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by hoelbsf
Thu May 17, 2018 11:28 am
Forum: Compute Module
Topic: CM3 LAN9514 not detected
Replies: 2
Views: 1111

Re: CM3 LAN9514 not detected

Thank you for the help, since then i found the problem, a ferrite bead was missing between VDD1V8PLL and the main 1V8 bus, as soon as i fixed that the LAN9514 is properly recognized and working. It is good to know the LAN9514 can be tested without manual reset nor RC constant circuit. I still wonder...
by hoelbsf
Thu May 17, 2018 7:37 am
Forum: Compute Module
Topic: CM3 LAN9514 not detected
Replies: 2
Views: 1111

CM3 LAN9514 not detected

Hi, I have a custom carrier board with CM3 and LAN9514, PCB has been designed following an RPI official schematic with LAN9512 (essentially same than LAN9514 with less USB downstream ports), i use a 25Mhz crystal oscillator, the NRESET is pulled high and connected to GPIO6 of CM3 for reset control. ...
by hoelbsf
Sun Feb 11, 2018 9:38 pm
Forum: Compute Module
Topic: best option for USB & Ethernet
Replies: 0
Views: 501

best option for USB & Ethernet

Hi, I am currently in the process of making a carrier board for RPI CM3. The board does need USB, ethernet, 4G and Wifi so i need to add and USB HUB and ethernet controller (4G and wifi are MiniPCIexpress via USB). I have read the thread about LAN9514 https://www.raspberrypi.org/forums/viewtopic.php...

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