mirror of
https://github.com/MCKero6423/uv-k5-v3-emulator.git
synced 2026-10-02 03:15:36 +00:00
mckero
c0a09827ed
Adds a QEMU machine for the Puya PY32F071 (Cortex-M0+) so Quansheng UV-K5 V3 firmware can run on a PC. The firmware boots to its main loop in about five seconds and the LCD contents are readable. Register layouts come from the vendor CMSIS header shipped with the firmware rather than guesswork. Modelled: RCC, GPIO, ADC, both SPI controllers, DMA1 and the PY25Q16 flash; everything else answers through a logging catch-all, which is how the next thing worth modelling gets identified. Seven things had to be right before it would boot, each found by watching where the firmware stopped: flash aliased at the application offset, clock ready bits, self-clearing ADC calibration, SPI transfer flags, DMA-driven flash reads, SysTick poll acceleration, and the bit-banged transceiver bus idling low. SysTick needs explanation. SYSTICK_DelayUs polls the counter and accumulates differences; under emulation a register read costs far more relative to guest time, so a measured 120 ms delay would have taken about 7.7 hours. Lowering the clock does not help because the bottleneck is loop iterations, not counter speed. Reporting a value that runs ahead of the real counter does, via a new poll-boost property on SysTick. Guest time therefore runs fast during delays: fine for exercising menus and control flow, wrong for judging signal timing. Also includes the host build of the CW timing chain (harness, stubs, shim, tests), which compiles app/cwkeyer.c and app/cwmacro.c unmodified against stub drivers with a virtual clock and scripted paddle input. Known gap: keypad rows reach the firmware's scan and KEYBOARD_Poll returns the right key code, but the UI does not react yet. Not modelled, and not intended to be: radio behaviour. The transceiver chip has no public datasheet, so keying envelopes and emissions need real hardware.
75 lines
2.6 KiB
CMake
75 lines
2.6 KiB
CMake
# Host build of the CW timing chain. No cross-compiler, no linker script.
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#
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# Compiles the real app/cwkeyer.c, app/cwmacro.c and app/cwhardware.c against
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# stub drivers, so the tests exercise firmware code rather than a reimplementation.
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# The one exception is CW_ReadKeysForMode / pin configuration in cwhardware.c,
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# which read GPIO directly -- those are replaced, and the debounce above them is
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# not (it is part of the timing behaviour under test).
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cmake_minimum_required(VERSION 3.20)
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project(uvk5_sim C)
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_C_STANDARD_REQUIRED ON)
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# Path to the firmware checkout. Override with -DFIRMWARE_DIR=... if the layout
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# differs from the sibling clone this defaults to.
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set(FIRMWARE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../uvk5-sat" CACHE PATH
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"Firmware source tree containing App/")
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if(NOT EXISTS "${FIRMWARE_DIR}/App/app/cwkeyer.c")
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message(FATAL_ERROR
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"FIRMWARE_DIR does not look like the firmware tree: ${FIRMWARE_DIR}\n"
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"Pass -DFIRMWARE_DIR=/path/to/uvk5-sat")
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endif()
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add_library(sim_harness STATIC
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harness/sim_clock.c
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harness/sim_paddle.c
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harness/sim_record.c
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harness/sim_keyer.c
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stubs/driver_stubs.c
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stubs/cwhardware_stub.c
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stubs/firmware_globals.c
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)
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# Firmware sources compiled as-is.
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target_sources(sim_harness PRIVATE
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${FIRMWARE_DIR}/App/app/cwkeyer.c
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${FIRMWARE_DIR}/App/app/cwmacro.c
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)
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target_include_directories(sim_harness PUBLIC
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${CMAKE_CURRENT_SOURCE_DIR}
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${CMAKE_CURRENT_SOURCE_DIR}/shim # replaces MCU headers
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${FIRMWARE_DIR}/App
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)
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# ENABLE_CW_MODULATOR selects the CW code paths; the rest stay off so the stub
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# surface remains small. CW_KEYER_DEBUG routes the firmware's own tracing into
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# the recorder, which is useful when a scenario fails.
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target_compile_definitions(sim_harness PUBLIC
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ENABLE_CW_MODULATOR
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ENABLE_FEAT_NR7Y_CW
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)
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target_compile_options(sim_harness PRIVATE
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-Wall -Wextra -Wno-unused-parameter
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-g -O1
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-fsanitize=address,undefined
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)
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target_link_options(sim_harness PUBLIC -fsanitize=address,undefined)
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enable_testing()
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# Each scenario file is its own executable so a crash in one does not hide the
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# rest, and so ASan reports point at a single scenario.
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file(GLOB SIM_TESTS ${CMAKE_CURRENT_SOURCE_DIR}/tests/test_*.c)
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foreach(test_src ${SIM_TESTS})
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get_filename_component(test_name ${test_src} NAME_WE)
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add_executable(${test_name} ${test_src})
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target_link_libraries(${test_name} PRIVATE sim_harness)
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target_compile_options(${test_name} PRIVATE
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-Wall -Wextra -g -O1 -fsanitize=address,undefined)
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add_test(NAME ${test_name} COMMAND ${test_name})
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endforeach()
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