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config.h
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/* ************************************************************************
*
* global configuration, setup and settings
*
* (c) 2012-2019 by Markus Reschke
* based on code from Markus Frejek and Karl-Heinz Kübbeler
*
* ************************************************************************ */
/* source management */
#define CONFIG_H
/*
* For MCU specific settings (port and pin assignments) and LCD display
* settings please edit:
* - ATmega328: config_328.h
* - ATmega324/644/1284: config_644.h
*/
/* ************************************************************************
* Hardware options
* ************************************************************************ */
/*
* rotary encoder for user interface
* - default pins: PD2 & PD3 (ATmega 328)
* - could be in parallel with LCD module
* - see ENCODER_PORT for port pins (config-<MCU>.h)
* - uncomment to enable and also set ENCODER_PULSES & ENCODER_STEPS below
* to match your rotary encoder
*/
//#define HW_ENCODER
/*
* Number of Gray code pulses per step or detent for the rotary encoder
* - typical values: 2 or 4, rarely 1
* - a rotary encoder's pulse is the complete sequence of 4 Gray code pulses
* - adjust value to match your rotary encoder
*/
#define ENCODER_PULSES 4
/*
* Number of detents or steps
* - this is used by the detection of the rotary encoder's turning velocity
* - it doesn't have to match exactly and also allows you to finetune the
* the feedback (higher: slow down, lower: speed up)
* - typical values: 20, 24 or 30
* - adjust value to match your rotary encoder
*/
#define ENCODER_STEPS 24
/*
* increase/decrease push buttons for user interface
* - alternative for rotary encoder
* - see KEY_PORT for port pins (config-<MCU>.h)
* - uncomment to enable
*/
//#define HW_INCDEC_KEYS
/*
* 2.5V voltage reference for Vcc check
* - default pin: PC4 (ATmega 328)
* - should be at least 10 times more precise than the voltage regulator
* - see TP_REF for port pin (config-<MCU>.h)
* - 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
* - default pin: PC4 (ATmega 328)
* - low signal: short circuit probe pins
* high signal via external reference: remove short circuit
* - uncomment to enable
*/
//#define HW_DISCHARGE_RELAY
/*
* voltage measurement up to 50V DC
* - default pin: PC3 (ATmega 328)
* - 10:1 voltage divider
* - for Zener diodes
* - DC-DC boost converter controled by test push button
* - see TP_BAT for port pin
* - uncomment to enable
*/
//#define HW_ZENER
/*
* fixed signal output
* - in case the MCU's OC1B pin is wired as dedicated signal output
* instead of driving the Rl probe resistor for test pin #2
* - uncomment to enable
*/
//#define HW_FIXED_SIGNAL_OUTPUT
/*
* basic frequency counter
* - default pin: T0 (PD4 ATmega 328)
* - uses T0 directly as frequency input
* - counts up to 1/4 of MCU clock rate
* - might be in parallel with LCD module
* - uncomment to enable
*/
//#define HW_FREQ_COUNTER_BASIC
/*
* extended frequency counter
* - low and high frequency crystal oscillators
* and buffered frequency input
* - prescalers 1:1 and 16:1 (32:1)
* - see COUNTER_PORT for port pins (config-<MCU>.h)
* - requires a display with more than 2 text lines
* - uncomment to enable
* - select the circuit's prescaler setting: either 16:1 or 32:1
*/
//#define HW_FREQ_COUNTER_EXT
#define FREQ_COUNTER_PRESCALER 16 /* 16:1 */
//#define FREQ_COUNTER_PRESCALER 32 /* 32:1 */
/*
* event counter
* - default pin: T0 (PD4 ATmega 328)
* - uses T0 directly as event/pulse input (rising edge)
* - no shared operation with displays possible for T0
* - requires additional keys (e.g. rotary encoder) and a display with
* more than 5 lines
* - only for MCU clock of 8, 16 or 20MHz
* - uncomment to enable
*/
//#define HW_EVENT_COUNTER
/*
* IR remote control detection/decoder (via dedicated MCU pin)
* - requires IR receiver module, e.g. TSOP series
* - module is connected to fixed I/O pin
* - see IR_PORT for port pin (config-<MCU>.h)
* - uncomment to enable
* - for additional protocols also enable SW_IR_RX_EXTRA
*/
//#define HW_IR_RECEIVER
/*
* fixed cap for self-adjustment
* - see TP_CAP and ADJUST_PORT for port pins (config-<MCU>.h)
* - uncomment to enable
*/
//#define HW_ADJUST_CAP
/*
* relay for parallel cap (sampling ADC)
* - uncomment to enable (not implemented yet)
*/
//#define HW_CAP_RELAY
/* ************************************************************************
* software options
* ************************************************************************ */
/*
* PWM generator with simple user interface
* - uncomment to enable
*/
#define SW_PWM_SIMPLE
/*
* PWM generator with fancy user interface
* - requires additional keys and display with more than 2 text lines
* - uncomment to enable
*/
//#define SW_PWM_PLUS
/*
* Inductance measurement
* - uncomment to enable
*/
#define SW_INDUCTOR
/*
* ESR measurement and in-circuit ESR measurement
* - requires MCU clock >= 8 MHz
* - choose SW_OLD_ESR for old method starting at 180nF
* - uncomment to enable
*/
#define SW_ESR
//#define SW_OLD_ESR
/*
* check for rotary encoders
* - uncomment to enable
*/
//#define SW_ENCODER
/*
* squarewave signal generator
* - requires additional keys
* - uncomment to enable
*/
#define SW_SQUAREWAVE
/*
* IR remote control detection/decoder (via probes)
* - requires IR receiver module, e.g. TSOP series
* - module will be connected to probe leads
* - uncomment to enable
*/
#define SW_IR_RECEIVER
/*
* current limiting resistor for IR receiver module
* - for 5V only modules
* - Warning: any short circuit may destroy your MCU
* - uncomment to disable resistor
*/
//#define SW_IR_DISABLE_RESISTOR
/*
* additional protocols for IR remote control detection/decoder
* - uncommon protocols which will increase flash memory usage ;)
* - uncomment to enable
*/
//#define SW_IR_RX_EXTRA
/*
* IR remote control sender
* - requires additional keys and display with more than 4 text lines
* - also requires an IR LED with a simple driver
* - uncomment to enable
*/
//#define SW_IR_TRANSMITTER
/*
* Alternative delay loop for IR remote control sender
* - in case the the C compiler screws up the default delay loop
* and causes incorrect pulse/pause timings
* - uncomment to enable
*/
//#define SW_IR_TX_ALTDELAY
/*
* additional protocols for IR remote control sender
* - uncommon protocols which will increase flash memory usage ;)
* - uncomment to enable
*/
//#define SW_IR_TX_EXTRA
/*
* check for opto couplers
* - uncomment to enable
*/
#define SW_OPTO_COUPLER
/*
* check for Unijunction Transistors
* - uncomment to enable
*/
#define SW_UJT
/*
* Servo Check
* - requires additional keys and display with more than 2 text lines
* - uncomment to enable
*/
//#define SW_SERVO
/*
* DS18B20
* - uncomment to enable
* - also enable ONEWIRE_PROBES or ONEWIRE_IO_PIN (see section 'Busses')
*/
//#define SW_DS18B20
/*
* capacitor leakage check
* - requires display with more than two lines
* - uncomment to enable
*/
//#define SW_CAP_LEAKAGE
/*
* Reverse hFE for BJTs
* - hFE for collector and emitter reversed
* - uncomment to enable
*/
#define SW_REVERSE_HFE
/* ************************************************************************
* 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
/* ************************************************************************
* user interface
* ************************************************************************ */
/*
* Languange of user interface. Available languages:
* - English (default)
* - Czech
* - Danish
* - German
* - Polish
* - Spanish
* - Russian (only 8x16 font horizontally aligned)
*/
#define UI_ENGLISH
//#define UI_CZECH
//#define UI_DANISH
//#define UI_GERMAN
//#define UI_ITALIAN
//#define UI_POLISH
//#define UI_SPANISH
//#define UI_RUSSIAN
/*
* Use comma instead of dot to indicate a decimal fraction.
* - uncomment to enable
*/
//#define UI_COMMA
/*
* Display temperatures in Fahrenheit instead of Celsius.
* - uncomment to enable
*/
//#define UI_FAHRENHEIT
/*
* Set the default operation mode to auto-hold.
* - instead of continous mode
* - uncomment to enable
*/
//#define UI_AUTOHOLD
/*
* Trigger the menu also by a short circuit of all three probes.
* - former default behaviour
* - uncomment to enable
*/
//#define UI_SHORT_CIRCUIT_MENU
/*
* Show key hints instead of cursor if available.
* - currently only "Menu/Test"
* - requires additional keys and display with a sufficient number of
* text lines (recommended: >= 8 lines)
* - uncomment to enable
*/
//#define UI_KEY_HINTS
/*
* Output components found also via TTL serial interface.
* - uncomment to enable
* - also enable SERIAL_BITBANG or SERIAL_HARDWARE (see section 'Busses')
*/
//#define UI_SERIAL_COPY
/*
* Control tester via TTL serial interface.
* - uncomment to enable
* - also enable SERIAL_BITBANG or SERIAL_HARDWARE, plus SERIAL_RW
* (see section 'Busses')
*/
//#define UI_SERIAL_COMMANDS
/*
* Maximum time to wait after probing (in ms).
* - applies to continuous mode only
* - Time between printing the result and starting a new probing cycle.
*/
#define CYCLE_DELAY 3000
/*
* Maximum number of check runs without any component found in a row.
* - applies to continuous mode only
* - If this number is reached the tester will power off.
*/
#define CYCLE_MAX 5
/*
* Automatic power-off when no button is pressed for a while (in s).
* - applies to auto-hold mode only
* - uncomment to enable, also adjust timeout (in s)
*/
//#define POWER_OFF_TIMEOUT 60
/*
* color coding for probes
* - requires color graphics LCD
* - uncomment to enable
* - edit colors.h to select correct probe colors
*/
#define SW_PROBE_COLORS
/*
* main menu: power off tester
* - uncomment to enable
*/
//#define SW_POWER_OFF
/* ************************************************************************
* power management
* ************************************************************************ */
/*
* Battery monitoring mode:
* - BAT_NONE disable battery monitoring completely
* - BAT_DIRECT direct measurement of battary voltage (< 5V)
* - BAT_DIVIDER measurement via voltage divider
* - uncomment one of the modes
*/
//#define BAT_NONE
//#define BAT_DIRECT
#define BAT_DIVIDER
/*
* Unmonitored optional external power supply
* - Some circuits supporting an additional external power supply are designed
* in a way that prevents the battery monitoring to measure the voltage of
* the external power supply. This would trigger the low battery shut-down.
* The switch below will prevent the shut-down when the measured voltage is
* below 0.9V (caused by the diode's leakage current).
* - uncomment to enable
*/
//#define BAT_EXT_UNMONITORED
/*
* Voltage divider for battery monitoring
* - BAT_R1: top resistor in Ohms
* - BAT_R2: bottom resistor in Ohms
*/
#define BAT_R1 10000
#define BAT_R2 3300
/*
* Voltage drop by reverse voltage protection diode and power management
* transistor (in mV):
* - or any other circuitry in the power section
* - Get your DMM and measure the voltage drop!
* - Schottky diode about 200mV / PNP BJT about 100mV.
*/
#define BAT_OFFSET 290
/*
* Battery weak voltage (in mV).
* - Tester warns if BAT_WEAK is reached.
* - Voltage drop BAT_OFFSET is considered in calculation.
*/
#define BAT_WEAK 7400
/*
* Battery low voltage (in mV).
* - Tester powers off if BAT_LOW is reached.
* - Voltage drop BAT_OFFSET is considered in calculation.
*/
#define BAT_LOW 6400
/*
* Enter sleep mode when idle to save power.
* - uncomment to enable
*/
#define SAVE_POWER
/* ************************************************************************
* 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.
* - if resistors >20k measure too high or low adjust the offset accordingly
* - standard offset is 350 Ohms
*/
#define RH_OFFSET 350
/*
* Resistance of probes (in 0.01 Ohms).
* - default offset for PCB tracks and probe leads
* - resistance of two probes in series
* - assuming all probes have same/similar resistance
* - will be updated by self-adjustment
*/
#define R_ZERO 20
/*
* Capacitance of probes (in pF).
* - default offset for MCU, PCB tracks and probe leads
* - Examples:
* capacitance length
* -------------------------
* 3pF about 10cm
* 9pF about 30cm
* 15pF about 50cm
* - maximum value: 100
* - will be updated by self-adjustment
*/
#define C_ZERO 43
/*
* Use probe pair specific capacitance offsets instead of an
* average value for all probes.
* - uncomment to enable
*/
//#define CAP_MULTIOFFSET
/*
* Maximum voltage at which we consider a capacitor being
* discharged (in mV).
*/
#define CAP_DISCHARGED 2
/*
* Correction factors for capacitors (in 0.1%)
* - positive factor increases capacitance value
* negative factor decreases capacitance value
* - CAP_FACTOR_SMALL for caps < 4.7µF
* - CAP_FACTOR_MID for caps 4.7 - 47µF
* - CAP_FACTOR_LARGE for caps > 47µF
*/
#define CAP_FACTOR_SMALL 0 /* no correction */
#define CAP_FACTOR_MID -40 /* -4.0% */
#define CAP_FACTOR_LARGE -90 /* -9.0% */
/*
* 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
* ************************************************************************ */
/* MCU clock */
#define CPU_FREQ F_CPU
/*
* ATmega 328/328P
*/
#if defined(__AVR_ATmega328__)
#include "config_328.h"
/*
* ATmega 324P/324PA/644/644P/644PA/1284/1284P
*/
#elif defined(__AVR_ATmega324P__) || defined(__AVR_ATmega644__) || defined(__AVR_ATmega1284__)
#include "config_644.h"
/*
* missing or unsupported MCU
*/
#else
#error <<< No or wrong MCU type selected! >>>
#endif
/* ************************************************************************
* Busses
* ************************************************************************ */
/*
* I2C bus
* - might be required by some hardware
* - could be enabled already in display section (config_<MCU>.h)
* - for bit-bang I2C port and pins see I2C_PORT (config_<MCU>.h)
* - hardware I2C (TWI) uses automatically the proper MCU pins
* - uncomment either I2C_BITBANG or I2C_HARDWARE to enable
* - uncomment one of the bus speed modes
*/
//#define I2C_BITBANG /* bit-bang I2C */
//#define I2C_HARDWARE /* MCU's hardware TWI */
//#define I2C_STANDARD_MODE /* 100kHz bus speed */
//#define I2C_FAST_MODE /* 400kHz bus speed */
//#define I2C_RW /* enable I2C read support (untested) */
/*
* SPI bus
* - might be required by some hardware
* - could be enabled already in display section (config_<MCU>.h)
* - for bit-bang SPI port and pins see SPI_PORT (config_<MCU>.h)
* - hardware SPI uses automatically the proper MCU pins
* - uncomment either SPI_BITBANG or SPI_HARDWARE to enable
*/
//#define SPI_BITBANG /* bit-bang SPI */
//#define SPI_HARDWARE /* hardware SPI */
//#define SPI_RW /* enable SPI read support */
/*
* TTL serial interface
* - could be enabled already in display section (config_<MCU>.h)
* - for bit-bang serial port and pins see SERIAL_PORT (config_<MCU>.h)
* - hardware serial uses automatically the proper MCU pins
* - uncomment either SERIAL_BITBANG or SERIAL_HARDWARE to enable
*/
//#define SERIAL_BITBANG /* bit-bang serial */
//#define SERIAL_HARDWARE /* hardware serial */
//#define SERIAL_RW /* enable serial read support */
/*
* OneWire bus
* - for dedicated I/O pin please see ONEWIRE_PORT (config_<MCU>.h)
* - uncomment either ONEWIRE_PROBES or ONEWIRE_IO_PIN to enable
*/
//#define ONEWIRE_PROBES /* via probes */
//#define ONEWIRE_IO_PIN /* via dedicated I/O pin */
/* ************************************************************************
* ADC clock
* ************************************************************************ */
/*
* ADC clock
* - The ADC clock is 125000Hz by default.
* - You could also set 250000Hz, but that exceeds the max. ADC clock
* of 200kHz for 10 bit resolution!
* - Special case for 20MHz MCU clock: 156250Hz
*/
#if CPU_FREQ == 20000000
/* 20MHz MCU clock */
#define ADC_FREQ 156250
#else
/* all other MCU clocks */
#define ADC_FREQ 125000
#endif
/*
* define clock divider
* - supports 1MHz, 2MHz, 4MHz, 8MHz, 16MHz and 20MHz MCU clocks
* - we got only 7 fixed prescalers from 2 up to 128
*/
/* 1MHz/250kHz */
#if CPU_FREQ / ADC_FREQ == 4
#define ADC_CLOCK_DIV (1 << ADPS1)
#endif
/* 1MHz/125kHz 2MHz/250kHz */
#if CPU_FREQ / ADC_FREQ == 8
#define ADC_CLOCK_DIV (1 << ADPS1) | (1 << ADPS0)
#endif
/* 2MHz/125kHz 4MHz/250kHz */
#if CPU_FREQ / ADC_FREQ == 16
#define ADC_CLOCK_DIV (1 << ADPS2)
#endif
/* 4MHz/125kHz 8MHz/250kHz */
#if CPU_FREQ / ADC_FREQ == 32
#define ADC_CLOCK_DIV (1 << ADPS2) | (1 << ADPS0)
#endif
/* 8MHz/125kHz 16MHz/250kHz */
#if CPU_FREQ / ADC_FREQ == 64
#define ADC_CLOCK_DIV (1 << ADPS2) | (1 << ADPS1)
#endif
/* 16MHz/125kHz 20MHz/156.25kHz */
#if CPU_FREQ / ADC_FREQ == 128
#define ADC_CLOCK_DIV (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0)
#endif
/* ************************************************************************
* derived values
* ************************************************************************ */
/*
* number of MCU cycles per µs
* - min. 1 (for 1MHz)
* - max. 20 (for 20MHz)
*/
#define MCU_CYCLES_PER_US (CPU_FREQ / 1000000)
/*
* number of MCU cycles per ADC cycle
* - min. 4
* - max. 128
*/
#define MCU_CYCLES_PER_ADC (CPU_FREQ / ADC_FREQ)
/*
* time of a MCU cycle (in 0.1 ns)
*/
#define MCU_CYCLE_TIME (10000 / (CPU_FREQ / 1000000))
/* ************************************************************************
* options management
* ************************************************************************ */
/*
* hardware/software options
*/
/* additional keys */
/* rotary encoder, increase/decrease push buttons or touch screen */
#if defined (HW_ENCODER) || defined (HW_INCDEC_KEYS) | defined (HW_TOUCH)
#define HW_KEYS
#endif
/* options which require additional keys */
#ifndef HW_KEYS
/* key hints */
#ifdef UI_KEY_HINTS
#undef UI_KEY_HINTS
#endif
/* PWM+ */
#ifdef SW_PWM_PLUS
#undef SW_PWM_PLUS
#define SW_PWM_SIMPLE
#endif
/* squarewave generator */
#ifdef SW_SQUAREWAVE
#undef SW_SQUAREWAVE
#endif
/* Servo Check */
#ifdef SW_SERVO
#undef SW_SERVO
#endif
/* IR Sender */
#ifdef SW_IR_TRANSMITTER
#undef SW_IR_TRANSMITTER
#endif
#endif
/* options which require a MCU clock >= 8MHz */
#if CPU_FREQ < 8000000
/* ESR measurement */
#ifdef SW_ESR
#undef SW_ESR
#endif
/* old ESR measurement */
#ifdef SW_OLD_ESR
#undef SW_OLD_ESR
#endif
#endif
/* SPI */
#if defined (SPI_BITBANG) || defined (SPI_HARDWARE)
#define HW_SPI
#endif
/* 9-Bit SPI requires bit-bang mode */
#ifdef SPI_9
#ifndef SPI_BITBANG
#error <<< 9-Bit SPI requires bit-bang mode! >>>
#endif
#endif
/* I2C */
#if defined (I2C_BITBANG) || defined (I2C_HARDWARE)
#define HW_I2C
#endif
/* TTL serial */
#if defined (SERIAL_BITBANG) || defined (SERIAL_HARDWARE)
#define HW_SERIAL
#endif
/* VT100 display driver disables other options for serial interface */
#ifdef LCD_VT100
#ifdef UI_SERIAL_COPY
#undef UI_SERIAL_COPY
#endif
#ifdef UI_SERIAL_COMMANDS
#undef UI_SERIAL_COMMANDS