linux bare metal backup

Recently, I want to learn about the arm Development Board and develop bare metal programs as per the single-chip microcomputer routine. Baidu, most bare-metal programs are developed using rvds or ads, and written to SDRAM using jlink or JTAG for execution. Because I am used to it in Ubuntu and want to break away from t

With only a single OK6410 board, a 8G SD card, no associated JTAG debugger, and no integrated development environment available, how do bare metal development work? The Manual for query development shows that the 6410 chip supports booting from the SD card, so bare metal development starts with the SD card.1. Construct

In the front we used the assembly to complete a running light experiment: TINY4412 assembly running light Code, Tiny4412 bare-metal LED operationHowever, the assembly language readability is too poor, in this section we use C language to achieve the same function, and later test also try to use C language to achieve.When we write the host computer program, the C language program executes the first instructi

The paper is recorded in the Linux environment with the cross-tool chain to develop arm bare metal programs encountered some problems and solutions, mainly to solve the problem of the process and a number of small experience, small skills recorded. Now, some of the things that feel a bit of value are moved to the blog for readers ' reference. -----------------1

One, cross-compilation tool chain installation and testingInstallation method1. GCC uses arm-linux-gcc-4.3.2, unzip the package, the path is set to the root directory (Ubuntu requires sudo)Tar xzvf arm-linux-gcc-4.3.2.tar.gz-c/modifying environment variables(For RHEL6)Vim/root/.bashrcAdd toExpert path= $PATH:/usr/local/arm/4.3.2/binAfter saving and exiting, execute the surce command to reloadSource/root/.ba

In the previous article, the installation of the SD card's bare-metal development environment and the OK6410 start-up settings were mentioned, and this chapter began to enter the blinking control of the LED lights.1, first open the OK6410 Development Board schematic diagram, find led and other control schematic parts, such as 1 shown.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/7F/9D/wKiom1ck2

no extension) is also copied to the SD card root directoryInsert SD to BBB, press and hold the boot button, give the BBB a spot, the LED flashes, and the bare metal environment builds OK.Of course you can also use TI's CCS IDE.If you are using CCS for starterware development, choose TI's arm compiler when you install CCS.We can pass the File->import. Import eisting CCS ProjectProject path in the ~/am335x_s

Many others in this article teach you how to learn. 4.1 Assembly Learning4.1.1 basic knowledge 4.1.2 ARM Simulator 4.2 s5pv210 Startup Process 4.3 light an LED 4.4 serial port 4.5 implement the printf function 4.6 clock Configuration 4.7 relocation (BL1 loading bl2 to SRAM) 4.8 DDR 4.9 NAND Flash read/write 4.10 NAND read/write 8-bit hardware ECC 4.11 NAND read/write 8-bit hardware ECC (continued) 4.12 LCD operation Bare

' Rule: describes how to generate the target file. Targets: prerequisites Command (use the tab Space key) Make up a rule Keyword used for pseudo-targets: . Phony: Clean ---- indicates that clean is a pseudo target. Final Goal: if the user does not specify to execute a rule, make will execute the first rule in makefile by default, and the goal in this rule is called the final goal. Make + target name: The generated target is generated. Execute the separate rule. --- Variable Before using variable

The following bare metal program is based on gt2440 and the compiler is a arm-linux-gcc-4.4.3. Program layout: the source code is composed of two files: interrupt. s and led. C. The interrupt is responsible for initialization, And the interrupt processing program is defined in led. C. Program process: first install the abnormal vector table, disable the Watchdog

The following bare metal program is based on gt2440 and the compiler is a arm-linux-gcc-4.4.3. Program Structure: The program consists of SDRAM. S and Main. C consists of two files, SDRAM. s file to complete some initialization work, such as clock initialization, memory controller initialization, copy the second-stage code to SDRAM, and so on; Main. C is responsi

make command and make it automatically. The BIND file generated will be placed in ~ /AM335X_StarterWare_02_00_01_01/binary/armv7a/gcc/am335x/beaglebone/gpio/directory The default version is Debug and Realse. Download Test Procedure Find a microSD card, the capacity should not be too small, I use 2 GB, the official HPUSBFW. EXE format SD card Then ~ /AM335X_StarterWare_02_00_01_01/binary/armv7a/gcc/am335x/beaglebone/bootloader/Release_MMCSD/MLO copy to the root directory of the SD card Rename t

Nimi2440 bare metal LED program problems-general Linux technology-Linux technology and application information, the following is a detailed description. I am a beginner. This is the code I wrote. There is no syntax error, but it is a logic error and cannot implement the desired result. Please advise !! # Define GPBCON

software not supported by the underlying software.) When linking applications running on the operating system, the default link is generally used.1, directly specify the code snippet, data segment, BSS segment start addressAs follows:-ttext startaddr-tdata startaddr-TBSS startaddrFor example:Ld–ttext 0x00000000–g Led_on.o–o led_on_elf2. Set the start address directly using the link scriptLd–ttimer.lds–o timer_elf A.O B.OThe link script timer.lds content is as follows:sections{. =0x30000000;. Te