參數(shù)資料
型號(hào): RX30000
英文描述: RX4000 Installation | User's Manual[10/2001]
中文描述: RX4000安裝|用戶手冊(cè)[10/2001]
文件頁數(shù): 40/111頁
文件大?。?/td> 391K
代理商: RX30000
CHAPTER 4 USER OWN CODING PART
User's Manual U13687EJ1V2UM
40
4.2 BOOT PROCESSING
Boot processing is the function allocated to the reset entry of the V
R
4100 Series and V
R
4300 Series. Boot
processing is performed as the first procedure of the system initialization processing.
As provided as standard, the boot processing (function name: boot) executes the following:
Setting the system register
Note
Initializing the cache
Setting up the gp and tp registers
Initializing the memory areas, clearing to the state without initial values
Invoking the hardware initialization section
Transferring control to the nucleus initialization section
Note
The system reserves the KI register as the base register for the SBT. Do not set the KI register in the
boot processing.
Caution
The boot processing program (hardware initialization section) that is provided as standard with
RX4000 is coded on the assumption that the system operates in one of the environments
specified below. Therefore, if the user deploys an operating environment other than those
specified below or changes the mode setting of the peripheral controller, the boot processing
program needs to be rewritten.
V
R
4100 Series board produced by Midas Lab Co., Ltd.: RTE- V
R
4100-PC
V
R
4300 Series board produced by Midas Lab Co., Ltd.: RTE- V
R
4300-PC
Remark
The coding as the standard provision for boot processing is found in the following file (directory):
nectools32\smp4100_mwerks\rx4000\src\boot.s
nectools32\smp4300_mwerks\rx4000\src\boot.s
nectools32\smp4100_ghs\rx4000\src\boot.mip
nectools32\smp4300_ghs\rx4000\src\boot.mip
Figure 4-1 shows the position of the boot processing.
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