Re: [microblaze-uclinux] Porting help

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Richard,

Richard Klosinski wrote:

> I modified the heartbeat routine to toggle the state of the led, instead of
> setting it based upon the input "value" (which I have no clue why you would
> not want the led's to flash). 

The GPIO output state is registered in hardware. So, reading it back and 
inverting the bit is the same as using a static variable in the 
heartbeat function.

> My led's flash at about a one second rate. Im not sure how much of the
> system has to be working to get the led's to flash, but its has a timer set
> and an interrupt vector working!

Well it's a good sign - also you'll know that if you do something and 
the blinking stops, you've broken it! :)

Once I see your MHS and kernel .config I might have some more concrete 
suggestions.

John

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