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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 730 | woggle | 1 | /***************************************************************************** |
| 2 | * Copyright (C) 2009 Peter "woggle" Mack, mac@denich.net * |
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| 3 | * * |
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| 4 | * This program is free software; you can redistribute it and/or modify * |
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| 5 | * it under the terms of the GNU General Public License as published by * |
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| 6 | * the Free Software Foundation; either version 2 of the License. * |
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| 7 | * * |
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| 8 | * This program is distributed in the hope that it will be useful, * |
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| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 11 | * GNU General Public License for more details. * |
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| 12 | * * |
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| 13 | * You should have received a copy of the GNU General Public License * |
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| 14 | * along with this program; if not, write to the * |
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| 15 | * Free Software Foundation, Inc., * |
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| 16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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| 17 | * * |
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| 18 | *****************************************************************************/ |
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| 19 | |||
| 20 | #include <avr/io.h> |
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| 21 | #include <avr/interrupt.h> |
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| 22 | #include <avr/pgmspace.h> |
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| 23 | #include <util/delay.h> |
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| 24 | |||
| 25 | #include "main.h" // LEDs |
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| 26 | #include "timer.h" // Keys |
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| 27 | #include "lcd.h" |
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| 28 | #include "lipo.h" |
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| 29 | |||
| 30 | |||
| 31 | volatile uint8_t AD_Ready = 0; |
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| 32 | volatile uint8_t AD_Channel = 0; |
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| 33 | volatile uint16_t AD_Val[4]; |
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| 34 | |||
| 35 | volatile uint8_t AD_WarnLevel; |
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| 36 | volatile uint8_t AD_Warn = 0; |
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| 37 | |||
| 38 | |||
| 39 | //***************************************************************************** |
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| 40 | // |
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| 41 | ISR(ADC_vect) |
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| 42 | { |
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| 43 | // LED1_TOGGLE; |
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| 44 | AD_Val[AD_Channel] = ADC; |
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| 45 | if (AD_Val[AD_Channel] <= (AD_WarnLevel * 20)) |
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| 46 | { |
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| 47 | AD_Warn |= (1 << AD_Channel); |
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| 48 | } |
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| 49 | AD_Channel++; |
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| 50 | AD_Channel &= 0x03; |
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| 51 | ADMUX = (ADMUX & 0xe0) | AD_Channel; |
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| 52 | if (AD_Channel) |
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| 53 | { |
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| 54 | ADCSRA |= (1 << ADSC); |
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| 55 | } |
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| 56 | else |
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| 57 | { |
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| 58 | AD_Ready = 1; |
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| 59 | } |
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| 60 | |||
| 61 | } |
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| 62 | |||
| 63 | //***************************************************************************** |
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| 64 | // |
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| 65 | void ADC_Init(void) |
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| 66 | { |
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| 67 | DIDR0 = 0x0f; // disable digital inputs on PA0-3 |
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| 68 | ADMUX = (1 << REFS1) | (1 << REFS0); // internal 2.56 V ref. |
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| 69 | ADCSRB = 0; // free running mode |
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| 70 | // enable ADC, start conversion, auto trigger, enable interrupt, prescaler = 128 |
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| 71 | ADCSRA = (1 << ADEN) | (1 << ADSC) | (0 << ADATE) | (1 << ADIE) | (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0); |
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| 72 | } |
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| 73 | |||
| 74 | //***************************************************************************** |
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| 75 | // |
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| 76 | void lipo (void) |
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| 77 | { |
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| 78 | uint8_t i; |
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| 79 | |||
| 80 | lcd_cls (); |
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| 81 | lcd_printp_at (0, 0, PSTR("LiPo Display"), 0); |
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| 82 | lcd_printpns_at (0, 7, PSTR(" Exit"), 0); |
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| 83 | |||
| 84 | lcd_printp_at (0, 2, PSTR("Cell 1:"), 0); |
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| 85 | lcd_printp_at (0, 3, PSTR("Cell 2:"), 0); |
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| 86 | lcd_printp_at (0, 4, PSTR("Cell 3:"), 0); |
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| 87 | lcd_printp_at (0, 5, PSTR("Cell 4:"), 0); |
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| 88 | |||
| 89 | do |
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| 90 | { |
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| 91 | if (AD_Ready) |
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| 92 | { |
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| 93 | for (i = 0; i < 4; i++) |
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| 94 | { |
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| 95 | //write_ndigit_number_u (0, 2 + i, AD_Val[i], 4, 0); |
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| 96 | //write_ndigit_number_u_10th (6, 2 + i, AD_Val[i] >> 1, 3, 0); |
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| 97 | write_ndigit_number_u_100th (10, 2 + i, AD_Val[i] >> 1, 10, 0); |
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| 98 | } |
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| 99 | AD_Ready = 0; |
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| 100 | ADCSRA |= (1 << ADSC); |
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| 101 | } |
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| 102 | } |
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| 103 | while (!get_key_press (1 << KEY_ESC)); |
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| 104 | get_key_press(KEY_ALL); |
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| 105 | } |