DE0 FPGA board , how to connect it to another FGPA wirelessly using two xbee sensors

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okii that was harsh

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No it wasn't. Its called "advice". Learn to take it.

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1) how could i connect xbee module to FPGA ? and what kind of interface langauage i will be using?

2)in the data sheet it is possible to make two xbee modules to connect but , is it possible to use it to send data thorough FPGA ??

3)in case of being able to make them communicate , from where i can start teaching my self to write the code for it to use in my project?

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Obviously you read the data sheet, but of course its all gibberish unless you've had to do this type of thing before, so I'll take a quick look and point you in the right direction.

p5 and 6 have the electrical specifications. The important questions to ask are what is VCC and how do I talk to the module. p5 shows VCC = 3.3V which means it is compatible with the FPGA I/O pins. p6 indicates that communications is via a UART and some logic levels. p7 Describes how you talk to the thing - look at Figure 2‐01 - replace "Microcontroller" with "FPGA" and you'll see where your design has to fit into the picture.

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here's the my project proposal ...

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Great. Now make sure to put that in the report that you need to hand in.

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The objective of this project is to enable users to remotely control their home appliances and systems using a WSN and cell phone-based interfaces. To access the control unit, the user should type an authentication code via Keypad. Upon being properly authenticated, the cell phone-based interface at home (control unit) would relay the commands to a FPGA kit that would perform the required function/action ...

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Do the Xbee modules "speak" the same wireless language as a cell phone? If not, you cannot talk to the module from your phone.

p4 of the document states they are ZigBee/IEEE 802.15.4 compliant. Does your phone speak Zigbee?

I know most phones speak Bluetooth (to talk to hands-free devices), but I'm not sure about Zigbee.

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The following is a list of expected end products and other deliverables.

1.) A FPGA controller module that can perform the following:

a. Receive instructions and commands from a messaging device on a communication network

b. Monitor a device status from an electronic interface

c. Control target devices through an electrical interface

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Why have you selected an FPGA for this task? What you are proposing is really a microcontroller project. Of course, you may have been told to implement this using an FPGA. In that case, I would recommend using a NIOS microcontroller for most tasks, and some HDL for specific control interfaces.

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Technology Considerations

The considerations for this system will include a choice of networks, communication protocols, and interfaces.

1.) Cellular Networks: The widely available networks are based on GSM. This network provides a wide area of coverage and can be utilized more cost-effectively for this project.

2.) Communication protocols: The available communication protocols are UART,DTMF and SMS. The SMS is the most efficient because this project requires a cellular communication and limited data to be sent.

3.) I/O interfaces between FPGA kit and devices: Serial or parallel I/O will be considered as options for connection between the GSM receiver and the FPGA kit. Using the FPGA, a control circuit will be implemented to control the electrical appliances.

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The modules you have selected are not GSM, they are Zigbee.

Cheers,

Dave