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rusefi/firmware/docs/custom_chibios.md

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rusEFI is trying to use latest stable ChibiOS with minimal changes

At the moment rusEFI uses https://github.com/rusefi/ChibiOS/tree/stable_20.3.x.rusefi

rusEFI custom version of ChibiOS has the following changes:

*) LSE auto-detection/fallback, RUSEFI_STM32_LSE_WAIT_MAX/RUSEFI_STM32_LSE_WAIT_MAX_RTCSEL

TODO items below this line need to be reviewed, seems to NOT be up to date with 20.3 patch

*) minor OS monitoring and maintainability fixes: chDbgStackOverflowPanic allows to know which thread has stack overflow ON_LOCK_HOOK is used to measure durations of critical sections

*) MMC timeout waitCounter

) Support for half/timeout-ISR for UART-DMA in /os/hal/include/uart.h and os/hal/ports/STM32/LLD/USARTv1/uart_lld. by andreika

Weird changes without an explanation:

  1. Uncommented "ASMXOBJS" support in os/common/ports/ARMCMx/compilers/GCC/rules.mk

  2. Use local "struct tm *t" in os/hal/ports/STM32/LLD/RTCv1/rtc_lld.c

  3. Fixes for UART4-UART8, USART_ISR_* flags USART_CR1_M in os/hal/ports/STM32/LLD/USARTv2/serial_lld.c and os/hal/ports/STM32/LLD/USARTv2/uart_lld.c

  4. Use QueryPerformanceCounter() instead of POSIX gettimeofday() in os/rt/ports/SIMIA32/chcore.c

New files: os/common/startup/SIMIA32/compilers/GCC/rules.mk os/hal/ports/simulator/posix/*