imxrt: add support for PWM synchronization #7096
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This commit allows the PWM modules to be synchronized by an external signal (other PWM module for example). The sync source can be selected from configuration. PWM module can also now generate a trigger when its timer reaches the duty cycle. This trigger is used for the synchronization of other modules. It can also be used for triggering ADC for example in the future. Thanks to Rastislav Pavlanin and Jan Spurek from NXP support for suggestion which helped to solve the inter-module PWM synchronization task. Signed-off-by: Michal Lenc <michallenc@seznam.cz>
xiaoxiang781216
approved these changes
Sep 14, 2022
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Summary
This commit allows the PWM modules to be synchronized by an external signal (other PWM module for example). The sync source can be selected from configuration.
PWM module can also now generate a trigger when its timer reaches the duty cycle. This trigger is used for the synchronization of other modules. It can also be used for triggering ADC for example in the future.
Thanks to Rastislav Pavlanin and Jan Spurek from NXP support for suggestion which helped to solve the inter-module PWM synchronization task.
Impact
iMXRT PWM driver only.
Testing
Tested on Teensy 4.1 board.