ABC Atmel AVR Maxi Development Board
The
ABC Maxi board has an open architecture design based on Atmel's AVR AT90S8535
RISC microcontroller and is ideal for developing new designs. ABC is an acronym
for AVR Basic Controller.
The board has 4 power MOSFETs, 4 opto isolated inputs, 8 10-bit analogue inputs, prototyping area, up to 2MB add-on Flash memory and on-board RS485 transceiver make the ABC Maxi board ideally suited for prototyping networked industrial control applications.
The board employs the ATMEL AVR RISC 8535 microcontroller technology. Most instructions are single cycle giving up to 8 million instructions per second on the ABC boards.
The ABC Maxi Atmel AVR Starter Kit includes a BASIC compiler, which allows you to develop your code using the easy-to-learn BASIC programming language. You can program the AVR on-board device in-system with the ABCEdit programming software and connect to a PC's serial port (RS232), thanks to on-board RS232 level shifters and the AVR's built-in UART.
This user friendly software interfaces with ALL of the required tools on the ABC Atmel AVR Boards to enable you to get started quickly without a time consuming learning curve. You can download a trial version of ABCEdit here.
Technical Specifications
Microcontroller
- ATMEL AVR AT90S8535
- Clock Speed - 8 MHz
Memory
- 8 Kb of In-System Programmable Flash (1000 write/erase cycles)
- 512 bytes internal SRAM
- 512 bytes EEPROM
Peripherals
- Two 8 bit Timer/Counters with 32768 Crystal for Real Time Clock
- One 16 bit Timer/Counter
- Programmable serial UART
- 8 channel, 10 bit Audio to Digital Converter (ADC)
- 32 programmable I/O lines
Special Features
- External and internal interrupt modes
- Real Time Clock
- Power saving modes
- Operating System - No build-in operating system or monitor. All resources available to the user.
- Supply Voltage: 9Vdc / 200mA (we recommend a regulated power supply Order Code PSU443)
Connectors and Functions
- Two Power Connectors to supply power to ABC
- Serial (RS232) Connector to PC. Standard 9 way straight through cable is used. On board TTL/RS232 level converter. Plug the other end into serial port of PC. RTS/CTS is available as well.
- Programming Connector for in-system programming. Connects to parallel port of PC.
- RS485 connector. 4 pin screw terminal for connecting ABC to the RS485 network. On board RS485 circuit.
- 8 pins I/O connector. This is a screw terminal connector for analogue inputs (channels 0,1,2,3 and one I/O pin, which is selectable).
- Analogue input range 0-5V
- 12 pins I/O connector. This is a screw terminal connector for I/O pins. I/Os are bi-directional with internal pull-up resistors. Output buffers can sink 20mA current (direct LED drive)
- MOSFET outputs active low to GND capable of driving 8A current.
- LCD Connector. 14 pin DIL connector for 2-16 LCD display (Order Code 30B06). If not used for LCD can be used as I/O.
- 3.5mm Phone Jack for connection to an external speaker for toner generation and speech synthesis through the onboard amplifier.
- Atmel 1/2Mb to 2Mb Data Flash onboard option.
- LCD 16 x 2 option as well
- On board 4 x 12A open drain MOSFETs and 4 Opto-isolated Inputs.
- For pin assignments on connectors see schematic diagram within software.
Physical dimensions
- ABC Maxi comes in a form of stand alone board and fits into standard rail mounted 72 mm wide enclosure approx. size 120 x 72 x 20 mm.
Additional Information
ABC
Maxi Starter Pack (Order Code ABCMAXISP)
The ABC Maxi can be purchased as a 'Starter Pack' containing:
- One pre-assembled ABC Maxi Board
- One parallel and one serial leads for connection to your PC
- ABC Edit & Microcontroller Printed Manual
- CDROM containing:
- AVR Edit Basic Controller / Inline Assembler Software on CDROM for Windows 95, Windows '98, Windows ME and NT featuring an Assembler, BASIC compiler and in-system programmer. A DOS version compiler is also supplied.
- Help Files
- ABC Mini and Maxi schematics and PCB layout diagrams
- Sample programs
- Details of the ABC Internet Support Group / Users Forum
The pre-assembled ABC Maxi Boards are also available separately (Order Code ABCMAXIB).
| Product Code | Description | Price each exc. VAT (GB Pounds £) | INC. VAT each 1+ | Quantity | |
|---|---|---|---|---|---|
| 1+ | 5+ | ||||
| ABCMAXISP | ABC MAXI Starter Pack | £76.55 | £65.07 | GB£89.95 | |
| ABCMAXIB | ABC MAXI Board Only | £59.53 | £50.60 | GB£69.95 | |
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