Problem Downloading ELF

[Altera_Forum]

Hi All, 

I have worked my way through the first_nios2_system tutorial. I program the FPGA (DE0 board) fine but when, in Nios II, I try to download the count_binary example I get the following error:  Error: You must pass an integer between 0 and 255 as an argument to --instance  usage: nios2-gdb-server [-h/--help] [-c/--cable <cable name>]  [-d/--device <device index>] [-i/--instance <instance>]  [-s/--sidp <address>] [-I/--id <id>] [-t/--timestamp <timestamp>]  [-w/--wait <seconds>] [--no-verify] [-g/--go] [--stop]  [--tcpport=<port> | auto] [--tcpdebug] [--tcptimeout <seconds>]  [--tcppersist] [--thread-vars <vars>]   [--write-gmon <gmonfile>] [--wait-target-exit]  <filename.srec>*   -h/--help Print this message   --write-pid <filename> Write the process ID to the file specified  --signal-pid <filename> Send a SIGUSR1 to the other process when ready   -c/--cable <cable name> Specifies which JTAG cable to use (not needed if  you only have one cable)  -d/--device <device index> Specifies in which device you want to look for the  Nios II OCI core (1 = device nearest TDI etc.)  -i/--instance <instance> Specifies the INSTANCE value of the JTAG debug core  (not needed if there is exactly one on the chain)   -r/--reset-target Always reset the target system before use   -C/--init-cache Always initialize target processor cache before use   -s/--sidp <address> Base-address of System ID peripheral on target  -I/--id <system-id-value> Unique ID code for target system  -t/--timestamp <time-stamp> Timestamp for target-system (when last generated)  --accept-bad-sysid Continue even if the system ID comparison fails   <filename.srec>* S-Record file(s) to download to the target  --no-verify Don't verify after downloading   -w/--wait <seconds> Wait for time specified before starting processor  (signal USR1 will terminate the wait early)  -g/--go Run processor from entry point after downloading  --stop Stop processor (leave it in a paused state).   --tcpport <port> | auto Listen on specified TCP port for a connection from  GDB (with "auto" a free port will be used).  --tcpdebug Display the GDB remote protocol running over TCP  --tcptimeout <seconds> Timeout if GDB has not connected in time specified  --tcppersist Don't stop when GDB disconnects  --thread-vars <vars> Decode target thread list using specified string   --write-gmon <gmonfile> Wait for target to complete and write GMON data  (if available) to the file specified  --wait-target-exit Wait for target to complete and return target exit  code as our return code if no other errors  The processor state after execution is chosen as follows:  1) If the GDB remote protocol is enabled then this chooses the state.  2) If the --go option is specified then the processor will be started.  3) If the --stop option is specified then the processor will be left paused.  4) If a file is downloaded or the procesor is reset then it will be paused.  5) Otherwise, the processor state will be restored.  The "LOAD" LED blinks once on the DE0 board when it is attempting to download. Any ideas?  Thanks  Rich

[Altera_Forum]

This error is strange: 

--- Quote Start ---  Error: You must pass an integer between 0 and 255 as an argument to --instance  --- Quote End ---   In the target connection window, do you see one instance and is it selected?

[Altera_Forum]

--- Quote Start ---  This error is strange: In the target connection window, do you see one instance and is it selected?  --- Quote End ---    I think the problem was related to me starting with an example project/bsp. I created a new project with a generic bsp and it works.  Thanks  rich