arm processor motherboard

According to the latest news from foreign media, ARM, a British chip design vendor, recently announced details about the 64-bit architecture processor, according to the new strategic plan, ARM will expand its processor business and enter enterprise application fields such as servers. At present, Intel occupies an absol

ARM architecture and example Processor Architecture Description Sample Processor 4 Armv4 without thumb SA-1100 4T Armv4 with thumb ARM7TDMI, arm9tdmi, arm720t, arm740t, ARM920T, arm922t, arm940t, sc100 5T Armv5 with thumb and interactive operations 5TE Armv5 with thumb, inte

ARM processor memory allocation details The Samsung 2440 processor provides 1 GB access to external storage space, divided into 8The size of each bank is 128 MB. The memory access bus width from bank1 to bank7 is programmable, which can be 8bit, 16bit, 32bit, and bank0 can only be 16bit/32bit. Bank0 to bank5 only have Rom and SRAM interfaces, which can be used fo

market can be regarded as one. Of course, Ma Tao explained that am335x is not only for consumer electronics markets, but also for telecommunications, industrial, medical, human-machine peripherals and other markets. Therefore, in addition to the above $89 concise Development Board, Ti also provides a full-featured Development Board for am335x, the price is of course 10 times more than concise board-$995. "A market oriented to the public and taking advantage of traffic; a market oriented to

This article Reprinted from: http://blog.csdn.net/lizhiguo0532/article/details/5922639 Thanks very much to the original author! The ARM processor has a total of 7 running modes:User Mode (usr)-normal Program Execution Mode | -- Fast interrupt mode (FIQ) -- used for high-speed data transmission and Channel Processing Special | exclusive | external interrupt mode (IRQ) -- used for normal Interrupt ProcessingP

[ARM processor operating mode]Processor operating mode1.User (URS): User mode, Linux applications run in user mode2.FIQ (FIQ): Fast interrupt Mode3.IRQ (IRQ): Interrupt mode4.Supervisor (SVC): System protection mode, Linux kernel running in system protected mode5.Abort (ABT): anomaly mode6.Undefined (und): No instruction mode defined7.System (SYS): System mode[

Writing application instances does not belong to the Linux operating system transplantation. However, to ensure the integrity of this series of articles, we provide a series of instances for developing applications for Embedded Linux. The following tools are required to write Linux applications: (1) compiler: gcc GCC is the most important development tool in Linux. It is the gnu c and C ++ compilers. Its basic usage is GCC [Options] [filenames]. We should use

register and can be read and written.R13 is a stack pointer register that holds the stack pointerR14 is the program connection register, when the BL subroutine call instruction is executed, R14 gets a R15 backup, and when an interrupt or an exception occurs, R14 saves the return value of R15R15 is a program counter(A/C) PSR: (Flag bit register)T-bit: 1--CPU in thumb State, 0--cpu in arm state;I, F (interrupt prohibit bit): The first stop interruption

ARM Architecture Reference ManualARM Instruction Framework Manual1. processor 7 Modes of Operation Processor mode Mode Number Description user usr 0b10000 normal Program execution mode fiq FIQ 0b10001 supports A High-speed