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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1471 | - | 1 | /***************************************************************************** |
| 2 | * Copyright (C) 2008 Thomas Kaiser, thomas@ft-fanpage.de * |
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| 3 | * Copyright (C) 2009 Peter "woggle" Mack, mac@denich.net * |
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| 4 | * based on the key handling by Peter Dannegger * |
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| 5 | * see www.mikrocontroller.net * |
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| 6 | * Copyright (C) 2011 Christian "Cebra" Brandtner, brandtner@brandtner.net * |
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| 7 | * Copyright (C) 2011 Harald Bongartz * |
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| 8 | * * |
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| 9 | * This program is free software; you can redistribute it and/or modify * |
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| 10 | * it under the terms of the GNU General Public License as published by * |
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| 11 | * the Free Software Foundation; either version 2 of the License. * |
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| 12 | * * |
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| 13 | * This program is distributed in the hope that it will be useful, * |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 16 | * GNU General Public License for more details. * |
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| 17 | * * |
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| 18 | * You should have received a copy of the GNU General Public License * |
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| 19 | * along with this program; if not, write to the * |
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| 20 | * Free Software Foundation, Inc., * |
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| 21 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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| 22 | * * |
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| 23 | * * |
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| 24 | * Credits to: * |
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| 25 | * Holger Buss & Ingo Busker from mikrokopter.de for the MK project + SVN * |
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| 26 | * http://www.mikrokopter.de * |
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| 27 | * Gregor "killagreg" Stobrawa for his version of the MK code * |
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| 28 | * Thomas Kaiser "thkais" for the original project. See * |
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| 29 | * http://www.ft-fanpage.de/mikrokopter/ * |
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| 30 | * http://forum.mikrokopter.de/topic-4061-1.html * |
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| 31 | * Claas Anders "CaScAdE" Rathje for providing the font and his C-OSD code * |
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| 32 | * http://www.mylifesucks.de/oss/c-osd/ * |
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| 33 | * Harald Bongartz "HaraldB" for providing his Ideas and Code for usibility* |
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| 34 | *****************************************************************************/ |
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| 35 | |||
| 36 | |||
| 37 | #include "cpu.h" |
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| 38 | #include <avr/io.h> |
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| 39 | #include <util/delay.h> |
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| 40 | #include <avr/interrupt.h> |
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| 41 | #include <inttypes.h> |
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| 42 | #include <stdlib.h> |
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| 43 | #include <avr/pgmspace.h> |
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| 44 | #include "lcd.h" |
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| 45 | #include "lipo.h" |
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| 46 | #include "eeprom.h" |
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| 47 | |||
| 48 | // Global variables |
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| 49 | double accumulator = 0; //!< Accumulated 10-bit samples |
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| 50 | double Vin = 0; //!< 16-bit float number result |
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| 51 | short temp = 0; //!< Temporary variable |
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| 52 | short samples = 0; //!< Number of conversions |
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| 53 | uint16_t volt_avg = 0; |
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| 54 | |||
| 55 | |||
| 56 | //! ADC interrupt routine |
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| 57 | |||
| 58 | ISR (ADC_vect) |
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| 59 | { |
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| 60 | accumulator += ADCW; |
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| 61 | samples++; |
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| 62 | if(samples>4095) |
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| 63 | { |
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| 64 | oversampled(); |
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| 65 | } |
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| 66 | } |
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| 67 | |||
| 68 | |||
| 69 | |||
| 70 | //-------------------------------------------------------------- |
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| 71 | // |
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| 72 | void ADC_Init (void) |
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| 73 | { |
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| 74 | ADMUX = (0<<REFS1) | (1<<REFS0); // externe 5V Referenzspannung nutzen |
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| 75 | ADMUX = (ADMUX & ~(0x1F)) | (1 & 0x1F); // ADC1 verwenden |
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| 76 | ADCSRA = (1<<ADEN)|(1<<ADIE)|(1<<ADSC)|(1<<ADATE)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0); // Prescaler 128, Freilaufend, Interrupte frei |
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| 77 | } |
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| 78 | |||
| 79 | |||
| 80 | /*! Error compensation, Scaling 16-bit result, Rounding up |
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| 81 | , Calculate 16-bit result, Resets variables |
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| 82 | |||
| 83 | Quelle AVR121: Enhancing ADC resolution by versampling |
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| 84 | |||
| 85 | */ |
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| 86 | void oversampled(void) |
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| 87 | { |
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| 88 | cli(); |
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| 89 | accumulator += Lipo_UOffset; //5150 Offset error compensation |
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| 90 | |||
| 91 | // accumulator *= 0.9993; // Gain error compensation |
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| 92 | accumulator *= 0.9600; //0.9800 Gain error compensation |
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| 93 | temp=(int)accumulator%64; |
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| 94 | accumulator/=64; // Scaling the answer |
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| 95 | if(temp>=32) |
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| 96 | { |
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| 97 | accumulator += 1; // Round up |
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| 98 | } |
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| 99 | |||
| 100 | // Vin = (accumulator/65536)*4.910; // Calculating 16-bit result |
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| 101 | |||
| 102 | Vin =accumulator/7.5; |
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| 103 | volt_avg = Vin; |
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| 104 | // write_ndigit_number_u(0, 3, Vin, 5, 0); |
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| 105 | // write_ndigit_number_u(0, 4, volt_avg, 5, 0); |
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| 106 | samples = 0; |
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| 107 | accumulator = 0; |
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| 108 | |||
| 109 | sei(); |
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| 110 | } |
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| 111 | |||
| 112 | |||
| 113 | void show_Lipo(void) |
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| 114 | { |
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| 115 | |||
| 116 | uint16_t Balken = 0; |
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| 117 | |||
| 118 | |||
| 119 | lcd_rect(103,2,1,3,1); |
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| 120 | if (volt_avg < 320) |
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| 121 | { |
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| 122 | Balken = 0; |
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| 123 | lcd_frect(106 + Balken-1, 2, 19-Balken, 3, 0); // löschen |
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| 124 | } |
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| 125 | |||
| 126 | |||
| 127 | if (PKT_Accutyp == true) //LiPO Akku |
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| 128 | { |
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| 129 | lcd_rect(104, 0, 23, 7, 1); // Rahmen |
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| 130 | if (volt_avg >= 420) Balken = 19; |
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| 131 | if ((volt_avg > 320) && (volt_avg < 420)) Balken = (volt_avg-320)/5; |
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| 132 | lcd_frect(106 + Balken+1, 2, 19-Balken, 3, 0); // löschen |
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| 133 | } |
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| 134 | |||
| 135 | if (PKT_Accutyp == false) // LiON Akku |
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| 136 | { |
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| 137 | lcd_rect(104, 0, 22, 7, 1); // Rahmen |
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| 138 | if (volt_avg >= 410) Balken = 18; |
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| 139 | if ((volt_avg > 320) && (volt_avg < 410)) Balken = ((volt_avg-320)/5); |
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| 140 | lcd_frect(106 + Balken+1, 2, 18-Balken, 3, 0); // löschen |
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| 141 | } |
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| 142 | |||
| 143 | |||
| 144 | if (Balken > 0) lcd_frect(106, 2, Balken, 3, 1); // Füllung |
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| 145 | |||
| 146 | } |
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| 147 | |||
| 148 | |||
| 149 |