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"
59 #include "uart_termio.h"
60 #include "shell_strutl.h"
61 #include "term_shell.h"
66 #if defined(pic18f23k22) || defined(pic18f24k22) || defined(pic18f25k22) || defined(pic18f26k22)
67 //#pragma stack 0x200 256 // Set stack size to 256bytes.
68 #pragma config FOSC=INTIO67,BORV=190,BOREN=ON,PWRTEN=ON
69 #pragma config WDTEN=ON,WDTPS=32768
70 #pragma config PBADEN=OFF,MCLRE=EXTMCLR,STVREN=ON,LVP=OFF,DEBUG=ON,XINST=ON
71 //#pragma config PBADEN=OFF,MCLRE=EXTMCLR,STVREN=ON,LVP=OFF//,XINST=ON
72 #pragma config CP0=OFF,CP1=OFF,CPB=OFF,CPD=OFF
73 #pragma config WRT0=OFF,WRT1=OFF,WRTB=OFF,WRTC=OFF,WRTD=OFF
74 #pragma config EBTR0=OFF,EBTR1=OFF,EBTRB=OFF
76 // For 4xK20 or 2xK20 Series
77 #if defined(pic18f43k20) || defined(pic18f44k20) || defined(pic18f45k20) || defined(pic18f46k20) || \
78 defined(pic18f23k20) || defined(pic18f24k20) || defined(pic18f25k20) || defined(pic18f26k20) || \
79 defined(_18F43K20) || defined(_18F44K20) || defined(_18F45K20) || defined(_18F46K20) || \
80 defined(_18F23K20) || defined(_18F24K20) || defined(_18F25K20) || defined(_18F26K20)
83 #pragma stack 0x200 256
86 #pragma config FOSC=HS,FCMEN=ON,PWRT=ON,BOREN=NOSLP,BORV=27, \
87 WDTEN=ON,WDTPS=32768,PBADEN=OFF,HFOFST=OFF,LPT1OSC=OFF, \
88 MCLRE=ON,STVREN=ON,DEBUG=ON,LVP=OFF, \
96 unsigned char stereoflag;
97 unsigned char tuneflag;
98 unsigned char cnrlevel;
100 unsigned int batlevel_6955;
101 unsigned int battlevel;
102 unsigned char ui_idlekey;
103 unsigned char ui_idlepad;
106 unsigned char pollkeybuf[33];
108 //#define _LCD_DEBUG 1
110 void TMR0_handler(void)
112 SIGHANDLER(TMR0_handler)
117 T0CONbits.TMR0ON = 0;
119 // Clear interrupt flag
120 // INTCONbits.TMR0IF = 0;
121 INTCONbits.TMR0IE = 0;;
126 * Interrupt wake up every 1ms.
129 void TMR1_Handler(void)
131 SIGHANDLER(TMR1_Handler)
139 void TMR3_Handler(void)
141 SIGHANDLER(TMR3_Handler)
150 void EXINT_Handler(void)
152 SIGHANDLER(EXINT_Handler)
155 INTCONbits.INT0IE = 0;
156 INTCONbits.INT0IF = 0;
157 INTCON3bits.INT1IF = 0;
158 INTCON3bits.INT2IF = 0;
159 INTCON3bits.INT1IE = 0;
160 INTCON3bits.INT2IE = 0;
164 void RBIF_handler(void)
166 SIGHANDLER(RBIF_handler)
169 if(IOCBbits.IOCB4 != 0) {
176 void EEPROM_handler(void)
178 SIGHANDLER(EEPROM_handler)
183 // if(chk_powerbutton(0, 0) != 0) { // If pressed on
189 void INADC_handler(void)
191 SIGHANDLER(INADC_handler)
197 // battlevel = adc_rawtobatt(a);
202 void I2C_handler(void)
204 SIGHANDLER(I2C_handler)
210 void I2CBus_handler(void)
212 SIGHANDLER(I2CBus_handler)
219 void UART_R_Handler(void)
221 SIGHANDLER(UART_R_Handler)
229 DEF_INTLOW(intlow_handler)
230 DEF_HANDLER(SIG_TMR0, TMR0_handler)
231 DEF_HANDLER(SIG_INT0, EXINT_Handler)
232 // DEF_HANDLER(SIG_TMR3, TMR3_Handler)
235 DEF_INTHIGH(inthigh_handler)
236 DEF_HANDLER(SIG_RBIF, RBIF_handler)
237 DEF_HANDLER(SIG_RCIF, UART_R_handler)
238 // DEF_HANDLER(SIG_TMR1, TMR1_Handler)
239 // DEF_HANDLER(SIG_INT1, EXINT_Handler)
240 DEF_HANDLER(SIG_INT2, EXINT_Handler)
241 DEF_HANDLER(SIG_AD, INADC_handler)
242 //DEF_HANDLER(SIG_SSP, I2C_handler)
243 //DEF_HANDLER(SIG_BCOL, I2CBus_handler)
246 void interrupt low_priority intlow_handler(void)
248 if(INTCONbits.TMR0IF) TMR0_handler();
249 if(INTCONbits.INT0IF) EXINT_Handler();
250 // if(PIR1bits.TMR1IF) TMR1_Handler();
253 void interrupt high_priority inthigh_handler(void)
255 if(INTCONbits.RBIF) RBIF_handler();
256 if(PIR1bits.TMR1IF) TMR1_Handler();
257 if(PIR1bits.RC1IF) UART_R_Handler();
258 // if(PIR2bits.TMR3IF) TMR3_Handler();
259 // if(INTCON3bits.INT1IF) EXINT_Handler();
260 // if(INTCON3bits.INT2IF) EXINT_Handler();
261 if(PIR1bits.ADIF) INADC_handler();
263 // if(PIR1bits.SSPIF) I2C_handler();
276 // idle_time_ms(100);
277 printhelp_2lines("Low battery X)", "Press key to suspend");
285 unsigned char pbutton;
286 unsigned char reset_status;
288 unsigned char lvcount = 0;
289 unsigned char dispf = 0xff;
293 OSCCON = (0x80 & 0b11111100) | 0b00111000;
294 // OSCCON = (0x80 & 0b11111100) | 0b00110010; // 8MHz
299 reset_status = chk_reset();
300 idle_time_ms(300); // Wait for setup.
301 WDTCONbits.SWDTEN = 0; // WDT OFF.
302 switch(reset_status){
305 shutdown(0); // Save and halt on BOR.
307 case RESET_SOFTWARE: //
309 pbutton = chk_powerbutton();
310 if(pbutton == 0) shutdown(0); // Not-Pressed power-button -> shutdown( not save).
313 case RESET_WDT: // Workaround random reset.
319 WDTCONbits.SWDTEN = 1; // WDT ON.
323 acm1602_init(LCD_I2CADDR, 1); //Init LCD
324 lcd_setbacklight(0xff, 255);
327 /* Push default parameters to AKC6955*/
336 ui_idlekey = setup.ui_idlecount / 92;
337 ui_idlepad = setup.ui_idlecount % 23;
342 if(battlevel < 340) { // 3.4V
346 acm1602_resume(LCD_I2CADDR);
349 lowbatt(); //Zap 4Times on LowVoltage.
356 term_shell(0); // Steel Shell
357 for(i = 0; i < 4; i++) {
358 c = pollkey_single_timeout(ui_idlekey, 1); // 23*41 = 943ms
360 if(c != charcode_null) {
363 acm1602_resume(LCD_I2CADDR);
373 dispf = setfreq_renc_updown(dispf);
375 dispf = backlight_dec(dispf);
376 if(dispf != 0) update_display();
377 if(ui_idlepad != 0) idle_time_ms(ui_idlepad);