xmega128a1的freertos移植
写了一个简单的两个闪灯灯接在PORTE的4个端口上
点击此处下载 ourdev_491185.rar(文件大小:86K) (原文件名:demo.rar)
电路图见我以前发的帖子
采用的是外部16M晶振 Size after:
AVR Memory Usage
----------------
Device: atxmega128a1
Program: 7000 bytes (5.0% Full)
(.text + .data + .bootloader)
Data: 2219 bytes (27.1% Full)
(.data + .bss + .noinit)
编译结果
winavr20090313 LZ 在XMEGA方面是先行者啊,佩服! 最近测试了ADC ，DAC，串口，定时器,PWM，扩展PWM,eeprom，扩展SRAM
ADC很操蛋，内部的1V参考源，0.55v的输入电压，纹波为10mv，转换结果为0x96a，换算出来0.58v，差了30mv，没有更好的评判方法，只有采用外部高精度的参考源再试。
DAC还可以，pwm和扩展PWM简单好用
定时器功能很强大。
串口操作一如既往的简单
全部代码都是GCC的
官方代码下加一个makefile即可全部编译
SRAM操作GCC下注意RAMPX,RAMPY,RAMPZ，具体原因是因为GCC不支持24位地址
需要查看编译后的汇编代码，看使用哪个寄存器寻址，然后手动指定RAMPX,RAMPY,RAMPZ中的一个
最后，需要提出表扬的是atmel 的application确实很好，
就是datasheet太操蛋了，不够详细，
Electrical Characteristics参数太不详细了，不知什么原因，可否有人提供官方解释 #MAKEFILE
#注意修改SRC，加入相应的SRC就可以编译，代码请从官方网站下载
#用winavr自动生成的MAKEFILE即可使用，指定芯片为atxmega128a1即可
#________________________________________________________________________________________________
#
# WinAVR Sample makefile written by Eric B. Weddington, J鰎g Wunsch, et al.
# Released to the Public Domain
# Please read the make user manual!
#
# Additional material for this makefile was submitted by:
#Tim Henigan
#Peter Fleury
#Reiner Patommel
#Sander Pool
#Frederik Rouleau
#Markus Pfaff
#
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make coff = Convert ELF to AVR COFF (for use with AVR Studio 3.x or VMLAB).
#
# make extcoff = Convert ELF to AVR Extended COFF (for use with AVR Studio
# 4.07 or greater).
#
# make program = Download the hex file to the device, using avrdude.Please
# customize the avrdude settings below first!
#
# make filename.s = Just compile filename.c into the assembler code only
#
# To rebuild project do "make clean" then "make all".
#
# MCU name
MCU = atxmega128a1
#F_CPU = 32000000
# Output format. (can be srec, ihex, binary)
FORMAT = ihex
# Target file name (without extension).
TARGET = ADCdemo
# Optimization level, can be . 0 turns off optimization.
# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
OPT = s
# List C source files here. (C dependencies are automatically generated.)
SRC = \
adc_driver.c \
adc_example_interrupt.c
# If there is more than one source file, append them above, or modify and
# uncomment the following:
#SRC += foo.c bar.c
# You can also wrap lines by appending a backslash to the end of the line:
#SRC += baz.c \
#xyzzy.c
# List Assembler source files here.
# Make them always end in a capital .S.Files ending in a lowercase .s
# will not be considered source files but generated files (assembler
# output from the compiler), and will be deleted upon "make clean"!
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =
# List any extra directories to look for include files here.
# Each directory must be seperated by a space.
#头文件地址全部写到这儿即可
EXTRAINCDIRS =include xmega bsp
# Optional compiler flags.
#-g: generate debugging information (for GDB, or for COFF conversion)
#-O*: optimization level
#-f...: tuning, see gcc manual and avr-libc documentation
#-Wall...:warning level
#-Wa,...: tell GCC to pass this to the assembler.
# -ahlms:create assembler listing
DEBUG = -gdwarf-2
WARNINGS=-Wall -Wextra -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-align -Wsign-compare \
-Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wunused
CFLAGS = -D GCC_MEGA_AVR \
$(DEBUG) -O$(OPT) \
-fsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \
$(WARNINGS) \
-Wa,-adhlns=$(<:.c=.lst) \
$(patsubst %,-I%,$(EXTRAINCDIRS))
#patsubst 将$(EXTRAINCDIRS) 替换为 -I$(EXTRAINCDIRS)
# Set a "language standard" compiler flag.
# Unremark just one line below to set the language standard to use.
# gnu99 = C99 + GNU extensions. See GCC manual for more information.
#CFLAGS += -std=c89
#CFLAGS += -std=gnu89
#CFLAGS += -std=c99
CFLAGS += -std=gnu99
# Optional assembler flags.
#-Wa,...: tell GCC to pass this to the assembler.
#-ahlms: create listing
#-gstabs: have the assembler create line number information; note that
# for use in COFF files, additional information about filenames
# and function names needs to be present in the assembler source
# files -- see avr-libc docs
ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
#---------------- External Memory Options ----------------
# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# used for variables (.data/.bss) and heap (malloc()).
#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# only used for heap (malloc()).
#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x807fff
#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x807fff
EXTMEMOPTS =
# Optional linker flags.
#-Wl,...: tell GCC to pass this to linker.
#-Map: create map file
#--cref: add cross reference tomap file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
# Additional libraries
# Minimalistic printf version
#LDFLAGS += -Wl,-u,vfprintf -lprintf_min
# Floating point printf version (requires -lm below)
#LDFLAGS += -Wl,-u,vfprintf -lprintf_flt
# -lm = math library
LDFLAGS += -lm
# ---------------------------------------------------------------------------
# Define directories, if needed.
DIRAVR = c:/WinAVR-20090313
DIRAVRBIN = $(DIRAVR)/bin
DIRAVRUTILS = $(DIRAVR)/utils/bin
DIRINC = .
DIRLIB = $(DIRAVR)/avr/lib
# Define programs and commands.
SHELL = sh
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
REMOVE = rm -f
COPY = cp
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
ELFSIZE = $(SIZE) -A $(TARGET).elf
# Define Messages
# English
MSG_ERRORS_NONE = Errors: none
MSG_BEGIN = -------- begin --------
MSG_END = --------end--------
MSG_SIZE_BEFORE = Size before:
MSG_SIZE_AFTER = Size after:
MSG_COFF = Converting to AVR COFF:
MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
MSG_FLASH = Creating load file for Flash:
MSG_EEPROM = Creating load file for EEPROM:
MSG_EXTENDED_LISTING = Creating Extended Listing:
MSG_SYMBOL_TABLE = Creating Symbol Table:
MSG_LINKING = Linking:
MSG_COMPILING = Compiling:
MSG_ASSEMBLING = Assembling:
MSG_CLEANING = Cleaning project:
# Define all object files.
OBJ = $(SRC:.c=.o) $(ASRC:.S=.o)
# Define all listing files.
LST = $(ASRC:.S=.lst) $(SRC:.c=.lst)
# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
# Default target.
all: begin gccversion sizebefore $(TARGET).elf $(TARGET).hex $(TARGET).eep \
$(TARGET).lss $(TARGET).sym sizeafter finished end
# Eye candy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
begin:
@echo
@echo $(MSG_BEGIN)
finished:
@echo $(MSG_ERRORS_NONE)
end:
@echo $(MSG_END)
@echo
# Display size of file.
#sizebefore:
# @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); echo; fi
#sizeafter:
# @if [ -f $(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
# Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
sizebefore:
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
2>/dev/null; echo; fi
sizeafter:
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
2>/dev/null; echo; fi
# Display compiler version information.
gccversion :
@$(CC) --version
# Convert ELF to COFF for use in debugging / simulating in
# AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000
coff: $(TARGET).elf
@echo
@echo $(MSG_COFF) $(TARGET).cof
$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
extcoff: $(TARGET).elf
@echo
@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
# Create final output files (.hex, .eep) from ELF output file.
%.hex: %.elf
@echo
@echo $(MSG_FLASH) $@
$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
%.eep: %.elf
@echo
@echo $(MSG_EEPROM) $@
-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
# Create extended listing file from ELF output file.
%.lss: %.elf
@echo
@echo $(MSG_EXTENDED_LISTING) $@
$(OBJDUMP) -h -S $< > $@
# Create a symbol table from ELF output file.
%.sym: %.elf
@echo
@echo $(MSG_SYMBOL_TABLE) $@
avr-nm -n $< > $@
# Link: create ELF output file from object files.
.SECONDARY : $(TARGET).elf
.PRECIOUS : $(OBJ)
%.elf: $(OBJ)
@echo
@echo $(MSG_LINKING) $@
$(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS)
# Compile: create object files from C source files.
%.o : %.c
@echo
@echo $(MSG_COMPILING) $<
$(CC) -c $(ALL_CFLAGS) $< -o $@
# Compile: create assembler files from C source files.
%.s : %.c
$(CC) -S $(ALL_CFLAGS) $< -o $@
# Assemble: create object files from assembler source files.
%.o : %.S
@echo
@echo $(MSG_ASSEMBLING) $<
$(CC) -c $(ALL_ASFLAGS) $< -o $@
# Target: clean project.
clean: begin clean_list finished end
clean_list :
@echo
@echo $(MSG_CLEANING)
$(REMOVE) $(TARGET).hex
$(REMOVE) $(TARGET).eep
$(REMOVE) $(TARGET).obj
$(REMOVE) $(TARGET).cof
$(REMOVE) $(TARGET).elf
$(REMOVE) $(TARGET).map
$(REMOVE) $(TARGET).obj
$(REMOVE) $(TARGET).a90
$(REMOVE) $(TARGET).sym
$(REMOVE) $(TARGET).lnk
$(REMOVE) $(TARGET).lss
$(REMOVE) $(OBJ)
$(REMOVE) $(LST)
$(REMOVE) $(SRC:.c=.s)
$(REMOVE) $(SRC:.c=.d)
# Automatically generate C source code dependencies.
# (Code originally taken from the GNU make user manual and modified
# (See README.txt Credits).)
#
# Note that this will work with sh (bash) and sed that is shipped with WinAVR
# (see the SHELL variable defined above).
# This may not work with other shells or other seds.
#
%.d: %.c
set -e; $(CC) -MM $(ALL_CFLAGS) $< \
| sed 's,\(.*\)\.o[ :]*,\1.o \1.d : ,g' > $@; \
[ -s $@ ] || rm -f $@
# Remove the '-' if you want to see the dependency files generated.
-include $(SRC:.c=.d)
# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion coff extcoff \
clean clean_list program ADC的原因找到了，是采用了无符号模式，无符号模式时的负端接在VREF/2-OFFSETE上，所以不正确，改成signed 模式后非常准确，静态直流下+/-2个LSB，误差在2/2048*2V=1.9mv左右. 请各位大虾，传个atxmega128a1 库函数,头文件问题。最好包括IO口，中断向量，寄存器地址。
万分感谢 学习了你的port.c移植文件， 感觉gcc编译器跟我用的IAR在堆栈管理上似乎很大的不同啊，上下文环境保存里面似乎没有r28,r29构成的软堆栈指针了，请教楼主gcc为啥这样做的呢？ 6楼，编译器自带
7楼，请参考GCC编译器关于寄存器使用的那一个FAQ，GCC应该是使用到的都保存 ralfak 发表于 2009-10-22 23:09 static/image/common/back.gif
最近测试了ADC ，DAC，串口，定时器,PWM，扩展PWM,eeprom，扩展SRAM
ADC很操蛋，内部的1V参考源，0.55v的输 ...
您好 楼主 最近我在用ATXmega128a1的板子 但是在定时器产生PWM上产生了问题 希望得到您的帮助 能联系一下吗 mark一下。。。。
页:
[1]