Altera_Forum
Honored Contributor
11 years agoControl panel 2.1 cannot see DE1
I am using a DE1 with Quartus 13.1 and the Control Panel 2.0.1 on Windows 7 64 bit. When I first received the DE1 the control panel connected and barring a minor issue where I had to reboot the PC to be able to write the DE1 flash it all worked as expected. Quartus works perfectly and I don't have any of the issues that others have reported getting the programmer USB interface to work.
I now need to modify the DE1 flash again and I cannot get the Control panel application to see the DE1 (it tells me to check the power and USB cable) I have tried the suggestion on the Altera site to manually program the control panel .sof and run the niosdownload.bat file. Both of these operations complete successfully but the control panel application still cannot connect. The VGA output displays the blended colour bars image after doing this. I have also tried the above steps, then rebooted the PC and run the control panel (just in case the programmer or batch file had not released the interface correctly) but the same failure occurs. Is there anything else I might have overlooked? Is there a more convenient tool for writing the flash? Thanks, Andy