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function RPI_PinISR(pin, edgetype, fn)
// Function to assign a function to be run when an interrupt occurs on
// specified pin.
//
// Calling Sequence
// RPI_PinISR(pin, edgetype, fn)
//
// Parameters
// pin : pin whose interrupt is to be configured
// edgetype: edge on which interrupt is to be monitored
// 1 -> Falling egde
// 2 -> Rising egde
// 3 -> Both egde
// fn: name of the function to be executed on interrupt occurance
// Description
// This functions monitors interrupt on specified pin for specified edge,
// When that interrupt occurs, function specified by 'fn' is executed.
// Examples
// RPI_PinISR(12, 0, Pin12ISR) //executes 'Pin12ISR' on falling edge on
// pin 12
// See also
// RPI_ThreadCreate RPI_DigitalSetup
//
//
// Authors
// Siddhesh Wani
// -----------------------------------------------------------------
// This is curretly dummy function. It provides no functionality but is required
// for providing support for generating C code for RPi.
//Pins of header P1 which can be used as GPIO
supported_pins = [3,5,7,8,10,11,12,13,15,16,18,19,21,22,23,24,26]
PinIsGPIO = members(pin, supported_pins); //Check if input pin supports GPIO
//If given pin does not support GPIO functionality, raise the error
if(PinIsGPIO == 0)
error(9999, 'SCI2CERROR: Given pin number doesnot support GPIO functionality.');
end
EdgeTypeSupported = members(edgetype,[1 2 3])
if(EdgeTypeSupported == 0)
error(9999, 'SCI2CERROR: Given edgetype is incorrect. Please specify correct edgetype from [1,2,3]')
end
endfunction
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