106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
// WiringPi test program: Kernel char device interface / sysfs successor
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// Compile: gcc -Wall wiringpi_test1_device.c -o wiringpi_test1_device -lwiringPi
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#include "wpi_test.h"
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#include <signal.h>
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#include <time.h>
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#include <sys/time.h>
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const int GPIO = 19;
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const int GPIOIN = 26;
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const int ToggleValue = 4;
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int RaspberryPiModel = -1;
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void SetAndCheckMode(int pin, int mode) {
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enum WPIPinAlt AltGpio = WPI_ALT_UNKNOWN;
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switch(mode) {
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case INPUT:
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pinMode(pin, INPUT);
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AltGpio = getPinModeAlt(pin);
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CheckSame("Pin mode input", AltGpio, WPI_ALT_INPUT);
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break;
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case OUTPUT:
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pinMode(pin, OUTPUT);
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AltGpio = getPinModeAlt(pin);
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CheckSame("Pin mode output", AltGpio, WPI_ALT_OUTPUT);
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break;
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case PM_OFF:
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pinMode(pin, PM_OFF);
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AltGpio = getPinModeAlt(pin);
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CheckSame("Pin mode off(input)", AltGpio, (PI_MODEL_5 == RaspberryPiModel) ? WPI_NONE : WPI_ALT_INPUT);
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break;
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default:
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pinMode(pin, mode);
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printf("pinmode %d of pin %d not checked", mode, pin);
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break;
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}
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}
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int main (void) {
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printf("WiringPi GPIO test program 1 (using GPIO%d (output) and GPIO%d (input))\n", GPIO, GPIOIN);
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printf(" testing digitalWrite, digitalRead and pullUpDnControl\n");
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if (wiringPiSetupGpio() == -1) {
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printf("wiringPiSetupGpio failed\n\n");
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exit(EXIT_FAILURE);
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}
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int rev, mem, maker, overVolted;
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piBoardId(&RaspberryPiModel, &rev, &mem, &maker, &overVolted);
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CheckNotSame("Model: ", RaspberryPiModel, -1);
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if (PI_MODEL_5 == RaspberryPiModel) {
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printf("Raspberry Pi 5 with RP1 found\n");
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} else {
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printf("Raspberry Pi with BCM GPIO found (not Pi 5)\n");
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}
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enum WPIPinAlt AltGpio = WPI_ALT_UNKNOWN;
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AltGpio = getPinModeAlt(23);
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CheckSame("Pin mode default", AltGpio, PI_MODEL_5 == RaspberryPiModel ? WPI_NONE : WPI_ALT_INPUT);
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SetAndCheckMode(GPIOIN, INPUT);
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SetAndCheckMode(GPIO, OUTPUT);
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printf("toggle %d times ...\n", ToggleValue);
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for (int loop=1; loop<ToggleValue; loop++) {
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digitalWriteEx(GPIO, GPIOIN, LOW);
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delayMicroseconds(600000);
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digitalWriteEx(GPIO, GPIOIN, HIGH);
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delayMicroseconds(600000);
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}
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digitalWrite(GPIO, LOW);
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printf("\nWiringPi GPIO test program (using GPIO%d (input pull up/down) and GPIO%d (input))\n", GPIO, GPIOIN);
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pullUpDnControl (GPIO, PUD_UP);
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SetAndCheckMode(GPIO, INPUT);
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delayMicroseconds(3000000);
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pullUpDnControl (GPIOIN, PUD_OFF);
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for (int loop=1; loop<ToggleValue; loop++) {
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pullUpDnControlEx (GPIO, GPIOIN, PUD_DOWN);
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delayMicroseconds(600000);
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pullUpDnControlEx (GPIO, GPIOIN, PUD_UP);
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delayMicroseconds(600000);
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}
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//Error wrong direction - only for fun
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digitalWrite(GPIO, LOW);
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SetAndCheckMode(GPIO, OUTPUT);
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SetAndCheckMode(GPIO, PM_OFF);
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//pinModeAlt (GPIO, 0x1F);
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//AltGpio = getPinModeAlt(GPIO);
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//CheckSame("Pin mode off(default)", AltGpio, 0x1F);
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return UnitTestState();
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}
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