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-rw-r--r--avr/Makefile112
-rw-r--r--avr/main.c2
-rw-r--r--include/common.h2
-rw-r--r--mk/avr.rules.mk97
4 files changed, 120 insertions, 93 deletions
diff --git a/avr/Makefile b/avr/Makefile
index c392e43..89d13a0 100644
--- a/avr/Makefile
+++ b/avr/Makefile
@@ -6,10 +6,7 @@ DEBUG := 1
TARGET = stamp-monitor
-FATFSDIR := ../fatfs/source
-FATFS := $(FATFSDIR)/ff.c $(FATFSDIR)/ffunicode.c
-
-SRC_Z := ../z180/hdrom.c ../z180/cfboot.c ../z180/cpuinfo.c
+###############################################################################
SRC := main.c
SRC += cli.c cli_readline.c command.c command_tbl.c
@@ -19,6 +16,15 @@ SRC += cmd_loadihex.c cmd_loadcpm3.c cmd_sd.c cmd_fat.c
SRC += env.c con-utils.c print-utils.c getopt-min.c eval_arg.c
SRC += timer.c serial.c i2c.c bcd.c pcf8583.c mmc.c strerror.c
SRC += background.c z180-serv.c z80-if.c gpio.c
+
+FATFSDIR := ../fatfs/source
+FATFS := $(FATFSDIR)/ff.c $(FATFSDIR)/ffunicode.c
+ZDIR := ../z180
+SRC_Z := $(ZDIR)/hdrom.c $(ZDIR)/cfboot.c $(ZDIR)/cpuinfo.c
+
+# Sources that may depend on Z180 code:
+Z_DEP := $(shell grep -sl 'include[[:blank:]]\+"$(ZDIR)' $(SRC))
+
SRC += $(FATFS)
SRC += $(SRC_Z)
@@ -27,13 +33,7 @@ $(SRC_Z:%.c=%.o): CFLAGS += -D'const=const __flash'
# Place -D or -U options here
-CDEFS := -DF_CPU=$(F_CPU)UL
-
-ifeq ($(MCU),atmega1281)
- CDEFS += -DMCU_STRING=\"ATmega1281\"
-else
- CDEFS += -DMCU_STRING=\"ATmega2561\"
-endif
+#CDEFS +=
ifdef DEBUG
SRC += debug.c
@@ -43,31 +43,45 @@ endif
# Place -I options here
CINCS := -I../include
-OPT = s
-CSTANDARD = -std=gnu11
-CDEBUG = -g
-CWARN = -Wall -Wextra -Wstrict-prototypes -Wredundant-decls
-CTUNING = -fshort-enums -funsigned-bitfields -fpack-struct
-#CTUNING += -funsigned-char
-CTUNING += -mrelax -fno-common
-CTUNING += -fno-move-loop-invariants
-CTUNING += -fno-tree-loop-optimize
-#CTUNING += -fno-split-wide-types
-CEXTRA = -ffunction-sections -fdata-sections
-#CEXTRA += -flto
-CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA) $(CTUNING)
+# Extra C flags
+#TGT_CFLAGS += -funsigned-char
+TGT_CFLAGS += -fno-move-loop-invariants
+TGT_CFLAGS += -fno-tree-loop-optimize
+#TGT_CFLAGS += -fno-split-wide-types
+#TGT_CFLAGS += -flto
-
-# Linker Options - Create mapfile with cross reference
-LDFLAGS := -Wl,-Map=$(TARGET).map,--cref
-LDFLAGS += -Wl,--gc-sections
-
+###############################################################################
# Programming support using avrdude.
AVRDUDE_PROGRAMMER := dragon_isp
-AVRDUDE_PORT := usb
+# Uncomment, if the programmer is /not/ on USB.
+#AVRDUDE_PORT :=
+LFUSE = 0x97
+HFUSE = 0xD6
+EFUSE = 0xF5
+
+# Fuse low byte:
+# 0x97 = 1 0 0 1 0 1 1 1
+# ^ ^ \ / \--+--/
+# | | | +------- CKSEL 3..0 (Low Power Crystal)
+# | | +--------------- SUT 1..0 (Crystal Osc, slowly rising power)
+# | +------------------ CKOUT (Clock output enabled)
+# +-------------------- CKDIV8 (don't divide clock by 8)
+# Fuse high byte:
+# 0xd6 = 1 1 0 1 0 1 1 0
+# ^ ^ ^ ^ ^ \+/ ^---- BOOTRST (Boot Reset vector Enabled 0x3c00)
+# | | | | | +------- BOOTSZ 1..0 (Boot Flash section size 512 words)
+# | | | | + --------- EESAVE (Preserve EEPROM over chip erase)
+# | | | +-------------- WDTON (WDT not always on)
+# | | +---------------- SPIEN (allow serial programming)
+# | +------------------ JTAGEN (JTAG disabled)
+# +-------------------- OCDEN (OCD disabled)
+# Fuse Extended byte:
+# 0xf5 = 1 1 1 1 0 1 0 1
+# \-+-/
+# +------ Bodlevel (VCC = 2.7V)
# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
@@ -78,35 +92,23 @@ AVRDUDE_PORT := usb
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v
-#HFUSE = 0xDE
-#LFUSE = 0xFF
-#EFUSE = 0xFD
-
-# Fuse high byte:
-# 0xda = 1 1 0 1 1 1 1 0 <-- BOOTRST (Boot Reset vector Enabled 0x3c00)
-# ^ ^ ^ ^ ^ ^ ^------ BOOTSZ0
-# | | | | | +-------- BOOTSZ1 (Boot Flash section size 256 words)
-# | | | | + --------- EESAVE (don't preserve EEPROM over chip erase)
-# | | | +-------------- WDTON (WDT not always on)
-# | | +---------------- SPIEN (allow serial programming)
-# | +------------------ DWEN (debugWIRE is not enabled)
-# +-------------------- RSTDISBL (reset pin is enabled)
-# Fuse low byte:
-# 0x9f = 1 1 1 1 1 1 1 1
-# ^ ^ \ / \--+--/
-# | | | +------- CKSEL 3..0 (Low Power Crystal)
-# | | +--------------- SUT 1..0 (Crystal Osc, slowly rising power)
-# | +------------------ CKOUT (Clock output disabled)
-# +-------------------- CKDIV8 (don't divide clock by 8)
-# Fuse Extended byte:
-# 0x9f = 1 1 1 1 1 1 0 1
-# \-+-/
-# +------ Bodlevel (VCC = 2.7V)
+###############################################################################
+#.SECONDEXPANSION:
.PHONY: all build
# Default target.
all: build
-build: elf hex lss
+build: hex lss
+
+clean: clean_z
+$(Z_DEP:%.c=%.o): $(SRC_Z)
+
+$(SRC_Z):
+ $(MAKE) -C $(ZDIR) $(@F)
+
+.PHONY: clean_z
+clean_z:
+ $(MAKE) -C $(ZDIR) clean
include ../mk/avr.rules.mk
diff --git a/avr/main.c b/avr/main.c
index 486d992..6fd29a8 100644
--- a/avr/main.c
+++ b/avr/main.c
@@ -269,7 +269,7 @@ int main(void)
setup_system_time();
setup_fatfs();
- printf_P(PSTR("\n" MCU_STRING "+Z8S180 Stamp Monitor - Version: " VERSION " \n\n"));
+ printf_P(PSTR("\n" stringify(DEVICE_NAME) "+Z8S180 Stamp Monitor - Version: " VERSION " \n\n"));
setup_z180_serv();
diff --git a/include/common.h b/include/common.h
index 53e3276..4037ac8 100644
--- a/include/common.h
+++ b/include/common.h
@@ -47,6 +47,8 @@ struct bits {
#define GCC_BUG_61443 1
#endif /* PR61443 */
+#define DEVICE_NAME __AVR_DEVICE_NAME__
+
#else
// TODO: stm32
#endif /* __AVR__ */
diff --git a/mk/avr.rules.mk b/mk/avr.rules.mk
index 155397c..66fab58 100644
--- a/mk/avr.rules.mk
+++ b/mk/avr.rules.mk
@@ -1,37 +1,70 @@
+# Be silent per default, but 'make V=1' will show all compiler calls.
+ifneq ($(V),1)
+Q := @
+NULL := 2>/dev/null
+else
+QP := \#
+endif
-CC = avr-gcc
-OBJCOPY = avr-objcopy
-OBJDUMP = avr-objdump
-SIZE = avr-size
-NM = avr-nm
-AVRDUDE = avrdude
-RM = rm -f
-COPY = cp
+###############################################################################
+# Executables
+CC = avr-gcc
+LD = avr-gcc
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE = avr-size
+NM = avr-nm
+AVRDUDE = avrdude
+RM = rm -f
+COPY = cp
+
+OPT := -Os
+CSTD ?= -std=gnu11
+
+###############################################################################
# Define all object files.
+
OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
+###############################################################################
+# C flags
+
+TGT_CFLAGS += -mmcu=$(MCU) $(OPT) $(CSTD) -g
+TGT_CFLAGS += $(ARCH_FLAGS)
+TGT_CFLAGS += -Wextra -Wshadow -Wimplicit-function-declaration
+TGT_CFLAGS += -Wredundant-decls -Wstrict-prototypes
+TGT_CFLAGS += -fshort-enums -funsigned-bitfields
+TGT_CFLAGS += -fno-common -ffunction-sections -fdata-sections
+TGT_CFLAGS += -mrelax
-# Compiler flags to generate dependency files.
-GENDEPFLAGS = -MMD -MP -MF .dep/$(@F:%.o=%.d)
+###############################################################################
+# C & C++ preprocessor common flags
+TGT_CPPFLAGS += -MMD -MP -MF .dep/$(@F:%.o=%.d)
+TGT_CPPFLAGS += -Wall -Wundef
+TGT_CPPFLAGS += -DF_CPU=$(F_CPU)UL $(CDEFS) $(CINCS)
-# Combine all necessary flags and optional flags.
-# Add target processor to flags.
-ALL_CFLAGS = -mmcu=$(MCU) $(CFLAGS) $(GENDEPFLAGS)
+###############################################################################
+# Linker flags
+TGT_LDFLAGS += $(ARCH_FLAGS)
+TGT_LDFLAGS += -Wl,-Map=$(TARGET).map,--cref
+TGT_LDFLAGS += -Wl,--gc-sections
+
+###############################################################################
+# Avrdude
+
+AVRDUDE_PORT ?= usb
AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE)
-# Be silent per default, but 'make V=1' will show all compiler calls.
-ifneq ($(V),1)
-Q := @
-NULL := 2>/dev/null
-else
-QP := \#
-endif
+###############################################################################
+
+.SUFFIXES: .elf .hex .lss .map .sym
+.SECONDARY:
.PHONY: elf hex lss sym size
elf: $(TARGET).elf
@@ -40,7 +73,7 @@ lss: $(TARGET).lss
sym: $(TARGET).sym
size: $(TARGET).elf
- @$(QP)printf " SIZE $(TARGET).elf\n"
+ @#$(QP)printf " SIZE $(TARGET).elf\n"
$(Q)$(SIZE) $(TARGET).elf
# Program the device.
@@ -51,14 +84,10 @@ flash: $(TARGET).hex
fuses:
$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U hfuse:w:$(HFUSE):m -U lfuse:w:$(LFUSE):m
-
-.SUFFIXES: .elf .hex .eep .lss .sym
-
%.hex: %.elf
@$(QP)printf " OBJCOPY $(*).hex\n"
$(Q)$(OBJCOPY) -Oihex -R .eeprom $< $@
-
# Create extended listing file from ELF output file.
%.lss: %.elf
@$(QP)printf " OBJDUMP $@\n"
@@ -69,34 +98,28 @@ fuses:
@$(QP)printf " NM $@\n"
$(Q)$(NM) -n $< > $@
-
-
# Link: create ELF output file from object files.
-.SECONDARY : $(TARGET).elf
-.PRECIOUS : $(OBJ)
%.elf %.map: $(OBJ)
@$(QP)printf " LD $@\n"
- $(Q)$(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
+ $(Q)$(LD) $(TGT_CFLAGS) $(CFLAGS) $(TGT_LDFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
# Compile: create object files from C source files.
%.o: %.c
@$(QP)printf " CC $<\n"
- $(Q)$(CC) -c $(ALL_CFLAGS) $< -o $@
-
+ $(Q)$(CC) $(TGT_CFLAGS) $(CFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $@ -c $<
# Target: clean project.
-.PHONY: clean distclean
+.PHONY: clean distclean dist
clean:
@$(QP)printf " CLEAN\n"
- $(Q)$(RM) $(TARGET).elf $(TARGET).lss $(TARGET).map $(TARGET).sym \
- $(OBJ) $(SRC:.c=.s) .dep/*
+ $(Q)$(RM) $(OBJ) $(SRC:.c=.s) .dep/* $(TARGET).elf \
+ $(TARGET).hex $(TARGET).lss $(TARGET).map $(TARGET).sym
distclean: clean
@$(QP)printf " DISTCLEAN\n"
- $(Q)$(RM) $(TARGET).hex $(TARGET).tar.gz
+ $(Q)$(RM) $(TARGET).tar.gz
-.PHONY: dist
dist: build
tar cvfz $(TARGET).tar.gz \
$(SRC) \