From 5603d5323930de347d0cb0f2f3439ab5f5c1defe Mon Sep 17 00:00:00 2001
From: LEdoianX <ledoian@Xenon>
Date: Thu, 14 Apr 2016 13:14:16 +0200
Subject: [PATCH] Wait for button press at beginning

Bonus: added a FIXME to non-working code
---
 main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/main.c b/main.c
index b298553..cf66351 100644
--- a/main.c
+++ b/main.c
@@ -33,10 +33,13 @@ void inline wait (int ticks) {	// This works in libopenocm3 examples
 int main (void) {
 	setup();
 
+	gpio_unset(GPIOC, GPIO8 | GPIO9);
+	while (gpio_get(GPIOA, GPIO0) == 0);
+
 	// Array of what leds should be on
 	uint16_t states[4] = {0, GPIO9, GPIO8, GPIO9 | GPIO8};
 	enum {FORWARD, BACKWARD} direction = FORWARD;
-	bool pressed = false;
+	bool pressed = true;
 	char state;
 
 	while (true) {
@@ -48,7 +51,7 @@ int main (void) {
 		}
 		state = (direction == FORWARD ? (state + 1)%4 : (/*state+4-1*/ state+3)%4 );
 
-		gpio_set(GPIOC, states[state]);
+		gpio_set(GPIOC, states[state]);		//FIXME: This doesn't work, as it does not write 0s to unmentioned pins!! 
 		wait(DELAY);
 	}
 	return 0;