initial upload

platform/osd-merkur/dev/batmon.c

@@ -0,0 +1,55 @@
+#include "contiki.h"
+#include "batmon.h"
+#include <util/delay.h>
+
+
+
+
+int8_t batmon_init()
+{
+	return 0;
+}	
+
+int8_t batmon_get_voltage(uint16_t* voltage)
+{
+	uint16_t volt = 0;
+	uint16_t resolution = 75;
+	uint16_t offset = 2550;
+	int8_t ctr = 0;
+	
+	BATMON = 0 | BV(BATMON_HR);
+	_delay_us(2);
+	
+	if(BATMON & BV(BATMON_OK))
+	{
+		// voltage above 2.550 V
+		resolution = 75;
+		offset = 2550;
+		for(ctr=15; ctr>=0; ctr--)
+		{
+			BATMON = (BATMON & 0xF0) | (ctr);
+			_delay_us(2);
+			if(BATMON & BV(BATMON_OK)) break;
+		}
+	}
+	else
+	{
+		// voltage below 2.550 V
+		resolution = 50;
+		offset = 1700;
+		
+		BATMON &= ~BV(BATMON_HR);
+		
+		for(ctr=15; ctr>=0; ctr--)
+		{
+			BATMON = (BATMON & 0xF0) | (ctr);
+			_delay_us(2);
+			if(BATMON & BV(BATMON_OK)) break;
+		}
+	}
+	
+	volt = resolution*ctr+offset;
+	*voltage=volt; 
+	
+	return 0;
+}

platform/osd-merkur/dev/batmon.h

@@ -0,0 +1,8 @@
+#ifndef BATMON_H_
+#define BATMON_H_
+
+int8_t batmon_init();
+int8_t batmon_get_voltage(uint16_t* voltage);
+
+
+#endif /* BATMON_H_ */