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LS1021A Ethernet Transmission

Question asked by Swanand Purankar on Feb 26, 2017
Latest reply on May 8, 2017 by Swanand Purankar



I am trying to transmit Ethernet frame on LS1021A TWR board using RGMII mode.

I followed the initialization process mentioned in the datasheet.


I have created buffer descriptors array (txbd[10]). "bufPtr" points to a data buffer.

I have loaded address of "txbd" in TBASEH and TBASE0 registers and also in TBDBPH.

In TQUEUE register, I have enabled the Queue 0.


And for transmission, I set READY, INTERRUPT (and also, LAST) flag. I was waiting for DMA to read this Buffer, Transmit the data and clear the flag. But nothing happened.


Am I missing something?