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AlexHalf's avatar
AlexHalf
Icon for New Contributor rankNew Contributor
1 year ago

CONF_DONE pin failed to go high problem

Hello I am using EP4CGX150CF23C8N FPGA. Configuration is done in AS mode from EPCQ128ASI16N flash. All I/O banks are 3.3V. FPGA initial programming done through JTAG with Terasic USB blaster. Attach...
Configuration
Farabi's avatar
Farabi
Icon for Regular Contributor rankRegular Contributor
1 year ago

Hello,


Do you have further question?


regards,

Farabi


HAlex's avatar
HAlex
Icon for Occasional Contributor rankOccasional Contributor
1 year ago

Hello

The NCE pin is do connected to GND as shown in the attached PDF of first message.

My questions as I posted:

1. Can it be that all this caused by jic files?

2. You think that maybe the issues I have are because of defected initial burning equipment like USB blaster or momentary problems in power supply that damaged 2 FPGA's?

3. You think that I can ignore these phenomenon based on fact that I have few hundreds of working boards (even they burned only once from JTAG, while all updates if were needed were done from serial port with .flash files) or I must dig in my design in searching design issues?

Thank you

Alex