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Altera_Forum
Honored Contributor
12 years agoHi,
Please excuse my lack of experience using scatter gather DMA, but is there a way to test the SGDMA? I did the scope analyze on the GMII interface and the enet_gtx_clk is running 125MHz but the transmit control signal remains low. In QSYS, the SGDMA transmit interface I have CSR -> CPU.data_master descriptor_read and descriptor_write -> Onchip Dscriptor_memory.s1 m_read -> DDR3.avi out -> tse_mac.transmit