[App_rpt-users] All Star Link GPIO Odroid U3

[(KP4TR)Ramon Gonzalez]

To add to this, I have a fan script I modified from another project to 
use with app_rpt that could be adapted for a PTT and COS.
http://latinovoip.net/allstar-and-the-gpio-fan-script-for-dmk-engineering-uri/

You cound use the Wiring PI project that I believe can be used with Odroid.
See: https://github.com/hardkernel/wiringPi

Pretty sure between these 2 projects you can use the events management 
subsystem to accomplish this:
http://ohnosec.org/drupal/node/176


On 4/27/2015 5:42 PM, mike at midnighteng.com wrote:
> Luis,
>
> First I will say I don't know first hand any of the product you are using
> and someone who does may have a better answer for you.
>
> Once you can construct a command line to turn the gpio pin on and off, or
> read the pin,
>
> you can use "on event" command in rpt.conf in conjunction with that gpio
> command string to equate it to cor and ptt activation.
>
> Sorry I can't be more specific, but it is a direction to look at and I
> think it would work. There are probably other methods to do the same.
>
> ...mike/kb8jnm
>
>
>> I am trying to use All Star Link without modifying a cm 108 chip. I am
>> trying to use the GPIO pins on the Odroid U3 expansion I/O board to
>> control
>> the repeater logic signals (COR/PTT) but all I could find was information
>> on using either the GPIO pins on the cm108 fob (which must be modified to
>> use) or using a parallel port. The Odroid U3 doesn't have a parallel port
>> and I think the native GPIO pins should have the capacity to use the
>> COR/PTT signals.
>>
>> I can't find any information on how to go about using the native GPIO pins
>> on an sbc for All Star Link. Is there a way to do this?
>>
>> My thoughts on an approach to this:
>> 1. create a driver or port that uses the GPIO pins as a parallel port
>> 2. provide a memory address to the rpt.conf file that has a value
>> corresponding to the GPIO status so that it may be read as a parallel port
>> 3. alter the software to use native GPIO as another option as opposed to
>> parallel port
>>
>> I am not sure how to approach any of these options. I think option 3 would
>> be best but I don't know how this is possible. May i get some suggestions
>> or help regarding this? Thanks!
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