CycloneII-JTAG Mode

Altera_Forum · ‎08-04-2009

Hi, I'm using CycloneII(EP2C8Q208).

my problem is can't configure jtag mode.

so i checked pin number. but i couldn't found error.

and i checked power supply but that's working.

i using usb_blaster. and usb_blaster is working.

help me!! It's crazy for me!!

Altera_Forum · ‎08-05-2009

You haven't mentioned what error is shown by QUARTUSII.

Have you tried the following?

1. Assignments>Device>Device and Pin options> Configuration

select configuration scheme as active serial

2. Assignments>Device>Device and Pin options> unused pins as input tri-stated

3. In the programmer select mode as JTAG

4. And the file to select is .sof and not .pof

Altera_Forum · ‎08-05-2009

Thank you Altera Pupil.

but it didn't work and show this message.

"Unable to scan device chain. Can't scan JTAG mode."

ps. I connected usb_blaster i clicked Auto detect.

Altera_Forum · ‎08-05-2009

Hi,

This error happens when QUARTUSII can't detect the device for programming.

possible reasons

1. If u r using more than one device for programming and QUARTUSII detects some mismatch in no: of devices.

2.JTAG server is not running.

3.May be u r system requires driver for USB-blaster.

Altera_Forum · ‎08-05-2009

In the programmer if you click hardware setup in hardware settings are u able to see currently selected hardware as USB blaster

Altera_Forum · ‎08-05-2009

The most easy way to see, if the Quartus programmer is actually accessing the USB Blaster is to watch the blue LED.

If USB Blaster is accessed, but can't scan the device chain, there's most likely a hardware issue with the board. The Quartus Programmer has debugging functions to trace the JTAG signals in this case.