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# Copyright 2014 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# nuvoton-m4 devices support both JTAG and SWD transports.
#
source [find target/swj-dp.tcl]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME npcx_ec
}
if { [info exists ENDIAN] } {
set _ENDIAN $ENDIAN
} else {
set _ENDIAN little
}
# Work-area is a space in RAM used for flash programming
# By default use 16kB
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
set _WORKAREASIZE 0x8000
}
#jtag scan chain
if { [info exists CPUTAPID ] } {
set _CPUTAPID $CPUTAPID
} else {
set _CPUTAPID 0x4BA00477
}
#jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position \
$_CHIPNAME.cpu -work-area-phys 0x200C0000 \
-work-area-size $_WORKAREASIZE
# JTAG speed
adapter_khz 100
adapter_nsrst_delay 100
jtag_ntrst_delay 100
# use sysresetreq to perform a system reset
cortex_m reset_config sysresetreq
#reset configuration
reset_config trst_and_srst
$_TARGETNAME configure -event reset-start {
echo "NPCX Reset..."
halt
adapter_khz 1000
}
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