| 0,0 → 1,149 |
|---|
| /***************************************************************************** |
| * Copyright (C) 2008 Thomas Kaiser, thomas@ft-fanpage.de * |
| * Copyright (C) 2009 Peter "woggle" Mack, mac@denich.net * |
| * based on the key handling by Peter Dannegger * |
| * see www.mikrocontroller.net * |
| * Copyright (C) 2011 Christian "Cebra" Brandtner, brandtner@brandtner.net * |
| * Copyright (C) 2011 Harald Bongartz * |
| * * |
| * 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. * |
| * * |
| * * |
| * Credits to: * |
| * Holger Buss & Ingo Busker from mikrokopter.de for the MK project + SVN * |
| * http://www.mikrokopter.de * |
| * Gregor "killagreg" Stobrawa for his version of the MK code * |
| * Thomas Kaiser "thkais" for the original project. See * |
| * http://www.ft-fanpage.de/mikrokopter/ * |
| * http://forum.mikrokopter.de/topic-4061-1.html * |
| * Claas Anders "CaScAdE" Rathje for providing the font and his C-OSD code * |
| * http://www.mylifesucks.de/oss/c-osd/ * |
| * Harald Bongartz "HaraldB" for providing his Ideas and Code for usibility* |
| *****************************************************************************/ |
| |
| |
| #include "cpu.h" |
| #include <avr/io.h> |
| #include <util/delay.h> |
| #include <avr/interrupt.h> |
| #include <inttypes.h> |
| #include <stdlib.h> |
| #include <avr/pgmspace.h> |
| #include "lcd.h" |
| #include "lipo.h" |
| #include "eeprom.h" |
| |
| // Global variables |
| double accumulator = 0; //!< Accumulated 10-bit samples |
| double Vin = 0; //!< 16-bit float number result |
| short temp = 0; //!< Temporary variable |
| short samples = 0; //!< Number of conversions |
| uint16_t volt_avg = 0; |
| |
| |
| //! ADC interrupt routine |
| |
| ISR (ADC_vect) |
| { |
| accumulator += ADCW; |
| samples++; |
| if(samples>4095) |
| { |
| oversampled(); |
| } |
| } |
| |
| |
| |
| //-------------------------------------------------------------- |
| // |
| void ADC_Init (void) |
| { |
| ADMUX = (0<<REFS1) | (1<<REFS0); // externe 5V Referenzspannung nutzen |
| ADMUX = (ADMUX & ~(0x1F)) | (1 & 0x1F); // ADC1 verwenden |
| ADCSRA = (1<<ADEN)|(1<<ADIE)|(1<<ADSC)|(1<<ADATE)|(1<<ADPS2)|(1<<ADPS1)|(1<<ADPS0); // Prescaler 128, Freilaufend, Interrupte frei |
| } |
| |
| |
| /*! Error compensation, Scaling 16-bit result, Rounding up |
| , Calculate 16-bit result, Resets variables |
| |
| Quelle AVR121: Enhancing ADC resolution by versampling |
| |
| */ |
| void oversampled(void) |
| { |
| cli(); |
| accumulator += Lipo_UOffset; //5150 Offset error compensation |
| |
| // accumulator *= 0.9993; // Gain error compensation |
| accumulator *= 0.9600; //0.9800 Gain error compensation |
| temp=(int)accumulator%64; |
| accumulator/=64; // Scaling the answer |
| if(temp>=32) |
| { |
| accumulator += 1; // Round up |
| } |
| |
| // Vin = (accumulator/65536)*4.910; // Calculating 16-bit result |
| |
| Vin =accumulator/7.5; |
| volt_avg = Vin; |
| // write_ndigit_number_u(0, 3, Vin, 5, 0); |
| // write_ndigit_number_u(0, 4, volt_avg, 5, 0); |
| samples = 0; |
| accumulator = 0; |
| |
| sei(); |
| } |
| |
| |
| void show_Lipo(void) |
| { |
| |
| uint16_t Balken = 0; |
| |
| |
| lcd_rect(103,2,1,3,1); |
| if (volt_avg < 320) |
| { |
| Balken = 0; |
| lcd_frect(106 + Balken-1, 2, 19-Balken, 3, 0); // löschen |
| } |
| |
| |
| if (PKT_Accutyp == true) //LiPO Akku |
| { |
| lcd_rect(104, 0, 23, 7, 1); // Rahmen |
| if (volt_avg >= 420) Balken = 19; |
| if ((volt_avg > 320) && (volt_avg < 420)) Balken = (volt_avg-320)/5; |
| lcd_frect(106 + Balken+1, 2, 19-Balken, 3, 0); // löschen |
| } |
| |
| if (PKT_Accutyp == false) // LiON Akku |
| { |
| lcd_rect(104, 0, 22, 7, 1); // Rahmen |
| if (volt_avg >= 410) Balken = 18; |
| if ((volt_avg > 320) && (volt_avg < 410)) Balken = ((volt_avg-320)/5); |
| lcd_frect(106 + Balken+1, 2, 18-Balken, 3, 0); // löschen |
| } |
| |
| |
| if (Balken > 0) lcd_frect(106, 2, Balken, 3, 1); // Füllung |
| |
| } |
| |
| |
| |