int main(int argc, char **argv)
{
# if 0
wiringPiSetupSys();
s500_sys_gpio_type(1);
while(1)
{
digitalWrite(3, 1);
printf(".....pin 3.........HIGH\n");
delay (6000) ; // mS
digitalWrite(3, 0);
printf(".....pin 3.........LOW\n");
delay (6000) ; // mS
}
#else
wiringPiSetupSys();
while(1)
{
//注意: 以下的pin需要改为bcm 对应的pin
digitalWrite(3, 1);
printf(".....pin 3.........HIGH\n");
delay (6000) ; // mS
digitalWrite(3, 0);
printf(".....pin 3.........LOW\n");
delay (6000) ; // mS
}
#endif
}
int main(void)
{
int i;
/*
Set up wiring pi library
Using ...Sys assumes GPIOs have been exported previously and allows program
to run in userland.
Replace with ...Gpio to avoid need for exporting. This requires root privs to run.
*/
if (wiringPiSetupSys() == -1) {
return 1;
}
/* Set as output */
pinMode(OUTPUT0, OUTPUT);
for(i=0;i<5;i++) {
/* Set output high */
digitalWrite(OUTPUT0, HIGH);
delay(PERIOD);
/* Set output low */
digitalWrite(OUTPUT0, LOW);
delay(PERIOD);
}
/* Clean up - set as input */
pinMode(OUTPUT0, INPUT);
return 0;
}
void setup (void)
{
int i ;
wiringPiSetupSys () ;
if (piFaceSetup (200) == -1)
exit (1) ;
// Enable internal pull-ups
for (i = 0 ; i < 8 ; ++i)
pullUpDnControl (PIFACE + i, PUD_UP) ;
// Calculate the actual charging voltage - standard calculation of
// vCharge = r2 / (r1 + r2) * vBatt
//
//
// -----+--- vBatt
// |
// R1
// |
// +---+---- vCharge
// | |
// R2 C
// | |
// -----+---+-----
vCharge = rDischarge / (rCharge + rDischarge) * vBatt ;
// Start with no charge
vCap = vCapLast = 0.0 ;
}
int main (void)
{
uint8_t spiData [10] ;
// set interface speed
if (wiringPiSPISetup (0,100000) < 0)
{
fprintf (stderr, "Unable to open SPI device 0: %s\n", strerror (errno)) ;
exit (1) ;
}
wiringPiSetupSys() ;
wiringPiSetup() ;
/* setup output ports */
pinMode(8, OUTPUT); /* reset */
pinMode(9, OUTPUT); /* rs */
/* reset LCD display */
digitalWrite(8,0);
delayMicroseconds (100) ;
digitalWrite(8,1);
void write_cmd(int c)
{
digitalWrite(9,0); // set rs bit for cmd
spiData[0]=c;
wiringPiSPIDataRW (0, spiData, 1) ;
}
int main(int argc, char **argv)
{
ros::init(argc, argv, "laserStepperController");
ros::NodeHandle nodeHandle;
wiringPiSetupSys();
system("gpio export 19 output");
//pinMode(laserStepperDirectionPin, OUTPUT);
system("gpio export 21 output");
//pinMode(laserStepperStepPin, OUTPUT);
// Set the laser stepper direction
digitalWrite(laserStepperStepPin, HIGH);
ros::Rate(1.0);
while(nodeHandle.ok())
{
// keep moving the laser stepper
digitalWrite(laserStepperStepPin, HIGH);
usleep(1);
digitalWrite(laserStepperStepPin, LOW);
usleep(1);
ros::spinOnce();
} // end while
} // end main
int f_sysinit(int itype,int use_exit)
{
int ret=1;
int code=-1;
printf ( "<enter>f_sysinit(%d,%d)\n",itype,use_exit) ;
switch(itype){
case 1:
code=wiringPiSetup () ;
break;
case 2:
// We need wiringPi setup in some way to make sure that
// delay() works, but we don't need to be root to
// use the I2C, so ...
code=wiringPiSetupSys ();
break;
case 3:
code=0;
break;
default:
break;
}
if(code<0){
ret=0;
fprintf (stderr, "<f_sysinit>wiringPiSetupSys setup failed\n") ;
printf ( "wiringPiSetup setup failed with code %d \n",code) ;
if(use_exit==1)
{
exit(1);
}
}
printf ( "<exit>f_sysinit\n") ;
return ret;
}
/**
* \brief Setup resources for SPI transactions
*
* Called Once to setup buffers, locks, and GPIO
* \returns
* If Setup has been called recently, 1 is returned as a warning. \n
* If GPIO can't be loaded, the entire system is stopped with EXIT_FAILURE. \n
* Otherwise, 0 is returned.
*/
int spiSetup(void) {
// Setup resources for SPI transactions
FILE *FPTR;
FPTR = popen("gpio load spi", "r");
fclose(FPTR);
// FIXME: use SLAVE_INT_PIN here
FPTR = popen("gpio export 2 in", "r");
fclose(FPTR);
//syslog(LOG_DEBUG, "Using pin %i", SLAVE_INT_PIN);
if (wiringPiSetupSys() == -1) {
syslog(LOG_ERR, "Couldn't setup wiringPi system!");
exit(EXIT_FAILURE);
}
if (wiringPiISR(SLAVE_INT_PIN, INT_EDGE_FALLING, &sgSerialSlaveSending) < 0) {
syslog(LOG_ERR, "Couldn't setup interrupt on pin!");
exit(EXIT_FAILURE);
}
pthread_mutex_init(&transfer_lock, NULL);
if (tx_buffer == NULL) {
tx_buffer = queueInit(100);
} else {
syslog(LOG_WARNING, "spiSetup has already been called!");
return 1;
}
return 0;
}
int main(int argc, char *argv[]) {
/*
output PIN is hardcoded for testing purposes
see https://projects.drogon.net/raspberry-pi/wiringpi/pins/
for pin mapping of the raspberry pi GPIO connector
*/
int PIN = 17;
int outlet = atoi(argv[1]);
int command = atoi(argv[2]);
if (wiringPiSetupSys () == -1) return 1;
RCSwitch mySwitch = RCSwitch();
mySwitch.enableTransmit(PIN);
switch(command) {
case 1:
mySwitch.switchOn(outlet, 4);
break;
case 0:
mySwitch.switchOff(outlet, 4);
break;
default:
printf("command[%i] is unsupported\n", command);
return -1;
}
return 0;
}
int main(void)
{
int cnt = 0;
unsigned level = LOW;
wiringPiSetupSys();
pcf8574Setup(BASE_8574, ADDR_I2C_8574);
for (cnt = 0; cnt < NUM_IO_8574; cnt++)
{
pinMode(BASE_8574 + cnt, OUTPUT);
}
for(;;)
{
level = LOW;
for (cnt = 0; cnt < NUM_IO_8574; cnt++)
{
digitalWrite(BASE_8574 + cnt, level);
if ((cnt + 1) % NUM_IO_8574 / 2 == 0)
{
level = (level == LOW) ? HIGH : LOW;
}
}
delay(500);
}
return EXIT_SUCCESS;
}
static foreign_t
pl_wiringPiSetupSys(){
if(wiringPiSetupSys() != 0){
printf("\nwiringPiSetup failed\n");
PL_fail;
}
PL_succeed;
}
/*
* Setup
*/
void setup(void) {
// initialise the hardware
// initialize variables
// Initialize the communications from the thermistor task
wiringPiSetupSys(); // Setup wiringPi
piThreadCreate(readTemperature); // Start Thermistor reading task
}
//--------------------------------------------------------------
void ofApp::setup(){
ofSetLogLevel(OF_LOG_VERBOSE);
ofSetVerticalSync(true);
// BCM
//
int pinMax = 4;
int pinMap[4] = {18,27,22,23};
#ifdef TARGET_OPENGLES
consoleListener.setup(this);
if(wiringPiSetupSys() == -1){
printf("Error on wiringPi setup\n");
return;
}
#endif
//this will let us just grab a video without recompiling
ofDirectory currentVideoDirectory("videos");
if (currentVideoDirectory.exists()) {
currentVideoDirectory.listDir();
vector<ofFile> files = currentVideoDirectory.getFiles();
for (int i=0; i<files.size(); i++) {
if(i>=pinMax)
break;
Channel newChannel;
newChannel.pin = pinMap[i];
#ifdef TARGET_OPENGLES
// Pins
pinMode(newChannel.pin, INPUT);
// Video Player
ofxOMXPlayerSettings settings;
settings.videoPath = files[i].path();
settings.useHDMIForAudio = true; //default true
settings.enableTexture = true; //default true
settings.enableLooping = false; //default true
settings.enableAudio = false; //default true, save resources by disabling
ofxOMXPlayer* player = new ofxOMXPlayer();
player->setup(settings);
#else
ofVideoPlayer *player = new ofVideoPlayer();
player->loadMovie(files[i].path());
#endif
newChannel.video = player;
newChannel.state = false;
channels.push_back(newChannel);
}
}
nActive = -1;
}
int main(void){
int setup = 0;
printf("Start!!\n");
setup = wiringPiSetupSys();
wiringPiISR( READ_PIN, INT_EDGE_RISING, signal);
while(setup != -1){
sleep(10000);
}
return 0;
}
/* wiringPiSetupSys
*
* Parameters: None
* Return Type: int
*/
mrb_value
mrb_Pi_wiringPiSetupSys(mrb_state* mrb, mrb_value self) {
/* Invocation */
int result = wiringPiSetupSys();
/* Box the return value */
mrb_value return_value = mrb_fixnum_value(result);
return return_value;
}
int main (int argc, char *argv [])
{
int bpm, msPerBeat, state = 0 ;
unsigned int end ;
printf ("Raspberry Pi PiFace Metronome\n") ;
printf ("=============================\n") ;
piHiPri (50) ;
wiringPiSetupSys () ; // Needed for timing functions
piFaceSetup (PIFACE) ;
if (argc != 2)
{
printf ("Usage: %s <beates per minute>\n", argv [0]) ;
exit (1) ;
}
if (strcmp (argv [1], "a") == 0)
middleA () ;
bpm = atoi (argv [1]) ;
if ((bpm < 40) || (bpm > 208))
{
printf ("%s range is 40 through 208 beats per minute\n", argv [0]) ;
exit (1) ;
}
msPerBeat = 60000 / bpm ;
// Main loop:
// Put some random LED pairs up for a few seconds, then blank ...
for (;;)
{
end = millis () + msPerBeat ;
digitalWrite (PIFACE + 0, state) ;
digitalWrite (PIFACE + 1, state) ;
while (millis () < end)
delayMicroseconds (500) ;
state ^= 1 ;
}
return 0 ;
}
void jshInit() {
#ifdef USE_WIRINGPI
if (geteuid() == 0) {
printf("RUNNING AS SUDO - awesome. You'll get proper IRQ support\n");
wiringPiSetup();
} else {
printf("NOT RUNNING AS SUDO - sorry, you'll get rubbish realtime IO. You also need to export the pins you want to use first.\n");
wiringPiSetupSys() ;
}
#endif
int i;
for (i=0;i<=EV_DEVICE_MAX;i++)
ioDevices[i] = 0;
jshInitDevices();
#ifndef __MINGW32__
if (!terminal_set) {
struct termios new_termios;
/* take two copies - one for now, one for later */
tcgetattr(0, &orig_termios);
memcpy(&new_termios, &orig_termios, sizeof(new_termios));
/* register cleanup handler, and set the new terminal mode */
atexit(reset_terminal_mode);
cfmakeraw(&new_termios);
tcsetattr(0, TCSANOW, &new_termios);
terminal_set = 1;
}
#endif//!__MINGW32__
for (i=0;i<JSH_PIN_COUNT;i++) {
gpioState[i] = JSHPINSTATE_UNDEFINED;
gpioEventFlags[i] = 0;
}
#ifdef SYSFS_GPIO_DIR
for (i=0;i<JSH_PIN_COUNT;i++) {
gpioShouldWatch[i] = false;
}
#endif
isInitialised = true;
int err = pthread_create(&inputThread, NULL, &jshInputThread, NULL);
if (err != 0)
printf("Unable to create input thread, %s", strerror(err));
}
void setup (void)
{
// Use the gpio program to initialise the hardware
// (This is the crude, but effective)
system ("gpio edge 17 falling") ;
// Setup wiringPi
wiringPiSetupSys () ;
// Fire off our interrupt handler
piThreadCreate (waitForIt) ;
}
int lcd_init(){
wiringPiSetupSys () ;
mcp23017Setup (AF_BASE, 0x20) ;
adafruitLCDSetup (105) ; //setze Farbe
lcdPosition (lcdHandle, 0, 0) ; lcdPuts (lcdHandle, "Warmwasserproben") ;
lcdPosition (lcdHandle, 0, 1) ; lcdPuts (lcdHandle, " Daten Aufnahme ");
sleep (2);
lcdPosition (lcdHandle, 0, 0) ; lcdPuts (lcdHandle, "Start ---> ") ;
lcdPosition (lcdHandle, 0, 1) ; lcdPuts (lcdHandle, "Press Select... ");
waitForEnter () ;
lcdClear (lcdHandle) ;
adafruitLCDSetup (103) ; //setze Farbe
return(0);
}
int main (void)
{
int i, j ;
wiringPiSetupSys () ;
sn3218Setup (LED_BASE) ;
for (;;)
{
for (i = 0 ; i < 256 ; ++i)
for (j = 0 ; j < 18 ; ++j)
analogWrite (LED_BASE + j, i) ;
for (i = 255 ; i >= 0 ; --i)
for (j = 0 ; j < 18 ; ++j)
analogWrite (LED_BASE + j, i) ;
}
}
int main (void)
{
int pin ;
int dataPtr ;
int l, s, d ;
printf ("Raspberry Pi - 6-LED Sequence\n") ;
printf ("=============================\n") ;
printf ("\n") ;
printf (" Use the 2 buttons to temporarily speed up the sequence\n") ;
wiringPiSetupSys () ; // Not using the Pi's GPIO here
drcSetupSerial (GERT_BASE, 20, "/dev/ttyAMA0", 115200) ;
for (pin = 0 ; pin < 6 ; ++pin)
pinMode (pinMap [pin], OUTPUT) ;
pinMode (GERT_BASE + 16, INPUT) ; // Buttons
pinMode (GERT_BASE + 17, INPUT) ;
pullUpDnControl (GERT_BASE + 16, PUD_UP) ;
pullUpDnControl (GERT_BASE + 17, PUD_UP) ;
dataPtr = 0 ;
for (;;)
{
l = data [dataPtr++] ; // LED
s = data [dataPtr++] ; // State
d = data [dataPtr++] ; // Duration (10ths)
if (s == 9) // 9 -> End Marker
{
dataPtr = 0 ;
continue ;
}
digitalWrite (pinMap [l], s) ;
delay (d * digitalRead (GERT_BASE + 16) * 15 + digitalRead (GERT_BASE + 17) * 20) ;
}
return 0 ;
}
int main ()
{
int x1, x2 ;
double v1, v2 ;
printf ("\n") ;
printf ("Gertboard demo: Simple Voltmeters\n") ;
printf ("=================================\n") ;
// Always initialise wiringPi. Use wiringPiSys() if you don't need
// (or want) to run as root
wiringPiSetupSys () ;
// Initialise the Gertboard analog hardware at pin 100
gertboardAnalogSetup (100) ;
printf ("\n") ;
printf ("| Channel 0 | Channel 1 |\n") ;
for (;;)
{
// Read the 2 channels:
x1 = analogRead (100) ;
x2 = analogRead (101) ;
// Convert to a voltage:
v1 = (double)x1 / 1023.0 * 3.3 ;
v2 = (double)x2 / 1023.0 * 3.3 ;
// Print
printf ("| %6.3f | %6.3f |\r", v1, v2) ;
fflush (stdout) ;
}
return 0 ;
}
void setup (void)
{
// Use the gpio program to initialise the hardware
// (This is the crude, but effective bit)
system ("gpio edge 24 falling") ;
system ("gpio edge 10 falling") ;
system ("gpio export 17 out") ;
system ("gpio export 18 out") ;
// Setup wiringPi
wiringPiSetupSys () ;
// Fire off our interrupt handler
piThreadCreate (waitForLeftEncoder) ;
piThreadCreate (waitForRightEncoder) ;
}
void setup (void)
{
// Use the gpio program to initialise the hardware
// (This is the crude, but effective bit)
system ("gpio edge 0 falling") ;
system ("gpio export 17 out") ;
system ("gpio export 18 out") ;
// Setup wiringPi
wiringPiSetupSys () ;
// Fire off our interrupt handler
piThreadCreate (waitForIt) ;
digitalWrite (17, 0) ;
}
int main (void)
{
int pin, button ;
printf ("Banana Pro wiringPi + LNDigital test program\n") ;
printf ("===========================================\n") ;
printf ("\n") ;
printf (
"This program reads the buttons and uses them to toggle the first 4\n"
"outputs. Push a button once to turn an output on, and push it again to\n"
"turn it off again.\n\n") ;
// Always initialise wiringPi. Use wiringPiSys() if you don't need
// (or want) to run as root
wiringPiSetupSys () ;
piFaceSetup (LN_DIGITAL_BASE) ;
// Enable internal pull-ups & start with all off
for (pin = 0 ; pin < 8 ; ++pin)
{
pullUpDnControl (LN_DIGITAL_BASE + pin, PUD_UP) ;
digitalWrite (LN_DIGITAL_BASE + pin, 0) ;
}
// Loop, scanning the buttons
for (;;)
{
for (button = 0 ; button < 4 ; ++button)
scanButton (button) ;
delay (5) ;
}
return 0 ;
}
int main(int argc, char **argv)
{
ros::init(argc, argv, "leftStepperController");
ros::NodeHandle nodeHandle;
ros::Subscriber cmd_velSubscriber = nodeHandle.subscribe("cmd_vel", 10, cmd_velCallback);
wiringPiSetupSys();
system("gpio export 7 output");
//pinMode(rightStepperDirectionPin, OUTPUT);
system("gpio export 11 output");
//pinMode(rightStepperStepPin, OUTPUT);
ros::Rate r(1.0);
while(nodeHandle.ok())
ros::spinOnce();
r.sleep();
} // end main
/*
* Class: com_pi4j_wiringpi_Gpio
* Method: wiringPiSetupSys
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_com_pi4j_wiringpi_Gpio_wiringPiSetupSys
(JNIEnv *env, jclass obj)
{
wiringpi_init_mode = WPI_MODE_GPIO_SYS;
return wiringPiSetupSys();
}
bool CGpio::StartHardware()
{
#ifndef WIN32
// TODO make sure the WIRINGPI_CODES environment variable is set, otherwise WiringPi makes the program exit upon error
// Note : We're using the wiringPiSetupSys variant as it does not require root privilege
if (wiringPiSetupSys() != 0) {
_log.Log(LOG_ERROR, "GPIO: Error initializing wiringPi !");
return false;
}
#endif
m_stoprequested=false;
//Start worker thread that will be responsible for interrupt handling
m_thread = boost::shared_ptr<boost::thread>(new boost::thread(boost::bind(&CGpio::Do_Work, this)));
m_bIsStarted=true;
#ifndef WIN32
//Hook up interrupt call-backs for each input GPIO
for(std::vector<CGpioPin>::iterator it = pins.begin(); it != pins.end(); ++it) {
if (it->GetIsExported() && it->GetIsInput()) {
_log.Log(LOG_NORM, "GPIO: Hooking interrupt handler for GPIO %d.", it->GetId());
switch (it->GetId()) {
case 0: wiringPiISR(0, INT_EDGE_SETUP, &interruptHandler0); break;
case 1: wiringPiISR(1, INT_EDGE_SETUP, &interruptHandler1); break;
case 2: wiringPiISR(2, INT_EDGE_SETUP, &interruptHandler2); break;
case 3: wiringPiISR(3, INT_EDGE_SETUP, &interruptHandler3); break;
case 4: wiringPiISR(4, INT_EDGE_SETUP, &interruptHandler4); break;
case 7: wiringPiISR(7, INT_EDGE_SETUP, &interruptHandler7); break;
case 8: wiringPiISR(8, INT_EDGE_SETUP, &interruptHandler8); break;
case 9: wiringPiISR(9, INT_EDGE_SETUP, &interruptHandler9); break;
case 10: wiringPiISR(10, INT_EDGE_SETUP, &interruptHandler10); break;
case 11: wiringPiISR(11, INT_EDGE_SETUP, &interruptHandler11); break;
case 14: wiringPiISR(14, INT_EDGE_SETUP, &interruptHandler14); break;
case 15: wiringPiISR(15, INT_EDGE_SETUP, &interruptHandler15); break;
case 17: wiringPiISR(17, INT_EDGE_SETUP, &interruptHandler17); break;
case 18: wiringPiISR(18, INT_EDGE_SETUP, &interruptHandler18); break;
case 20: wiringPiISR(20, INT_EDGE_SETUP, &interruptHandler20); break;
case 21: wiringPiISR(21, INT_EDGE_SETUP, &interruptHandler21); break;
case 22: wiringPiISR(22, INT_EDGE_SETUP, &interruptHandler22); break;
case 23: wiringPiISR(23, INT_EDGE_SETUP, &interruptHandler23); break;
case 24: wiringPiISR(24, INT_EDGE_SETUP, &interruptHandler24); break;
case 25: wiringPiISR(25, INT_EDGE_SETUP, &interruptHandler25); break;
case 27: wiringPiISR(27, INT_EDGE_SETUP, &interruptHandler27); break;
case 28: wiringPiISR(28, INT_EDGE_SETUP, &interruptHandler28); break;
case 29: wiringPiISR(29, INT_EDGE_SETUP, &interruptHandler29); break;
case 30: wiringPiISR(30, INT_EDGE_SETUP, &interruptHandler30); break;
case 31: wiringPiISR(31, INT_EDGE_SETUP, &interruptHandler31); break;
default:
_log.Log(LOG_ERROR, "GPIO: Error hooking interrupt handler for unknown GPIO %d.", it->GetId());
}
}
}
_log.Log(LOG_NORM, "GPIO: WiringPi is now initialized");
#endif
sOnConnected(this);
return (m_thread!=NULL);
}
void setup(void)
{
wiringPiSetupSys();
piThreadCreate(waitForPin1);
}
int main (void)
{
int i ;
int step, ring, leg ;
// Always initialise wiringPi:
// Use the Sys method if you don't need to run as root
wiringPiSetupSys () ;
// Initialise the piGlow devLib with our chosen pin base
piGlowSetup (1) ;
// LEDs, one at a time
printf ("LEDs, one at a time\n") ;
for (; !keypressed () ;)
for (leg = 0 ; leg < 3 ; ++leg)
{
for (ring = 0 ; ring < 6 ; ++ring)
{
pulseLed (leg, ring) ;
if (keypressed ())
break ;
}
if (keypressed ())
break ;
}
clearKeypressed () ;
// Rings, one at a time
printf ("Rings, one at a time\n") ;
for (; !keypressed () ;)
for (ring = 0 ; ring < 6 ; ++ring)
{
pulseRing (ring) ;
if (keypressed ())
break ;
}
clearKeypressed () ;
// Legs, one at a time
printf ("Legs, one at a time\n") ;
for (; !keypressed () ;)
for (leg = 0 ; leg < 3 ; ++leg)
{
pulseLeg (leg) ;
if (keypressed ())
break ;
}
clearKeypressed () ;
delay (1000) ;
// Sequence - alternating rings, legs and random
printf ("Sequence now\n") ;
for (; !keypressed () ;)
{
for (i = 0 ; i < 20 ; ++i)
for (step = 0 ; step < LEG_STEPS ; ++step)
{
for (leg = 0 ; leg < 3 ; ++leg)
piGlowLeg (leg, legSequence [step * 3 + leg]) ;
delay (80) ;
}
for (i = 0 ; i < 10 ; ++i)
for (step = 0 ; step < RING_STEPS ; ++step)
{
for (ring = 0 ; ring < 6 ; ++ring)
piGlowRing (ring, ringSequence [step * 6 + ring]) ;
delay (80) ;
}
for (i = 0 ; i < 1000 ; ++i)
{
leg = random () % 3 ;
ring = random () % 6 ;
piGlow1 (leg, ring, random () % 256) ;
delay (5) ;
piGlow1 (leg, ring, 0) ;
}
}
return 0 ;
}
int main (void)
{
printf ("Raspberry Pi wiringPi GPIO speed test program\n") ;
printf ("=============================================\n") ;
// Start the standard way
printf ("\nNative wiringPi method: (%8d iterations)\n", FAST_COUNT) ;
wiringPiSetup () ;
pinMode (7, OUTPUT) ;
speedTest (7, FAST_COUNT) ;
// GPIO
printf ("\nNative GPIO method: (%8d iterations)\n", FAST_COUNT) ;
wiringPiSetupGpio () ;
pinMode (7, OUTPUT) ;
speedTest (7, FAST_COUNT) ;
// Phys
printf ("\nPhysical pin GPIO method: (%8d iterations)\n", FAST_COUNT) ;
wiringPiSetupPhys () ;
pinMode (7, OUTPUT) ;
speedTest (7, FAST_COUNT) ;
// Switch to SYS mode:
system ("/usr/bin/gpio export 7 out") ;
printf ("\n/sys/class/gpio method: (%8d iterations)\n", SLOW_COUNT) ;
wiringPiSetupSys () ;
speedTest (7, SLOW_COUNT) ;
return 0 ;
}