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Comp.Arch.FPGA | RocketIO in 32-bit Mode
There are 3 messages in this thread.
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RocketIO in 32-bit Mode - 2005-02-10 21:46:00
Hi, We are using RocketIO (1GHz Fibre Channel) in 32-bit mode in a Virtex-II Pro 50. We are using the CUSTOM_GT and believe that all the attributes are set correctly. The problem we are having is in our simulations. When data is received it seams that the Comma character is mis-aligned. According to the documention, this can happen and the signal RXREALIGN will indicate when re-alignment of the data is necessary. However, we never see RXREALIGN go high in our simulations. Anyone had similar problems or got any ideas... Thanks, Jeff______________________________
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Re: RocketIO in 32-bit Mode - Marc Randolph - 2005-02-11 07:38:00
j...@harris.com wrote: > Hi, > > We are using RocketIO (1GHz Fibre Channel) in 32-bit mode in a > Virtex-II Pro 50. We are using the CUSTOM_GT and believe that all the > attributes are set correctly. The problem we are having is in our > simulations. When data is received it seams that the Comma character > is mis-aligned. According to the documention, this can happen and the > signal RXREALIGN will indicate when re-alignment of the data is > necessary. However, we never see RXREALIGN go high in our simulations. > Anyone had similar problems or got any ideas... Howdy Jeff, You've probably already seen this, and I'm probably not reading this correctly, but does http://www.xilinx.com/xlnx/xil_ans_display.jsp?getPagePath=14994 say that you can't do comma alignment in 32 bit mode? Good luck, Marc______________________________
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Re: RocketIO in 32-bit Mode - Antti Lukats - 2005-02-11 07:49:00
"Marc Randolph" <m...@my-deja.com> schrieb im Newsbeitrag news:1...@l41g2000cwc.googlegroups.com... > > j...@harris.com wrote: > > Hi, > > signal RXREALIGN will indicate when re-alignment of the data is > > necessary. However, we never see RXREALIGN go high in our > simulations. > > Anyone had similar problems or got any ideas... > > Howdy Jeff, > > You've probably already seen this, and I'm probably not reading this > correctly, but does > http://www.xilinx.com/xlnx/xil_ans_display.jsp?getPagePath=14994 > say that you can't do comma alignment in 32 bit mode? its not possible to align to 32 bit, thats for sure. but I think it should align to 16 bits that should work ?? Antti