Description
The Digital Logic Trainer board should consist of below:
The whole trainer is fully designed by FPGA/CPLD logic circuit. Buffer circuits have enhanced protection for each module which is powered by main unit through power socket, avoiding wrong input power source during the experiment. Covers different levels of logic circuit experiments, ranging from combinational logic, sequential logic as well as the logic circuit interfacing with microcontroller and practical application circuit for daily use. Includes various types of ADC & DAC circuits to learn different interfacing circuits between analog and digital signal. Built-in 8- channel multiplexer in main unit to measure multiple digital signals in real time. Multiple operation modes from 4-digit 7-segment display (a) scanning display mode, (b) individual digit display mode, (c) frequency counter mode for measurement of internal and external clock. Individual keep case for all modules for easy storing and carrying.
Main Unit:
DC Power Supply
Fixed DC power supply: +5V/2A, -5V/0.5A, +12V/2A With overload protection
Clock Generator
Signal amplitude output: 3.3V
With adjustable output frequency: square wave, 1Hz ~ 1MHz, 6 range
Frequency display :4-digit, 7-segment LED
Logic Level Switch: Toggle switches x 8, 3.3V output Data Level Switch: 8-bit DIP switch x 2, 3.3V output Pulse Signal Generator
2 sets of toggle switch with independent control output, Each set with Q, Q’ output Pulse width > 5ms, each with Denounce circuit
Logic Level Indicator
16-bit LED with driver and protection circuit Input Impedance: > 100K ohms
8 Channel Logic Signal Tracer
8 logic signal input: input impedance: ≥ 100K ohms, 3.3V input Fixed DC level shift for each channel
Input signal attenuation ratio: 1/8 Output signal: BNC or 2mm plug
Oscilloscope SYNC. select: ALT/CHOP and scan-frequency adjustment The function can be used only with analog oscilloscope
- segment LED display & frequency measurement DIP switches select the function:
00: Scanning display mode
Common anode for the control of 7-segments a ~ g Scanning cathode for the control of 4-digit S0 ~ S3 Independent display mode
Input 4-digit of data individually and decode the data at 7-segment display separately
Independent binary input and hexadecimal output 10:
Frequency counter for internal clock
Display the frequency of clock generator from main unit Frequency range: 0.001KHz ~ 999.9KHz
11: Frequency counter for external clock
Display the frequency of clock signal from external unit Frequency range: 0.001KHz ~ 999.9KHz
Rotary Encoder Rotary encoder output: PA, PB and GND signal, 3.3V output Standard Signal Generator 5 sets of frequency:
20MHz, 1MHz, 10KHz, 100Hz, 1Hz
Experiment Modules
All built-in DC power socket module supply DC power from the main unit.
Each module includes a CPLD chip to implement all digital circuits shown on module panel. 2mm sockets, bridge plugs, and cables are used throughout all modules so that students can easily create the
circuits and compare different results in short time. With comprehensive experiment manual.
List of Modules
Combinational Logic Circuit Experiment
Arithmetical Logic/Tri-state & Code Converter Experiment Encoder, Decoder & Multiplexer Logic Circuit Experiment Flip-flop & Sequential Logic & Counter Circuit Experiment Oscillator/Pulser; Load; Up/Down Counter Circuit Experiment
Memory; Matrix LED; DAC/ADC & MCU Interface Circuit Experiment Digital & Analog Timer, Pulse Generator Circuit Experiment
Ramp-compare/SAR/Dual-slope ADC Experiment Keyboard & Display for Stepping Motor Position Control Precise Digital Clock Timer
Universal CPLD & Breadboard Experiment List of Experiments Combinational Logic Circuit Experiment
NOR gate circuit NAND gate circuit XOR gate circuit
Constructing XOR gate with NAND gate The combination with basic gates
AND-OR-INVERTER (A-O-I) gate circuit Comparator circuit
Comparator constructed with basic logic gates Comparator constructed with TTL IC Schmitt gate circuit
Open-collector gate circuit High voltage/current circuit
Constructing an AND gate with open collector gate
Half-adder and full-adder circuit Construct HA with basic logic gates
Half-sub tractor and full-sub tractor circuit Subtract or circuit constructed with basic logic gates Bit parity generator circuit Bit parity generator constructed with XOR gates
Constructing a 4-to-10 decoder with TTL IC
The switch characteristics of TTL level conversion circuit Arithmetical Logic/Tri-state & Code Converter Experiment CMOS FET tractate gate circuit
Truth table measurements
Constructing an AND gate with tractate gate Bidirectional transmission circuit
Half-adder and full-adder circuit Full-adder circuit with IC
High-speed adder carry generator circuit BCD code adder circuit
Half-sub tractor and full-sub tractor circuit Full adder and inverter circuit Arithmetic Logic Unit (ALU) circuit
Bit parity generator circuit Bit parity generator IC Hex to Dec/Dec to Hex digital conversion
- digit Dec-to-Hex conversion 8-bit Hex- to-Dec conversion
Encoder, Decoder & Multiplexer Logic Circuit Experiment Encoder circuit
Constructing a 4-to-2 encoder with basic gates Constructing a 9-to-4 encoder with TTL IC Decoder circuit
Constructing a 2-to-4 decoder with basic gates BCD-to- 7-segment decoder
DE multiplexer circuit Constructing a 2-output DE multiplexer with basic logic gates
Digitally controlled analog multiplexer/ DE multiplexer circuit The switch characteristics of CMOS level conversion circuit Flip-flop & Sequential Logic & Counter Circuit Experiment Flip-flop circuits Construct R-S flip-flop with basic logic gates Construct
D flip-flop with R-S flip-flops
Construct noise elimination circuit with R-S flip-flops Construct J- K flip-flop with D flip-flops
The J-K flip-flop of delay and differential
Construct master-slave J-K flip-flops with dual R-S flip-flops Construct shift register with D flip-flops
Preset left/right shift register J-K flip- flop counters
Asynchronous binary up counter Asynchronous
binary down counter Asynchronous decade up counter Synchronous binary counter Synchronous binary up counter Synchronous binary up/down counter Johnson counter
Ring counter
Oscillator/Pulsar; Load; Up/Down Counter Circuit Experiment Constructing Random Access Memory (RAM) with D flip-flop 64-bit Random Access Memory (RAM) circuit
Erasable Programmable Read Only Memory (EPROM) circuit Asynchronous four-bit binary up counter (use of 7493 IC) Presentable binary up/down counter
Presentable decimal up/down counter
Construct non-retrigger able circuit with the specialized CMOS IC Construct retrigger able circuit with CMOS IC
Construct a variable duty cycle oscillator circuit with dual constable multivibrators Memory, Matrix LED & DAC/ADC & MCU Interface Circuit Experiment Electronic EPROM (EEPROM) circuit
DAC0800 unipolar conversion circuit experiments Bipolar output conversion circuit
ADC0804 8-bit SAC analog-to-digital converter experiment Constructing dynamic scanning counter with single Chip microprocessor
Digital & Analog Timer, Pulse Generator Circuit Experiment Constructing oscillator circuit with basic logic gates Resistor- capacitor multivibrator
Resistor-capacitor crystal multi vibrator Constructing oscillator circuit with Schmitt gate Resistor-capacitor oscillator
Variable duty cycle resistor-capacitor oscillator 555 IC oscillator circuit
555 oscillator circuit
Voltage controlled oscillator circuit Mon stable multi vibrator circuits
Low-speed monostable multivibrator circuits Mon stable ON/OFF delay circuit Mono stable ON/OFF
timer circuit
Construct mono stable multi vibrator circuit with 555 IC Numerically-Controlled Oscillator (NCO) signal generator Precise- frequency function generator
Variable-duty-cycle NCO signal generator
Variable-ON/OFF delay and difference control experiments Precise 15-bit symmetric/asymmetric PWM generator Ramp- compare/SAR/Dual-slope ADC Experiment
Simple R-2R unipolar output D/A converter experiments 8-bit digital-ramp A/D converter experiment
8-bit successive-approximation A/D converter experiment 8-bit dual-slope A/D converter experiment
Keyboard & Display for Stepping Motor Position Control Stepper motor position/speed control experiment
Precise Digital Clock Timer Clock experiment
Timer experiment
Universal CPLD & Breadboard Experiment Create block diagram/schematic file in QUARTUS 16-bit Hex counter 16-bit decimal counter
16-bit presetable decimal up/down counter
16-bit scanning controller for 7-segment display
16-bit up/down counter and its indication by a 7-segment display Electronic music box
The traffic light with animation and time indication Equipment Required
Hand-held Digital Multi meter
Digital Storage Oscilloscope (DSO) : 100MHz bandwidth, 1GS/s sampling rate and FFT function or better.
Accessories: Connecting Wire: 2 set, User Manual: 2 Nos, Standard Accessories Warranty: 1 (One) year with services
