/* ************************************************************************ * * global configuration, setup and settings * * (c) 2012-2015 by Markus Reschke * based on code from Markus Frejek and Karl-Heinz Kübbeler * * ************************************************************************ */ /* source management */ #define CONFIG_H /* ************************************************************************ * LCD module * ************************************************************************ */ /* * LCD module / controller * * Please uncomment the package matching your LCD module * and adjust settings. * * To uncomment, remove the enclosing "#if 0" and "#endif" or * put a "//" in front of both. */ /* * HD44780, 4 bit parallel */ #if 0 #define LCD_HD44780_PAR4 #define LCD_TEXT /* character display */ #define LCD_PORT PORTD /* port data register */ #define LCD_DDR DDRD /* port data direction register */ /* - lower 4 bits for LCD data interface */ /* - upper 4 bits for control lines */ #define LCD_RS PD4 /* port pin used for RS */ #define LCD_EN1 PD5 /* port pin used for E */ #define LCD_CHAR_X 16 /* characters per line */ #define LCD_CHAR_Y 2 /* number of lines */ #define FONT_HD44780_INT /* internal 5x7 font, international */ #endif /* * ST7565R, SPI interface * - settings for Electronic Assembly EA DOGM/DOGL128-6 * - uses LCD_CS to support rotary encoder in parallel at PD2/3 */ #if 0 #define LCD_ST7565R_SPI #define LCD_GRAPHIC /* monochrome graphic display */ #define LCD_PORT PORTD /* port data register */ #define LCD_DDR DDRD /* port data direction register */ #define LCD_RESET PD0 /* port pin used for /RES */ #define LCD_A0 PD1 /* port pin used for A0 */ #define LCD_SCL PD2 /* port pin used for SCL */ #define LCD_SI PD3 /* port pin used for SI (LCD's data input) */ #define LCD_CS PD5 /* port pin used for /CS1 (optional) */ #define LCD_DOTS_X 128 /* number of horizontal dots */ #define LCD_DOTS_Y 64 /* number of vertical dots */ //#define LCD_FLIP_X /* enable horizontal flip */ #define LCD_OFFSET_X /* enable x offset of 4 dots */ #define LCD_FLIP_Y /* enable vertical flip */ #define LCD_START_Y 0 /* start line (0-63) */ #define LCD_CONTRAST 22 /* default contrast (0-63) */ #define FONT_8X8_V /* 8x8 font, vertically aligned */ #define SYMBOLS_24X24_V /* 24x24 symbols, vertically aligned */ #endif /* * Chinese clone T3/T4 with ST7585 display * - thanks to tom666 @ EEVblog forum */ //#if 0 #define LCD_ST7565R_SPI #define LCD_GRAPHIC /* monochrome graphic display */ #define LCD_PORT PORTD /* port data register */ #define LCD_DDR DDRD /* port data direction register */ #define LCD_RESET PD4 /* port pin used for /RES */ #define LCD_A0 PD3 /* port pin used for A0 */ #define LCD_SCL PD2 /* port pin used for SCL */ #define LCD_SI PD1 /* port pin used for SI (LCD's data input) */ // #define LCD_CS PD5 /* port pin used for /CS1 (optional) */ #define LCD_DOTS_X 128 /* number of horizontal dots */ #define LCD_DOTS_Y 64 /* number of vertical dots */ #define LCD_START_Y 0 /* start line (0-63) */ #define LCD_CONTRAST 11 /* default contrast (0-63) */ #define FONT_8X8_V /* 8x8 font, vertically aligned */ #define SYMBOLS_24X24_V /* 24x24 symbols, vertically aligned */ //#endif /* * ILI8342, SPI interface */ #if 0 #define LCD_ILI9341_SPI #define LCD_COLOR /* color graphic display */ #define LCD_PORT PORTD /* port data register */ #define LCD_DDR DDRD /* port data direction register */ #define LCD_RES PD4 /* port pin used for /RES */ #define LCD_CS PD5 /* port pin used for /CS */ #define LCD_DC PD3 /* port pin used for D/C */ #define LCD_SCK PD2 /* port pin used for SCK */ #define LCD_SDI PD1 /* port pin used for SDI (LCD's data input) */ #define LCD_SDO PD0 /* port pin used for SDO (LCD's data output) */ #define LCD_DOTS_X 320 /* number of horizontal dots */ #define LCD_DOTS_Y 240 /* number of vertical dots */ //#define LCD_FLIP_X /* enable horizontal flip */ //#define LCD_FLIP_Y /* enable vertical flip */ //#define LCD_ROTATE /* switch X and Y (rotate by 90°) */ #define LCD_SLOW /* slow interaction */ #define FONT_16X26_H /* 16x26 font, horizontally aligned */ #define SYMBOLS_32X32_H /* 32x32 symbols, horizontally aligned */ #endif /* * check if a LCD module is specified */ #ifndef LCD_PORT #error <<< No LCD module specified! >>> #endif /* ************************************************************************ * touchscreen (optional) * ************************************************************************ */ /* * touchscreen / controller * * Please uncomment the package matching your touchscreen * and adjust settings. * * To uncomment, remove the enclosing "#if 0" and "#endif" or * put a "//" in front of both. */ /* * ADS7843 / XPT2046 (SPI interface) */ #if 0 #define TOUCH_ADS7843 #define TOUCH_PORT PORTD /* port data register */ #define TOUCH_DDR DDRD /* port data direction register */ #define TOUCH_CS /* port pin used for /CS */ #define TOUCH_D_CLK /* port pin used for DCLK */ #define TOUCH_D_OUT /* port pin used for DOUT */ #define TOUCH_D_IN /* port pin used for DIN */ #define TOUCH_PEN /* port pin used for /PENIRQ */ #endif /* ************************************************************************ * Hardware options * ************************************************************************ */ /* * rotary encoder for user interface (PD2 & PD3) * - in parallel with LCD module * - requires MCU with >=32kB Flash * - uncomment to enable and also set ENCODER_PULSES below to match your * rotary encoder */ #define HW_ENCODER /* * Number of pulses per step or detent for the rotary encoder * - typical values: 1, 2 or 4 * - adjust value to match your rotary encoder */ #define ENCODER_PULSES 2 /* * 2.5V voltage reference for Vcc check (PC4) * - should be at least 10 times more precise than the voltage regulator * - uncomment to enable and also adjust UREF_25 below for your voltage * reference */ //#define HW_REF25 /* * Typical voltage of 2.5V voltage reference (in mV) * - see datasheet of the voltage reference * - or use >= 5.5 digit DMM to measure the voltage */ #define UREF_25 2495 /* * Probe protection relay for discharging caps (PC4): * - low signal: short circuit probe pins * high signal via external reference: remove short circuit * - uncomment to enable */ //#define HW_RELAY /* * voltage measurement up to 50V DC (10:1 voltage divider, PC3): * - for Zener diodes * - DC-DC boost converter controled by test push button * - requires MCU with >=32kB Flash and >=1kB EEPROM * - uncomment to enable */ //#define HW_ZENER /* * frequency counter (PD4) * - in parallel with LCD module * - requires MCU with >=32kB Flash * - uncomment to enable */ //#define HW_FREQ_COUNTER /* ************************************************************************ * port and pin assignments * ************************************************************************ */ /* * Test probes: * - Must be an ADC port :-) * - Lower 3 pins of the port must be used for probe pins. * - Please don't change the definitions of TP1, TP2 and TP3! */ #define ADC_PORT PORTC /* ADC port data register */ #define ADC_DDR DDRC /* ADC port data direction register */ #define ADC_PIN PINC /* port input pins register */ #define TP1 PC0 /* test pin 1 (=0) */ #define TP2 PC1 /* test pin 2 (=1) */ #define TP3 PC2 /* test pin 3 (=2) */ #define TP_ZENER PC3 /* test pin with 10:1 voltage divider */ #define TP_REF PC4 /* test pin with 2.5V reference and relay */ #define TP_BAT PC5 /* test pin with 4:1 voltage divider */ /* * Probe resistors * * The resistors must be connected to the lower 6 pins of the port in * following sequence: * - pin 0: Rl1 680R (test pin 1) * - pin 1: Rh1 470k (test pin 1) * - pin 2: Rl2 680R (test pin 2) * - pin 3: Rh2 470k (test pin 2) * - pin 4: Rl3 680R (test pin 3) * - pin 5: Rh3 470k (test pin 3) */ #define R_PORT PORTB /* port data register */ #define R_DDR DDRB /* port data direction register */ /* * push button and power management */ #define CONTROL_PORT PORTD /* port data register */ #define CONTROL_DDR DDRD /* port data direction register */ #define CONTROL_PIN PIND /* port input pins register */ #define POWER_CTRL PD6 /* controls power (1: on / 0: off) */ #define TEST_BUTTON PD7 /* test/start push button (low active) */ #define ENCODER_A PD2 /* rotary encoder A signal */ #define ENCODER_B PD3 /* rotary encoder B signal */ /* ************************************************************************ * Makefile workaround for some IDEs * ************************************************************************ */ /* * Oscillator startup cycles (after wakeup from power-safe mode): * - typical values * - internal RC: 6 * - full swing crystal: 16384 (also 256 or 1024 based on fuse settings) * - low power crystal: 16384 (also 256 or 1024 based on fuse settings) * - Please change value if it doesn't match your tester! */ #ifndef OSC_STARTUP #define OSC_STARTUP 16384 #endif /* ************************************************************************ * misc settings * ************************************************************************ */ /* * Languange of user interface. Available languages: * - English (default) * - German * - Czech */ #define UI_ENGLISH //#define UI_GERMAN //#define UI_CZECH /* * LCD module with cyrillic character set * - uncomment if you are using such an LCD */ //#define LCD_CYRILLIC /* * Maximum time to wait after a measurement in continous mode (in ms). * - Time between printing the result and starting a new cycle. */ #define CYCLE_DELAY 3000 /* * Maximum number of measurements without any components found. * - If that number is reached the tester powers off. */ #define CYCLE_MAX 5 /* * Voltage drop by reverse voltage protection diode and power management. * transistor (in mV): * - Schottky diode about 200mV / Transistor about 100mV. * - Get your DMM and measure the voltage drop! * - Could be also used to compensate any offset by the voltage divider * used to measure the battery voltage. */ #define BAT_OFFSET 290 /* * Battery low voltage (in mV). * - Tester warns if BAT_POOR + 1V is reached. * - Tester powers off if BAT_POOR is reached. * - Voltage drop (BAT_OUT) is considered in calculation. */ #define BAT_POOR 6400 /* ************************************************************************ * measurement settings and offsets * ************************************************************************ */ /* * ADC voltage reference based on Vcc (in mV). */ #define UREF_VCC 5001 /* * Offset for the internal bandgap voltage reference (in mV): -100 up to 100 * - To compensate any difference between real value and measured value. * - The ADC has a resolution of about 4.88mV for V_ref = 5V (Vcc) and * 1.07mV for V_ref = 1.1V (bandgap). * - Will be added to measured voltage of bandgap reference. */ #define UREF_OFFSET 0 /* * Exact values of probe resistors. * - Standard value for Rl is 680 Ohms. * - Standard value for Rh is 470k Ohms. */ /* Rl in Ohms */ #define R_LOW 680 /* Rh in Ohms */ #define R_HIGH 470000 /* * Offset for systematic error of resistor measurement with Rh (470k) * in Ohms. */ #define RH_OFFSET 700 /* * Resistance of probe leads (in 0.01 Ohms). * - Resistance of two probe leads in series. * - Assuming all probe leads got same/similar resistance. */ #define R_ZERO 20 /* * Capacitance of the wires between PCB and terminals (in pF). * Examples: * - 2pF for wires 10cm long */ #define CAP_WIRES 2 /* * Capacitance of the probe leads connected to the tester (in pF). * Examples: * capacity length of probe leads * ------------------------------- * 3pF about 10cm * 9pF about 30cm * 15pF about 50cm */ #define CAP_PROBELEADS 9 /* * Maximum voltage at which we consider a capacitor being * discharged (in mV) */ #define CAP_DISCHARGED 2 /* * Number of ADC samples to perform for each mesurement. * - Valid values are in the range of 1 - 255. */ #define ADC_SAMPLES 25 /* ************************************************************************ * MCU specific setup to support different AVRs * ************************************************************************ */ /* * ATmega328 */ #if defined(__AVR_ATmega328__) /* estimated internal resistance of port to GND (in 0.1 Ohms) */ #define R_MCU_LOW 200 /* 209 */ /* estimated internal resistance of port to VCC (in 0.1 Ohms) */ #define R_MCU_HIGH 220 /* 235 */ /* voltage offset of MCUs analog comparator (in mV): -50 up to 50 */ #define COMPARATOR_OFFSET 15 /* capacitance of the probe tracks of the PCB and the MCU (in pF) */ #define CAP_PCB 32 /* total default capacitance (in pF): max. 255 */ #define C_ZERO CAP_PCB + CAP_WIRES + CAP_PROBELEADS /* this MCU has 32kB Flash, 1kB EEPROM and 2kB RAM (enable extra features) */ #define RES_FLASH 32 #define RES_EEPROM 1 #define RES_RAM 2 /* * ATmega664 64k flash, 2k EEPROM, 4k RAM * ATmega1284 128k flash, 4k EEPROM, 16k RAM */ /* * missing or unsupported MCU */ #else #error <<< No or wrong MCU type selected! >>> #endif /* ************************************************************************ * ADC clock * ************************************************************************ */ /* * selection of ADC clock * - ADC clock can be 125000 or 250000 * - 250kHz is out of the full accuracy specification! */ #define ADC_FREQ 125000 /* * define clock divider * - supports 1MHz, 2MHz, 4MHz, 8MHz and 16MHz MCU clock * - 4 for CPU clock of 1MHz and ADC clock of 250kHz * - 128 for CPU clock of 16MHz and ADC clock of 125kHz */ #define CPU_FREQ F_CPU #if CPU_FREQ / ADC_FREQ == 4 #define ADC_CLOCK_DIV (1 << ADPS1) #endif #if CPU_FREQ / ADC_FREQ == 8 #define ADC_CLOCK_DIV (1 << ADPS1) | (1 << ADPS0) #endif #if CPU_FREQ / ADC_FREQ == 16 #define ADC_CLOCK_DIV (1 << ADPS2) #endif #if CPU_FREQ / ADC_FREQ == 32 #define ADC_CLOCK_DIV (1 << ADPS2) | (1 << ADPS0) #endif #if CPU_FREQ / ADC_FREQ == 64 #define ADC_CLOCK_DIV (1 << ADPS2) | (1 << ADPS1) #endif #if CPU_FREQ / ADC_FREQ == 128 #define ADC_CLOCK_DIV (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0) #endif /* ************************************************************************ * ressource management * ************************************************************************ */ /* * software options */ /* auto-enable extra features for >=32kB Flash */ #if RES_FLASH >= 32 #define SW_PWM #define SW_INDUCTOR #define SW_ESR #define SW_ENCODER /* requires rotary encoder */ #ifdef HW_ENCODER #define SW_SQUAREWAVE #endif #endif /* LCD module */ #ifdef LCD_CONTRAST #define SW_CONTRAST #else #define LCD_CONTRAST 0 #endif /* component symbols for fancy pinout */ #if defined (SYMBOLS_24X24_V) || defined (SYMBOLS_24X24_H) || defined (SYMBOLS_32X32_H) #define SW_SYMBOLS #endif /* touchscreen */ #ifdef TOUCH_PORT #define HW_TOUCH #endif /* ************************************************************************ * EOF * ************************************************************************ */