Mega128 study board, mega128 development board

Introduction:

EasyAVR M128 SK is designed and manufactured AVRVI learning AVR development and production of tools to Atmega128 as the core, the bottom, form the core of plates, integrated simulation AVR JTAG ICE and STK500 ISP programmer, the user just have to have a computer learning system can be carried out.

Mega128 development board, mega128 learning board

Key features:

    1. The use of separation of the core board and main board in the form of the learning system, the core board can be used directly in products, rapid set up the system.
    2. The development of integrated on-board emulator AVR JTAG ICE and AVR ISP programmer.

       You just have to have a computer, without having to purchase and programmer simulator can be developed to learn.
    3. Signal conditioning circuits, input 0 ~ 10V, rail-to-rail signal conditioning.

It is not just a ATmega128 development board, he is a powerful development tool.

Packing List:

1, commissioning a piece of good ATmega128 development board (two-in-one onboard JTAG ISP, has been written into the self-test procedure)
2, ATmega128 board core 1
3, USB power line
4, the standard serial port (RS232) of a communications cable
5, information on a CD-ROM
6, Manual (experimental lecture) 1
7, the warranty card that is a list of orders
8, presented a LCD1602 LCD

AVR development board AVR Programmer AVR emulator AVR core board four-in-one

The development of on-board resources:

     ATmega128 CPU core board:
     1, M128-pin leads of all, you can easily use the DuPont for the first expansion connector, standard 254-pin distance, can be directly inserted in the wildcard on the board use, easy to carry out such experiments.
     2, m128 DB Core self-5V, 3V3 dual power supply regulator.
     3, m128 DB Core external crystal wide range of choices can be good to use on-board welding 14.7456M have the crystal, but also can expand according to their own needs, the crystal switch to achieve through the jumper.
     4, m128 DB Core with JTAG ISP standard interface
     5, m128 DB Core standards bring their own along the way RS232-TTL conversion circuitry to facilitate the realization of serial communication.
     Bottom:
     1, board JTAG emulator
     2, core-board to download STK500
     3,2 independent adjustable signal conditioning circuitry, controllable gain G = 0.1-10
     3,2 Road RS232 serial interface
     4,1 Road RS485 interface
     5,8 Road LED display
     6,4 dynamic 7-bit digital tube, to drive the use of 74HC595
     7,4 independent keys
     8, onboard IIC bus PCF8563 Real Time Clock Chip
     9, onboard IIC bus EEPROM AT24c01
     Active Road buzzer 10,1
     11,1 Road 18B20 temperature sensor interface, support for single-bus devices. (12820 optional: 10 yuan for each)
     12,1602 LCD interface (LCD send 1602)
     13,12232,12864 LCD interface (LCD12864 Optional: 80 yuan for each)

This product integrates learning AVR board, AVR development board, AVR programmer, AVR simulator, AVR core board functions, and can be used separately.

Learning stages:

     Development board AVR you are familiar with the application of a variety of resources, common peripherals onboard, allowing you to carry out a variety of convenient learning experiment. Onboard programming and simulation, and allows you to not have to worry about their own wiring is correct, plug-and-play.

Development stage:

     The core products can be used for the core board, board, though small, is a fully-equipped, the smallest of the basic circuit board system, allows you to easy, the standard pin, can be directly plugged into the core plate with 10,000 on-board use, easy to expand.

     Simulator, allowing you to develop more simple and easy process to find a variety of issues, be resolved to speed up the development.

     ISP feature allows you to disable the JTAG interface, save IO, and so that more accurate AD conversion.

Production stage:

     Programmer ISP official recommended way to download online, fast, programming off after the completion of any CPU resources.

     The development board is to enter the field of embedded professional development of entry-learning and development tools for students, beginners, engineers must bow good.

Experimental directory:

Analog-to-digital converter (AD):
   Single-channel AD acquisition, the results of Seven-Segment LED display
   Time-sharing dual-channel acquisition, the use of the results spread to PC serial port
Buzzer:
   Key detection, buzzer call
   PCF8563 time, a buzzer call 1s
Keyboard:
   Key detection, buzzer call
   Detection button, LED display
LED:
   Marquee procedures
   Detection button, LED display
Timer:
   T1 timer 1 seconds from time to time to achieve, the use of Seven-Segment LED display
Internal EEPROM:
   Using the boot record of the number of EEPROM, the results of Seven-Segment LED display
WDT:
   Watch dog timers are simple experiment
DS18B20:
   DS18B20 testing temperature, the results of Seven-Segment LED display
   DS18B20 testing temperature, the use of the results spread to PC serial port
SPI:
   SPI devices to use SPI driver 74HC595, the realization of the Seven-Segment LED display
TWI:
   TWI drivers use TWI devices 24C01
   TWI devices using TWI driver PCF8563
24C01:
   24C01 to read and write, using JTAG View results
   24C01 read and write the results to spread the use of PC serial port
PCF8563:
   PCF8563 timing, Seven-Segment LED Display Time
   PCF8563 timing, the time spread the use of PC serial port
   PCF8563 time, a buzzer call 1s
ST7920 (LCD128 * 64):
   ST7920 drives use LCD128 * 64 serial mode display
USART:
   Serial typewriter (the data will receive as output)
   PCF8563 timing, the time spread the use of PC serial port
   24C01 read and write the results to spread the use of PC serial port
   DS18B20 testing temperature, the use of the results spread to PC serial port