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Altera_Forum
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15 years ago

Unable to establish link between PCS and PHY in SGMII mode

Hi, I was trying to use System Console for setting up Triple Speed Ethernet design in SGMII mode. I was able to successfully configure the MAC and PHY registers. After this i configured the PCS...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I find the signals led_link and led_col to be always high in Signal Tap. I am using a Terasic DE4 board.

For the reference ethernet design using Nios, when i connect the ethernet cable i find the LEDs corresponding to Rx and Tx to be blinking all the time. But for the design i am doing with System console the Rx LED blinks for some time, while the Tx never blinks.

My PHY configuration seems to be working fine, but in PCS a successful link synchronization does not appear to be happening. Any idea why this could be happening?.