Wilbert George
This app requires a Windows Form to send/receive commands. See GHI Electronics Codeshare.. https://www.ghielectronics.com/community
Revision 0:9122ef37df55, committed 2015-03-07
- Comitter:
- willgeorge
- Date:
- Sat Mar 07 11:09:27 2015 +0000
- Commit message:
- This app requires a Windows Form to send/receive commands.
; See GHI Electronics code share.
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBDevice.lib Sat Mar 07 11:09:27 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/USBDevice/#3b1c43ac045c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Mar 07 11:09:27 2015 +0000
@@ -0,0 +1,206 @@
+//
+//OutrageousPWM
+//
+// Control characters are used so there is no restriction on text characters that can be used for serial messages.
+// Test for the control characters to reset the mBuino and for setting the PWM values
+
+//Use USB Library Device stack
+
+#include "mbed.h"
+#include "USBSerial.h"
+#include <string>
+
+
+DigitalOut LED[] = {(LED1), (LED2), (LED3), (LED4), (LED5), (LED6), (LED7)};// declare 7 LEDs
+
+
+ //Virtual serial port over USB
+ USBSerial serial;
+
+/*
+ Serial pc(USBTX, USBRX);
+ DigitalOut led1(LED1);
+ DigitalOut led2(LED2);
+ DigitalOut led3(LED3);
+ DigitalOut led4(LED4);
+ DigitalOut led5(LED5);
+ DigitalOut led6(LED6);
+ DigitalOut led7(LED7);
+ pwmEdge.rise(&showEdgeHigh);
+ pwmEdge.fall(&showEdgeLow);
+*/
+
+
+ //Create interrupt input
+ InterruptIn pwmEdge(P0_21);
+
+ //create PWM outputs
+ PwmOut PWM1(P0_18);
+ PwmOut PWM2(P0_19);
+ PwmOut PWM3(P1_15);
+
+ //create output pin to display interrupt state event
+ DigitalOut led7(LED7);
+
+ float Period1;
+ float DutyCycle1;
+ float Period2;
+ float DutyCycle2;
+ float Period3;
+ float DutyCycle3;
+
+//Event
+void onEdgeHigh() {
+ led7 = 1;
+}
+//
+
+//Event
+void onEdgeLow() {
+ led7 = 0;
+}
+//
+
+int main() {
+
+ reset: //Here on Reset request..
+
+ for(int i = 0; i < 7; i++) // turn all led's off
+ {
+ LED[i].write(0);
+ }
+ //
+
+ //Display we have started...
+ for(int i = 0;i < 7;i++) {
+ LED[i].write(1);
+ wait(0.2);
+ LED[i].write(0);
+ }
+
+ for(int i = 6;i >= 0;i--) {
+ LED[i].write(1);
+ wait(0.2);
+ LED[i].write(0);
+ }
+
+
+ //Test 1kHz 70% (0.999 kHz)
+ Period1 = 0.01;
+ DutyCycle1 = 0.3;
+
+ //Test 1kHz 50% (0.999 kHz)
+ Period2 = 0.001;
+ DutyCycle2 = 0.5;
+
+ //Test 979.4 kHz
+ Period3 = 0.000001;
+ DutyCycle3 = 0.5; //51%
+
+ //Set some defaults
+ PWM1.period(Period1);
+ PWM1=DutyCycle1;
+
+ PWM2.period(Period2);
+ PWM2=DutyCycle2;
+
+ PWM3.period(Period3);
+ PWM3=DutyCycle3;
+
+ while(1)
+ {
+ if(serial.readable()) {
+
+ //Control Characters are received as Decimal ASCII
+
+ char str[60];
+ serial.gets(str, 60);
+ serial.puts(str);
+ //Indicate we have received/returned data
+ LED[3].write(1);
+ wait(0.2);
+ LED[3].write(0);
+
+ //Get PWM (or other) to use and the value from string
+ //The first three characters tell us what PwmOut to use
+ //The remaining characters are the value to use
+
+ int len = strlen(str);
+ string s2 = string(str).substr(3, len - 3);
+ //serial.printf("s: %s Len: %d \r\n", str, len);
+
+ //Warning: Non-POD class type passed through ellipsis in "main.cpp"
+ //serial.printf("part: %s \r\n", s2); //<< My original code causing error
+ //serial.printf("part: %s \r\n", s2.c_str()); //<< taylorza provided this and saved my day
+
+
+ //Control Character 10 = DLE (P0_21)
+ //Interrupt input pin
+ if(str[0] == '1' && str[1] == '0') {
+ if(str[2] == '1') {
+ pwmEdge.rise(&onEdgeHigh); //Event
+ }
+ else if(str[2] == '0') {
+ pwmEdge.fall(&onEdgeLow); //Event
+ }
+ //Disable events
+ else if(str[2] == '2') {
+ pwmEdge.rise(NULL);
+ pwmEdge.fall(NULL);
+ }
+ //
+ }
+ //
+
+ //Control Character 18 = DC2 (PwmOut PWM1(P0_18))
+ else if(str[0] == '1' && str[1] == '8') {
+ if(str[2] == 'd') {
+ DutyCycle1 = atof(s2.c_str());
+ PWM1=DutyCycle1;
+ }
+ else if(str[2] == 'p') {
+ Period1 = atof(s2.c_str());
+ PWM1.period(Period1);
+ }
+ //
+ }
+ //
+
+ //Control Character 19 = DC3 (PwmOut PWM2(P0_19))
+ else if(str[0] == '1' && str[1] == '9') {
+ if(str[2] == 'd') {
+ DutyCycle2 = atof(s2.c_str());
+ PWM2=DutyCycle2;
+ }
+ else if(str[2] == 'p') {
+ Period2 = atof(s2.c_str());
+ PWM2.period(Period2);
+ }
+ //
+ }
+ //
+
+ //Control Character 20 = DC4 (PwmOut PWM3(P1_15))
+ else if(str[0] == '2' && str[1] == '0') {
+ if(str[2] == 'd') {
+ DutyCycle3 = atof(s2.c_str());
+ PWM3=DutyCycle3;
+ }
+ else if(str[2] == 'p') {
+ Period3 = atof(s2.c_str());
+ PWM3.period(Period3);
+ }
+ //
+ }
+ //
+
+ //Control Character 17 = DC1
+ //Reset the mBuino - (Assuming serial can read)
+ else if(str[0] == '1' && str[1] == '7') {
+ goto reset;
+ } //if
+
+ } //if serial.readable()
+ } //while
+} //main
+//
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Mar 07 11:09:27 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/4fc01daae5a5 \ No newline at end of file