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Altera_Forum's avatar
Altera_Forum
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21 years ago

Ethernet and DMA

Hi everyone, I'm working with a LwIP Stack (only using UDP) and make some timing measurements to find the nottlenecks of the stack. So I saw that the data transfer to the SMSC chip needs...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

@ tns1: I still use the 4.2 Version. I had no time to test the DMA controller with the SMSC chip but I'll test it next week. I read the errata for Quartus 5 and the SMSC.

For the 4.2 this problem is not mentioned.

@amyler: I know the 0x0000 for UDP checksum is valid. But somehow I should check if the received data is okay. My HW checksum design works in the siumlation

http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/biggrin.gif . The real test will be next week.