I was very much excited as soon I got 3 sets of coolrunner with nand-x device to RGH my 4GB slim. But for the following I am really loosing my inspiration:
1. First I thought I would make my own Xilinx LPT JTAG cable (Gigli) and also made one. Got my coolrunner with 3.3 external power supply and switch into "NOR". The green (DBG) and red (PWR) light are on now. So, I connected my JTAG cable with coolrunner and LPT of PC and run iMPACT.
But my cable was not detected, also not in compatibility mood (Warning iMPACT: 923 cannot detect the cable, please check cable setup). The possible reasons may be:
a. My JTAG cable is very long !
b. Wrong circuit making!
c. LPT port problem!
d. Cable problem
But I checked my circuit (assuming my LPT power is 5v so I used the diodes & resistors), everything was OK. Being desperate I ordered TX Xilinx LPT JTAG cable. In the meanwhile do anyone have any idea why this is happening?
1. First I thought I would make my own Xilinx LPT JTAG cable (Gigli) and also made one. Got my coolrunner with 3.3 external power supply and switch into "NOR". The green (DBG) and red (PWR) light are on now. So, I connected my JTAG cable with coolrunner and LPT of PC and run iMPACT.
But my cable was not detected, also not in compatibility mood (Warning iMPACT: 923 cannot detect the cable, please check cable setup). The possible reasons may be:
a. My JTAG cable is very long !
b. Wrong circuit making!
c. LPT port problem!
d. Cable problem
But I checked my circuit (assuming my LPT power is 5v so I used the diodes & resistors), everything was OK. Being desperate I ordered TX Xilinx LPT JTAG cable. In the meanwhile do anyone have any idea why this is happening?