the ERROR 82 in the JTAG server

Well firstly I have already uploaded the .sof file to the processor successfully.

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I would test that your hardware connectivity is good by issuing the command `jtagconfig -n` - this should include a Nios II debug agent node.

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What I see in the shell is :

bash-3.1$ jtagconfig -n
1) USB-Blaster 
  020B30DD   EP2C(15|20)
    Node 0C006E00  JTAG UART# 0
    Node 19104600  Nios II# 0

I would then test that you can download to the Nios II processor with a command such as `nios2-download <myfile.elf>`.

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Well the shell uploads the file fine :

bash-3.1$ nios2-download D:/home/jbww/Design/Altera/Eclipse_v12/NiosProjects/ap
lc_binsr_tst/aplc_binsr_tst.elf
Using cable "USB-Blaster ", device 1, instance 0x00
Pausing target processor: OK
Initializing CPU cache (if present)
OK
Downloaded 408KB in 7.0s (58.2KB/s)
Verified OK
Leaving target processor paused

To actually run the code I go back to Eclipse, do "run as" "NiodII Hardware" :

Now I get message "System Console Model in invalid" "Cannot Launch"

Close Console - same message.

Close programmer, Close Eclipse

Load Eclipse, Load programmer

Uoload .sof, run :

"Downloading Elf failed"

Close programmer

load standalone programmer

Uoload .sof, run :

"Downloading Elf failed"

Hmm, it is now a couple of days since I have been able to run a program ...

Exit from programmer and eclipse.

Run monitor program - successfully upload and run an example .s program.

Close monitor program

Run Standalone programmer, upload .sof

Run Eclipse, run matrix solving program

connects fine, uploads fine, solves matrix fine.

OK,

back to binsr program - clean, build (OK)

upload :

Executing: nios2-app-update-makefile --list-src-files --app-dir D:\home\jbww\Design\Altera\Eclipse_v12\NiosProjects\aplc_binsr_tst (D:\home\jbww\Design\Altera\Eclipse_v12\NiosProjects\aplc_binsr_tst)

tst_binsr.c

Downloading Elf Process Failed.

So what is going on ? This has run fine previously.

I will dig more.

Hmm it seems to have been a corruption in the Makefile.

I rebuilt the application, copied in the same .c file, and it now works fine.