First Commit

1 files changed, 43 insertions, 0 deletions

diff --git a/rs422lib/main.c b/rs422lib/main.c
new file mode 100644
index 0000000..8f6ec49
--- /dev/null
+++ b/rs422lib/main.c
@@ -0,0 +1,43 @@
+
+#include"precomp.h"
+#include"rsbus.h"
+#include"sysctl.h"
+
+void port_init(void)
+{
+    P1DIR |= BIT0+BIT6;      // P1.0 P1.6 output
+    P1OUT = 0;
+}
+
+void received(unsigned char* str,int len)
+{
+	rsbus_w(0,str,len);
+}
+
+void init_devices(void)
+{
+	WDTCTL = WDTPW + WDTHOLD;                 // Stop watchdog timer
+
+	if (CALBC1_8MHZ ==0xFF || CALDCO_8MHZ == 0xFF)
+		while(1)_BIS_SR(CPUOFF);            	// If calibration constants erased, trap CPU!!
+
+	BCSCTL1 = CALBC1_16MHZ; 		    // Set range
+	DCOCTL = CALDCO_16MHZ;  		    // Set DCO step + modulation£¬DCO=8MHz
+	BCSCTL3 |= LFXT1S_2;                      // LFXT1 = VLO
+	IFG1 &= ~OFIFG;                           // Clear OSCFault flag
+	BCSCTL2 |= DIVS_2;      //  SMCLK = DCO/4 = 4MHz
+
+	sysctl_init();
+	port_init();
+	rsbus_init(&received);
+
+	_BIS_SR(GIE);
+}
+
+void main(void)
+{
+	init_devices();
+	while(1)
+		sysroutine();
+}
+