first commit

wiringOP/examples/blink.c

@@ -0,0 +1,77 @@
+#include <stdio.h>
+#include <wiringPi.h>
+
+unsigned char getGpioNum(void)
+{
+	int model = -1;
+
+	piBoardId (&model);
+
+	switch (model)
+	{
+		case PI_MODEL_5B:
+			return 16;
+			break;
+		case PI_MODEL_3:
+		case PI_MODEL_LTIE_2:
+		case PI_MODEL_ZERO:
+		case PI_MODEL_ZERO_PLUS_2:
+		case PI_MODEL_ZERO_PLUS:
+		case PI_MODEL_4_LTS:
+		case PI_MODEL_800:
+		case PI_MODEL_5:
+			return 17;
+			break;
+		case PI_MODEL_ZERO_2:
+			return 21;
+			break;
+		case PI_MODEL_WIN:
+		case PI_MODEL_PRIME:
+		case PI_MODEL_PC_2:
+		case PI_MODEL_H3:
+		case PI_MODEL_RK3399:
+		case PI_MODEL_4:
+		case PI_MODEL_5_PLUS:
+		case PI_MODEL_900:
+		case PI_MODEL_CM4:
+		case PI_MODEL_3B:
+		case PI_MODEL_ZERO_2_W:
+			return 28;
+			break;
+		case PI_MODEL_R1_PLUS:
+			return 8;
+			break;
+		default:
+			printf ("Oops - unable to determine board type... model: %d\n", model);
+			return -1;
+			break;
+	}
+}
+
+int main (void)
+{
+	int i = 0;
+	unsigned char gpio_num = 0;
+
+	wiringPiSetup();
+
+	gpio_num = getGpioNum();
+	if (-1 == gpio_num)
+		printf("Failed to get the number of GPIO!\n");
+
+	for (i = 0; i < gpio_num; i++)
+		pinMode (i, OUTPUT) ;
+
+	for ( ;; )
+	{
+		for (i = 0; i < gpio_num; i++)
+			digitalWrite (i, HIGH);	// On
+		delay (2000);
+
+		for (i = 0; i < gpio_num; i++)
+			digitalWrite (i, LOW);	// Off
+		delay (2000);
+	}
+
+	return 0;
+}