nucleo-l476rg: fix ADC driver compilation [nuttx]
Posted by "xiaoxiang781216 (via GitHub)" <gi...@apache.org>.
xiaoxiang781216 merged PR #18637:
URL: https://github.com/apache/nuttx/pull/18637
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