0,0 → 1,105 |
/***************************************************************************** |
* Copyright (C) 2009 Peter "woggle" Mack, mac@denich.net * |
* * |
* This program is free software; you can redistribute it and/or modify * |
* it under the terms of the GNU General Public License as published by * |
* the Free Software Foundation; either version 2 of the License. * |
* * |
* This program is distributed in the hope that it will be useful, * |
* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
* GNU General Public License for more details. * |
* * |
* You should have received a copy of the GNU General Public License * |
* along with this program; if not, write to the * |
* Free Software Foundation, Inc., * |
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
* * |
*****************************************************************************/ |
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#include <avr/io.h> |
#include <avr/interrupt.h> |
#include <avr/pgmspace.h> |
#include <util/delay.h> |
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#include "main.h" // LEDs |
#include "timer.h" // Keys |
#include "lcd.h" |
#include "lipo.h" |
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volatile uint8_t AD_Ready = 0; |
volatile uint8_t AD_Channel = 0; |
volatile uint16_t AD_Val[4]; |
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volatile uint8_t AD_WarnLevel; |
volatile uint8_t AD_Warn = 0; |
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//***************************************************************************** |
// |
ISR(ADC_vect) |
{ |
// LED1_TOGGLE; |
AD_Val[AD_Channel] = ADC; |
if (AD_Val[AD_Channel] <= (AD_WarnLevel * 20)) |
{ |
AD_Warn |= (1 << AD_Channel); |
} |
AD_Channel++; |
AD_Channel &= 0x03; |
ADMUX = (ADMUX & 0xe0) | AD_Channel; |
if (AD_Channel) |
{ |
ADCSRA |= (1 << ADSC); |
} |
else |
{ |
AD_Ready = 1; |
} |
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} |
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//***************************************************************************** |
// |
void ADC_Init(void) |
{ |
DIDR0 = 0x0f; // disable digital inputs on PA0-3 |
ADMUX = (1 << REFS1) | (1 << REFS0); // internal 2.56 V ref. |
ADCSRB = 0; // free running mode |
// enable ADC, start conversion, auto trigger, enable interrupt, prescaler = 128 |
ADCSRA = (1 << ADEN) | (1 << ADSC) | (0 << ADATE) | (1 << ADIE) | (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0); |
} |
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//***************************************************************************** |
// |
void lipo (void) |
{ |
uint8_t i; |
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lcd_cls (); |
lcd_printp_at (0, 0, PSTR("LiPo Display"), 0); |
lcd_printpns_at (0, 7, PSTR(" Exit"), 0); |
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lcd_printp_at (0, 2, PSTR("Cell 1:"), 0); |
lcd_printp_at (0, 3, PSTR("Cell 2:"), 0); |
lcd_printp_at (0, 4, PSTR("Cell 3:"), 0); |
lcd_printp_at (0, 5, PSTR("Cell 4:"), 0); |
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do |
{ |
if (AD_Ready) |
{ |
for (i = 0; i < 4; i++) |
{ |
//write_ndigit_number_u (0, 2 + i, AD_Val[i], 4, 0); |
//write_ndigit_number_u_10th (6, 2 + i, AD_Val[i] >> 1, 3, 0); |
write_ndigit_number_u_100th (10, 2 + i, AD_Val[i] >> 1, 10, 0); |
} |
AD_Ready = 0; |
ADCSRA |= (1 << ADSC); |
} |
} |
while (!get_key_press (1 << KEY_ESC)); |
get_key_press(KEY_ALL); |
} |