From 75a61c57fb0402f777bfa828dd71818a97ed54a4 Mon Sep 17 00:00:00 2001
From: David Lamparter <equinox@diac24.net>
Date: Sun, 1 Apr 2012 00:20:25 +0200
Subject: original dcf77 C code

---
 max7219.h | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 max7219.h

(limited to 'max7219.h')

diff --git a/max7219.h b/max7219.h
new file mode 100644
index 0000000..cfbb846
--- /dev/null
+++ b/max7219.h
@@ -0,0 +1,51 @@
+/**************	Ansteuerung des 7-Segment-Treibers MAX7219 **************/
+
+#define BRIGHT	4		// 0 ... 15
+
+// Definitionen
+// 1. Display type
+#define	COMMON_CATHODE
+//#define	COMMON_ANODE	// not implemented
+
+// 2. Pin-Deklaration
+//sbit	DISCLK = 0x97;		//BIT P1.7
+//sbit	DISDAT = 0x95;		//BIT P1.5
+//sbit	DISSTB = 0x94;		//BIT P1.4
+
+// 3. Segment-Order
+#define	_A	0x01		//   - A - 
+#define _B	0x40		// |       |
+#define _C	0x02		// F       B
+#define _D	0x80		// |       |
+#define	_E	0x08		//   - G - 
+#define	_F	0x04		// |       |
+#define	_G	0x10		// E       C
+#define	_DP	0x20		// |       |
+				//   - D -   P
+#define DPBIT 	7
+
+// 4. Digit-Order
+#define DIGITS		8, 128, 4, 16, 1, 32, 2, 64
+
+#define CHAR_SPACE      16
+#define CHAR_MINUS      17
+#define CHAR_GRAD       18
+#define CHAR_C2		19
+#define CHAR_R		20
+#define CHAR_O		21
+#define CHAR_H		22
+#define CHAR_L		23
+#define CHAR__		24
+#define CHAR_S1		25	// upper "-"
+
+
+#define ATTRIB_DP	0x80	// decimal point attribute, must be ored
+#define ATTRIB_FLASH	0x40	// flash attribute, must be ored
+
+
+void display_init(void);
+void display_out(void);
+void display_clear(void);
+void display_off(void);
+
+extern u8 displaymem[];
-- 
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