openocd + arm-elf-insight

OpenOCD 可以配合 gdb 和圖形介面的 insight 使用。
一樣，由 YAGARTO 下載 arm 的toolchain，安裝。 (eclipse 的安裝也有，但是實際用起來好像沒那麼好用)。

ref HowTo
follow instruction，download一個example 下來當template改比較快。

修改makefile.. 其實只有改 target 和LDSCRIPT

#######################################################################
#
#       !!!! Do NOT edit this makefile with an editor which replace tabs by spaces !!!! 
#
####################################################################
#
# On command line:
#
# make all = Create project
#
# make clean = Clean project files.
#
# To rebuild project do "make clean" and "make all".
#

###############################################################
# Start of default section
#

TRGT = arm-elf-
CC   = $(TRGT)gcc
CP   = $(TRGT)objcopy
AS   = $(TRGT)gcc -x assembler-with-cpp
BIN  = $(CP) -O ihex

MCU  = arm920t

# List all default C defines here, like -D_DEBUG=1
DDEFS =

# List all default ASM defines here, like -D_DEBUG=1
DADEFS =

# List all default directories to look for include files here
DINCDIR =

# List the default directory to look for the libraries here
DLIBDIR =

# List all default libraries here
DLIBS =

#
# End of default section
############################################################################

#############################################################################
# Start of user section
#

# Define project name here
PROJECT = test

# Define linker script file here
LDSCRIPT= ./prj/ANS5000_ram.ld

# List all user C define here, like -D_DEBUG=1
UDEFS =

# Define ASM defines here
UADEFS =

# List C source files here
SRC  = ./src/main.c

# List ASM source files here
ASRC = ./src/crt.s

# List all user directories here
UINCDIR = ./inc

# List the user directory to look for the libraries here
ULIBDIR =

# List all user libraries here
ULIBS =

# Define optimisation level here
OPT = -O0

#
# End of user defines
################################################################################


INCDIR  = $(patsubst %,-I%,$(DINCDIR) $(UINCDIR))
LIBDIR  = $(patsubst %,-L%,$(DLIBDIR) $(ULIBDIR))
DEFS    = $(DDEFS) $(UDEFS)
ADEFS   = $(DADEFS) $(UADEFS)
OBJS    = $(ASRC:.s=.o) $(SRC:.c=.o)
LIBS    = $(DLIBS) $(ULIBS)
MCFLAGS = -mcpu=$(MCU)

ASFLAGS = $(MCFLAGS) -g -gdwarf-2 -Wa,-amhls=$(<:.s=.lst) $(ADEFS) CPFLAGS = $(MCFLAGS) $(OPT) -gdwarf-2 -mthumb-interwork -fomit-frame-pointer -Wall -Wstrict-prototypes -fverbose-asm -Wa,-ahlms=$(<:.c=.lst) $(DEFS) LDFLAGS = $(MCFLAGS) -nostartfiles -T$(LDSCRIPT) -Wl,-Map=$(PROJECT).map,--cref,--no-warn-mismatch $(LIBDIR)  # Generate dependency information CPFLAGS += -MD -MP -MF .dep/$(@F).d  # # makefile rules #  all: $(OBJS) $(PROJECT).elf $(PROJECT).hex  %o : %c     $(CC) -c $(CPFLAGS) -I . $(INCDIR) $< -o $@  %o : %s     $(AS) -c $(ASFLAGS) $< -o $@  %elf: $(OBJS)     $(CC) $(OBJS) $(LDFLAGS) $(LIBS) -o $@  %hex: %elf     $(BIN) $< $@  clean:     -rm -f $(OBJS)     -rm -f $(PROJECT).elf     -rm -f $(PROJECT).map     -rm -f $(PROJECT).hex     -rm -f $(SRC:.c=.c.bak)     -rm -f $(SRC:.c=.lst)     -rm -f $(ASRC:.s=.s.bak)     -rm -f $(ASRC:.s=.lst)     -rm -fR .dep  # # Include the dependency files, should be the last of the makefile
# -include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)

# *** EOF ***

然後就是 loading script : ANS5000_ram.ld

就是改 ram 的start address:因為用stepingstone 用的nternal ram，所以起始是0, size只有4k

MEMORY
{
  ram : org = 0x0000000, len = 4k
}

然後就是給gdb用的command file : ANS5000_ram.gdb，因為我們的jtag board沒有lay nTRST，所以reset command無效。所以是

target remote localhost:3333
monitor sleep 500
monitor poll
monitor soft_reset_halt
monitor arm7_9 sw_bkpts enable
break main
load
continue

這樣作好後，就可以開啟cmd，下make，把program build 好 (build成test.elf)。
然後 將 openocd啟動起來 (ref 上一篇)。

再follow 上面的 Howto，用修改的cmd file 啟動insight (gdb):

C:\UseYagarto>arm-elf-insight -x .\prj\ANS5000_ram.gdb test.elf

然後就看到

---

以上都是在windows下做的，因為上次看code發現我們的jtag board layout 和內建的 chameleon 一樣，所以可以用 YAGARTO 的windows binary，只是將config 改為

#daemon configuration
telnet_port 4444
gdb_port 3333

#interface
interface parport
parport_port 0x378
parport_cable chameleon
jtag_speed 8

#use combined on interfaces or targets that can't set TRST/SRST separately
reset_config trst_and_srst #srst_pulls_trst

#jtag scan chain
#format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, IDCODE)
jtag_device 4 0x1 0xf 0xe

#target configuration
daemon_startup attach
#target  
target arm920t little reset_run 0 arm920t
#working_area 0 0x200000 0x4000 backup
run_and_halt_time 0 5000

就可以