wdt 中文意思是什麼
wdt
解釋
和看門狗計時器-
When & how to use watchdog ( wdt ) & constant ramp time for ramp command
看門狗（ wdt ） 、 ramp指令對固定斜率時間，何時以及如何使用？ -
The stage of hardware designing : chose sdram and flash as the physical storage of this system ; designing and realizing sdram circuit, flash circuit, watchdog circuit, rtc circuit, serial communication circuit, networking communication circuit ; the stage of software designing : designing the bootloader program with the function of downloading file with tftp protocol, flash writing and reading, serial communication, booting linux kernel and so on ; transplanting the linux 2. 4 kernel on this hardware system ; designing and realizing linux driver and give a detail of rtc and wdt drivers ’ designing and realization
軟體設計階段:針對本系統應用環境設計了有tftp文件下載、 flash讀寫、串口通信、 linux內核引導等功能的bootloader程序;通過修改linux2 . 4內核源碼中針對硬體平臺部分代碼，完成了內核linux2 . 4到本平臺的移植;驅動設計部分實現了實時時鐘、看門狗、串口、網口等硬體在本系統linux2 . 4平臺下的驅動程序，文中詳細的介紹了實時時鐘和看門狗驅動實現，特別介紹了看門狗模塊中i2c協議的軟體實現。 -
At the same time the clock chip pcf8563 and serial eeprom chip csi24c01 with reset and wdt circuit of i2c bus are used hi the system. they have not only provided the non - volatility data storage area, the supervision ability of power supply and mcu and the rtc, and its i2c bus structure has been simplified the circuit design
同時在系統中還使用了護c總線結構的時鐘晶元pcf8563和內置reset 、 wdt電路的串列eeprom晶元csi24coi ，它們不僅提供了電源和微控制器的監控功能、不揮發性的數據存儲區、實時時鐘，而且其護c總線結構簡化了電路設計。
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