Diff: IEC_bus.h

Revision:

0:28557a4d2215

Child:

1:0cbbb66a6100

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IEC_bus.h	Mon Aug 22 05:48:51 2011 +0000
@@ -0,0 +1,51 @@
+#ifndef IEC_BUS_INCLUDED
+#define IEC_BUS_INCLUDED      
+
+
+/*defines*/
+/*-------*/
+/*IEC commandset: the talker requests the addresses device to become a ...-er*/
+#define        LISTEN            0x20    /*base address, device 0-30*/
+#define        UNLISTEN        0x3F    /*base address, n/a*/                
+#define        TALK            0x40    /*base address, device 0-30*/        
+#define        UNTALK            0x5F    /*base address, n/a*/        
+#define        DATA            0x60    /*base address, secondary address 0-15 (this is in some documentation also refered to as OPEN_CHANNEL)*/
+#define        CLOSE            0xE0    /*base address, secondary address 0-15*/        
+#define        OPEN            0xF0    /*base address, secondary address 0-15*/        
+
+#define        TIMINGS_DEFAULT    10
+#define        TIMINGS_DTV        11
+#define        TIMINGS_VIC20    12
+extern int IEC_CLOCK();
+extern int IEC_DATA();
+extern int IEC_ATN();
+extern void IEC_ATN_REL();
+extern void IEC_ATN_PULL();
+extern void IEC_DATA_REL();
+extern void IEC_CLOCK_REL();
+extern void IEC_DATA_PULL();
+extern void IEC_CLOCK_PULL();
+
+/*routines*/
+/*--------*/
+void InitIEC(void);
+void SetIEC_timings(unsigned char settings);
+void FreeIEC(void);
+
+unsigned char IEC_receive(unsigned char frame_handshake);
+unsigned char IEC_send(unsigned char data);
+unsigned char IEC_monitor(void);
+void IEC_send_string(const unsigned char *inputstring);
+void IEC_send_number_as_ASCII(unsigned char number);
+void IEC_turnaround(void);
+void IEC_undoturnaround(void);
+void IEC_letgo(void);
+unsigned char CheckForCommand(unsigned char *outputcommand, unsigned char frame_handshake);
+
+#endif
+
+
+
+
+
+