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Altera_Forum
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9 years ago

Debugging the Hardware fault

I have Cyclone III fpga board with Ethernet interface and JTAG connector for Active Serial Programming through USB Blaster. If I plug in the Ethernet connector - the PC is not recognizing the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

If that LED is blinking then the FPGA must be configuring from the serial PROM/EEPROM U1. So, no. I don't think you have a problem with your EEPROM.

The fact you can't talk to the FPGA via JTAG is worrying. I've never known a 'working' board (that boots from it's EEPROM) not respond via JTAG.

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The board is not recognizing the ethernet port also when connected to a pc also

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What makes you think this? No LINK? Is the Phy (U13) getting the right clocks? Is it out of reset (RESET_N)?

Cheers,

Alex