1 files changed, 69 insertions, 0 deletions
diff --git a/inc/int/dcf77.h b/inc/int/dcf77.h
new file mode 100755
index 0000000..e47ca4e
--- /dev/null
+++ b/inc/int/dcf77.h
@@ -0,0 +1,69 @@
+#ifndef CLOCK_H
+#define CLOCK_H
+  /* this dcf77-module relies on a accuarate clock (crystal) for receiving
+   * the dcf-signal. therefor the clock is going to work as expected,
+   * even with no dcf77-signal available.
+   * receivement is automatically turned on, if the avr is connected to the
+   * signal via INT0. if there is no signal the clock will not be set (K.I.S.S.)
+   *
+   */
+  #include <avr/io.h>
+  #include <avr/interrupt.h>
+  #include <stdint.h>
+  #define INT0_CONTROL       MCUCR
+  // #define INT0_FALLING_EDGE  0x02
+  // #define INT0_RISING_EDGE   0x03
+  #define INT0_FALLING_EDGE  (1<<ISC01)
+  #define INT0_RISING_EDGE   (1<<ISC01 | 1<<ISC00)
+  #define INT0_EDGE_ANY      (1<<ISC00)
+  typedef struct
+  {
+    volatile unsigned char bit : 1;
+  } Bit;
+  typedef struct
+  {
+    uint16_t h ;  // hour
+    uint16_t m ;  // minute
+    uint16_t s ;  // second
+    uint16_t ms;  // milli second
+    uint8_t yy;  // year
+    uint8_t mm;  // month
+    uint8_t dd;  // day
+    uint8_t wd;  // weekday
+  } Time;
+  typedef enum
+  {
+    DCF_FIRST   = 0,  // start of a new minute (note: always 0)
+    DCF_WEATHER = 14, // proprietary :-(
+    DCF_ANTENNA = 15, // 0: normal, 1: replacement
+    DCF_DST     = 16, // daylight saving time: this hour new time...
+    DCF_MEZ     = 17, // 'summer-time'
+    DCF_MESZ    = 18, // 'winter-time'
+    DCF_DBLSEC  = 19, // one extra second gonna be inserted
+    DCF_START   = 20, // begin of time-info (note: always 1)
+    DCF_MIN     = 21, // 7 bit
+    DCF_MINP    = 28, // parity bit for minutes
+    DCF_HOUR    = 29, // 6 bit
+    DCF_HOURP   = 35, // parity bit for hours
+    DCF_DAY     = 36, // 6 bit
+    DCF_WEEKDAY = 42, // 3 bit
+    DCF_MONTH   = 45, // 5 bit
+    DCF_YEAR    = 50, // 8 bit
+    DCF_DATEP   = 58  // parity bit for date
+  } DCF;
+  volatile Bit dcf77[60];
+  volatile uint8_t dcf77_bit;
+  volatile Time t_current;
+  volatile uint16_t interval;
+  /// void getBits(volatile unsigned char* target, const DCF start, const char len, const DCF parity);
+  /// void set_dcf_value();
+  /// void interrupts_init();
+#endif

diff --git a/inc/int/dcf77.h b/inc/int/dcf77.h new file mode 100755 index 0000000..e47ca4e --- /dev/null +++ b/inc/int/dcf77.h
@@ -0,0 +1,69 @@
	1	#ifndef CLOCK_H
	2	#define CLOCK_H
	3	/* this dcf77-module relies on a accuarate clock (crystal) for receiving
	4	* the dcf-signal. therefor the clock is going to work as expected,
	5	* even with no dcf77-signal available.
	6	* receivement is automatically turned on, if the avr is connected to the
	7	* signal via INT0. if there is no signal the clock will not be set (K.I.S.S.)
	8	*
	9	*/
	10	#include <avr/io.h>
	11	#include <avr/interrupt.h>
	12
	13	#include <stdint.h>
	14
	15	#define INT0_CONTROL MCUCR
	16	// #define INT0_FALLING_EDGE 0x02
	17	// #define INT0_RISING_EDGE 0x03
	18	#define INT0_FALLING_EDGE (1<<ISC01)
	19	#define INT0_RISING_EDGE (1<<ISC01 \| 1<<ISC00)
	20	#define INT0_EDGE_ANY (1<<ISC00)
	21
	22	typedef struct
	23	{
	24	volatile unsigned char bit : 1;
	25	} Bit;
	26
	27	typedef struct
	28	{
	29	uint16_t h ; // hour
	30	uint16_t m ; // minute
	31	uint16_t s ; // second
	32	uint16_t ms; // milli second
	33	uint8_t yy; // year
	34	uint8_t mm; // month
	35	uint8_t dd; // day
	36	uint8_t wd; // weekday
	37	} Time;
	38
	39	typedef enum
	40	{
	41	DCF_FIRST = 0, // start of a new minute (note: always 0)
	42	DCF_WEATHER = 14, // proprietary :-(
	43	DCF_ANTENNA = 15, // 0: normal, 1: replacement
	44	DCF_DST = 16, // daylight saving time: this hour new time...
	45	DCF_MEZ = 17, // 'summer-time'
	46	DCF_MESZ = 18, // 'winter-time'
	47	DCF_DBLSEC = 19, // one extra second gonna be inserted
	48	DCF_START = 20, // begin of time-info (note: always 1)
	49	DCF_MIN = 21, // 7 bit
	50	DCF_MINP = 28, // parity bit for minutes
	51	DCF_HOUR = 29, // 6 bit
	52	DCF_HOURP = 35, // parity bit for hours
	53	DCF_DAY = 36, // 6 bit
	54	DCF_WEEKDAY = 42, // 3 bit
	55	DCF_MONTH = 45, // 5 bit
	56	DCF_YEAR = 50, // 8 bit
	57	DCF_DATEP = 58 // parity bit for date
	58	} DCF;
	59
	60	volatile Bit dcf77[60];
	61	volatile uint8_t dcf77_bit;
	62	volatile Time t_current;
	63	volatile uint16_t interval;
	64
	65	/// void getBits(volatile unsigned char* target, const DCF start, const char len, const DCF parity);
	66	/// void set_dcf_value();
	67	/// void interrupts_init();
	68
	69	#endif