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@@ -6,6 +6,7 @@
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/sleep.h>
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+#include <util/delay.h>
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#include <string.h>
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#include "main.h"
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#include "ff.h"
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@@ -14,6 +15,10 @@
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#include "uart1.h"
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#include "xitoa.h"
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#include "stime.h"
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+#include "ds18b20.h"
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+#include "I2C.h"
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+#include "expander.h"
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+#include "HD44780-I2C.h"
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FUSES = {0xFF, 0x11, 0xFE}; /* ATmega644PA fuses: Low, High, Extended.
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@@ -22,25 +27,27 @@ in the output hex file with program code. However some old flash programmers
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cannot load the fuse bits from hex file. If it is the case, remove this line
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and use these values to program the fuse bits. */
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+volatile struct system_s System;
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FATFS Fatfs; /* File system object for each logical drive */
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FIL File1; /* File object */
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char Line[100]; /* Line buffer */
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-volatile BYTE Timer; /* 100Hz decrement timer */
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-
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/*---------------------------------------------------------*/
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/* 100Hz timer interrupt generated by OC1A */
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/*---------------------------------------------------------*/
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ISR(TIMER1_COMPA_vect)
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{
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- BYTE n;
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static WORD ivt_sync;
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static BYTE led;
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-
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-
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- n = Timer;
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- if (n) Timer = --n;;
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+ unsigned int *volatile ctimer;
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+ unsigned char i;
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+
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+ for(i=0; i<sizeof(System.timers)/sizeof(unsigned int); i++){ // decrement every variable from timers struct unless it's already zero
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+ ctimer = ((unsigned int *)&System.timers) + i;
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+ if(*ctimer)
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+ (*ctimer)--;
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+ }
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/* Sync interval */
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if (IVT_SYNC && ++ivt_sync >= IVT_SYNC * 100) {
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@@ -109,16 +116,24 @@ UINT get_line ( /* 0:Brownout, >0: Number of bytes received. */
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char c;
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UINT i = 0;
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+ set_timer(recv_timeout, 1000);
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for (;;) {
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- if (FLAGS & F_LVD) return 0; /* A brownout is detected */
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- if (!uart0_test()) continue;
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+ if (FLAGS & F_LVD)
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+ return 0; /* A brownout is detected */
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+ if (timer_expired(recv_timeout))
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+ return 0; /* timeout; continue the main loop */
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+ if (!uart0_test())
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+ continue;
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c = (char)uart0_get();
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xputc(c);
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- if (i == 0 && c != '$') continue; /* Find start of line */
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+ if (i == 0 && c != '$')
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+ continue; /* Find start of line */
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buff[i++] = c;
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- if (c == '\n') break; /* EOL */
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- if (i >= sz_buf) i = 0; /* Buffer overflow (abort this line) */
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+ if (c == '\n')
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+ break; /* EOL */
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+ if (i >= sz_buf)
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+ i = 0; /* Buffer overflow (abort this line) */
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}
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return i;
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@@ -133,9 +148,11 @@ void beep (UINT len, BYTE cnt)
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{
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while (cnt--) {
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BEEP_ON();
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- DELAY_MS(len);
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+ set_timer(beep, len);
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+ while(!timer_expired(beep)) {};
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BEEP_OFF();
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- DELAY_MS(len);
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+ set_timer(beep, len);
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+ while(!timer_expired(beep)) {};
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}
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}
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@@ -185,9 +202,11 @@ BYTE gp_val2 (
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n = db[0] - '0';
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- if (n >= 10) return 0;
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+ if (n >= 10)
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+ return 0;
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m = db[1] - '0';
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- if (m >= 10) return 0;
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+ if (m >= 10)
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+ return 0;
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return n * 10 + m;
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}
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@@ -205,7 +224,8 @@ time_t gp_rmctime ( /* Get GPS status from RMC sentence */
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time_t utc;
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- if (gp_comp(str, PSTR("$GPRMC"))) return 0; /* Not the RMC */
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+ if (gp_comp(str, PSTR("$GPRMC")))
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+ return 0; /* Not the RMC */
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p = gp_col(str, 2); /* Get status */
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if (!p || *p != 'A') {
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@@ -214,19 +234,22 @@ time_t gp_rmctime ( /* Get GPS status from RMC sentence */
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}
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p = gp_col(str, 1); /* Get h:m:s */
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- if (!p) return 0;
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+ if (!p)
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+ return 0;
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tmc.tm_hour = gp_val2(p);
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tmc.tm_min = gp_val2(p+2);
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tmc.tm_sec = gp_val2(p+4);
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p = gp_col(str, 9); /* Get y:m:d */
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- if (!p) return 0;
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+ if (!p)
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+ return 0;
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tmc.tm_mday = gp_val2(p);
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tmc.tm_mon = gp_val2(p+2) - 1;
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tmc.tm_year = gp_val2(p+4) + 100;
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utc = mktime(&tmc); /* Check time validity */
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- if (utc == -1) return 0;
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+ if (utc == -1)
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+ return 0;
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FLAGS |= F_GPSOK;
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return utc;
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@@ -238,14 +261,9 @@ time_t gp_rmctime ( /* Get GPS status from RMC sentence */
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static
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void ioinit (void)
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{
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- PORTB = 0b00000011; /* --zzzzHH */
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- DDRB = 0b00000011;
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-
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- PORTC = 0b00111101; /* --uuuuLH */
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- DDRC = 0b00000011;
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-
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- PORTD = 0b10111110; /* uLuuuuHz */
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- DDRD = 0b01000010;
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+ BUZZER_DDR |= BUZZER;
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+ GPS_DIS_DDR |= GPS_DIS;
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+ LEDR_DDR |= LEDR;
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OCR1A = F_CPU/8/100-1; /* Timer1: 100Hz interval (OC1A) */
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TCCR1B = _BV(WGM12) | _BV(CS11);
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@@ -259,6 +277,11 @@ void ioinit (void)
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/* uart1 (debug) */
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uart1_init();
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+
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+ I2C_init();
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+ expander_init(0, 0x00, 0x00); /* all as outputs */
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+ LCD_Initialize();
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+ LCD_Clear();
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sei();
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}
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@@ -276,7 +299,6 @@ int main (void)
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time_t utc;
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FRESULT res;
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-
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ioinit();
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xdev_out(uart1_put);
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@@ -287,14 +309,17 @@ int main (void)
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/* Wait for supply voltage stabled */
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while (FLAGS & F_LVD) {};
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- DELAY_MS(500);
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- if (FLAGS & F_LVD) continue;
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- if (disk_status(0) & STA_NODISK) continue;
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+ _delay_ms(500);
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+ if (FLAGS & F_LVD)
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+ continue;
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+ if (disk_status(0) & STA_NODISK)
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+ continue;
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res = f_mount(&Fatfs, "", 1);
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if (res != FR_OK) {
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xprintf(PSTR("FS error %u\r\n"), res);
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- err = 2; continue;
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+ err = 2;
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+ continue;
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}
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xputs(PSTR("FS Ok\r\n"));
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beep(50, 1); /* 1 beep */
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@@ -302,14 +327,16 @@ int main (void)
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/* Initialize GPS receiver */
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GPS_ON(); /* GPS power on */
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FLAGS |= F_POW;
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- DELAY_MS(300); /* Delay */
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+ _delay_ms(300); /* Delay */
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uart0_init(); /* Enable UART */
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// xfprintf(uart0_put, PSTR("$PSRF106,21*0F\r\n")); /* Send initialization command (depends on the receiver) */
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utc = 0;
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- for (;;) {
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+ for (;;) { /* main loop */
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+ gettemp();
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len = get_line(Line, sizeof Line); /* Receive a line from GPS receiver */
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- if (!len) break; /* Brownout? */
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+ if (!len) continue;
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+ if (FLAGS & F_LVD) break; /* brownout */
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if (!utc) {
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utc = gp_rmctime(Line); /* Get time in UTC from a valid RMC sentence */
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@@ -322,7 +349,9 @@ int main (void)
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|| f_lseek(&File1, f_size(&File1)) /* Append mode */
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|| f_write(&File1, "\r\n", 2, &bw)) /* Put a blank line as start marker */
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{
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- utc = 0; err = 2; break; /* Failed to start logging */
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+ utc = 0;
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+ err = 2;
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+ break; /* Failed to start logging */
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}
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beep(50, 2); /* Two beeps. Start logging. */
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}
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@@ -330,11 +359,13 @@ int main (void)
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gp_rmctime(Line);
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f_write(&File1, Line, len, &bw);
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if (bw != len) {
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- err = 3; break;
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+ err = 3;
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+ break;
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}
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if (FLAGS & F_SYNC) {
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if (f_sync(&File1)) {
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- err = 2; break;
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+ err = 2;
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+ break;
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}
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FLAGS &= ~F_SYNC;
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}
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@@ -347,9 +378,11 @@ int main (void)
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FLAGS &= ~F_POW;
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/* Close file */
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- if (utc && f_close(&File1)) err = 2;
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+ if (utc && f_close(&File1))
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+ err = 2;
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disk_ioctl(0, CTRL_POWER_OFF, 0);
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- if (!err) beep(500, 1); /* Long beep on file close succeeded */
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+ if (!err)
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+ beep(500, 1); /* Long beep on file close succeeded */
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}
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}
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k4be