Downloading ELF Process failed!

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I am running NiosII IDE on my windows 7 professional laptop. When I first create a sopc project and complie and download *.sof into target board, then I also create a demo NiosII project "Hello world!" and debug it normally. Howerver, after I close NiosII IDE and restart it, I cann't debug it anymore eventhrough I don't change anything in both Quartus and sopc. It gives me a prompt that "Lanching hello_test Nios II hardware configuration has encourntered a problem. Downloading ELF Process failed". No matter I restart my laptop or power off my target board, it doesn't work! If I rebuild a new same sopc project and rebuild a new same NiosII project, it can work.But there is the same problem if I close it and restart it again. Please help me!:confused::confused::confused:

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Hi all,

After many day of getting into this trouble. Finally, I have found a solution.

Just stop, and then re-start your jtag server on your PC.

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This is what I did:

1. Open Services: Winkey + R, enter "services.msc" without quotes, and hit OK.

2. Look for Altera JTAG Server, hit stop, wait a second for it to stop, and then hit start.

3. Retry to run as nios hardware configuration

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If you continue to get error, please consider to open nios --> system console, then refresh connection.

Let me know if it's helpful for you.

I'm having similar issues. I can run HelloWorld Small from RAM but not from Flash. I fixed the clock issue on flash_se_reg_neg and pass timing. I ran the system console suggestions and get the following. This is the same error I'm seeing in the IDE of failing Verify. The flash address is correct with 176k available in single compressed UFM mode. The code runs in 4K of ram. SysId passes. The NIOS is in simple E mode. I'm running 17.1.1 build 593 SJ Lite Edition which is the latest version. I'm using the max10m08 eval board. I can program UFM and CFM with a POF file but don't see the program run from there either. Should blink an LED.

frank.ziegler/cygdrive/c/Max10/Software/HelloSmall

$ nios2-download -f HelloSmall.elf && nios2-terminal

nios2-download: error: -f: invalid option; use --help to show usage

frank.ziegler/cygdrive/c/Max10/Software/HelloSmall

$ nios2-download -g HelloSmall.elf && nios2-terminal

Using cable "USB-BlasterII [USB-1]", device 1, instance 0x00

Processor is already paused

Initializing CPU cache (if present)

OK

Downloaded 4KB in 0.0s

Verifying 00040000 ( 0%)

Verify failed between address 0x40000 and 0x40FBB

Leaving target processor paused

frank.ziegler/cygdrive/c/Max10/Software/HelloSmall

$ jtagconfig -n

1) USB-BlasterII [USB-1]

031820DD 10M08SA(.|ES)/10M08SC

Node 0C006E00 JTAG UART# 0

Node 10186E00 ROM/RAM/Constant# 0

Node 19104600 Nios II# 0

Node 30006E00 Signal Tap# 0

Design hash 0F3D6A27675E7B49F645