V2.0

- Improved build system
- Added stack debug framework
- Removed not used source files
- Added support DMX delta output
- Added Manufacturer PIDs (https://www.gd32-dmx.org/rdm.html)
- Added support for void __libc_init_array(void)
- Changed the layout of the config store.
    - Before upgrading the firmware it is advised to make a backup of the configuration.
    - After the upgrade, then restore the saved configuration.
- lib-artnet : V1.58
- lib-e131 : V1.27
- Removed  lib-artnet4
- Improved Network abstraction layer
- Improved PHY initialization process
- Improved embedded HTTP server
- Added support for secondary (permanent) IP address
    - The node is always available on the secondary IP address (2.x.x.x) for ping and http requests.

.gitignore

@@ -50,6 +50,8 @@
 */lib_gd32/*
 *.su
 *.list
+*.map
+*.size
 
 *.bin
 udp_send
@@ -60,3 +62,4 @@ gd32f30x*.*
 lib-gd32/gd32f30x/*
 gd32f4xx*.*
 lib-gd32/gd32f4xx/*
+

firmware-template-gd32/Includes.mk

@@ -1,8 +1,57 @@
-INCLUDES:= -I./include -I../include -I../lib-hal/include -I../lib-debug/include 
+INCLUDES:=-I./include -I../include -I../lib-hal/include -I../lib-debug/include 
 INCLUDES+=$(addprefix -I,$(EXTRA_INCLUDES))
 INCLUDES+=-I../firmware-template-gd32/include
 INCLUDES+=-I../firmware-template-gd32/template
 INCLUDES+=-I../lib-gd32/${FAMILY}/${FAMILY_UC}_standard_peripheral/Include
 INCLUDES+=-I../lib-gd32/${FAMILY}/CMSIS
 INCLUDES+=-I../lib-gd32/${FAMILY}/CMSIS/GD/${FAMILY_UC}/Include
-INCLUDES+=-I../lib-gd32/include
+INCLUDES+=-I../lib-gd32/include
+
+USB_HOST=
+ifeq ($(findstring ENABLE_USB_HOST,$(DEFINES)), ENABLE_USB_HOST)
+	USB_HOST=1
+endif
+ifeq ($(findstring ENABLE_USB_HOST,$(MAKE_FLAGS)), ENABLE_USB_HOST)
+	USB_HOST=1
+endif
+
+USB_HOST_MSC=
+ifeq ($(findstring ENABLE_USB_HOST,$(DEFINES)), ENABLE_USB_HOST)
+	USB_HOST_MSC=1
+endif
+ifeq ($(findstring ENABLE_USB_HOST,$(MAKE_FLAGS)), ENABLE_USB_HOST)
+	USB_HOST_MSC=1
+endif
+
+ifdef USB_HOST
+	INCLUDES+=-I../lib-gd32/device/usb
+	INCLUDES+=-I../lib-hal/device/usb/host/gd32
+endif
+
+ifeq ($(findstring gd32f20x,$(FAMILY)), gd32f20x)
+	ifdef USB_HOST
+		INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F20x_usbfs_library/driver/Include
+		INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F20x_usbfs_library/host/core/Include
+		INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F20x_usbfs_library/ustd/common
+		ifdef USB_HOST_MSC
+			INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F20x_usbfs_library/host/class/msc/Include
+			INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F20x_usbfs_library/ustd/class/msc
+		endif
+	endif
+endif
+
+ifeq ($(findstring gd32f4xx,$(FAMILY)), gd32f4xx)
+  ifdef USB_HOST	
+  	INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F4xx_usb_library/driver/Include
+		INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F4xx_usb_library/host/core/Include
+		INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F4xx_usb_library/ustd/common
+		ifdef USB_HOST_MSC
+			INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F4xx_usb_library/host/class/msc/Include
+			INCLUDES+=-I../lib-gd32/${FAMILY}/GD32F4xx_usb_library/ustd/class/msc
+		endif
+	endif
+endif
+
+ifdef USB_HOST_MSC
+		EXTRA_INCLUDES+=../lib-hal/ff12c
+endif

firmware-template-gd32/Mcu.mk

@@ -0,0 +1,72 @@
+ifndef MCU
+	$(error MCU is not set)
+endif
+
+MCU_UC=$(shell echo $(MCU) | rev | cut -c3- | rev )
+MCU_LC=$(shell echo $(MCU_UC) | tr A-Z a-z )
+
+$(info $$MCU [${MCU}])
+$(info $$MCU_LC [${MCU_LC}])
+$(info $$MCU_UC [${MCU_UC}])
+
+ifeq ($(strip $(MCU)),GD32F103RC)
+	LINKER=$(FIRMWARE_DIR)gd32f103rc_flash.ld
+	FAMILY=gd32f10x
+	LINE=gd32f10x_hd
+endif
+
+ifeq ($(strip $(MCU)),GD32F107RC)
+	LINKER=$(FIRMWARE_DIR)gd32f107rc_flash.ld
+	FAMILY=gd32f10x
+	LINE=gd32f10x_cl
+endif
+
+ifeq ($(strip $(MCU)),GD32F207VC)
+	LINKER=$(FIRMWARE_DIR)gd32f207vc_flash.ld
+	FAMILY=gd32f20x
+	LINE=gd32f20x_cl
+endif
+
+ifeq ($(strip $(MCU)),GD32F207RG)
+	LINKER=$(FIRMWARE_DIR)gd32f207rg_flash.ld
+	FAMILY=gd32f20x
+	LINE=gd32f20x_cl
+endif
+
+ifeq ($(strip $(MCU)),GD32F303RC)
+	LINKER=$(FIRMWARE_DIR)gd32f303rc_flash.ld
+	FAMILY=gd32f30x
+	LINE=gd32f30x_hd
+endif
+
+ifeq ($(strip $(MCU)),GD32F407RE) 
+  LINKER=$(FIRMWARE_DIR)gd32f407re_flash.ld
+  FAMILY=gd32f4xx
+  LINE=gd32f407
+endif
+
+ifeq ($(strip $(MCU)),GD32F450VE) 
+  LINKER=$(FIRMWARE_DIR)gd32f450ve_flash.ld
+  FAMILY=gd32f4xx
+  LINE=gd32f450
+endif
+
+ifeq ($(strip $(MCU)),GD32F450VI) 
+  LINKER=$(FIRMWARE_DIR)gd32f450vi_flash.ld
+  FAMILY=gd32f4xx
+  LINE=gd32f450
+endif
+
+ifndef LINKER
+	$(error MCU is not configured)
+endif
+
+FAMILY_UC=$(shell echo $(FAMILY) | tr a-w A-W)
+
+$(info $$FAMILY [${FAMILY}])
+$(info $$FAMILY_UC [${FAMILY_UC}])
+
+LINE_UC=$(shell echo $(LINE) | tr a-z A-Z)
+
+$(info $$LINE [${LINE}])
+$(info $$LINE_UC [${LINE_UC}])

firmware-template-gd32/Rules.mk

@@ -1,3 +1,5 @@
+$(info "Rules.mk")
+
 PREFIX ?= arm-none-eabi-
 
 CC	 = $(PREFIX)gcc
@@ -6,14 +8,8 @@ AS	 = $(CC)
 LD	 = $(PREFIX)ld
 AR	 = $(PREFIX)ar
 
-FAMILY?=gd32f20x
 BOARD?=BOARD_GD32F207C_EVAL
-
-FAMILY:=$(shell echo $(FAMILY) | tr A-Z a-z)
-FAMILY_UC=$(shell echo $(FAMILY) | tr a-w A-W)
-
-$(info $$FAMILY [${FAMILY}])
-$(info $$FAMILY_UC [${FAMILY_UC}])
+ENET_PHY?=DP83848
 
 # Output 
 TARGET=gd32f207.bin
@@ -24,17 +20,23 @@ BUILD=build_gd32/
 # Input
 SOURCE=./
 FIRMWARE_DIR=./../firmware-template-gd32/
-LINKER=$(FIRMWARE_DIR)gd32f207vc_flash.ld
 
+DEFINES:=$(addprefix -D,$(DEFINES))
+DEFINES+=-DCONFIG_STORE_USE_ROM
+
+ifeq ($(findstring ARTNET_VERSION=4,$(DEFINES)),ARTNET_VERSION=4)
+	ifeq ($(findstring ARTNET_HAVE_DMXIN,$(DEFINES)),ARTNET_HAVE_DMXIN)
+		DEFINES+=-DE131_HAVE_DMXIN
+	endif
+endif
+
+MCU=GD32F207VC
+
+include ../firmware-template-gd32/Mcu.mk
 include ../firmware-template/libs.mk
 
 LIBS+=c++ c gd32
 
-$(info [${LIBS}])
-
-DEFINES:=$(addprefix -D,$(DEFINES))
-DEFINES+=-DCONFIG_STORE_USE_ROM
-
 include ../firmware-template-gd32/Includes.mk
 
 # The variable for the libraries include directory
@@ -51,15 +53,17 @@ LDLIBS:=$(addprefix -l,$(LIBS))
 # The variables for the dependency check 
 LIBDEP=$(addprefix ../lib-,$(LIBS))
 
+$(info $$BOARD [${BOARD}])
+$(info $$ENET_PHY [${ENET_PHY}])
+$(info $$DEFINES [${DEFINES}])
+$(info $$LIBS [${LIBS}])
 $(info $$LIBDEP [${LIBDEP}])
 
-COPS=-DBARE_METAL -DGD32 -DGD32F20X_CL -D$(BOARD)
-COPS+=$(DEFINES) $(MAKE_FLAGS) $(INCLUDES)
-COPS+=$(LIBINCDIRS)
+COPS=-DBARE_METAL -DGD32 -DGD32F20X_CL -D$(MCU) -D$(BOARD) -DPHY_TYPE=$(ENET_PHY)
+COPS+=$(DEFINES) $(MAKE_FLAGS) $(INCLUDES) $(LIBINCDIRS)
 COPS+=-Os -mcpu=cortex-m3 -mthumb
 COPS+=-nostartfiles -ffreestanding -nostdlib
 COPS+=-fstack-usage
-COPS+=-Wstack-usage=10240
 COPS+=-ffunction-sections -fdata-sections
 
 CPPOPS=-std=c++11 
@@ -119,7 +123,9 @@ lisdep: $(LIBDEP)
 $(LIBDEP):
 	$(MAKE) -f Makefile.GD32 $(MAKECMDGOALS) 'MAKE_FLAGS=$(DEFINES)' -C $@ 
 
+#
 # Build bin
+#
 
 $(BUILD_DIRS) :
 	mkdir -p $(BUILD_DIRS)
@@ -133,6 +139,6 @@ $(BUILD)main.elf: Makefile.GD32 $(LINKER) $(BUILD)startup_$(FAMILY)_cl.o $(OBJEC
 	$(PREFIX)size -A -x $(BUILD)main.elf
 
 $(TARGET) : $(BUILD)main.elf 
-	$(PREFIX)objcopy $(BUILD)main.elf -O binary $(TARGET)	
+	$(PREFIX)objcopy $(BUILD)main.elf -O binary $(TARGET) --remove-section=.sram1* --remove-section=.sram2*
 
 $(foreach bdir,$(SRCDIR),$(eval $(call compile-objects,$(bdir))))

firmware-template-gd32/calculate_unused_ram.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+if [ $# -lt 2 ]; then
+  echo "Usage: $0 <size_file> <linker_script>"
+  exit 1
+fi
+
+size_file="$1"
+linker_script="$2"
+
+used_stack=$(grep ".stack" "$size_file" | awk '{print $2}')
+used_heap=$(grep ".heap" "$size_file" | awk '{print $2}')
+used_data=$(grep '.data' "$size_file" | tail -n 1 | awk '{print $2}')
+used_bss=$(grep ".bss" "$size_file" | awk '{print $2}')
+
+total_ram=$(grep "RAM (xrw)" "$linker_script" | awk '{print $NF}' | sed 's/K$//' | awk '{printf "%d", $0 * 1024}')
+unused_ram=$(( $(echo $total_ram) - $(echo $used_stack) - $(echo $used_heap) - $(echo $used_data) - $(echo $used_bss) ))
+
+cat $1
+echo "RAM $total_ram bytes, Unused: $unused_ram bytes"
+echo