sam7x256.cfg

openocd是比较好的调试工具软件,支持wiggle调试arm,也支持其他调试接口,例如USB口的FT2232.

#use combined on interfaces or targets that can't set TRST/SRST separately
reset_config srst_only 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 create target0 arm7tdmi -endian little -chain-position 0 -variant arm7tdmi
[new_target_name] configure -event reset-init { 
	# disable watchdog
	mww 0xfffffd44 0x00008000	
	# enable user reset
	mww 0xfffffd08 0xa5000001	
	# CKGR_MOR : enable the main oscillator
	mww 0xfffffc20 0x00000601	
	sleep 10
	# CKGR_PLLR: 96.1097 MHz
	mww 0xfffffc2c 0x00481c0e 	
	sleep 10
	# PMC_MCKR : MCK = PLL / 2 ~= 48 MHz
	mww 0xfffffc30 0x00000007	
	sleep 10
	# MC_FMR: flash mode (FWS=1,FMCN=60)
	mww 0xffffff60 0x003c0100	
	sleep 100
}

[new_target_name] configure -work-area-virt 0 -work-area-phys 0x00200000 -work-area-size 0x4000 -work-area-backup 0

#flash bank <driver> <base> <size> <chip_width> <bus_width>
flash bank at91sam7 0 0 0 0 0

# For more information about the configuration files, take a look at:
# openocd.texi