Blink led on a Cobra II running 4.3 assemblies?

Hey guys,
According to the G120 manual, this code should work, but does not.
I was able to blink the led in 4.2, but no luck since updating to 4.3

   public static void Main()
    {
     // OutputPort LED = new OutputPort(Cpu.Pin.GPIO_Pin0, false);
        OutputPort LED = new OutputPort(G120.P0_17, true);
        Thread.Sleep(200);

        for (int i = 0; i < 200; i++)
        {
            LED.Write(true);
            Thread.Sleep(200);
            LED.Write(false);
            Thread.Sleep(200);
        }

Here is the snippet from the G120 manual:
https://www.ghielectronics.com/downloads/man/G120_User_Manual.pdf

using System;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using GHI.Pins;
public class Program
{
public static void Main()
{
OutputPort LED = new OutputPort(G120.P0_17, true);
while (true)
{
LED.Write(true);
Thread.Sleep(500);
LED.Write(false);
Thread.Sleep(500);
}
}
}

Any thoughts are appreciated.

Most likely you do not have the right pin specified.

Are you trying to use the LED on the board?

Have you tried to use a pin specification from the GHI.Pins namespace?

According to the schematic the LED is on P1_15

Looks like GHI needs to update the manual :slight_smile:

whoops … This may not be clear, but examples in that manual are not for Cobra II; they are for G120 SoM. In the example sited, the assumption is that the designer has attached an LED to the GPIO pin.

on the other hand, i’ll investigate the use of the generic netmf pin.

@ Larry1 -

Was this something you tried when investigating 4.3

Jeff, yes sir

I tried both definitions in my attempt to blink the LED.
OutputPort LED = new OutputPort(Cpu.Pin.GPIO_Pin0, false);
and
OutputPort LED = new OutputPort(G120.P0_17, true);
Neither definition would change the state of the LED
If you can tell me the pin number of the LED on the Cobra II, i will try again.
Thanks for the quick reply.

Mike & Dave,
Thanks for the good suggestions and thoughts.
I am trying to drive the LED on the Cobra II.

@ Larry1 - Look for the board LED on the schematic. it will tell you which pin to use.

I could tell you which pin, but someone has already posted it. Regardless, check out the schematic.

Mike, Will do tonight. Thanks, Larry

Thanks Guys, I must admit that I seldom think about looking at the schematic. I figure the board s already build so why do I need the schematic! Wrong! A lesson learned for the future! Larry Scott