bare metal vs virtualization

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 in the reset exception, then enter the normal

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 responsible for four LEDs which are cyclically lit an

Linux bare metal led Driver Based on arma8 # include "s5pc100. h" www.2cto.com int main () {int I; // GPG3.GPG3CON = (GPG3.GPG3CON ~ 0xF) | 1

The Ethernet Control Chip dm9000 is able to receive data correctly on 2440 bare metal (the source code project has been uploaded) (411.47 K) the attachment was downloaded 168 times After a few days of dm9000, I have never been able to correctly receive data. I am so depressed for a few days. Now I am happy. I have referred to this Article "single-chip microcomputer-driven dm9000 Nic chip (detailed debu

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 (* (volatile unsigned long *) 0x56000010) # Define GPBDAT (* (volatile unsigned long *) 0

1. Tools:Download the generic PE toolbox, the. exe file is installed on the U disk, making the USB flash drive a bootable disk2. Shutdown restart,--Desktop, enter the BIOS system by tapping the "delete" button--notebook, usually through "F2" or "ESC", enter the BIOS system3. Set the BIOS boot mode to USB drive--esc, return to the previous level of functionality--f10, save function--After determining, save. 4. Come to the selection screen and go to Win8 Lite5. Select the drive letter you want to

Today wrote a simple key key to drive the LED and Beep buzzer program, the source code is as follows:/* Copyright (C) fulinux Other files are similar to those in the previous days.u-boot-2014.10 5th day----LED, button, and beep bare metal programs

PIN will respond accordingly. Q 1: Q 2: Does the chip selection pin need to be set manually? Answer 2: no need. When the CPU accesses an address, the CPU sends an address signal to the memory controller, and the memory controller makes the corresponding So let's say why our memory address is 30000000, because we have this time the memory controller to select the address, corresponding to the corresponding chip selection signal, select the memory chip. The address range of a single chip pin corr

Some time ago, bare metal was used on the Keil platform. Keil was not born to support both arm11 and arm11 products. It was not very easy to use, but it was still switched back to ads. The Platform should not be an obstacle that binds us. It should be our tool. It should be used when we pick it up! This blog does not teach you to start learning ads from scratch, but is just a record of my experiment, whic

Mini2440 bare metal trial-IIC controls EEPROM data transmission, mini2440iicContent: Write 0x00-0xff to the internal address of EEPROM (AT24C02), and then read the data.Iic bus introduction: The IIC (Inter-IntegratedCircuit, I2C) bus is a two-line serial bus developed by PHILIPS to connect the microprocessor and its peripheral devices. On the iic BUS, only two lines are required: the serial data line SDA an

1: Install TFTP:#apt-get Update#apt-get Install TFTP-HPA tftpd-hpa xinetd2:#cd/srv#mkdir TFTP#chmod 777 TFTP3: Copy a led.bin file into TFTPHttp://pan.baidu.com/s/1kTS7MGv4: Restart the service#/etc/init.d/xinetd Restart#/ETC/INIT.D/TFTPD-HPA Restart5: After starting the GEC210 Development Board, enter the Uboot command to execute:Ubuntu ip:192.168.205.250Development Board ip:192.168.205.233#pri............................#setenv ServerIP 192.168.205.250#setenv ipaddr 192.168.205.233#setenv Gate

};//version is double-byte, here is the high-byte, low -byteRET = gtp_i2c_read (client, buf,sizeof(BUF)); = U8 buf[8] = {Gtp_reg_version >>8, Gtp_reg_version 0xFF}; //The first 2 bytes have been stored in gtp_reg_version, starting from buf[2], where the data structure remains consistent for subsequent code BUF[8]RET =i2c_read0 (0x5c, Gtp_reg_version, buf[2],6) i2c_read0 (0x5c, gtp_reg_version)//U16 with Double byte.3, overwrite interrupt function processing,look at the driver code, delete all th

myvsprintf (STRING,FMT,AP) Transforms the FMT string into variable parameters, assigns the transformation result to string, and sends the string to the serial port through the uart_sendstring () function. The concrete implementation can look at my source code. In my resources, http://download.csdn.net/detail/yaozhenguo2006/3774535. Standard C library problem even if temporarily solved, but still give me a wake up, ARM-LINUX-GCC on the development of bare