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RTC Lib & Output
Dependencies: LM75B RTC8563 mbed
main.cpp@0:b2c29eef3ac4, 2015-04-08 (annotated)
- Committer:
- EmilMcDuck
- Date:
- Wed Apr 08 14:01:45 2015 +0000
- Revision:
- 0:b2c29eef3ac4
- Child:
- 1:9d545a2abf32
Publish
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
EmilMcDuck | 0:b2c29eef3ac4 | 1 | #include "mbed.h" |
EmilMcDuck | 0:b2c29eef3ac4 | 2 | #include "LM75B.h" |
EmilMcDuck | 0:b2c29eef3ac4 | 3 | |
EmilMcDuck | 0:b2c29eef3ac4 | 4 | #define RTC8563_ADR 0xA2 |
EmilMcDuck | 0:b2c29eef3ac4 | 5 | |
EmilMcDuck | 0:b2c29eef3ac4 | 6 | #define CONTROL1 0x00 |
EmilMcDuck | 0:b2c29eef3ac4 | 7 | #define CONTROL2 0x01 |
EmilMcDuck | 0:b2c29eef3ac4 | 8 | #define SECONDS 0x02 |
EmilMcDuck | 0:b2c29eef3ac4 | 9 | #define MINUTES 0x03 |
EmilMcDuck | 0:b2c29eef3ac4 | 10 | #define HOURS 0x04 |
EmilMcDuck | 0:b2c29eef3ac4 | 11 | #define DAYS 0x05 |
EmilMcDuck | 0:b2c29eef3ac4 | 12 | #define WEEKDAYS 0x06 |
EmilMcDuck | 0:b2c29eef3ac4 | 13 | #define MONTHS 0x07 |
EmilMcDuck | 0:b2c29eef3ac4 | 14 | #define YEARS 0x08 |
EmilMcDuck | 0:b2c29eef3ac4 | 15 | #define MINUTE_ALARM 0x09 |
EmilMcDuck | 0:b2c29eef3ac4 | 16 | #define HOUR_ALARM 0x0A |
EmilMcDuck | 0:b2c29eef3ac4 | 17 | #define DAY_ALARM 0x0B |
EmilMcDuck | 0:b2c29eef3ac4 | 18 | #define WEEKDAY_ALARM 0x0C |
EmilMcDuck | 0:b2c29eef3ac4 | 19 | #define CLOCKOUT_FREQ 0x0D |
EmilMcDuck | 0:b2c29eef3ac4 | 20 | #define TIMER_CINTROL 0x0E |
EmilMcDuck | 0:b2c29eef3ac4 | 21 | #define TIMER 0x0F |
EmilMcDuck | 0:b2c29eef3ac4 | 22 | #define _READ 0x01 |
EmilMcDuck | 0:b2c29eef3ac4 | 23 | |
EmilMcDuck | 0:b2c29eef3ac4 | 24 | char year, month, day, week; |
EmilMcDuck | 0:b2c29eef3ac4 | 25 | char hour, minute, sec; |
EmilMcDuck | 0:b2c29eef3ac4 | 26 | |
EmilMcDuck | 0:b2c29eef3ac4 | 27 | char week_chr[7][4] = {"MON","TUE","WED","THU","FRI","SAT","SUN"}; |
EmilMcDuck | 0:b2c29eef3ac4 | 28 | |
EmilMcDuck | 0:b2c29eef3ac4 | 29 | BusOut myled(P1_13,P1_12,P1_7,P1_6,P1_4,P1_3,P1_1,P1_0,LED4,LED3,LED2,LED1); |
EmilMcDuck | 0:b2c29eef3ac4 | 30 | AnalogIn LDR (p16); |
EmilMcDuck | 0:b2c29eef3ac4 | 31 | |
EmilMcDuck | 0:b2c29eef3ac4 | 32 | InterruptIn sw1(P0_10); |
EmilMcDuck | 0:b2c29eef3ac4 | 33 | InterruptIn sw2(P0_15); |
EmilMcDuck | 0:b2c29eef3ac4 | 34 | InterruptIn sw3(P0_23); |
EmilMcDuck | 0:b2c29eef3ac4 | 35 | InterruptIn sw4(P1_16); |
EmilMcDuck | 0:b2c29eef3ac4 | 36 | |
EmilMcDuck | 0:b2c29eef3ac4 | 37 | Serial pc(USBTX, USBRX); |
EmilMcDuck | 0:b2c29eef3ac4 | 38 | LM75B sensor(p28, p27); |
EmilMcDuck | 0:b2c29eef3ac4 | 39 | I2C i2c(p28, p27); |
EmilMcDuck | 0:b2c29eef3ac4 | 40 | |
EmilMcDuck | 0:b2c29eef3ac4 | 41 | typedef enum state_t {menue, date, ldr, temp} state_t; |
EmilMcDuck | 0:b2c29eef3ac4 | 42 | state_t state = menue; |
EmilMcDuck | 0:b2c29eef3ac4 | 43 | |
EmilMcDuck | 0:b2c29eef3ac4 | 44 | void getNextState(); |
EmilMcDuck | 0:b2c29eef3ac4 | 45 | void printTime(); |
EmilMcDuck | 0:b2c29eef3ac4 | 46 | void flashLDR(); |
EmilMcDuck | 0:b2c29eef3ac4 | 47 | void rtc_init(); |
EmilMcDuck | 0:b2c29eef3ac4 | 48 | char rtc_read(char address); |
EmilMcDuck | 0:b2c29eef3ac4 | 49 | void rtc_write(char address, char value); |
EmilMcDuck | 0:b2c29eef3ac4 | 50 | |
EmilMcDuck | 0:b2c29eef3ac4 | 51 | int main() |
EmilMcDuck | 0:b2c29eef3ac4 | 52 | { |
EmilMcDuck | 0:b2c29eef3ac4 | 53 | sensor.open(); |
EmilMcDuck | 0:b2c29eef3ac4 | 54 | rtc_init(); |
EmilMcDuck | 0:b2c29eef3ac4 | 55 | |
EmilMcDuck | 0:b2c29eef3ac4 | 56 | sw1.rise(&getNextState); |
EmilMcDuck | 0:b2c29eef3ac4 | 57 | sw2.rise(&getNextState); |
EmilMcDuck | 0:b2c29eef3ac4 | 58 | sw3.rise(&getNextState); |
EmilMcDuck | 0:b2c29eef3ac4 | 59 | sw4.rise(&getNextState); |
EmilMcDuck | 0:b2c29eef3ac4 | 60 | |
EmilMcDuck | 0:b2c29eef3ac4 | 61 | while(1) { |
EmilMcDuck | 0:b2c29eef3ac4 | 62 | myled = 0x0000; |
EmilMcDuck | 0:b2c29eef3ac4 | 63 | switch(state) { |
EmilMcDuck | 0:b2c29eef3ac4 | 64 | case menue: |
EmilMcDuck | 0:b2c29eef3ac4 | 65 | pc.printf("########### M E N U ###########"); |
EmilMcDuck | 0:b2c29eef3ac4 | 66 | pc.printf("1.Taste => Menue anzeigen\n\r"); |
EmilMcDuck | 0:b2c29eef3ac4 | 67 | pc.printf("2.Taste => Uhrzeit und Datum\n\r"); |
EmilMcDuck | 0:b2c29eef3ac4 | 68 | pc.printf("3.Taste => LDR-Wert und LED-Array\n\r"); |
EmilMcDuck | 0:b2c29eef3ac4 | 69 | pc.printf("4.Taste => Temperatur anzeigen\n\r"); |
EmilMcDuck | 0:b2c29eef3ac4 | 70 | break; |
EmilMcDuck | 0:b2c29eef3ac4 | 71 | case date: |
EmilMcDuck | 0:b2c29eef3ac4 | 72 | printTime(); |
EmilMcDuck | 0:b2c29eef3ac4 | 73 | break; |
EmilMcDuck | 0:b2c29eef3ac4 | 74 | case ldr: |
EmilMcDuck | 0:b2c29eef3ac4 | 75 | pc.printf("LDR: %f\n", LDR.read()); |
EmilMcDuck | 0:b2c29eef3ac4 | 76 | flashLDR(); |
EmilMcDuck | 0:b2c29eef3ac4 | 77 | break; |
EmilMcDuck | 0:b2c29eef3ac4 | 78 | case temp: |
EmilMcDuck | 0:b2c29eef3ac4 | 79 | pc.printf("Temperatur: %.1f\n\r", (float) sensor); |
EmilMcDuck | 0:b2c29eef3ac4 | 80 | break; |
EmilMcDuck | 0:b2c29eef3ac4 | 81 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 82 | pc.printf("##############################\n\r"); |
EmilMcDuck | 0:b2c29eef3ac4 | 83 | wait(0.2); |
EmilMcDuck | 0:b2c29eef3ac4 | 84 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 85 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 86 | |
EmilMcDuck | 0:b2c29eef3ac4 | 87 | void flashLDR() |
EmilMcDuck | 0:b2c29eef3ac4 | 88 | { |
EmilMcDuck | 0:b2c29eef3ac4 | 89 | for(float w = 0; w < 0.6; w+=0.05) |
EmilMcDuck | 0:b2c29eef3ac4 | 90 | if(LDR>=w) |
EmilMcDuck | 0:b2c29eef3ac4 | 91 | myled = (myled << 1) + 1; |
EmilMcDuck | 0:b2c29eef3ac4 | 92 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 93 | |
EmilMcDuck | 0:b2c29eef3ac4 | 94 | void getNextState() |
EmilMcDuck | 0:b2c29eef3ac4 | 95 | { |
EmilMcDuck | 0:b2c29eef3ac4 | 96 | if(sw1) state = menue; |
EmilMcDuck | 0:b2c29eef3ac4 | 97 | else if(sw2) state = date; |
EmilMcDuck | 0:b2c29eef3ac4 | 98 | else if(sw3) state = ldr; |
EmilMcDuck | 0:b2c29eef3ac4 | 99 | else if (sw4) state = temp; |
EmilMcDuck | 0:b2c29eef3ac4 | 100 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 101 | |
EmilMcDuck | 0:b2c29eef3ac4 | 102 | void printTime() |
EmilMcDuck | 0:b2c29eef3ac4 | 103 | { |
EmilMcDuck | 0:b2c29eef3ac4 | 104 | year = rtc_read(YEARS); |
EmilMcDuck | 0:b2c29eef3ac4 | 105 | month = rtc_read(MONTHS); |
EmilMcDuck | 0:b2c29eef3ac4 | 106 | day = rtc_read(DAYS); |
EmilMcDuck | 0:b2c29eef3ac4 | 107 | week = rtc_read(WEEKDAYS); |
EmilMcDuck | 0:b2c29eef3ac4 | 108 | hour = rtc_read(HOURS); |
EmilMcDuck | 0:b2c29eef3ac4 | 109 | minute = rtc_read(MINUTES); |
EmilMcDuck | 0:b2c29eef3ac4 | 110 | sec = rtc_read(SECONDS); |
EmilMcDuck | 0:b2c29eef3ac4 | 111 | |
EmilMcDuck | 0:b2c29eef3ac4 | 112 | pc.printf("20%d/%02d/%02d %s\n", year, month, day, week_chr[week]); // Date |
EmilMcDuck | 0:b2c29eef3ac4 | 113 | pc.printf("%02d:%02d:%02d\n", hour, minute, sec); // Time |
EmilMcDuck | 0:b2c29eef3ac4 | 114 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 115 | |
EmilMcDuck | 0:b2c29eef3ac4 | 116 | void rtc_init() |
EmilMcDuck | 0:b2c29eef3ac4 | 117 | { |
EmilMcDuck | 0:b2c29eef3ac4 | 118 | pc.printf("RTC-Setup..."); |
EmilMcDuck | 0:b2c29eef3ac4 | 119 | |
EmilMcDuck | 0:b2c29eef3ac4 | 120 | rtc_write(CONTROL1, 0x20); //stop |
EmilMcDuck | 0:b2c29eef3ac4 | 121 | rtc_write(CONTROL2, 0x00); |
EmilMcDuck | 0:b2c29eef3ac4 | 122 | rtc_write(YEARS, 15); |
EmilMcDuck | 0:b2c29eef3ac4 | 123 | rtc_write(MONTHS,3); |
EmilMcDuck | 0:b2c29eef3ac4 | 124 | rtc_write(DAYS, 13); |
EmilMcDuck | 0:b2c29eef3ac4 | 125 | rtc_write(HOURS, 21); |
EmilMcDuck | 0:b2c29eef3ac4 | 126 | rtc_write(MINUTES, 7); |
EmilMcDuck | 0:b2c29eef3ac4 | 127 | rtc_write(SECONDS, 0); |
EmilMcDuck | 0:b2c29eef3ac4 | 128 | rtc_write(WEEKDAYS, 5); |
EmilMcDuck | 0:b2c29eef3ac4 | 129 | rtc_write(CLOCKOUT_FREQ, 0x00); // 0x83 = TE on & 1Hz |
EmilMcDuck | 0:b2c29eef3ac4 | 130 | rtc_write(TIMER_CINTROL, 0x00); |
EmilMcDuck | 0:b2c29eef3ac4 | 131 | rtc_write(CONTROL1, 0x00); //start |
EmilMcDuck | 0:b2c29eef3ac4 | 132 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 133 | |
EmilMcDuck | 0:b2c29eef3ac4 | 134 | char rtc_read(char address) |
EmilMcDuck | 0:b2c29eef3ac4 | 135 | { |
EmilMcDuck | 0:b2c29eef3ac4 | 136 | char value; |
EmilMcDuck | 0:b2c29eef3ac4 | 137 | i2c.start(); |
EmilMcDuck | 0:b2c29eef3ac4 | 138 | i2c.write(RTC8563_ADR); |
EmilMcDuck | 0:b2c29eef3ac4 | 139 | i2c.write(address); |
EmilMcDuck | 0:b2c29eef3ac4 | 140 | i2c.start(); |
EmilMcDuck | 0:b2c29eef3ac4 | 141 | i2c.write(RTC8563_ADR | _READ); |
EmilMcDuck | 0:b2c29eef3ac4 | 142 | value = i2c.read(0); |
EmilMcDuck | 0:b2c29eef3ac4 | 143 | i2c.stop(); |
EmilMcDuck | 0:b2c29eef3ac4 | 144 | |
EmilMcDuck | 0:b2c29eef3ac4 | 145 | return value; |
EmilMcDuck | 0:b2c29eef3ac4 | 146 | } |
EmilMcDuck | 0:b2c29eef3ac4 | 147 | void rtc_write(char address, char value) |
EmilMcDuck | 0:b2c29eef3ac4 | 148 | { |
EmilMcDuck | 0:b2c29eef3ac4 | 149 | i2c.start(); |
EmilMcDuck | 0:b2c29eef3ac4 | 150 | i2c.write(RTC8563_ADR); |
EmilMcDuck | 0:b2c29eef3ac4 | 151 | i2c.write(address); |
EmilMcDuck | 0:b2c29eef3ac4 | 152 | i2c.write(value); |
EmilMcDuck | 0:b2c29eef3ac4 | 153 | i2c.stop(); |
EmilMcDuck | 0:b2c29eef3ac4 | 154 | } |