[Backport v1.16] Support for Kakute H743-Wing #24801
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The CCMR1_PPM define for PPM input on channel 2 was incorrectly set to 2, which was setting bits for channel 1 instead of channel 2. This prevented PPM input from functioning properly on channel 2. Changed CCMR1_PPM for channel 2 from 2 to (1 << 8), which correctly configures the CC2S bits for input capture mode on TI2. This fixes an issue noted in the existing code comment: "FIXME! There is an interaction in the CCMR registers that prevents using Chan 1 as the timer and chan 2 as the PPM" Tested on STM32H743 with PPM input on PC7 (TIM8_CH2).
By setting RC_SERIAL_PORT_SHARED_PPM_PIN_GPIO_RX it is now possible to use the same pin on the STM32 for PPM input as well as serial input.
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No flaws found |
mrpollo
approved these changes
May 5, 2025
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Backport of #24669