相對應的時鐘鬧鐘程序
- //
- // STC15F204EA DIY LED Clock
- //
- #include "stc15.h"
- #include <stdint.h>
- #include <stdio.h>
- #include "adc.h"
- #include "ds1302.h"
- #include "led.h"
-
- #define FOSC 11059200
- // clear wdt
- #define WDT_CLEAR() (WDT_CONTR |= 1 << 4)
- // alias for relay and buzzer outputs, using relay to drive led for indication of main loop status
- #define RELAY P1_4
- #define BUZZER P1_5
-
- // adc channels for sensors
- #define ADC_LIGHT 6
- #define ADC_TEMP 7
- // three steps of dimming. Photoresistor adc value is 0-255. Lower values = brighter.
- #define DIM_HI 100
- #define DIM_LO 190
- // button switch aliases
- #define SW2 P3_0
- #define S2 1
- #define SW1 P3_1
- #define S1 0
- // display mode states
- enum keyboard_mode {
- K_NORMAL,
- K_WAIT_S1,
- K_WAIT_S2,
- K_SET_HOUR,
- K_SET_MINUTE,
- K_SET_HOUR_12_24,
- K_SEC_DISP,
- K_TEMP_DISP,
- K_DATE_DISP,
- K_DATE_SWDISP,
- K_SET_MONTH,
- K_SET_DAY,
- K_WEEKDAY_DISP,
- K_DEBUG
- };
- // display mode states
- enum display_mode {
- M_NORMAL,
- M_SET_HOUR_12_24,
- M_SEC_DISP,
- M_TEMP_DISP,
- M_DATE_DISP,
- M_WEEKDAY_DISP,
- M_DEBUG
- };
- /* ------------------------------------------------------------------------- */
- void _delay_ms(uint8_t ms)
- {
- // i,j selected for fosc 11.0592MHz, using oscilloscope
- // the stc-isp tool gives inaccurate values (perhaps for C51 vs sdcc?)
- // max 255 ms
- uint8_t i, j;
- do {
- i = 4;
- j = 240;
- do
- {
- while (--j);
- } while (--i);
- } while (--ms);
- }
- // GLOBALS
- uint8_t count; // was uint16 - 8 seems to be enough
- uint16_t temp; // temperature sensor value
- uint8_t lightval; // light sensor value
- volatile uint8_t displaycounter;
- volatile uint8_t _100us_count;
- volatile uint8_t _10ms_count;
- uint8_t dmode = M_NORMAL; // display mode state
- uint8_t kmode = K_NORMAL;
- uint8_t smode,lmode;
- volatile __bit display_colon; // flash colon
- __bit flash_01;
- __bit flash_23;
- __bit beep = 1;
- volatile __bit S1_LONG;
- volatile __bit S1_PRESSED;
- volatile __bit S2_LONG;
- volatile __bit S2_PRESSED;
- volatile uint8_t debounce[2]; // switch debounce buffer
- volatile uint8_t switchcount[2];
- #define SW_CNTMAX 80
- void timer0_isr() __interrupt 1 __using 1
- {
- // display refresh ISR
- // cycle thru digits one at a time
- uint8_t digit = displaycounter % 4;
- // turn off all digits, set high
- P3 |= 0x3C;
- // auto dimming, skip lighting for some cycles
- if (displaycounter % lightval < 4 ) {
- // fill digits
- P2 = dbuf[digit];
- // turn on selected digit, set low
- P3 &= ~(0x4 << digit);
- }
- displaycounter++;
- // divider: every 10ms
- if (++_100us_count == 100) {
- _100us_count = 0;
- _10ms_count++;
- // colon blink stuff, 500ms
- if (_10ms_count == 50) {
- display_colon = !display_colon;
- _10ms_count = 0;
- }
-
- // switch read, debounce:
- // increment count if settled closed
- if ((debounce[0]) == 0x00) {
- // down for at least 8 ticks
- S1_PRESSED = 1;
- switchcount[0]++;
- } else {
- // released or bounced, reset state
- S1_PRESSED = 0;
- switchcount[0] = 0;
- }
- if ((debounce[1]) == 0x00) {
- // down for at least 8 ticks
- S2_PRESSED = 1;
- switchcount[1]++;
- } else {
- // released or bounced, reset state
- S2_PRESSED = 0;
- switchcount[1] = 0;
- }
- // debouncing stuff
- // keep resetting halfway if held long
- if (switchcount[0] > SW_CNTMAX)
- {switchcount[0] = SW_CNTMAX; S1_LONG=1;}
- if (switchcount[1] > SW_CNTMAX)
- {switchcount[1] = SW_CNTMAX; S2_LONG=1;}
- // read switch positions into sliding 8-bit window
- debounce[0] = (debounce[0] << 1) | SW1;
- debounce[1] = (debounce[1] << 1) | SW2;
- }
- }
- void Timer0Init(void) //100us @ 11.0592MHz
- {
- TL0 = 0xA4; //Initial timer value
- TH0 = 0xFF; //Initial timer value
- TF0 = 0; //Clear TF0 flag
- TR0 = 1; //Timer0 start run
- ET0 = 1; // enable timer0 interrupt
- EA = 1; // global interrupt enable
- }
- #define getkeypress(a) a##_PRESSED
- int8_t gettemp(uint16_t raw) {
- // formula for ntc adc value to approx C
- return 76 - raw * 64 / 637;
- }
- /*********************************************/
- int main()
- {
- // SETUP
- // set photoresistor & ntc pins to open-drain output
- P1M1 |= (1<<6) | (1<<7);
- P1M0 |= (1<<6) | (1<<7);
-
- // init rtc
- ds_init();
- // init/read ram config
- ds_ram_config_init();
-
- // uncomment in order to reset minutes and hours to zero.. Should not need this.
- //ds_reset_clock();
-
- Timer0Init(); // display refresh & switch read
-
- // LOOP
- while(1)
- {
- RELAY = 0;
- _delay_ms(100);
- RELAY = 1;
- // run every ~1 secs
- if ((count & 3) == 0) {
- lightval = getADCResult8(ADC_LIGHT) >> 3;
- temp = gettemp(getADCResult(ADC_TEMP)) + (config_table[CONFIG_TEMP_BYTE]&CONFIG_TEMP_MASK) - 4;
- // constrain dimming range
- if (lightval < 4)
- lightval = 4;
- }
- ds_readburst(); // read rtc
- // keyboard decision tree
- switch (kmode) {
-
- case K_SET_HOUR:
- flash_01 = !flash_01;
- if (! flash_01) {
- if (getkeypress(S2)) ds_hours_incr();
- if (getkeypress(S1)) kmode = K_SET_MINUTE;
- }
- break;
-
- case K_SET_MINUTE:
- flash_01 = 0;
- flash_23 = !flash_23;
- if (! flash_23) {
- if (getkeypress(S2)) ds_minutes_incr();
- if (getkeypress(S1)) kmode = K_SET_HOUR_12_24;
- }
- break;
- case K_SET_HOUR_12_24:
- dmode=M_SET_HOUR_12_24;
- if (getkeypress(S2)) ds_hours_12_24_toggle();
- if (getkeypress(S1)) kmode = K_NORMAL;
- break;
-
- case K_TEMP_DISP:
- dmode=M_TEMP_DISP;
- if (getkeypress(S1))
- { uint8_t offset=config_table[CONFIG_TEMP_BYTE]&CONFIG_TEMP_MASK;
- offset++; offset&=CONFIG_TEMP_MASK;
- config_table[CONFIG_TEMP_BYTE]=(config_table[CONFIG_TEMP_BYTE]&~CONFIG_TEMP_MASK)|offset;
- }
- if (getkeypress(S2)) kmode = K_DATE_DISP;
- break;
-
- case K_DATE_DISP:
- dmode=M_DATE_DISP;
- if (getkeypress(S1)) {kmode=K_WAIT_S1; lmode=CONF_SW_MMDD?K_SET_DAY:K_SET_MONTH; smode=K_DATE_SWDISP; }
- if (getkeypress(S2)) kmode = K_WEEKDAY_DISP;
- break;
- case K_DATE_SWDISP:
- CONF_SW_MMDD=!CONF_SW_MMDD;
- kmode=K_DATE_DISP;
- break;
-
- case K_SET_MONTH:
- flash_01 = !flash_01;
- if (! flash_01) {
- if (getkeypress(S2)) { ds_month_incr(); }
- if (getkeypress(S1)) { flash_01 = 0; kmode = CONF_SW_MMDD?K_DATE_DISP:K_SET_DAY; }
- }
- break;
-
- case K_SET_DAY:
- flash_23 = !flash_23;
- if (! flash_23) {
- if (getkeypress(S2)) { ds_day_incr(); }
- if (getkeypress(S1)) { flash_23 = 0; kmode = CONF_SW_MMDD?K_SET_MONTH:K_DATE_DISP;
- }
- }
- break;
-
- case K_WEEKDAY_DISP:
- dmode=M_WEEKDAY_DISP;
- if (getkeypress(S1)) ds_weekday_incr();
- if (getkeypress(S2)) kmode = K_NORMAL;
- break;
-
- case K_DEBUG:
- dmode=M_DEBUG;
- if (count>100) kmode = K_NORMAL;
- if (S1_PRESSED||S2_PRESSED) count=0;
- break;
- case K_SEC_DISP:
- dmode=M_SEC_DISP;
- if (getkeypress(S1) || (count>100)) { kmode = K_NORMAL; }
- if (getkeypress(S2)) { ds_sec_zero(); }
- break;
- case K_WAIT_S1:
- count=0;
- if (!S1_PRESSED) {
- if (S1_LONG) {S1_LONG=0; kmode=lmode;}
- else {kmode=smode;}
- }
- break;
- case K_WAIT_S2:
- count=0;
- if (!S2_PRESSED) {
- if (S2_LONG) {S2_LONG=0; kmode=lmode;}
- else {kmode=smode;}
- }
- break;
- case K_NORMAL:
- default:
- flash_01 = 0;
- flash_23 = 0;
- dmode=M_NORMAL;
- if (S1_PRESSED) { kmode = K_WAIT_S1; lmode=K_SET_HOUR; smode=K_SEC_DISP; }
- //if (S2_PRESSED) { kmode = K_WAIT_S2; lmode=K_DEBUG; smode=K_TEMP_DISP; }
- if (S2_PRESSED) { kmode = K_TEMP_DISP; }
-
- };
- // display execution tree
-
- clearTmpDisplay();
- switch (dmode) {
- case M_NORMAL:
- if (flash_01) {
- dotdisplay(1,display_colon);
- } else {
- if (!H12_24) {
- filldisplay( 0, (rtc_table[DS_ADDR_HOUR]>>4)&(DS_MASK_HOUR24_TENS>>4), 0); // tenhour
- } else {
- if (H12_TH) filldisplay( 0, 1, 0); // tenhour in case AMPM mode is on, then '1' only is H12_TH is on
- }
- filldisplay( 1, rtc_table[DS_ADDR_HOUR]&DS_MASK_HOUR_UNITS, display_colon);
- }
-
- if (flash_23) {
- dotdisplay(2,display_colon);
- dotdisplay(3,H12_24&H12_PM); // dot3 if AMPM mode and PM=1
- } else {
- filldisplay( 2, (rtc_table[DS_ADDR_MINUTES]>>4)&(DS_MASK_MINUTES_TENS>>4), display_colon); //tenmin
- filldisplay( 3, rtc_table[DS_ADDR_MINUTES]&DS_MASK_MINUTES_UNITS, H12_24 & H12_PM); //min
- }
- break;
- case M_SET_HOUR_12_24:
- if (!H12_24) {
- filldisplay( 1, 2, 0); filldisplay( 2, 4, 0);
- } else {
- filldisplay( 1, 1, 0); filldisplay( 2, 2, 0);
- }
- filldisplay( 3, LED_h, 0);
- break;
- case M_SEC_DISP:
- dotdisplay(0,display_colon);
- dotdisplay(1,display_colon);
- filldisplay(2,(rtc_table[DS_ADDR_SECONDS]>>4)&(DS_MASK_SECONDS_TENS>>4),0);
- filldisplay(3,rtc_table[DS_ADDR_SECONDS]&DS_MASK_SECONDS_UNITS,0);
- break;
-
- case M_DATE_DISP:
- if (flash_01) {
- dotdisplay(1,1);
- } else {
- if (!CONF_SW_MMDD) {
- filldisplay( 0, rtc_table[DS_ADDR_MONTH]>>4, 0); // tenmonth ( &MASK_TENS useless, as MSB bits are read as '0')
- filldisplay( 1, rtc_table[DS_ADDR_MONTH]&DS_MASK_MONTH_UNITS, 1); }
- else {
- filldisplay( 2, rtc_table[DS_ADDR_MONTH]>>4, 0); // tenmonth ( &MASK_TENS useless, as MSB bits are read as '0')
- filldisplay( 3, rtc_table[DS_ADDR_MONTH]&DS_MASK_MONTH_UNITS, 0); }
- }
- if (!flash_23) {
- if (!CONF_SW_MMDD) {
- filldisplay( 2, rtc_table[DS_ADDR_DAY]>>4, 0); // tenday ( &MASK_TENS useless)
- filldisplay( 3, rtc_table[DS_ADDR_DAY]&DS_MASK_DAY_UNITS, 0); } // day
- else {
- filldisplay( 0, rtc_table[DS_ADDR_DAY]>>4, 0); // tenday ( &MASK_TENS useless)
- filldisplay( 1, rtc_table[DS_ADDR_DAY]&DS_MASK_DAY_UNITS, 1); } // day
- }
- break;
-
- case M_WEEKDAY_DISP:
- filldisplay( 1, LED_DASH, 0);
- filldisplay( 2, rtc_table[DS_ADDR_WEEKDAY], 0); //weekday ( &MASK_UNITS useless, all MSBs are '0')
- filldisplay( 3, LED_DASH, 0);
- break;
-
- case M_TEMP_DISP:
- filldisplay( 0, ds_int2bcd_tens(temp), 0);
- filldisplay( 1, ds_int2bcd_ones(temp), 0);
- filldisplay( 2, CONF_C_F ? LED_f : LED_c, 1);
- // if (temp<0) filldisplay( 3, LED_DASH, 0); -- temp defined as uint16, cannot be <0
- break;
- case M_DEBUG:
- filldisplay( 0, switchcount[0]>>4, S1_LONG);
- filldisplay( 1, switchcount[0]&15, S1_PRESSED);
- filldisplay( 2, switchcount[1]>>4, S2_LONG);
- filldisplay( 3, switchcount[1]&15, S2_PRESSED);
- break;
- }
- __critical { updateTmpDisplay(); }
-
- // save ram config
- ds_ram_config_write();
-
- if (S1_PRESSED || S2_PRESSED && ! (S1_LONG || S2_LONG)) {
- // try to dampen button over-response
- _delay_ms(100);
- }
- // reset long presses when button released
- if (! S1_PRESSED && S1_LONG) {
- S1_LONG = 0;
- }
- if (! S2_PRESSED && S2_LONG) {
- S2_LONG = 0;
- }
-
- count++;
- WDT_CLEAR();
- }
- }
- /* ------------------------------------------------------------------------- */
https://github.com/zerog2k/stc_diyclock
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