// WiringPi test program: Kernel char device interface / sysfs successor // Compile: gcc -Wall wiringpi_test2_device.c -o wiringpi_test2_device -lwiringPi #include "wpi_test.h" #include #include #include int GPIO = 19; int GPIOIN = 26; const int ToggleValue = 4; int main (void) { printf("WiringPi GPIO test program 2 (using GPIO%d (output) and GPIO%d (input) via sys)\n", GPIO, GPIOIN); printf(" testing pullUpDnControl and pinMode PM_OFF\n"); if (wiringPiSetupSys() == -1) { printf("wiringPiSetupSys failed\n\n"); exit(EXIT_FAILURE); } if (!piBoard40Pin()) { GPIO = 23; GPIOIN = 24; } pinMode(GPIOIN, INPUT); pinMode(GPIO, OUTPUT); printf("\nTest output\n"); digitalWriteEx(GPIO, GPIOIN, HIGH); delayMicroseconds(600000); digitalWriteEx(GPIO, GPIOIN, LOW); delayMicroseconds(600000); printf("\nTest output off with pull up\n"); pinMode(GPIO, OUTPUT); digitalWriteEx(GPIO, GPIOIN, LOW); pullUpDnControl (GPIO, PUD_UP); pinMode(GPIO, PM_OFF); delayMicroseconds(600000); printf("out = off "); CheckGPIO(GPIO, GPIOIN, HIGH); delayMicroseconds(600000); printf("\nTest output off with pull down\n"); pullUpDnControl (GPIO, PUD_DOWN); pinMode(GPIO, PM_OFF); delayMicroseconds(600000); printf("out = off "); CheckGPIO(GPIO, GPIOIN, LOW); delayMicroseconds(600000); return UnitTestState(); }