EDGE.. (Enhanced Data rates for GSM Evolution)

Enhanced Data rates for GSM Evolution (EDGE) (also known as Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC)) is abackward-compatible digital mobile phone technology that allows improved data transmission rates, as an extension on top of standard GSM. EDGE is considered a 3G radio technology and is part of ITU's 3G definition.^[1] EDGE was deployed on GSM networks beginning in 2003— initially by Cingular (now AT&T) in the United States.^[2]

EDGE is standardized by 3GPP as part of the GSM family, and it is an upgrade that provides more than three-fold increase in both the capacity and performance of GSM/GPRS networks. It does this by introducing sophisticated methods of coding and transmitting data, delivering higher bit-rates per radio channel.

EDGE can be used for any packet switched application, such as an Internet connection. EDGE-delivered data services create a broadband internet-like experience for the mobile phone user. High bandwidth data applications such as video services and other multimedia benefit from EGPRS' increased data capacity.

Evolved EDGE continues in Release 7 of the 3GPP standard providing reduced latency and more than doubled performance e.g. to complement High-Speed Packet Access (HSPA). Peak bit-rates of up to 1Mbit/s and typical bit-rates of 400kbit/s can be expected.

Connect Nokia 3310 LCD to LPT port

I found this circuit really simple and interesting. It is really simple to drive Nokia 3310 graphical LCD by using simple LPT cable and some PC software. Firs of all connect graphical LCD to LPT port according to following circuit:

Graphical display needs about 3.3V of supply voltage, while LPT gives about 4.5 -5V. This is why diodes are used to reduce voltage by formula: 4.5V-0.7V-0.7V=3.1V.

LCD pin numbering on Nokia 3310 LCD is as follows:

Graphical display is controlled by PCD8544 controlled. Download Controller specifications here:PCD8544.pdf

As you have noticed LPT port data pins are used for datatransfer and powering of LCD:

When hardware part is done it is time to draw some images on LCD. For this download control program (Pascal source is included in package too). Software is written to drive ports directly in DOS or win98 operating system. If you are using Win2000 or XP you might want to read: Program LPT and COM ports easily under windows NT-2000-XP.

I have copied One of solutions here:

Download PortTalk and unzip it in separate folder somewhere. Then copyallowio.exe directly to the directory where is you program which you want to run. Then create shortcut of your compiled program for instance LCD.exe. Then open files properties and in line target do following changes:

Instead of:

D:/project/LCD.exe

change to

D:/project/allowio.exe D:/project/LCD.exe /a

Remember that you must have administrator rights on computer. Dirty trick but it works.

Some prof that works – Run program and draw with left mouse button pressed. Right mouse button erases:

MAC address

Short for Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium. Consequently, each different type of network medium requires a different MAC layer.
On networks that do not conform to the IEEE 802 standards but do conform to the OSI Reference Model, the node address is called the Data Link Control (DLC) address.

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