2771df6250
This commit introduces a timer capture driver for the STM32H7 series ported from the STM32 F series. The main changes include: - A new generic timer capture driver for STM32H7. - A lower-half driver to integrate with the NuttX capture subsystem. - Kconfig options to enable and configure capture for various timers. - Pin definitions for TIM1-4 capture inputs on the nucleo-h743zi. - An update to `cap_register_multiple` to handle multiple device registration. - An update to `stm32_bringup` to register the capture drivers. The current implementation is based on a driver originally for PWM input, and as such, it calculates duty cycle and frequency. It is also limited to a single capture channel per timer. The original implementation's `stm32_cap_init` in `arch/arm/src/stm32h7/stm32_capture.c` has been modified to accept a channel number instead of using a hardcoded 0 through `STM32_CAP_CHANNEL_COUNTER`. This serves as a foundation for future development of more comprehensive input capture capabilities on STM32H7 platforms. Tested by polling and reading `/dev/cap0-4` with `ioctl(fds[i], CAPIOC_FREQUENCE, freq)` while sending a square wave signal to appropriate pins and checking frequency. Also tested by bypassing upper half driver and setting up capture on TIM4 channels 1-4 as explained in #16762. Signed-off-by: Côme VINCENT <44554692+comejv@users.noreply.github.com> |
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| .. | ||
| linum-stm32h753bi | ||
| nucleo-h743zi | ||
| nucleo-h743zi2 | ||
| nucleo-h745zi | ||
| openh743i | ||
| stm32h745i-disco | ||
| stm32h747i-disco | ||
| stm32h750b-dk | ||
| weact-stm32h743 | ||