CVS: examples/timerA_uart main.c, 1.4, 1.5 makefile, 1.8, 1.9 swuart.s, 1.5, 1.6

Update of /cvsroot/mspgcc/examples/timerA_uart
In directory sc8-pr-cvs7.sourceforge.net:/tmp/cvs-serv6791/examples/timerA_uart

Modified Files:
	main.c makefile swuart.s 
Log Message:
- improve the example, using a custom interrupt handler

Index: main.c
===================================================================
RCS file: /cvsroot/mspgcc/examples/timerA_uart/main.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -w -d -r1.4 -r1.5
--- main.c	10 Oct 2003 03:13:52 -0000	1.4
+++ main.c	30 Oct 2006 19:36:41 -0000	1.5
@@ -19,14 +19,45 @@
    }
 }
 
+volatile int reading = 0;
+int pos = 0;
+char buf[40];
+
+wakeup interrupt(NOVECTOR) timer_uart_rx_interrupt(void) {
+    switch (rxdata) {
+        //process RETURN key, ingnore CR
+        case '\r':
+            break;
+        case '\n':
+            printf("\r\n");     //finish line
+            buf[pos++] = 0;     //to use printf...
+            reading = 0;        //exit read loop
+            break;
+        //backspace
+        case '\b':
+            if (pos > 0) {      //is there a char to delete?
+                pos--;          //remove it in buffer
+                putchar('\b');  //go back
+                putchar(' ');   //erase on screen
+                putchar('\b');  //go back
+            }
+            break;
+        //other characters
+        default:
+            //only store characters if buffer has space
+            if (pos < sizeof(buf)) {
+                putchar(rxdata);     //echo
+                buf[pos++] = rxdata; //store
+            }
+    }
+}
+
+
 /**
 Main function with init an an endless loop that is synced with the
 interrupts trough the lowpower mode.
 */
 int main(void) {
-    int reading = 0;
-    int pos = 0;
-    char buf[40];
     
     WDTCTL = WDTCTL_INIT;               //Init watchdog timer
 
@@ -63,34 +94,9 @@
         reading = 1;
         while (reading) {               //loop and read characters
             LPM0;                       //sync, wakeup by irq
-            switch (rxdata) {
-                //process RETURN key
-                case '\r':
-                //case '\n':
-                    printf("\r\n");     //finish line
-                    buf[pos++] = 0;     //to use printf...
+        }
                     printf(":%s\r\n", buf);
-                    reading = 0;        //exit read loop
                     pos = 0;            //reset buffer
-                    break;
-                //backspace
-                case '\b':
-                    if (pos > 0) {      //is there a char to delete?
-                        pos--;          //remove it in buffer
-                        putchar('\b');  //go back
-                        putchar(' ');   //erase on screen
-                        putchar('\b');  //go back
-                    }
-                    break;
-                //other characters
-                default:
-                    //only store characters if buffer has space
-                    if (pos < sizeof(buf)) {
-                        putchar(rxdata);     //echo
-                        buf[pos++] = rxdata; //store
-                    }
-            }
-        }
     }
 }
 

Index: makefile
===================================================================
RCS file: /cvsroot/mspgcc/examples/timerA_uart/makefile,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -w -d -r1.8 -r1.9
--- makefile	8 Jun 2004 07:05:29 -0000	1.8
+++ makefile	30 Oct 2006 19:36:41 -0000	1.9
@@ -16,8 +16,8 @@
 all: ${NAME}.elf ${NAME}.a43 ${NAME}.lst
 
 #confgigure the next line if you want to use the serial download
-download: download-jtag
-#download: download-bsl
+#~ download: download-jtag
+download: download-bsl
 
 #additional rules for files
 ${NAME}.elf: ${OBJECTS}

Index: swuart.s
===================================================================
RCS file: /cvsroot/mspgcc/examples/timerA_uart/swuart.s,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -w -d -r1.5 -r1.6
--- swuart.s	10 Oct 2003 03:13:52 -0000	1.5
+++ swuart.s	30 Oct 2006 19:36:41 -0000	1.6
@@ -29,12 +29,7 @@
         clr     rxbit                   ;reset state
         mov     #CCIE|CAP|CM_2|CCIS_1|SCS, &CCTL0   ;restore capture mode
         mov.b   rxshift, rxdata         ;copy received data
-        bic     #CPUOFF|OSCOFF|SCG0|SCG1, 0(r1) ;exit all lowpower modes
-        ;here you might do other things too, like setting a flag
-        ;that the wakeup comes from the Timer_A UART. however
-        ;it should not take longer than one bit time, otherwise
-        ;charcetrs will be lost.
-        reti
+        br      #timer_uart_rx_interrupt
 
 .Lrxstart:                              ;startbit, init
         clr     rxshift                 ;clear input buffer


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