EPLD Lattice Prog Problem

May 04, 2006 0 Replies

Hi all,



I'm developping an application on PowerPC to programm a Lattice EPLD. For that, I'm using ispVM Lattice player.



When I programm the CPLD which is already programmed by JTAG connector, all is running.



But when I programm a new CPLD which has never been programmed, the programmation failed and I have message from VME player to tell that TDO signal is wrong.



The CPLD is in a JTAG chain with a FPGA.



Have you got an idea about my problem ???



Many thanks in advance.



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