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Altera_Forum
Honored Contributor
15 years agoIf you're getting a link then your PHY is probably fine. Not seeing TX activity is odd. The first thing that comes to mind is to make sure that your SGDMA controllers are set up properly. I'd drill down into the TSE mac driver and set some breakpoints to see what's going on during a transmit. make sure the interrupt is coming back from the SGDMA controller indicated that the transmit finished successfully.
You could also put signaltap on the Avalon streaming connection between the SGDMA controller and the MAC and make sure you're seeing the data transfer there. Jake