ethernet problem with evm omapL137

AnonymousContent

Hi,

I have an evm omap l137 and I want use It's ethernet but when i run emac_loopback example it print the following in stdout:

"01 Testing Ethernet RMII loopback...
Waiting for link...
Link Detected
PHY1[0] = 3120
PHY1[1] = 782c
PHY2[0] = 3120
PHY2[1] = 782c

FAIL... error code 3... quitting"

this errors com from this codes:

  " if ( ( status = EMAC_FRAME64 ) != 2 )           // Check # of 64 byte frames
        errors++;
    EMAC_FRAME64 = status;

    if ( ( status = EMAC_FRAME128T255 ) != 2 )      // Check # of 128-255 byte frames
          errors++;
    EMAC_FRAME128T255 = status;

if ( ( status = EMAC_RXGOODFRAMES ) != 2 ) // Check # of Good RX frames
errors++;"

what should I do now? why in this example (specially in above codes) you check some registers with 2?

Tahereh Vaezi.

over 15 years ago

0 tlee over 15 years ago

TI__Guru 62975 points

Tahereh,

Do you have an ethernet loopback plug installed on one of the ethernet ports? The emac_loopback test requires one.

-Tommy

0 AnonymousContent over 15 years ago in reply to tlee

TI__Expert 4605 points

Hi Tommy

for test your ethernet run emac_loopback and use a ethernet jack loopback, you can buy it or make it your self(I made it myself because I don't need it anymore). If you search in inthernet "ethernet jack loopback" you can finde how to make it (you should connect : pin1-->pin3,pin2-->pin6,pin4-->pin7,pin5-->pin8). This example had been written for one of the ethernet jacks.

regards

Tahereh Vaezi

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ethernet problem with evm omapL137