| 0,0 → 1,178 |
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| /***************************************************************************** |
| * 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* |
| *****************************************************************************/ |
| |
| //############################################################################ |
| //# HISTORY lipo.c |
| //# |
| //# 15.06.2014 OG |
| //# - fix; show_Lipo() - wenn die Spannung unter 3.20 Volt ging, wurde wieder |
| //# ein voller Akkubalken angezeigt aufgrund einer Subtraktion - fixed |
| //# |
| //# 21.02.2014 OG |
| //# - chg: show_Lipo() neu geschrieben - etwas smarter, ein paar Bytes kleiner |
| //# |
| //# 20.02.2014 OG |
| //# - chg: Codeformattierungen |
| //############################################################################ |
| |
| |
| #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 "../main.h" |
| #include "../lcd/lcd.h" |
| #include "lipo.h" |
| #include "../eeprom/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) |
| { |
| DDRA &= ~(1<<DDA1); // MartinR |
| PORTA &= ~(1<<PORTA1); // MartinR |
| 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 += Config.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, 0,0); |
| // write_ndigit_number_u(0, 4, volt_avg, 5, 0,0); |
| |
| samples = 0; |
| accumulator = 0; |
| |
| sei(); |
| } |
| |
| |
| |
| //-------------------------------------------------------------- |
| //-------------------------------------------------------------- |
| void show_Lipo( void ) |
| { |
| int16_t w = 0; |
| |
| //-------------------------------------------- |
| // Batterie Symbol zeichnen |
| //-------------------------------------------- |
| lcd_rect(104, 0, 23, 7, 1); // Rahmen aussen |
| lcd_rect(105, 1, 21, 5, 0); // Rahmen innen |
| lcd_frect(102, 0, 1, 7, 0); // ganz links etwas loeschen |
| lcd_rect(103,2,1,3,1); // Batterie "Kappe" |
| |
| |
| //-------------------------------------------- |
| // Batterie Balken berechnen / zeichnen |
| //-------------------------------------------- |
| // |
| // Config.PKT_Accutyp |
| // true = LiPO Akku mit max. 4.2 Volt (420) |
| // false = LiON Akku mit max. 4.1 Volt (410) |
| |
| if( volt_avg > 320 ) |
| { |
| w = (volt_avg-320)/(Config.PKT_Accutyp ? 4.8 : 4.5); // die Faktoren 4.8 (kann bis 5.0) und 4.5 fuer LiPo / LiON wurden per Test ermittelt |
| //lcdx_printf_at_P( 12, 1, MNORMAL, 0,0, PSTR("v=%3d"), w ); // Debug Anzeige um Faktoren zu ermitteln |
| } |
| |
| if(w<0) w = 0; |
| if(w>20) w = 20; // nicht mehr als 20 Pixel Breite |
| |
| if( w>0 ) |
| lcd_frect( 106+(20-w), 2, w-1, 3, 1); // Batterie Balken: fill |
| |
| if( w<20 ) |
| lcd_frect( 106, 2, 19-w, 3, 0); // Batterie Balken: clear |
| } |
| |
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