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Hot_Coil's avatar
Hot_Coil
Icon for New Contributor rankNew Contributor
2 months ago

Having trouble programming Cyclone V

So I've built a custom FPGA development board that basically breaks out all the IO to headers, groups the power into 3 rails driven by an external bench supply and I've adjusted my J-tag wiring to ma...
Farabi's avatar
Farabi
Icon for Regular Contributor rankRegular Contributor
2 months ago

Hello,


To make sure your power supply to FPGA meeting the FPGA requirements, could you please check below signals?

1- nCONFIG(active low) - turn low-then-high when FPGA completed power ramp up and start to enter configuration mode

2- nSTATUS(active low) - turn low-then-high when FPGA enters configuration mode.

3- CONF_DONE (active high)- turn high when FPGA completed configuration, and enter user mode.


If you dont see activity of above signals, the power supply is not meeting device requirements.


regards,

Farabi