Ethernet PHY

[saida]

hi

i am designed a custom i.mx6 based board with atheros PHY(ref is Sabre SD board)

Ehternet link is not established (auto negotiation is not working properly)

some times link is establishing and transmitting with missing packets

when i do restart it is not establishing the link

what could be the problem ?

is any pcb guide lines should i follow ?

thanks and regards

saida

[igorpadykov]

Hi Saida

one can check rgmii timings with oscilloscope using

Table 58. RGMII Signal Switching Specifications i.MX6Q Satasheet

https://www.nxp.com/docs/en/data-sheet/IMX6DQCEC.pdf 

and hardware requirements described in Hardware Guide

https://www.nxp.com/webapp/Download?colCode=IMX6DQ6SDLHDG 

Best regards
igor
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