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Ignore whitespace Rev 729 → Rev 730

/Transportables_Koptertool/trunk/lipo.c
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. *
* *
*****************************************************************************/
 
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
 
#include "main.h" // LEDs
#include "timer.h" // Keys
#include "lcd.h"
#include "lipo.h"
 
 
volatile uint8_t AD_Ready = 0;
volatile uint8_t AD_Channel = 0;
volatile uint16_t AD_Val[4];
 
volatile uint8_t AD_WarnLevel;
volatile uint8_t AD_Warn = 0;
 
 
//*****************************************************************************
//
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;
}
 
}
 
//*****************************************************************************
//
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);
}
 
//*****************************************************************************
//
void lipo (void)
{
uint8_t i;
lcd_cls ();
lcd_printp_at (0, 0, PSTR("LiPo Display"), 0);
lcd_printpns_at (0, 7, PSTR(" Exit"), 0);
 
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);
 
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);
}