3 * Config & Main routine.
4 * Copyright (C) 2013-06-10 K.Ohta <whatisthis.sowhat ai gmail.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2,
10 * or (at your option) any later version.
11 * This library / program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14 * See the GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this library; see the file COPYING. If not, write to the
18 * Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
21 * As a special exception, if you link this(includeed from sdcc) library
22 * with other files, some of which are compiled with SDCC,
23 * to produce an executable, this library does not by itself cause
24 * the resulting executable to be covered by the GNU General Public License.
25 * This exception does not however invalidate any other reasons why
26 * the executable file might be covered by the GNU General Public License.
36 #include <pic18fregs.h> /* ONLY FOR PIC18x */
48 #include "lcd_acm1602.h"
55 #include "i2c_eeprom.h"
56 #include "backlight.h"
61 #if defined(pic18f23k22) || defined(pic18f24k22) || defined(pic18f25k22) || defined(pic18f26k22)
62 //#pragma stack 0x200 256 // Set stack size to 256bytes.
63 #pragma config FOSC=INTIO67,BORV=190,BOREN=ON,PWRTEN=ON
64 #pragma config WDTEN=ON,WDTPS=32768
65 #pragma config PBADEN=OFF,MCLRE=EXTMCLR,STVREN=ON,LVP=OFF,DEBUG=ON,XINST=ON
66 //#pragma config PBADEN=OFF,MCLRE=EXTMCLR,STVREN=ON,LVP=OFF//,XINST=ON
67 #pragma config CP0=OFF,CP1=OFF,CPB=OFF,CPD=OFF
68 #pragma config WRT0=OFF,WRT1=OFF,WRTB=OFF,WRTC=OFF,WRTD=OFF
69 #pragma config EBTR0=OFF,EBTR1=OFF,EBTRB=OFF
71 // For 4xK20 or 2xK20 Series
72 #if defined(pic18f43k20) || defined(pic18f44k20) || defined(pic18f45k20) || defined(pic18f46k20) || \
73 defined(pic18f23k20) || defined(pic18f24k20) || defined(pic18f25k20) || defined(pic18f26k20) || \
74 defined(_18F43K20) || defined(_18F44K20) || defined(_18F45K20) || defined(_18F46K20) || \
75 defined(_18F23K20) || defined(_18F24K20) || defined(_18F25K20) || defined(_18F26K20)
78 #pragma stack 0x200 256
81 #pragma config FOSC=HS,FCMEN=ON,PWRT=ON,BOREN=NOSLP,BORV=27, \
82 WDTEN=ON,WDTPS=32768,PBADEN=OFF,HFOFST=OFF,LPT1OSC=OFF, \
83 MCLRE=ON,STVREN=ON,DEBUG=ON, \
89 unsigned char stereoflag;
90 unsigned char tuneflag;
91 unsigned char cnrlevel;
93 unsigned int batlevel_6955;
94 unsigned int battlevel;
97 unsigned char pollkeybuf[33];
99 //#define _LCD_DEBUG 1
101 void TMR0_handler(void)
103 SIGHANDLER(TMR0_handler)
108 T0CONbits.TMR0ON = 0;
110 // Clear interrupt flag
111 // INTCONbits.TMR0IF = 0;
112 INTCONbits.TMR0IE = 0;;
117 * Interrupt wake up every 1ms.
120 void TMR3_Handler(void)
122 SIGHANDLER(TMR3_Handler)
127 T3CONbits.TMR3ON = 0;
131 void EXINT_Handler(void)
133 SIGHANDLER(EXINT_Handler)
136 INTCONbits.INT0IE = 0;
137 INTCONbits.INT0IF = 0;
138 INTCON3bits.INT1IF = 0;
139 INTCON3bits.INT2IF = 0;
140 INTCON3bits.INT1IE = 0;
141 INTCON3bits.INT2IE = 0;
145 void RBIF_handler(void)
147 SIGHANDLER(RBIF_handler)
151 // if(chk_powerbutton(0, 0) != 0) { // If pressed on
156 void EEPROM_handler(void)
158 SIGHANDLER(EEPROM_handler)
163 // if(chk_powerbutton(0, 0) != 0) { // If pressed on
169 void INADC_handler(void)
171 SIGHANDLER(INADC_handler)
177 // battlevel = adc_rawtobatt(a);
182 void I2C_handler(void)
184 SIGHANDLER(I2C_handler)
190 void I2CBus_handler(void)
192 SIGHANDLER(I2CBus_handler)
201 DEF_INTLOW(intlow_handler)
202 DEF_HANDLER(SIG_TMR0, TMR0_handler)
203 DEF_HANDLER(SIG_INT0, EXINT_Handler)
204 // DEF_HANDLER(SIG_TMR3, I2C_handler)
207 DEF_INTHIGH(inthigh_handler)
208 DEF_HANDLER(SIG_RBIF, RBIF_handler)
209 DEF_HANDLER(SIG_EEIF, EEPROM_handler)
210 DEF_HANDLER(SIG_TMR3, TMR3_Handler)
211 DEF_HANDLER(SIG_INT1, EXINT_Handler)
212 DEF_HANDLER(SIG_INT2, EXINT_Handler)
213 DEF_HANDLER(SIG_AD, INADC_handler)
214 //DEF_HANDLER(SIG_SSP, I2C_handler)
215 //DEF_HANDLER(SIG_BCOL, I2CBus_handler)
218 void interrupt low_priority intlow_handler(void)
220 if(INTCONbits.TMR0IF) TMR0_handler();
221 if(INTCONbits.INT0IF) EXINT_Handler();
224 void interrupt high_priority inthigh_handler(void)
226 if(INTCONbits.RBIF) RBIF_handler();
227 if(PIR2bits.EEIF) EEPROM_handler();
228 if(PIR2bits.TMR3IF) TMR3_Handler();
229 // if(INTCONbits.TMR0IF) TMR0_handler();
230 if(INTCON3bits.INT1IF) EXINT_Handler();
231 if(INTCON3bits.INT2IF) EXINT_Handler();
232 if(PIR1bits.ADIF) INADC_handler();
234 // if(PIR1bits.SSPIF) I2C_handler();
247 // idle_time_ms(100);
248 printhelp_2lines("Low battery X)", "Press key to suspend");
255 unsigned char pbutton;
256 unsigned char reset_status;
258 unsigned char lvcount = 0;
259 unsigned char dispf = 0xff;
261 OSCCON = (0x80 & 0b11111100) | 0b00111000;
262 // OSCCON = (0x80 & 0b11111100) | 0b00110010; // 8MHz
267 reset_status = chk_reset();
268 idle_time_ms(300); // Wait for setup.
269 WDTCONbits.SWDTEN = 0; // WDT OFF.
270 switch(reset_status){
273 shutdown(0); // Save and halt on BOR.
275 case RESET_SOFTWARE: //
277 pbutton = chk_powerbutton();
278 if(pbutton == 0) shutdown(0); // Not-Pressed power-button -> shutdown( not save).
281 case RESET_WDT: // Workaround random reset.
287 WDTCONbits.SWDTEN = 1; // WDT ON.
292 acm1602_init(LCD_I2CADDR, 1); //Init LCD
293 lcd_setbacklight(0xff, 255);
296 /* Push default parameters to AKC6955*/
305 if(battlevel <= 340) { // 3.4V
309 acm1602_resume(LCD_I2CADDR);
312 lowbatt(); //Zap 4Times on LowVoltage.
318 c = pollkey_single_timeout(41, 1); // 23*41 = 943ms
320 if(c != charcode_null) {
323 acm1602_resume(LCD_I2CADDR);
330 dispf = backlight_dec(dispf); // 48ms
331 if(dispf != 0) update_display();
332 idle_time_ms(9); // Pad 9ms, 1Loop = 1000ms.