Added semi-HW 1-wire realisation (alpha-version)

simple_cdc/hardware_ini.c

@@ -69,17 +69,26 @@ void SysTick_init(){
 void check_btns(){
 	static uint8_t oldstate[2] = {1,1}; // old buttons state
 	uint8_t newstate[2], i;
+	static uint32_t Old_timer[2] = {0,0};
 	newstate[0] = gpio_get(BTNS_PORT, BTN_S2_PIN) ? 1 : 0;
 	newstate[1] = gpio_get(BTNS_PORT, BTN_S3_PIN) ? 1 : 0;
 	for(i = 0; i < 2; i++){
 		uint8_t new = newstate[i];
-		if(new != oldstate[i]){
-			P("Button S");
-			usb_send('2' + i);
-			if(new) P("pressed");
-			else P("released");
-			newline();
-			oldstate[i] = new;
+		// pause for 60ms
+		uint32_t O = Old_timer[i];
+		if(!O){
+			if(Timer - O > 60 || O > Timer){
+				P("Button S");
+				usb_send('2' + i);
+				if(new) P("released");
+				else P("pressed");
+				newline();
+				oldstate[i] = new;
+				Old_timer[i] = 0;
+			}
+		}
+		else if(new != oldstate[i]){
+			Old_timer[i] = Timer;
 		}
 	}
 }