Feature/arduino r4 minima timer - #17336
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acassis merged 3 commits intoNov 17, 2025
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- Added PWM driver support for the RA4M1 microcontroller using the GPT timer. - This driver supports Saw-wave mode and one of the two output channels (A or B). - Added necessary configurations in CMakeLists.txt, Kconfig, and Make.defs. - Created new header file for GPT. Signed-off-by: leocafonso <leocafonso@gmail.com>
- Added PWM support on Arduino R4 Minima board. This board has 5 PWM channels available using the GPT timer from the RA4M1 microcontroller. - Added a pwm config file to enable PWM supporting GTP2 GTIOCB on P102. Signed-off-by: leocafonso <leocafonso@gmail.com>
- Updated information about the RA4M1 microcontroller capabilities, including the General Purpose Timer (GPT). - Added information about the PWM driver support for the Arduino R4 Minima board using the GPT timer. Signed-off-by: leocafonso <leocafonso@gmail.com>
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xiaoxiang781216
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Summary
Added PWM support for RA4M1 and tested on arduino-r4-minima. It was added a new pwm config exposing the GPT2 OUTPUTB on Arduino pin 5 (~5)
Impact
Added GPT PWM mode on RA4M1
Testing
It was tested on arduino-r4-minima. Tested all possible PWM on the Arduino board
Test:
pwm frequency: 100Hz
duty: 50%