How to do Ethernet internal loop back test in IMX6dl?

ismailkk — Thu, 25 Apr 2013 13:13:51 GMT

My ethernet is working properly from uboot in normal mode of operation on iMx6dl. but when I carried out an internel MAC loop back it doesn't generate a receive event and i donot get a value in the receive buffer.

Following is the procedure i have done ,

1. Send an ethernet ping packet in normal mode, polled for receive event ,got reply and verified my transmit and receive procedures are perfect.

2. Enabled Loop back mode by setting up loop back bit in the receive control register.

3. send a packet (verified packet is not transmitted to the network).

4. poll for receive event .

....

but i neither get a receive event nor any values in receive buffer .

Is there something else i have to do rather than setting loopback bit.

Please help.

ismail

Re: How to do Ethernet internal loop back test in IMX6dl?

maheshmahadeva1 — Fri, 10 May 2013 17:24:41 GMT

Try setting this register to RCR | 0xD i.e set bits 3,2 and 0.

Best regards,

-Mahesh

Re: How to do Ethernet internal loop back test in IMX6dl?

ismailkk — Tue, 14 May 2013 06:05:50 GMT

Bit 3 promiscuous mode was my key....i was doing everything but the bit 3..thanks a lot for you answer Mahesh Mahadevan.

topic How to do Ethernet internal loop back test in IMX6dl? in i.MX Processors

How to do Ethernet internal loop back test in IMX6dl?

Re: How to do Ethernet internal loop back test in IMX6dl?

Re: How to do Ethernet internal loop back test in IMX6dl?