Zephyr应用笔记：Python实现JLink下载程序脚本
python脚本内容：
#!/usr/bin/env python3
#
# Copyright (c) 2018 Noitom
#
# SPDX-License-Identifier: Apache-2.0
import argparse
import os
import tempfile
import subprocess
def
do_jlink(
args):
lines = [
'r']
# Reset and halt the target
lines.append(
'loadfile
{}
{}
'.format(args.load_path, args.load_offset))
lines.append(
'g')
# Start the CPU
lines.append(
'q')
# Close the connection and quit
with tempfile.NamedTemporaryFile(
suffix=
'.jlink')
as f:
f.writelines(
bytes(line +
'
\n
',
'utf-8')
for line
in lines)
f.flush()
cmd = ([
'JLinkExe'] + [
'-if',
'swd',
'-speed',
'4000',
'-device', args.device,
'-CommanderScript', f.name])
subprocess.check_call(cmd)
def
args():
parser = argparse.ArgumentParser()
parser.add_argument(
"-d",
"--device",
metavar=
'filename',
required=
True)
parser.add_argument(
"-load",
"--load_path",
metavar=
'filename',
required=
True)
parser.add_argument(
"-offset",
"--load_offset",
metavar=
'filename',
required=
True)
args = parser.parse_args()
do_jlink(args)
if
__name__ ==
'__main__':
args()
Makefile内容如下：
BOARD = mimxrt1050_evk
KERNEL_BIN_NAME = image.bin
JLINK_FLASH_LOAD_ADDRESS = 0x60000000
SOURCE_DIRECTORY :=
$(
CURDIR
)
BUILD_DIRECTORY :=
$(
CURDIR
)/
$(
BOARD
)
IMGTOOL =
$(
CURDIR
)/merge.py
IMGJLINK =
$(
CURDIR
)/jlink.py
IMG_HEADER_LEN = 8192
image: check
(mkdir -p
$(
BOARD
) && \
cd
$(
BOARD
) && \
cmake -DBOARD=
$(
BOARD
)
$(
SOURCE_DIRECTORY
) && \
make -j
$(
nproc
))
$(
IMGTOOL
) -k
$(
BUILD_DIRECTORY
)/zephyr/zephyr.bin \
-i
$(
KERNEL_BIN_NAME
) \
-head head.bin \
-H
$(
IMG_HEADER_LEN
)
flash: check
$(
IMGJLINK
) -d MIMXRT1052xxxxA \
-load
$(
KERNEL_BIN_NAME
) \
-offset
$(
JLINK_FLASH_LOAD_ADDRESS
)
menuconfig: check
cd
$(
BOARD
) && make menuconfig
clean: check
@rm -f
${MCUBOOT_KERNEL_BIN_NAME}
cd
$(
BOARD
) && make clean
check:
@if [ -z "
$$ZEPHYR_BASE" ]; then echo "Zephyr environment not set up"; false; fi
@if [ -z "
$(
BOARD
)" ]; then echo "You must specify BOARD="; false; fi