Diff: main.cpp

Revision:

0:ef61dfc4f518

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed May 06 13:16:40 2015 +0000
@@ -0,0 +1,40 @@
+#include "mbed.h"
+/* Serial Dimmer  20150506 ImageWriter
+/ This program is test of LPC1114 serial communication.
+/ When you use Mac, it is as follows.
+/   1)Run the Terminal.app.
+/   2)ls /dev/tty.usb*
+/       When you use USB-Serial converter and RS232C level conveter,
+/           It is displayed with /dev/tty.usbserial-xxxxxxxxx.
+/       When you use LPC1114FN28 mbed board from USB cable,
+/           It is displayed with /dev/tty.usbmodemfdxxxx.
+/   3)Run the screen command.
+/       screen /dev/tty.usbXXXXXXXX.
+/   4)Press 'u' to turn LED1 brightness up,'d' to turn it down.
+*/   
+ 
+//Serial pc(USBTX, USBRX); // tx, rx
+Serial pc(dp16, dp15);             //LPC1114
+
+//PwmOut led(LED1);
+PwmOut led(dp1);                    //LPC1114's PWMout is dp1 and dp2.
+ 
+float brightness = 0.0;
+ 
+int main() {
+    pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down\n");
+ 
+    while(1) {
+        char c = pc.getc();
+        if((c == 'u') && (brightness < 0.5)) {
+            brightness += 0.01;
+            led = brightness;
+        }
+        if((c == 'd') && (brightness > 0.0)) {
+            brightness -= 0.01;
+            led = brightness;
+        } 
+        pc.printf("%c:%5.2f\r\n",c,brightness);
+ 
+    }
+}