TC35i新版西门子工业GSM模块是一个支持中文短信息的工业级GSM模块,工作在EGSM900和GSM1800双频段,电源范围为直流3.3~4.8V ,电流消耗——休眠状态为3.5mA,空闲状态为25mA,发射状态为300mA(平均),2.5A峰值;可传输语音和数据信号, 功耗在EGSM900(4类)和GSM1800(1类)分别为2W和1W ,通过接口连接器和天线连接器分别连接SIM卡读卡器和天线。SIM电压为3V/1.8V,TC35i的数据接口(CMOS电平)通过AT命令可双向传输指令和数据,可选波特率为300b/s~115kb/s , 自动波特率为1.2kb/s~115kb/s。它支持Text和PDU格式的SMS(Short Message Service,短消息),可通过AT命令或关断信号实现重启和故障恢复
上传时间: 2016-03-17
上传用户:a3318966
The main purpose of this project is to add a new scheduling algorithm to GeekOS and to implement a simple synchronization primitive (semaphore). As you might have already noticed, GeekOS uses a simple priority based preemptive Round Robin algorithm. In this project, you will change this to a multilevel feedback scheduling. In addition, you will provide user programs with semaphores, a means to check the system s current time and a mechanism for passing command-line arguments
标签: scheduling algorithm implement to
上传时间: 2013-11-27
上传用户:Late_Li
Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. It can be used as a building block for SIP client software for uses such as VoIP, IM, and many other real-time and person-to-person communication services. The primary target platform for Sofia-SIP is GNU/Linux. Sofia-SIP is based on a SIP stack developed at the Nokia Research Center.
标签: specification open-source User-Agent Sofia-SIP
上传时间: 2016-03-20
上传用户:洛木卓
Making a cheap 1M SPI Rom Emulator 8 second to copy from parallel to SPI re-Program STM Serial Flash M25P10 by reading 29010 parallel ROM Running on standard 8051 32 I/O, a TTL 7407 as bus switch. Total programming time is about 8 seconds including Erase, Program
标签: re-Program SPI Emulator parallel
上传时间: 2016-03-22
上传用户:wanqunsheng
To use the ATLTrace tool: Debug an MFC or ATL project select Start from the Debug menu. Select MFC/ATL Trace Tool in the Tools menu. Expand the tree control list in the Trace List window. Here you will see the running application, any modules within that application, and the trace categories for each module. Customize, for each process, module, and category, which information is displayed in the output window. The Trace level control in the Process group is related to the ATLTRACE2 level only those ATLTRACE2 messages with a level equal to or greater than the setting in the Trace level control will be displayed in the output window. Select Apply to put your settings into effect. You can save your settings, and load them the next time you debug the application use the Save and Load buttons.
标签: Debug the ATLTrace project
上传时间: 2014-01-15
上传用户:wfl_yy
upsd_flash.c These functions are provided to help you develop your initial code. They are optimized for speed rather that size. As a result, you will see very few nested function calls. If speed is not critical, you can use function calls for common tasks (like dat polling after writing a byte to Flash) The penalty is the extra processor time to make the nested calls.
标签: upsd_flash functions are provided
上传时间: 2013-12-23
上传用户:Andy123456
Please read them carefully before you write the package to their specific functions (at least 20 characters). As far as possible not to let the station for the time you have spent on that amendment. Have to extract the password to the password
标签: carefully functions specific package
上传时间: 2016-03-30
上传用户:小儒尼尼奥
Although most of the health problems related to fast food aren t felt until middle age -- obesity and diabetes are at an all-time high --- the damage starts before children enter kindergarten.
标签: Although problems obesity related
上传时间: 2016-04-01
上传用户:WMC_geophy
Although most of the health problems related to fast food aren t felt until middle age -- obesity and diabetes are at an all-time high --- the damage starts before children enter kindergarten.
标签: Although problems obesity related
上传时间: 2013-12-15
上传用户:ggwz258
Although most of the health problems related to fast food aren t felt until middle age -- obesity and diabetes are at an all-time high --- the damage starts before children enter kindergarten.
标签: Although problems obesity related
上传时间: 2013-12-15
上传用户:hjshhyy