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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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| .. | ||
| arch_alarm.c | ||
| arch_rtc.c | ||
| arch_timer.c | ||
| capture.c | ||
| CMakeLists.txt | ||
| cs2100-cp.c | ||
| ds3231.c | ||
| ds3231.h | ||
| goldfish_timer.c | ||
| Kconfig | ||
| Make.defs | ||
| mcp794xx.c | ||
| mcp794xx.h | ||
| oneshot.c | ||
| pcf85263.c | ||
| pcf85263.h | ||
| pl031.c | ||
| pwm.c | ||
| rpmsg_rtc.c | ||
| rtc.c | ||
| rx8010.c | ||
| rx8010.h | ||
| timer.c | ||
| watchdog.c | ||