petalinux 添加开机自启动程序

Posted 2021-12-09 为了维护世界和平_

使用petalinux 建立开机自启动程序

1、使用 PetaLinux tools

$ petalinux-create -t apps --template install -n myapp-init --enable

2、编辑文件 /project-spec/meta-user/recipes-apps/myapp-init/myapp-init.bb

#this file is the myapp-init recipe.
#
SUMMARY = "Simple myapp-init application"
SECTION = "PETALINUX/apps"
LICENSE = "MIT"
 
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
 
SRC_URI = "file://myapp-init \\
"
 
S = "${WORKDIR}"
FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
 
inherit update-rc.d
INITSCRIPT_NAME = "myapp-init"
INITSCRIPT_PARAMS = "start 99 S ."
 
do_install() {
    install -d ${D}${sysconfdir}/init.d
    install -m 0755 ${S}/myapp-init ${D}${sysconfdir}/init.d/myapp-init
}
FILES_${PN} += "${sysconfdir}/*"

这个文件的意思就是把myapp-init 放在/etc/init.d文件下，在linux系统中，放在init.d目录文件下可执行文件都会执行。

3、在文件 /project-spec/meta-user/recipes-apps/myapp-init/files/myapp-init.中添加用户的可执行文件，即可实现开机自启动。

#!/bin/sh

echo " Starting myapp-init"
#可执行文件
modprobe zynqmp_r5_remoteproc
echo amp_wy1.elf > /sys/class/remoteproc/remoteproc0/firmware
echo start > /sys/class/remoteproc/remoteproc0/state

 rpmsg_process &