EAS Electronics

EAS AVRCPLD is our Atmel microcontroller/Xilinx CPLD digital design development board. Compatible with AVR AT90S8515/ATmega8515 processors and Xilinx XC9572/XC95108 CPLD's. Our development board includes on board parallel port programmers for both the AVR and Xilinx chips, no external programmer required.

AVRCPLD digital development board

AVRCPLD schematic (.pdf), layout (.pdf) and parts list.

Specifications:
Atmel AT90S8515 or ATmega8515 8 bit RISC microcontroller.
8-Kbyte In-System programmable Flash Program Memory, 544 byte internal SRAM, 512 Byte EEPROM.
Up to 8 MIPS throughput at 8 MHz.
Built in serial port and reset button.
32Kbyte external SRAM.
LCD display interface, HD44780 compatible.
Onboard STK200 compatible parallel port AVR programmer.
All I/O pins of micro are brought out to .1" space headers for easy external connections.

Xilinx XC9572 or XC95108 5V In-System programmable CPLD.
84 pin PLCC package with up to 65 I/O lines.
The XC95108 contains 108 macrocells with 2400 usable gates.
All I/O pins of CPLD are brought out to .1" space headers for easy external connections.
Onboard socket for oscillator.
Design, analyze and program your digital logic with the free Xilinx ISE WebPACK development software.
Onboard CPLD JTAG parallel port hardware programmer.
5 input buttons.

Maxim MAX1270 Multirange 0 to +10V, 0 to +5V, ±10V, ±5V, 8-Channel, 12-Bit ADC.
Maxim MAX525 4-Channel DAC.
Professional quality board with silkscreen.

Dimensions:
5.5" x 4.75".

Power requirements:
Requires external 8-12 volt DC supply.

Software:
The AVR8515FB was designed to take advantage of the many free AVR assemblers and compilers available on the web as well as any commercial versions.
We recommend and use Imagecraft ICCAVR C compiler.
There is also a "free for personal use" BASIC compiler available. RVK-Basic was featured in a series of "howto" articles in Nuts & Volts magazine.
WinAVR is the free windows Gnu GCC compiler. This a very good C compiler.
There is also SmallC for AVR available for free. We haven't tested this yet.
For info about other compilers available for the AVR, check out AVRfreaks.
Any STK200 compatible programming software can be used to program the AVR. The freely available PonyProg programmer works well.

To design, analyze and program the CPLD, download the free Xilinx ISE WebPACK development system.

Xilinx and C example programs may be downloaded from our WEB site.

Price:
Bare PC Board: $35.00 (Click here for image)

No assembled units or parts kit are available. Bare PC boards are in stock.

Please include $5 shipping and handling for destinations within the continental United States. All other areas, please contact us for shipping charges.

For those only interested in purchasing a single bare pcb board, shipping and handling can be avoided by sending us the cost of the pcb and include a self addressed stamped envelope with your order. Please attach three first class stamps to the envelope with your legible return address. We suggest using cardboard floppy disks envelopes that can be purchased at office supply stores. US only.

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