lye cypher
/
kl46z_recursive_count
SSD541_HW12.2
main.cpp@0:fb6ea61c315b, 2016-11-06 (annotated)
- Committer:
- eseifert
- Date:
- Sun Nov 06 16:54:17 2016 +0000
- Revision:
- 0:fb6ea61c315b
- Child:
- 1:d82569d51964
finished;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
eseifert | 0:fb6ea61c315b | 1 | #include "mbed.h" |
eseifert | 0:fb6ea61c315b | 2 | #include "TSISensor.h" |
eseifert | 0:fb6ea61c315b | 3 | #include "SLCD.h" |
eseifert | 0:fb6ea61c315b | 4 | #define TSILIMIT 0.99 |
eseifert | 0:fb6ea61c315b | 5 | #define LCDCHARLEN 10 |
eseifert | 0:fb6ea61c315b | 6 | #define DATAINTERVAL 0.5 |
eseifert | 0:fb6ea61c315b | 7 | #define PROGNAME "kl46z_recursive_count\n\r" |
eseifert | 0:fb6ea61c315b | 8 | #define BUTTONTIME 0.2 |
eseifert | 0:fb6ea61c315b | 9 | #define LCDTITLE "rCNT" |
eseifert | 0:fb6ea61c315b | 10 | #define TITLEWAIT 2.0 |
eseifert | 0:fb6ea61c315b | 11 | #define NUMBUTS 2 |
eseifert | 0:fb6ea61c315b | 12 | #define LBUT PTC12 // port addresses for buttons |
eseifert | 0:fb6ea61c315b | 13 | #define RBUT PTC3 |
eseifert | 0:fb6ea61c315b | 14 | |
eseifert | 0:fb6ea61c315b | 15 | DigitalOut gpo(D0); |
eseifert | 0:fb6ea61c315b | 16 | DigitalOut led0(LED_RED); |
eseifert | 0:fb6ea61c315b | 17 | SLCD slcd; |
eseifert | 0:fb6ea61c315b | 18 | Serial pc(USBTX, USBRX); |
eseifert | 0:fb6ea61c315b | 19 | PwmOut gled(LED_GREEN); |
eseifert | 0:fb6ea61c315b | 20 | PwmOut rled(LED_RED); |
eseifert | 0:fb6ea61c315b | 21 | TSISensor tsi; |
eseifert | 0:fb6ea61c315b | 22 | Timer ButtonTimer; |
eseifert | 0:fb6ea61c315b | 23 | DigitalIn buttons[NUMBUTS] = {LBUT, RBUT}; |
eseifert | 0:fb6ea61c315b | 24 | |
eseifert | 0:fb6ea61c315b | 25 | char lcdData[LCDCHARLEN]; |
eseifert | 0:fb6ea61c315b | 26 | float tsidata = 0.0; |
eseifert | 0:fb6ea61c315b | 27 | int count_num = 0; |
eseifert | 0:fb6ea61c315b | 28 | int count_min = 0; |
eseifert | 0:fb6ea61c315b | 29 | |
eseifert | 0:fb6ea61c315b | 30 | void LCDMess(char *lMess){ |
eseifert | 0:fb6ea61c315b | 31 | slcd.Home(); |
eseifert | 0:fb6ea61c315b | 32 | slcd.clear(); |
eseifert | 0:fb6ea61c315b | 33 | slcd.printf(lMess); |
eseifert | 0:fb6ea61c315b | 34 | } |
eseifert | 0:fb6ea61c315b | 35 | |
eseifert | 0:fb6ea61c315b | 36 | void initialize_global_vars() |
eseifert | 0:fb6ea61c315b | 37 | { |
eseifert | 0:fb6ea61c315b | 38 | pc.printf(PROGNAME); |
eseifert | 0:fb6ea61c315b | 39 | // set up DAQ timer |
eseifert | 0:fb6ea61c315b | 40 | // set up DAQ timers |
eseifert | 0:fb6ea61c315b | 41 | ButtonTimer.start(); |
eseifert | 0:fb6ea61c315b | 42 | ButtonTimer.reset(); |
eseifert | 0:fb6ea61c315b | 43 | } |
eseifert | 0:fb6ea61c315b | 44 | |
eseifert | 0:fb6ea61c315b | 45 | void showTitle() |
eseifert | 0:fb6ea61c315b | 46 | { |
eseifert | 0:fb6ea61c315b | 47 | LCDMess(LCDTITLE); |
eseifert | 0:fb6ea61c315b | 48 | wait(TITLEWAIT); |
eseifert | 0:fb6ea61c315b | 49 | return; |
eseifert | 0:fb6ea61c315b | 50 | } |
eseifert | 0:fb6ea61c315b | 51 | |
eseifert | 0:fb6ea61c315b | 52 | void count_backwards(int cnt, int min){ |
eseifert | 0:fb6ea61c315b | 53 | gled = !gled; |
eseifert | 0:fb6ea61c315b | 54 | pc.printf("\tT-%d\n\r", cnt); |
eseifert | 0:fb6ea61c315b | 55 | sprintf (lcdData,"tz%d",cnt); |
eseifert | 0:fb6ea61c315b | 56 | LCDMess(lcdData); |
eseifert | 0:fb6ea61c315b | 57 | wait(DATAINTERVAL); |
eseifert | 0:fb6ea61c315b | 58 | // tail recursion to correct the direction of counting |
eseifert | 0:fb6ea61c315b | 59 | if(cnt > min){ |
eseifert | 0:fb6ea61c315b | 60 | count_backwards(cnt-1,min); |
eseifert | 0:fb6ea61c315b | 61 | } |
eseifert | 0:fb6ea61c315b | 62 | } |
eseifert | 0:fb6ea61c315b | 63 | |
eseifert | 0:fb6ea61c315b | 64 | int main() |
eseifert | 0:fb6ea61c315b | 65 | { |
eseifert | 0:fb6ea61c315b | 66 | initialize_global_vars(); |
eseifert | 0:fb6ea61c315b | 67 | showTitle(); |
eseifert | 0:fb6ea61c315b | 68 | pc.printf(PROGNAME); |
eseifert | 0:fb6ea61c315b | 69 | while (true) { |
eseifert | 0:fb6ea61c315b | 70 | rled = !rled; |
eseifert | 0:fb6ea61c315b | 71 | tsidata = tsi.readPercentage(); |
eseifert | 0:fb6ea61c315b | 72 | count_num = floor(tsidata*51); |
eseifert | 0:fb6ea61c315b | 73 | if(count_num > 2){ |
eseifert | 0:fb6ea61c315b | 74 | pc.printf("\n Count down from: %d\n\r", count_num); |
eseifert | 0:fb6ea61c315b | 75 | sprintf (lcdData,"%d",count_num); |
eseifert | 0:fb6ea61c315b | 76 | LCDMess(lcdData); |
eseifert | 0:fb6ea61c315b | 77 | } |
eseifert | 0:fb6ea61c315b | 78 | wait(DATAINTERVAL); |
eseifert | 0:fb6ea61c315b | 79 | if (ButtonTimer > BUTTONTIME) { |
eseifert | 0:fb6ea61c315b | 80 | if(!buttons[0]){ |
eseifert | 0:fb6ea61c315b | 81 | count_backwards(count_num, count_min); |
eseifert | 0:fb6ea61c315b | 82 | showTitle(); |
eseifert | 0:fb6ea61c315b | 83 | } |
eseifert | 0:fb6ea61c315b | 84 | if(!buttons[1]){ |
eseifert | 0:fb6ea61c315b | 85 | count_num = 0; |
eseifert | 0:fb6ea61c315b | 86 | showTitle(); |
eseifert | 0:fb6ea61c315b | 87 | } |
eseifert | 0:fb6ea61c315b | 88 | } |
eseifert | 0:fb6ea61c315b | 89 | ButtonTimer.reset(); |
eseifert | 0:fb6ea61c315b | 90 | } |
eseifert | 0:fb6ea61c315b | 91 | } |