X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?p=tinyboard.git;a=blobdiff_plain;f=projects%2Fstep-up%2Fwdt.c;fp=projects%2Fstep-up%2Fwdt.c;h=9cfa08eb09f136b0841304501986e7bc89498258;hp=0000000000000000000000000000000000000000;hb=0174f645d64fbb6e1280c2bb225273f429dff187;hpb=678dd60ed95c50064bf8266f71ecf1b026dc3877

diff --git a/projects/step-up/wdt.c b/projects/step-up/wdt.c
new file mode 100644
index 0000000..9cfa08e
--- /dev/null
+++ b/projects/step-up/wdt.c
@@ -0,0 +1,27 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/wdt.h>
+
+#include "lights.h"
+
+void init_wdt()
+{
+	wdt_enable(WDTO_60MS);
+	WDTCR |= _BV(WDIE);
+}
+
+void susp_wdt()
+{
+	wdt_disable();
+}
+
+ISR(WDT_vect) {
+	++jiffies;
+
+	if (jiffies & 0x000F) {
+		need_battery_adc = 1; // about every 1s
+	}
+
+	patterns_next_tick();
+	timer_check_buttons();
+}