if { [info exists CHIPNAME] } {
   set  _CHIPNAME $CHIPNAME
} else {
   set  _CHIPNAME at9r40008
}

if { [info exists ENDIAN] } {
   set  _ENDIAN $ENDIAN
} else {
   set  _ENDIAN little
}

if { [info exists CPUTAPID ] } {
   set _CPUTAPID $CPUTAPID
} else {
  # force an error till we get a good number
   set _CPUTAPID 0xffffffff
}

jtag_nsrst_delay 200
jtag_ntrst_delay 200

#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 newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID

set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME arm7tdmi -endian $_ENDIAN -chain-position $_TARGETNAME -variant arm7tdmi


$_TARGETNAME configure -event gdb-flash-erase-start {
	wait_halt
	sleep 10
	poll
	# Ethernut 3 remapping is required to access external flash memory.
	mww 0xffe00000 0x1000213d
	mww 0xffe00004 0x20003e3d
	mww 0xffe00020 0x00000001
}

$_TARGETNAME configure -work-area-phys 0x3C000 -work-area-size 0x4000 -work-area-backup 0

flash bank cfi 0x10000000 0x400000 2 2 $_TARGETNAME

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