problem about spi implementation on fpga

hello everyone,
thanks for reply trickydicky sir.


1) my doubt is , i have to implement spi controller on fpga. I am going to use vertex 4 kit. But it has spi 4.2 interface.. it already has spi interface then why i need to implement spi contoller on vertex 4. I came to know spi 4.2 interface is a system packet interface. But i really didn’t get what actually system packet interface is?

2)What makes difference between spi 4.2 interface and my implementation on the fpga kit?

3)For my project[title of the project is IMPLEMENTATION OF SPI CONTROLLER ON FPGA], PROJECT DEFINITION would be As there is no SPI controller on FPGA so that it is not possible to communicate with the SPI compatible device.

PROJECT SOLUTION would be In this project complete SPI controller will be implemented on FPGA and it will be configured to work as MASTER or SLAVE.

IS project definition and project solution is right? or any corrections is required? please specify? or for my project what would be project definition and project solution?

please reply. its helps me a lot. please reply

thanks in advance
regards,
sowmya

First suggestion, please append your post to the thread where it belongs to.

Secondly, there's a disambiguation problem with your post. "SPI-4.2" addressed by Xilinx is a high speed (Gigabit per second) interface, that has nothing to do with the SPI interface standard used by a DSP processor.

A basic SPI interface is just a few lines of VHDL or Verilog code and can be written from the scratch in ten minutes.