Revision 0:60b70ac7ed38, committed 2015-03-05
- Comitter:
- scohennm
- Date:
- Thu Mar 05 03:33:01 2015 +0000
- Commit message:
- Use ISR instead of checking char buffer
Changed in this revision
diff -r 000000000000 -r 60b70ac7ed38 SLCD.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SLCD.lib Thu Mar 05 03:33:01 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/SLCD/#ef2b3b7f1b01
diff -r 000000000000 -r 60b70ac7ed38 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Mar 05 03:33:01 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9ad691361fac \ No newline at end of file
diff -r 000000000000 -r 60b70ac7ed38 serialO_v2.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/serialO_v2.cpp Thu Mar 05 03:33:01 2015 +0000
@@ -0,0 +1,50 @@
+#include "mbed.h"
+#include "SLCD.h"
+
+#define LCDLEN 10
+#define MAXCHAR 4
+#define LEDBLINKTIME 0.2f
+
+
+DigitalOut rLed(LED_RED);
+
+
+Serial pc(USBTX, USBRX); // tx, rx
+SLCD slcd; //define LCD display
+char rxChar;
+int charIndex = 0;
+char rxString[LCDLEN];
+bool charReady = false;
+
+// set up intterupt for serial port
+
+void serialISR(){
+ rxChar = pc.getc(); // reading clears the buffer
+ pc.printf("%c\n\r", rxChar);
+ rxString[charIndex] = rxChar;
+ charIndex = (charIndex + 1 )% MAXCHAR;
+ charReady = true;
+ return;
+}
+
+void LCDMessNoDwell(char *lMess){
+ slcd.Home();
+ slcd.clear();
+ slcd.printf(lMess);
+}
+
+
+int main()
+{
+ // set up interrupt
+ pc.attach(&serialISR);
+
+ while (true) {
+ rLed = !rLed; // toggle led
+ if (charReady) {
+ LCDMessNoDwell(rxString);
+ charReady = false;
+ }
+ wait(LEDBLINKTIME);
+ }
+}
\ No newline at end of file