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Fork of lightsense_kl46z_states_nowait by
Diff: main.cpp
- Revision:
- 1:51f8c2b04ce2
- Parent:
- 0:e23fffd4b9a7
- Child:
- 2:c016448d89b2
--- a/main.cpp Thu Aug 14 21:18:38 2014 +0000 +++ b/main.cpp Fri Sep 05 02:26:47 2014 +0000 @@ -1,19 +1,61 @@ #include "mbed.h" +#include "SLCD.h" + +// An example of C++ abuse 140904 sc +//#define PRINTDEBUG +#define PROGNAME "blink_kl46z_states v1\n\r" #define LEDON false #define LEDOFF true - -// slightly more interesting blinky 140814 sc +#define PWMDWELL 50 // milliseconds +#define DFDELTA 0.01 +#define PWMTIME 1 // ms (kHz +#define LCDLEN 10 +#define RMPUP true +#define RMPDWN false +#define NUMSTATES 2 -float blinks[]={0.200, 0.700}; -int ledState = LEDON; -DigitalOut greenColor(LED_GREEN); -DigitalOut redColor(LED_RED); +float dutyFactor = 0.0; +PwmOut greenColor(LED_GREEN); +PwmOut redColor(LED_RED); +SLCD slcd; //define LCD display +float rampDirection[NUMSTATES] = {-DFDELTA, DFDELTA}; + +Serial pc(USBTX, USBRX); + +void LCDMess(char *lMess){ + slcd.Home(); + slcd.clear(); + slcd.printf(lMess); +} int main() { + char lcdData[LCDLEN]; + greenColor.period_ms(PWMTIME); // set the frequency of the pulse train + redColor.period_ms(PWMTIME); + int rampstate = RMPUP; + int numSteps; + float workingDelta; + int i=0; + + pc.printf(PROGNAME); + + workingDelta = rampDirection[rampstate]; + numSteps = (int)(1.0/workingDelta); while(true) { - ledState = !ledState; // Flip the general state - redColor = ledState; - greenColor = !ledState;// flip state but don't store it. - wait(blinks[ledState]); + i++; + redColor.write(dutyFactor); + greenColor.write(1.0 - dutyFactor); + dutyFactor += workingDelta; + sprintf (lcdData,"%4.3f",dutyFactor); + LCDMess(lcdData); +#ifdef PRINTDEBUG + pc.printf("i= %d dutyfactor = %5.4f workingDelta %5.4f \n\r", i, dutyFactor, workingDelta); +#endif + if (!(i % numSteps)){ + i=0; + rampstate = !rampstate; + workingDelta = rampDirection[rampstate]; + } + wait_ms(PWMDWELL); } } \ No newline at end of file