1 files changed, 67 insertions, 63 deletions
diff --git a/rs422lib/rsbus.h b/rs422lib/rsbus.h
index 2e29b9b..1297d72 100644
--- a/rs422lib/rsbus.h
+++ b/rs422lib/rsbus.h
@@ -1,63 +1,67 @@
-/*
- * rsbus.h
- *
- *  Created on: 2014-4-26
- *      Author: Tuowen
- */
-
-// DE RSOUT.RSPIN HIGH ENABLE
-// RE LOW ENABLE -> ALWAYS ENABLE
-// RECEIVE QUERY -> Conditional FNC call
-//		Process -> Output (Done in main program)
-// SMCLK set to 4MHZ
-
-
-#ifndef RSBUS_H_
-#define RSBUS_H_
-
-#include<msp430g2553.h>
-#include"precomp.h"
-
-// MAXIMUM length to be send
-#define RS_MAX   (14)
-
-#define ST_BUSY (0x04)
-#define ST_RUN (0x02)
-#define ST_RES (0x01)
-#define ST_REST (0x00)
-
-// Switch the machine to a new state specified above
-// This will shown on the network -> must call
-#define SWITCH_STATE(STATE) (mac_stat[0]=STATE)
-
-// Changing the state value (unsigned char) ->
-//		Available indices 0,1,2
-#define STATE(X) (mac_stat[X+1])
-
-// Start and Stop bits definition
-// 		Every message sent that does not agree with it will be ignored
-// 		Please avoid this pattern in STATE(X)
-#define STBIT0 (0x5B)
-#define STBIT1 (0xAD)
-#define EDBIT0 (0xA4)
-#define EDBIT1 (0x52)
-
-// Receieve handler ->
-//	Received message and it's length
-typedef void (*rshdlr)(unsigned char* msg,unsigned int len);
-
-// RSBUS init function
-// Setting up UART, DE pin, receieve handler
-void rsbus_init(rshdlr);
-
-// Send something to the rs422 bus
-// Length must not exceeds RS_MAX
-void rsbus_w(int,unsigned char*,unsigned int);
-
-// Machine status -> change it to change the auto respond status
-// 		0 is reserved for machine state specification
-// 		1-3 used for mac_type specific state
-// recommend using SWITCH_STATE & STATE
-extern volatile unsigned char mac_stat[4];
-
-#endif /* RSBUS_H_ */
+/*
+ * rsbus.h
+ *
+ *  Created on: 2014-4-26
+ *      Author: Tuowen
+ */
+
+// DE RSOUT.RSPIN HIGH ENABLE
+// RE LOW ENABLE -> ALWAYS ENABLE
+// RECEIVE QUERY -> Conditional FNC call
+//		Process -> Output (Done in main program)
+// SMCLK set to 4MHZ
+
+
+#ifndef RSBUS_H_
+#define RSBUS_H_
+
+#include<msp430g2553.h>
+#include"precomp.h"
+
+// MAXIMUM length to be send
+#define RS_MAX   (14)
+
+#define ST_BUSY (0x04)
+#define ST_RUN (0x02)
+#define ST_RES (0x01)
+#define ST_REST (0x00)
+
+// Switch the machine to a new state specified above
+// This will shown on the network -> must call
+#define SWITCH_STATE(STATE) (mac_stat[0]=STATE)
+#define MSTATE (mac_stat[0])
+
+// Changing the state value (unsigned char) ->
+//		Available indices 0,1,2
+#define STATE(X) (mac_stat[X+1])
+
+// Return current mac state
+#define RETSTATE (rsbus_w(0,(unsigned char*)mac_stat,4))
+
+// Start and Stop bits definition
+// 		Every message sent that does not agree with it will be ignored
+// 		Please avoid this pattern in STATE(X)
+#define STBIT0 (0x5B)
+#define STBIT1 (0xAD)
+#define EDBIT0 (0xA4)
+#define EDBIT1 (0x52)
+
+// Receieve handler ->
+//	Received message and it's length
+typedef void (*rshdlr)(unsigned char* msg,unsigned int len);
+
+// RSBUS init function
+// Setting up UART, DE pin, receieve handler
+void rsbus_init(rshdlr);
+
+// Send something to the rs422 bus
+// Length must not exceeds RS_MAX
+void rsbus_w(int,unsigned char*,unsigned int);
+
+// Machine status -> change it to change the auto respond status
+// 		0 is reserved for machine state specification
+// 		1-3 used for mac_type specific state
+// recommend using SWITCH_STATE & STATE
+extern volatile unsigned char mac_stat[4];
+
+#endif /* RSBUS_H_ */