What is easyAVR128?
The easyAVR128 Board is a complete solution for fast and simple development of embedded applications by using a new Atmel ATmega128A device connected to 7.3728Mhz oscillator.It has a bootloader inside the ATmega128A,and it allows self-programming very easily without an external programmer or debugger.
What is on board?
Key features:
- Bootloader program loaded into the ATmega128A microcontroller;
- CP2102 USB to UART converter for RS232 communication and bootloader programming.
- 5V and 3.3V power supply;
- RS232 Circuit with DB9 connector;
- 5V,3.3V and GND PINOUTs for DIY;
- 8 user LEDs;
- System Reset Key;
- DS1302 Real Time Clock;
- 24C02 eeprom;
- Standard ISP6 connector;
- Standard ISP10 connector;
- Standard JTAG connector;
- 8 user KEYs;
- Stepmotor with driver circuit;
- Buzzer with driver circuit;
- Standard LCD1602 socket;
- Standard LCD12864 socket;
- ADC0 and ADC1 input;
- DS18B20 Temp sensor socket;
- INT0 and INT1 input;
- 8 digit 7-segment LED display;
- All IOs are taken out;
Bootloader Self-programming
The board comes with a bootloader inside,which allow you to upload .HEX file very easily without an external programmer.
1.Run “AVRUBD” software
2.Go to the Device Manager to see which com port is created
3.Com Port Setting
Enter Option/Comport to set the correct Com Port,and click “OK”.
4.Load HEX file
Enter File/Load to load HEX file into the AVRUBD software,and click “Open”.
5.Start to Program
Press RESET key to force the AVR device into the bootloader MODE,and then you will see the BOOT led blinking with about 3Hz frequency.At this time,the AVR device will stay in bootloader MODE within 5s.During this time,you can enter Operation/Download or press F9 key(PC) to download HEX file.
After downloading is finished,the application program will be running.If you want to upgrade the new HEX firmware you have to press RESET key again to enter bootloader MODE.
The CD data includes:
1)easyAVR128 V2.0 User Manual.pdf
2)Source.zip
3)easyAVR128 SCH.pdf
4)datasheet.zip
5)CP2102 SETUP User Manual.pdf
6)cp2102 DRIVER.rar
7)BOOTLOADER.rar
8)Bootloader software.rar
