/*
* stress.c:
*Â Â Â Â Â  WiringPi stress test
*
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
***********************************************************************
*/

#include <stdio.h>
#include <wiringPi.h>
#include <mcp23s17.h>
// #include <mcp23017.h>
// #include <sr595.h>

// The first pin number for each device

#define BASE_SPI 123
// #define BASE_I2C 456
// #define BASE_SR 789

int main (void)
{
  int i, bit ;

  wiringPiSetup () ;
 //mcp23017Setup (BASE_I2C, 0x20) ;
  mcp23s17Setup (BASE_SPI, 0, 0) ;
 //sr595Setup  (BASE_SR, 10, 0, BASE_SPI, BASE_I2C) ;

  printf ("Raspberry Pi - MCP23S17 Test\n") ;

// For the push button to stop it...

  pinMode  (BASE_SPI + 15, INPUT) ;
  pullUpDnControl (BASE_SPI + 15, PUD_UP) ;

  for (;;)
  {
  for (i = 0 ; i < 1024 ; ++i)
  {
  for (bit = 0 ; bit < 10 ; ++bit)
  digitalWrite (BASE_SPI + bit, i & (1 << bit)) ;
  delay (5) ;
  while (digitalRead (BASE_SPI + 15) == 0)
  delay (1) ;
  }
  }
  return 0 ;
}