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Altera_Forum's avatar
Altera_Forum
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19 years ago

gdb-server can't find Cyclone II board

I'm trying to connect to a Cyclone II board using jtagd and nios2-gdb-server-wrapped under Linux. They seem to find the USBBlaster OK -- the blue LED flashes briefly when I start the gdb-serve...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Hey there!

I think that you're probably seeing things OK. The reason the tool isn't identifying the devices is that you're probably missing a pgm_parts file. You may also want to take a look at the information, regarding this topic, on the Altera web site (http://www.altera.com/support/software/drivers/dri-usb_b-lnx.html). It could be that you don't have correct USB dev permissions set.

I would next try taking a look at the output of 'jtagconfig -n' or 'jtagconfig -d'. It should look something like this: 

1) USB-Blaster 
  020010DD   EP1S10     <--- This is your FPGA on the JTAG chain.
    Node 11104600       <--- This is your JTAG debug module.
    Node 0C006E00       <--- This is the jtag_uart in my design (you might or might not see this...)

Cheers,

- slacker