10-04-2013 05:10 AM
1) What JTAG programming cable are you using and how have you verified your JTAG cable is good.
2) It doesn't matter what JP2 configuration mode jumpers are set to when using the JTAG port to configure the FPGA. JTAG overrides the configuration mode pins.
10-04-2013 05:56 AM
1) I am using:
platform cable usb II: model DLC10
Actually I am not sure if the cable is good or not, but I tried 3 cables, and I got the same error message, so I don't think that is a problem of jTAG cable.
2) My teacher tested the board, she found that if the jTAG cable isn't connected, pin 2 of J9 remains at 2.5V, but if she connect the cable, there is a voltage drop immediately, so cable usb cann't detect the board it think the boart isn't powered. But I don't know what can cause this problem? diode, capacitances, or maybe a open circuit somewhere?
10-04-2013 07:42 AM
Thanks a lot.
I think I have to contact Avnet FAE, I did connect just one JTAG with my PC. My teacher tested the board, we think it's a hardware problem, and more precisely maybe a power supply problem.