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Ethernet LEDs

Posted by timgoh0

on Apr 03 2010 11:17 AM

For those of you who have gotten your evaluation kit: Do the ethernet LEDs work? The included qs-safertos demo does not initialize them by default, but even after adding

Code:



     
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_2 | PIO_PIN_3);

the LEDs do not blink. Tests with a multimeter show 1.1V of forward drop and nothing in reverse.

Does anyone have working LEDs?

Posted by jrmymllr49452

on Apr 05 2010 10:38 AM

Expert2110 points

Mine work, but I haven't tried the demo you mention. Here's what I'm doing with regard to these outputs:

Code:



     GPIOPinConfigure(GPIO_PF2_LED1);
    GPIOPinConfigure(GPIO_PF3_LED0);
    GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_2 | GPIO_PIN_3);

Posted by abiven yves-marie

on May 03 2011 11:04 AM

Prodigy160 points

Hi,

Have you solve you problem, i have the same trouble?

regards

yves-Marie

Posted by Stanislav Abrashov

on May 03 2011 14:09 PM

Prodigy10 points

This code is working

SysCtlPeripheralEnable(SYSCTL_PERIPH_ETH);
SysCtlPeripheralReset(SYSCTL_PERIPH_ETH);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
GPIOPinConfigure(GPIO_PF2_LED1);
GPIOPinConfigure(GPIO_PF3_LED0);
GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_2 | GPIO_PIN_3);

Posted by Shawn Gardner

on Mar 07 2012 12:58 PM

Prodigy130 points

I have a requirement to turn off the two ethernet LEDs upon command after they have been on. And also to turn them back on when commanded. I thought this code would work, but they never turn off. Any suggestions?

                        if (g_bEnableLEDs)
                       {
                           GPIOPinTypeEthernetLED(GPIO_PORTF_BASE, GPIO_PIN_2 | GPIO_PIN_3);
                       }
                       else // turn off Ethernet LEDs
                       {
                           GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_2 | GPIO_PIN_3);
                           GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_2 | GPIO_PIN_3, 0);
                       }

Posted by slandrum

on Mar 07 2012 13:03 PM

Mastermind9510 points

Check to see if the LEDs are wired to be on when the pin is high, or wired to be on when the pin is low. You may have to set the pins high to turn off the LEDs.

Posted by Shawn Gardner

on Mar 08 2012 06:58 AM

Prodigy130 points

That worked. Thanks slandrum.