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Altera_Forum's avatar
Altera_Forum
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17 years ago

unable to scan device chain. cann't scan jtag chain

Hi, I am using Nios II Embedded Evaluation Kit (Cyclone III - EP3C25F324C6NES). Though it is having direct programming capability through the Usb cable. I like to test the Program...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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Yah I observed that the Load LED (Blue) does not glow when I connect the USB Byte Blaster in J4 slot .

But when I connect through the USB cable then it is glowing ....

So, what could be the answer now ???

Is that the fault with the USB Byte Blaster ???

-Srinath.

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Hi Srinath,

I don't know your Evaluation board very well, but as I remember from other board it could be that there are additional IC's in the Jtag Chain, like a Flash or MAX device. Is there a chapter in your board documentation how to setup the JTAG chain?