Virtex2p, rocketIO, how to start?

[elektryk]

virtex2p datasheet

For few days I wonder how to start developing rocketIO transmition device. Because I had some strange problems with porting xapp669 to xv2p50 I began own implementation. I know for stream transmition it need some fifo and fsm, but I want just to send "something". I have connected rxdata to dipswitch, txdata to leds and clocks. Clk pin is connected to 50MHz oscilator (rocketio needs minimum 50MHz clock, I guess for internal pll to work). When I connect 100MHz osciloscope do rocketIO tx pin, I can see little noise (about 100mV) and when I change powerdown or txinvert option it influent to signal. I know 100MHz osciloscope is not enought to see transmision, but I think there should be something visible. Can anyone see into my project (ISE) attached to this post and give me a clue? Thanks in advance.

PS Maybe someone have ported xapp669 to virtex 2pro, and can show me full EDK project.

 

[deepa]

rocketio virtex 2p

do u know how can virtex 2p be programmed to achieve run time reconfigurability??

 

[elektryk]

vertex2p ise

do u know how can virtex 2p be programmed to achieve run time reconfigurability??

There were some application notes about this at xilinx website, but my problem is much nearer. Now I have problem with synchronisation between serializer and deserializer. I gave them same clock and use internal serial loopback, and data received is not what I send. On internal parallel loopback seems to work 100%.

 

[darylz]

xilinx rocketio edk

pls be noticed that the fifo on tx side would not recover from collision by itself. U must reset it before operation.

 

[elektryk]

virtex2p

pls be noticed that the fifo on tx side would not recover from collision by itself.

What is that "collision"?

 

[hawkbw]

rocketio start

before you change the frequency of oscilator,
do you synthesis the project again, using the
timing ucf ................

 

[darylz]

study the datasheet, you need not the demo board.

 

[indianarcher]

The best way to start is , read Abhijit Athavale's book on serial I/O.It is available at following link **broken link removed**.