Sean Stanko
/
PPM_Out
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Revision 0:ed169b9ebb06, committed 2014-10-18
- Comitter:
- ststanko
- Date:
- Sat Oct 18 03:57:42 2014 +0000
- Commit message:
- PPM output v1
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Oct 18 03:57:42 2014 +0000
@@ -0,0 +1,55 @@
+#include "mbed.h"
+#include "usb.h"
+
+//------------------------------------
+// Hyperterminal configuration
+// 9600 bauds, 8-bit data, no parity
+//------------------------------------
+
+
+#define PULSE_WIDTH 1000
+#define ONE_DELAY 10000
+#define ZERO_DELAY 40000
+
+DigitalOut myled(LED1);
+DigitalOut outpin(D15);
+void transmit_bit(char c) {
+ int i;
+ for (i = 0; i < 8; i++) {
+ myled = 1;
+ outpin = 1;
+ wait_us(PULSE_WIDTH);
+ myled = 0;
+ outpin = 0;
+ if (c & 0x1) {
+ wait_us(ONE_DELAY);
+ } else {
+ wait_us(ZERO_DELAY);
+ }
+ c >>= 1;
+ }
+}
+
+void transmit(char * data, unsigned int size) {
+ int i;
+ for (i = 0; i < size; i++) {
+ transmit_bit(data[i]);
+ }
+}
+
+int main() {
+ myled = 1;
+ outpin = 1;
+ int i = 0;
+ usb_write("Hello World !\n");
+ while(1) {
+ myled = 1;
+ outpin = 1;
+ i = 0;
+ wait(1);
+ char * str = "This program is alive \n";
+ usb_write(str);
+ transmit("Hello", 5);
+ }
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Oct 18 03:57:42 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1 \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/transmitter.c Sat Oct 18 03:57:42 2014 +0000
@@ -0,0 +1,29 @@
+#include "transmitter.h"
+
+#define PULSE_WIDTH 1000
+#define ONE_DELAY 10000
+#define ZERO_DELAY 40000
+
+
+/*
+void transmit_bit(char c) {
+ int i;
+ for (i = 0; i < 8; i++) {
+ myled = 1;
+ wait_us(PULSE_WIDTH);
+ myled = 0;
+ if (c & 0x1) {
+ wait_us(ONE_DELAY);
+ } else {
+ wait_us(ZERO_DELAY);
+ }
+ c >>= 1;
+ }
+}
+
+void transmit(char * data, unsigned int size) {
+ int i;
+ for (i = 0; i < size; i++) {
+ transmit_bit(data[i]);
+ }
+}*/
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/transmitter.h Sat Oct 18 03:57:42 2014 +0000 @@ -0,0 +1,7 @@ +#ifndef transmitter_h +#define transmitter_h + +void transmit_bit(char c); +void transmit(char * data, unsigned int size); + +#endif \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usb.cpp Sat Oct 18 03:57:42 2014 +0000
@@ -0,0 +1,8 @@
+#include "mbed.h"
+#include "usb.h"
+
+Serial pc(SERIAL_TX, SERIAL_RX);
+
+void usb_write(char * text) {
+ pc.printf(text);
+ }
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/usb.h Sat Oct 18 03:57:42 2014 +0000 @@ -0,0 +1,7 @@ +#ifndef usb_h +#define usb_h + +char * usb_read(); +void usb_write(char * text); + +#endif \ No newline at end of file