From bc30ef0daacae07a643ac73856950c8a30954ee0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?King=20K=C3=A9vin?= <kingkevin@cuvoodoo.info>
Date: Fri, 25 Mar 2016 13:17:48 +0100
Subject: [PATCH] show RTC time on LEDs

---
 main.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/main.c b/main.c
index b744127..54385b3 100644
--- a/main.c
+++ b/main.c
@@ -265,20 +265,23 @@ int main(void)
 	printf("welcome to the CuVoodoo LED clock\n"); // print welcome message
 	led_on(); // switch on LED to indicate setup completed
 
-	uint32_t time = 0; // the time to display
-	uint32_t current_time = 6*ticks_hour+45*ticks_minute+15*ticks_second+ticks_second/4;
+
+	uint16_t* rtc_time = rtc_read_time(); // get current date
+	printf("current date: %04d-%02d-%02d %02d:%02d:%02d\n", rtc_time[6], rtc_time[5], rtc_time[4], rtc_time[2], rtc_time[1], rtc_time[0]);
+	uint32_t display_time = 0; // the time to display
+	uint32_t current_time = rtc_time[2]*ticks_hour+rtc_time[1]*ticks_minute+rtc_time[0]*ticks_second; // the current time
 	printf("setting current time\n");
-	while (time<current_time) {
-		if (time+ticks_hour<=current_time) { // first set hours
-			time += ticks_hour; // increment hours
-		} else if (time+ticks_minute<=current_time) { // second set minutes
-			time += ticks_minute; // increment minutes
-		} else if (time+ticks_minute<=current_time) { // third set seconds
-			time += ticks_second; // increment seconds
+	while (display_time<current_time) {
+		if (display_time+ticks_hour<=current_time) { // first set hours
+			display_time += ticks_hour; // increment hours
+		} else if (display_time+ticks_minute<=current_time) { // second set minutes
+			display_time += ticks_minute; // increment minutes
+		} else if (display_time+ticks_minute<=current_time) { // third set seconds
+			display_time += ticks_second; // increment seconds
 		} else { // finally set time
-			time = current_time;
+			display_time = current_time;
 		}
-		clock_show_time(time); // set time (progress)
+		clock_show_time(display_time); // set time (progress)
 		leds_set(); // set the colors of all LEDs
 		ws2812b_transmit(); // transmit set color
 		// delay some time
@@ -286,11 +289,8 @@ int main(void)
 			__asm__("nop");
 		}
 	}
-	printf("it is now %02lu:%02lu:%02lu\n", time/ticks_hour, (time%ticks_hour)/ticks_minute, (time%ticks_minute)/ticks_second);
-
+	printf("it is now %02lu:%02lu:%02lu\n", display_time/ticks_hour, (display_time%ticks_hour)/ticks_minute, (display_time%ticks_minute)/ticks_second);
 	// test RTC
-	uint16_t* rtc_time = rtc_read_time();
-	printf("RTC full time %04d-%02d-%02d %02d:%02d:%02d\n", rtc_time[6], rtc_time[5], rtc_time[4], rtc_time[2], rtc_time[1], rtc_time[0]);
 	printf("RTC oscillator: ");
 	if (rtc_oscillator_disabled()) {
 		printf("disbaled\n");
@@ -324,9 +324,9 @@ int main(void)
 			action = true; // action has been performed
 			printf("%c",c); // echo receive character
 
-			printf("%02lu:%02lu\n", time/ticks_hour, (time%ticks_hour)/ticks_minute);
-			clock_show_time(time); // set time
-			time += ticks_minute; // increment time
+			printf("%02lu:%02lu\n", display_time/ticks_hour, (display_time%ticks_hour)/ticks_minute);
+			clock_show_time(display_time); // set time
+			display_time += ticks_minute; // increment time
 			leds_set(); // set the colors of all LEDs
 			ws2812b_transmit(); // transmit set color
 		}