reboot to bootloader

Symptom: The PCB board will restart directly from firmware soft reset to bootloader update Problem Reason: IWDG (independent watchdog) is turned on in the firmware, no dog is fed during firmware update, causing The count is counted to 0 and the watchdog resets reset. Problem solving: 1. Since the independent watchdog cannot be turned off once it is turned on, either feed the dog in the bootloader or do

Profile: This section is mainly recorded in the tiny 6410 Development Board written in the bare Metal program key interrupt control LED light. 8 user-defined keys are configured in the Tiny6410, and KEY1 is used to control the LED1~LED4. The key and led circuits are as follows: K1 corresponds to the external interrupt Eint0,led1~led4 configuration method as described in the article Embedded bootloader Development Six (Tiny 6410), no longer making sta

1, the role of bootloader Simply put,BootLoader is a small program that runs before the operating system runs. With this applet, you can initialize the hardware device to bring the system's hardware and software environment to a suitable state to prepare for the final call to the operating system. The starting process for bootloader is divided into two stages st

Bootloader and kernel with the start-up process--------------------------------------------The ARM9 board has a Norflash chip that stores the basic Bootlader code, which is the 0 address where the CPU executes the code. The 4kRam space inside the CPU acts as the stack and data segment storage at this time. Because it is Samsung's own chip, so the hardware above can be implemented to Nandflash before the 4K code automatically copied to the Iram (the im

Openmoko gta03 smartq5 initi6410 bootloader Qi reading and analysis of enterprise-level bootloader (I)(For more information, see the source. It cannot be used for commercial purposes) (Welcome:Www.embed-training.com/) As openmoko 0 xdroid's open-source man jserv said: the use of Qi is not limited to the openmoko freerunner hardware platform. The smart device changes the original openmoko gta03

follows:sudo mount/dev/sda1/mnt/boot/efiThen use modprobe efivars to load the Efivars module before chroot to the installed release. Fedora Users can reinstall bootloader using the following commandGrub2-mkconfig-o/boot/grub2/grub.cfgyum Reinstall Grub2-efi ShimThe grub2-mkconfig-o/boot/grub2/grub.cfg command is to generate a new configuration file. Ubuntu users use the following command insteadApt-get Install--reinstall GRUB-EFI-AMD64Once the

General method of writing Uboot/bootloader/kernel in embedded system This article describes the general method of burning uboot/bootloader/kernel in embedded systems, and if uboot or kernel errors occur, www.2cto.com boot failure and so on how to re-burn write uboot/kernel. burning write Uboot/kernel generally there are two ways, one is in the Linux itself (shell), directly uboot/ Kernel image files (bin

write kernel, mtd1 is kernel specific partition mtd write vmlinux. elf/dev/mtd1 // restart reboot // 2. run uboot/kernel on the uboot interface, take kernel as an example. // In The bootloader interface, // setenv ipaddr 10.10.167.10 // server IP address setenv serverip 10.10.167.249 // download the Linux kernel vmlinux52tftpboot 0 vmlinux52 // burn it to flash. // 0x20000000 is the storage location of vml

Burn write Uboot/kernel This paper introduces the general method of burning write Uboot/bootloader/kernel in embedded system, and how to re-burn uboot/kernel if uboot or kernel error, boot failure, and so on. Burn Write uboot/ Kernel generally have two ways, one is in the Linux itself (shell), directly uboot/kernel image files (binary files) using the command to burn Flash write to the flash specific partition, and the other is on the Uboot interface,

General methods for writing uboot/bootloader/kernel in an embedded system this article introduces the general methods for writing uboot/bootloader/kernel in an embedded system, and if uboot or kernel errors occur, how to re-run uboot/kernel when the boot fails at www.2cto.com. there are generally two methods for writing uboot/kernel. One is to directly convert the uboot/kernel image files (binary files) in

Support Linux bootloader More, developed into the 2010, there have been some inevitable results, some bootloader has disappeared, some bootloader have been replaced, some bootloader were merged, some although in development, But has retreated to a remote corner. Now let's introduce a

ipaddr 10.10.167.10Server IP AddressSetenv ServerIP 10.10.167.249Download Linux kernel vmlinux52Tftpboot 0 vmlinux52Burn to Flash.The 0x20000000 is the storage location of the vmlinux52.0x1dd00000 is the starting position of the system kernel (each device location is different),+0x600000 is the file lengthUpgrade 0x20000000 0x1dd00000 +0x600000Restart LinuxBootoctliux*************************************** **If the boot fails due to uboot or kernel errors, and the card is dead, you need to dete

Last night, I heard from my roommates about how to compile the Linux kernel. As a computer graduate, I don't know much about it. It's so depressing. After much understanding, we finally have a vague concept. In Linux, the kernel image is usually stored in Boot/grub or boot/Lilo. After a roommate's explanation, I have a rough idea about this image. But who will read this grub. conf? You do not know. Come and think about it in bed, bootloader! This must

s5pv210 Development Series three the realization of simple bootloader Chess Boy 1048272975 Bootloader is the code that executes the first segment of the embedded system after power-on. For a simple processor, there may not be a concept of bootloader, but for the application processor, there are different boot methods, different storage devices (Nand Flash, SD/M

BIOS The BIOS is the English "basic Input Output system" abbreviation, after literal translation after the Chinese name is "the basic input to export systems". In fact, it is a group of curing to the computer motherboard on the previous ROM chip program, it holds the computer's most important basic input and output of the program, system settings information, post-boot self-test program and system from the start program. Its main function is to provide the lowest, most direct hardware setup and

Tags: erase img Fast BSP Use nbsp Wait zip bootReboot to Recovery interfaceADB reboot RecoveryReboot to Bootloader interfaceADB reboot bootloaderADB wait-for-device #等待设备ADB reboot-bootloader #这个是重启到bootloader界面 default is FastBoo

From http://blog.ednchina.com/hhuwxf/1915416/message.aspx, thanks to the author First, the introduction of bootloader From the previous hardware experiment you can know that after the system is powered up, a program is required to initialize: offWATCHDOG, changing the system clock, initializing the storage controller, copying more code into memory, and so on. If it can put the operating system kernel (whether from the local, such as Flash, or from the

We are happy to be able to prevent HTC from locking the bootloader of its Android device in a timely manner, and to allow the manufacturer to listen to the voice of a few users, I am very happy to realize that unlocking bootloader can increase the product value. We will continue to track the progress and effect of this incident. At the same time, we also received a lot of questions about why

CodeFor example: FastBoot OEM Unlock Pvsnia4k66qwfwzkbchm Copy Code Enter, and the top left corner of your phone will prompt unlocking. after the reboot, the interface instructions will be unlocked! China line is a Chinese hint! ——————————————————————————————————————————————————————Fifth Step: Remove the boot alert page —————————————————————————————————————————————————————— is it uncomfortable to see such a warning screen every t

Http://www.mcuol.com/tech/107/26052.htm Introduction Location-Based independenceCodePIC (positionindependent code)ProgramThe design plays an important role in the development of embedded application systems. Development of bootloader programs and kernel initialization design, especially in bare metal environments. Location-independent programming methods can also be used in specific applications to build highly efficient dynamic link libraries,