公开(公告)号：US20080126776A1

公开(公告)日：2008-05-29

申请号：US11984952

申请日：2007-11-26

申请人： Katsumi Takayama

发明人： Katsumi Takayama

IPC分类号： G06F15/177

CPC分类号： G06F9/4401

摘要： The electronic apparatus includes: a central processing unit; a non-volatile memory which is non-rewritable and stores a boot program; a first volatile memory which enables fast reading and writing of data and does not require initialization; a second volatile memory which enables fast reading and writing of data and requires initialization; and a first flash memory which is serial and stores at least a parameter necessary for the central processing unit to perform initialization of a system in an area designated with a first physical address, and a main program to be executed by the central processing unit in an area designated with one of a second physical address and the parameter. When the electronic apparatus is powered on, the central processing unit executes the boot program stored in the non-volatile memory so that the central processing unit performs transfer of the parameter from the first flash memory to the first volatile memory by reading the parameter from the first flash memory and temporarily storing the read parameter into the first volatile memory, and then performs the initialization of the system according to the parameter stored in the first volatile memory, thereafter performs transfer of the main program stored in the first flash memory to the second volatile memory, and then starts the main program on the second volatile memory.

摘要翻译： 电子设备包括：中央处理单元; 非易失性存储器，其是不可重写的并存储引导程序; 第一易失性存储器，其能够快速读取和写入数据，并且不需要初始化; 第二易失性存储器，其能够快速读取和写入数据并需要初始化; 以及第一闪速存储器，其串行存储至少存储中央处理单元执行在由第一物理地址指定的区域中的系统的初始化所必需的参数，以及主程序，由中央处理单元执行 以第二物理地址和参数之一指定的区域。 当电子设备通电时，中央处理单元执行存储在非易失性存储器中的引导程序，使得中央处理单元通过从第一闪速存储器读取参数来执行从第一闪速存储器到第一易失性存储器的传送 第一闪速存储器并将读取参数临时存储到第一易失性存储器中，然后根据存储在第一易失性存储器中的参数来执行系统的初始化，然后执行存储在第一闪速存储器中的主程序到第二 易失性存储器，然后在第二个易失性存储器上启动主程序。