TechMax的专栏

This document is used to record my understanding against camera souce code.PART 1: Hardware connectionTVP5150 TCC8900======= =======SDA | | GPIO_A1CAM_I2C dataSCL | CAM_I2C

This post is used to depict how process 0 & 1 were created, based on TCC8900

1. The system call vector numbers are defined in arch/arm/include/asm/unistd.h#define __NR_restart_syscall(__NR_SYSCALL_BASE+  0)#define __NR_exit (__NR_SYSCALL_BASE+  1)#define __NR_fork (__N

This post tries to depict a inside-view about Linux process / thread. In addition to explain the relative theory / idea , you will see examples in real world. specifically, Linux 2.6.28 on ARM 11.

This post tries to describe how Linux initializes the memory system, based on TCC8900 BSP.First of all, we need to understand the TCC8900's memory address map:(according to official chip spec)

Anotamy of Linux SLAB layerWhat it for?============The Linux kernel provides the SLAB layer, called the slab allocator, to allocateand free frequently used data structures.Where

TCC8900 BSP (linux 2.6.28)1) TEXT_OFFSET                0x00100000    The Kernel's start address (offset) within RAM../arch/arm/Makefile#Default valuehead-y        := arch/arm/kernel/head$(MMU

This post illustrates ARM virtual - physical memory translation. Based on TCC8900.TCC8900 built based on ARM1176JZF-S, ARM’s proprietary RISC CPU core. The ARM1176JZF-S processor incorporates

*******************************************************************************---Below was printed at arc/arm/mm/fault.c ---> __do_kernel_fault(); ************************************************

In embedded Linux, the “classic” mean of registering a device is to add the device’s info into board within arch/ folder. There is another approach to do this, without interfering the arch/ directory b