no nios ii target connection.

[ukuma8]

eclipse is not detecting any target connection and i downloaded .sof file in FPGA. i pressed several times refersh connections but it is not detecting. in my design niosii,clk with 24mhz,on chip mem,jtag uart and pio.iam using quartus ii 13.1 ver in windows 8,cyclone iii fpga and USB blaster ii. please help..

[AnandRaj_S_Intel]

 Hi Uday,

Refresh connections after selecting the checkbox "Ignore mismatched system ID" and "Ignore mismatched system timestamp.

under Run->run configuration->Nios ii harware->new_configuration->target connection tab-> and select Ignore mismatched system ID" and "Ignore mismatched system timestamp.

Regards

Anan

[ukuma8]

Hi anand,

thanku for ur reply.

i had tried by ignoring the mismatched system id and timestap still not detecting any target connection.please help...

[AnandRaj_S_Intel]

Hi,

Maybe .sof file not loaded or tool, before concluding

Can you try using the example project?

Regards

Anand

[ukuma8]

thanku for u reply.

yes we followed example project and .sof file was loaded. I verified this by writing vhdl code (GPIO toggle with input clk 24mhz) in portmap file(top level entity) and compiled and loaded .sof file in FPGA it shows 100%. please help..

[AnandRaj_S_Intel]

​Try using different Quartus version.

Have you used example project???

[ukuma8]

please tell me quartus versions which supports cyclone iii family

[AnandRaj_S_Intel]

Cyclone iii family is supported from Quartus 10 till Quartus 13.1.

​Please check below link

https://www.intel.com/content/www/us/en/programmable/downloads/download-center.html

[ukuma8]

thanku for ur reply.

i followed tutorials (introduction to qsys,my first nios tutorial etc.) Can u give any sample example project for cyclone iii which supports quartus 13.1?

please help..

[AnandRaj_S_Intel]

​Check below link

https://fpgacloud.intel.com/devstore/platform/?acds_version=13.1&family=cyclone-iii

Are you using dev kit or custom board?

[ukuma8]

custom board

[AnandRaj_S_Intel]

​Okay,

Can you confirm if your usb blaster and usb cable are working fine with help of some other board??

If USB blaster are working fine. than problem is related to the power.

Check VCCINT, VCCIO, and VCCA pins if it is meeting it's POR requirements.

Also check the pull up / pull down resistors on configuration sides. 

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/cyc3/cyc3_ciii51010.pdf

Regards

Anand

[ukuma8]

thank u for ur reply.

i thought that .sof file was loaded 100% into fpga board means that USB Blaster -ii emulator works fine.

[ukuma8]

and also the USB Blater ii emulator supports our fpga cyclone iii(EP3C80U484I7)?

[AnandRaj_S_Intel]

​Recreate the eclipse project with correct sopcinfo and check.

[ukuma8]

thanku for ur reply.

finally after doing above posibility iam going to install low ver Quartus ii (ver 12.1) with usb blaster ii emulator.