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fix(board): Alfredo NoU3 pins_arduino.h uses uint8_t but it causes error with esp32-hal-gpio.h #11206

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Description of Change

Starting in core version 3.2.0, this pins_arduino.h file fails to compile without stdint.h

Tests scenarios

Tested with 3.1.3 and 3.2.0. File compiles in the former but not the latter (uint8_t not defined). I'm curious what caused this change but just hoping this fixes in. I would be surprised if other pins files don't have this issue.

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github-actions bot commented Mar 31, 2025

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@SuGlider SuGlider self-requested a review April 6, 2025 15:09
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I don't think that this change is necessary.
@SaintSampo - Please provide an example of why this is a fix for an issue. What issue is it?

@SuGlider SuGlider added Resolution: Awaiting response Waiting for response of author Status: Needs investigation We need to do some research before taking next steps on this issue labels Apr 6, 2025
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joshua-8 commented Apr 6, 2025

Hi @SuGlider, thank you for taking a look at this issue for us.

I found that I could not compile for an Alfredo NoU3 board with esp32 v3.2.0.
The Alfredo NoU3 pins_arduino.h uses the uint8_t type for some pins https://github.com/SaintSampo/arduino-esp32/blob/1b79810df333c46517a634c3e8a666d47ad55ced/variants/alfredo-nou3/pins_arduino.h#L21-L27

While Arduino.h includes stdint.h, pins_arduino.h does not include Arduino.h, and pins_arduino.h appears to compile before another file can include Arduino.h.

Here's an example that failed to compile. https://github.com/AlfredoSystems/Alfredo-NoU3/tree/main/examples/MotorParty

I have attached the output from the Arduino IDE showing that with esp32 version 3.2.0 the example only compiles when I edited pins_arduino.h on my computer to add stdint.h.

failed compile log with esp32 version 3.2.0.txt
successful compiling with old esp32 version 3.0.7.txt
successful compiling with edited esp32 version 3.2.0.txt

Is there any harm in including stdint.h in pins_arduino.h? One other potential solution would be to change the variable type used for the pins in pins_arduino.h to byte.

Thank you, espressif community, for your time.
-- joshua-8

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SuGlider commented Apr 6, 2025

@joshua-8 - Thanks for the explanation and log files.
The issue is not in Alfredo NoU3 pins_arduino.h file.
It is due to wrong include order in cores\esp32\esp32-hal-gpio.h.

The way to fix it for this board and all other possible boards that may use stdint.h types is by fixing cores\esp32\esp32-hal-gpio.h.

I'll push the commits necessary to this PR.

Thanks.

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SuGlider commented Apr 6, 2025

@joshua-8 - Please test this PR with the target board and sketches. It shall be solved now.
The proposed changes will fix not just Alfredo NoU3 pins_arduino.h file, but all other boards that may want to use stdint or stdbool types.

@SuGlider SuGlider self-assigned this Apr 6, 2025
@SuGlider SuGlider changed the title fix(board): Alfredo NoU3 include stdint.h fix(board): Alfredo NoU3 pins_arduino.h uses uint8_t but it causes error with esp32-hal-gpio.h Apr 6, 2025
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SuGlider commented Apr 6, 2025

@SaintSampo @joshua-8 - My bad.... actually all other pins_arduino.h files include <stdint>... This boards should do the same.
The initial PR was correct. Reverting it to the original PR.

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github-actions bot commented Apr 6, 2025

Test Results

 76 files   76 suites   12m 40s ⏱️
 38 tests  38 ✅ 0 💤 0 ❌
241 runs  241 ✅ 0 💤 0 ❌

Results for commit df47d76.

@SuGlider SuGlider self-requested a review April 6, 2025 20:49
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LGTM

@SuGlider SuGlider added Status: Pending Merge Pull Request is ready to be merged Type: 3rd party Boards and removed Resolution: Awaiting response Waiting for response of author Status: Needs investigation We need to do some research before taking next steps on this issue labels Apr 6, 2025
@SuGlider SuGlider added this to the 3.2.1 milestone Apr 6, 2025
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Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

MemoryFLASH [bytes]FLASH [%]RAM [bytes]RAM [%]
TargetDECINCDECINCDECINCDECINC
ESP32P4000.000.00000.000.00
ESP32S30⚠️ +160.000.00000.000.00
ESP32S2000.000.00000.000.00
ESP32C3000.000.00000.000.00
ESP32C6000.000.00000.000.00
ESP32H2000.000.00000.000.00
ESP32💚 -16⚠️ +160.000.00000.000.00
Click to expand the detailed deltas report [usage change in BYTES]
TargetESP32P4ESP32S3ESP32S2ESP32C3ESP32C6ESP32H2ESP32
ExampleFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAMFLASHRAM
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