mirror of
https://github.com/NawfalMotii79/PLFM_RADAR.git
synced 2026-06-09 06:57:15 +00:00
Jason
52977fb488
First of three planned PRs to produce a bootable STM32F746ZGT7 firmware
image from the sources already in-tree. The original CubeIDE project
(.ioc + generated Core/Drivers/Middlewares) never made it into the repo,
so the build is being reconstructed from scratch against the vendored HAL.
Scope of this PR:
- Pin arm-none-eabi-gcc 15 (brew --cask gcc-arm-embedded) as the
toolchain for local macOS builds.
- Vendor trimmed copies of the four upstream trees needed by a minimal
STM32F7 project:
* CMSIS_5 5.9.0 Cortex-M7 Core/Include subset (256 KB)
* cmsis_device_f7 v1.2.8 F746-only device header + startup (1 MB)
* stm32f7xx_hal_driver v1.3.1 full HAL Inc/Src (9.3 MB)
* stm32_mw_usb_device v2.11.3 Core + Class/CDC (200 KB)
Total vendor tree: 11 MB, 228 files. VERSION files pin each drop.
- Add Makefile targeting -mcpu=cortex-m7 -mfpu=fpv5-sp-d16 -mfloat-abi=hard.
`make compile` produces 150 objects covering:
* all enabled HAL modules (GPIO/EXTI/DMA/RCC/FLASH/PWR/I2C/CORTEX/
IWDG/SPI/TIM/UART/PCD per stm32f7xx_hal_conf.h)
* the no-os ADI middleware layer
* ADAR1000/ADF4382/AD9523/BMP180/GY-85/TinyGPS++ drivers
* um982_gps, platform_noos_stm32, system_stm32f7xx, startup
Deliberately excluded (need PR 2 Cube glue):
* main.cpp / gps_handler.cpp — require usb_device.h, usbd_cdc_if.h
* USB Device Library sources — require user-provided usbd_conf.h
* *_template.c — ST user-copy stubs, never compiled
Incidental fixes folded in (these are hard blockers, not cosmetic):
- Delete 9_1_1_C_Cpp_Libraries/errno.h. It was an ADI armcc-only shim
whose EINVAL/ENOENT/etc. macros are gated on __ARMCC_VERSION and
relies on `#include_next <errno.h>`, which gcc refuses when the file
was found via quoted-include in the source directory. With the shim
gone every `#include "errno.h"` / `#include <errno.h>` now resolves
straight to newlib's, which is what every other TU in the tree
already assumed.
- Makefile demotes four gcc-15 defaults back to warnings
(-Wno-error=incompatible-pointer-types/discarded-qualifiers/
int-conversion/implicit-function-declaration). gcc 14 promoted
these to errors by default; the underlying diagnostics are
pre-existing type mismatches in the ADI no-os layer (e.g. const
qualifier dropped in stm32_dma.c:281 function-pointer assignment),
not new regressions. Real fixes are out of scope for PR 1.
Still to come:
PR 2 — hand-written Cube glue: STM32F746ZGTx_FLASH.ld, stm32f7xx_it.c,
stm32f7xx_hal_msp.c, SystemClock_Config, MX_*_Init for the
peripherals in main.cpp, usbd_conf.{h,c}, usbd_desc.c,
usbd_cdc_if.c, and a C main() shim that calls into app_main().
Closes the link; produces firmware.elf/.bin/.hex.
PR 3 — hardware bring-up: flash, iterate on HSE/PLL + DMA + SPI mode
against the real board until the existing firmware behaviour
is restored.
140 lines
5.2 KiB
Makefile
140 lines
5.2 KiB
Makefile
# ============================================================================
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# AERIS-10 STM32F746ZGT7 firmware build (PR 1: compile-only)
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# ============================================================================
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# Part: STM32F746ZGT7 (Cortex-M7, 1 MB flash, 320 KB RAM, 216 MHz, LQFP144)
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# Toolchain: arm-none-eabi-gcc 15.x (brew --cask gcc-arm-embedded)
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#
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# PR 1 scope: compile every source file to an object. Linking is expected to
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# fail because STM32CubeIDE-generated glue (main.c entry, SystemClock_Config,
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# MX_*_Init, stm32f7xx_it.c, stm32f7xx_hal_msp.c, linker script, USB CDC
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# glue) is missing. PR 2 will hand-write those files and close the link.
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#
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# Targets:
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# make -- compile all .c/.cpp/.s to objects (default)
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# make compile -- same
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# make link -- attempt to link (WILL FAIL in PR 1; left here so the
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# missing-symbol list drives PR 2 scope)
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# make clean -- remove build/
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# ============================================================================
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# ---- toolchain -------------------------------------------------------------
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PREFIX := arm-none-eabi-
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CC := $(PREFIX)gcc
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CXX := $(PREFIX)g++
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AS := $(PREFIX)gcc -x assembler-with-cpp
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LD := $(PREFIX)g++
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OBJCOPY := $(PREFIX)objcopy
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SIZE := $(PREFIX)size
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# ---- tree ------------------------------------------------------------------
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BUILD := build
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OBJDIR := $(BUILD)/obj
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VENDOR := vendor
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APP := 9_1_3_C_Cpp_Code
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LIB := 9_1_1_C_Cpp_Libraries
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# ---- target part + CPU flags ----------------------------------------------
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MCU := -mcpu=cortex-m7 -mthumb -mfpu=fpv5-sp-d16 -mfloat-abi=hard
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DEFS := -DSTM32F746xx -DUSE_HAL_DRIVER -DARM_MATH_CM7 -D__FPU_PRESENT=1
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# ---- include paths (order matters; app overrides vendor on ambiguity) -----
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INC := \
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-I$(APP) \
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-I$(LIB) \
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-I$(VENDOR)/cmsis_core/Include \
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-I$(VENDOR)/cmsis_device_f7/Include \
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-I$(VENDOR)/stm32f7xx_hal_driver/Inc \
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-I$(VENDOR)/stm32_mw_usb_device/Core/Inc \
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-I$(VENDOR)/stm32_mw_usb_device/Class/CDC/Inc
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# ---- warnings / optimisation ----------------------------------------------
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OPT := -Og -g3
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WARN := -Wall -Wextra -Wno-unused-parameter -Wno-unused-function \
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-Wno-missing-field-initializers \
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-Wno-error=incompatible-pointer-types \
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-Wno-error=discarded-qualifiers \
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-Wno-error=int-conversion \
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-Wno-error=implicit-function-declaration
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COMMON := $(MCU) $(DEFS) $(INC) $(OPT) $(WARN) -ffunction-sections -fdata-sections -fno-common
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CFLAGS := $(COMMON) -std=gnu11
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CXXFLAGS := $(COMMON) -std=gnu++17 -fno-exceptions -fno-rtti -fno-threadsafe-statics
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ASFLAGS := $(MCU) $(DEFS) -g3
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# ---- sources ---------------------------------------------------------------
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# Application C/C++
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# main.cpp needs Cube-generated usb_device.h / usbd_cdc_if.h — PR 2 target.
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# Exclude from PR 1 compile; um982_gps.c/.h compile cleanly and stay in.
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APP_C := $(wildcard $(APP)/*.c)
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APP_CPP_ALL := $(wildcard $(APP)/*.cpp)
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APP_CPP := $(filter-out $(APP)/main.cpp, $(APP_CPP_ALL))
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LIB_C := $(wildcard $(LIB)/*.c)
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# gps_handler.cpp includes usb_device.h (Cube glue) — deferred to PR 2
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LIB_CPP := $(filter-out $(LIB)/gps_handler.cpp, $(wildcard $(LIB)/*.cpp))
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# Vendor: all enabled HAL modules compile cleanly because each _hal_<x>.c is
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# guarded by `#ifdef HAL_<X>_MODULE_ENABLED` in stm32f7xx_hal_conf.h.
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# Build every .c in Src/ and let the guard do the filtering.
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# Exclude *_template.c — ST ships these as user-copy stubs, not compile targets
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HAL_C := $(filter-out %_template.c, $(wildcard $(VENDOR)/stm32f7xx_hal_driver/Src/*.c))
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# USB Device Library requires a user-written usbd_conf.h (Cube glue, PR 2).
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# PR 1 leaves this empty so the vendor tree compiles without that config.
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USB_C :=
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SYS_C := $(VENDOR)/cmsis_device_f7/Source/Templates/system_stm32f7xx.c
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STARTUP := $(VENDOR)/cmsis_device_f7/Source/Templates/gcc/startup_stm32f746xx.s
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SRCS_C := $(APP_C) $(LIB_C) $(HAL_C) $(USB_C) $(SYS_C)
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SRCS_CPP := $(APP_CPP) $(LIB_CPP)
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SRCS_S := $(STARTUP)
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OBJS := \
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$(patsubst %.c,$(OBJDIR)/%.o,$(SRCS_C)) \
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$(patsubst %.cpp,$(OBJDIR)/%.o,$(SRCS_CPP)) \
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$(patsubst %.s,$(OBJDIR)/%.o,$(SRCS_S))
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DEPS := $(OBJS:.o=.d)
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# ---- link (PR 2) -----------------------------------------------------------
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# Linker script is hand-written in PR 2 at linker/STM32F746ZGTx_FLASH.ld
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LDSCRIPT := linker/STM32F746ZGTx_FLASH.ld
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LDFLAGS := $(MCU) -T$(LDSCRIPT) -Wl,--gc-sections -Wl,-Map=$(BUILD)/firmware.map \
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-specs=nano.specs -specs=nosys.specs -static
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ELF := $(BUILD)/firmware.elf
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BIN := $(BUILD)/firmware.bin
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HEX := $(BUILD)/firmware.hex
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# ---- rules -----------------------------------------------------------------
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.PHONY: all compile link clean size
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all: compile
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compile: $(OBJS)
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@echo "compiled $(words $(OBJS)) objects"
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link: $(ELF)
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$(ELF): $(OBJS) $(LDSCRIPT)
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$(LD) $(LDFLAGS) $(OBJS) -o $@ -lm
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$(SIZE) $@
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$(OBJCOPY) -O binary $@ $(BIN)
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$(OBJCOPY) -O ihex $@ $(HEX)
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$(OBJDIR)/%.o: %.c
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@mkdir -p $(dir $@)
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$(CC) $(CFLAGS) -MMD -MP -c $< -o $@
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$(OBJDIR)/%.o: %.cpp
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@mkdir -p $(dir $@)
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$(CXX) $(CXXFLAGS) -MMD -MP -c $< -o $@
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$(OBJDIR)/%.o: %.s
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@mkdir -p $(dir $@)
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$(AS) $(ASFLAGS) -c $< -o $@
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clean:
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rm -rf $(BUILD)
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-include $(DEPS)
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