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Altera_Forum
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8 years ago

DE0-Nano - Quartus Lite 17.1 - Error (209040): Can't access JTAG chain

Hello, I am trying to use a DE0-Nano for basic training but I am stuck on the Programming Device task, basically because it fails with the error error (209040): can't access jtag chain ...
Altera_Forum's avatar
Altera_Forum
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8 years ago

Hi,

1.Probe the TCK signal to ensure it is a clean signal with no overshoot, undershoot,or ringing. For a chain of devices, you should probe each device in the chain as

close to the TCK pin as possible. Noise on any of these pins could cause JTAG programming to fail for the entire chain?

2.Check the passive components in power supply path?

Best Regards,

Anand Raj Shankar

(This message was posted on behalf of Intel Corporation)