AVR-P40-8535 development board
Users Manual
All boards produced by Olimex are ROHS compliant
Revision A, October 2009
Copyright(c) 2009, OLIMEX Ltd, All rights reserved
Page1
INTRODUCTION
The
AVR Microcontroller
are low-power CMOS 8-bit controller based on the RISC
architecture. The AVR core combines a rich instruction set with general purpose
working registers. All the registers are directly connected to the Arithmetic Logic
Unit (ALU), allowing two independent registers to be accessed in one single
instruction executed in one clock cycle. The resulting architecture is more code
efficient while achieving throughputs up to ten times faster than conventional CISC
microcontrollers.
The
AVR-P40-8535
is prototype board for 40 pin AVR microcontrollers with
STKxxx compatible 10 pin ICSP connector
.
BOARD FEATURES
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STK200 compatible ICSP 5x2 pin connector for in-circuit programming with
AVR-PG1 or AVR-PG2
JTAG 5x2 pin connectr for in-circuit programming and debugging with
AVR-JTAG-USB and AVR-JTAG-L
RS232 Tx, Rx interface with MAX232 IC on socket
8 MHz crystal on socket (user can replace with any value)
reset IC ZM33064
reset button
general purpose push button
status LED connected to PB0 via removable jumper
DIL40 microcontroller socket
Power plug-in jack
selectable +3.3V / +5V power supply voltage regulator
extension pin headers for each uC pin
four mounting holes 3.3 mm (0.13")
GND bus
Vcc bus
FR-4, 1.5 mm (0,062"), green soldermask, white silkscreen component print
dimensions 100x80 mm (3.9x3.15")
Page2
ELECTROSTATIC WARNING
The AVR-P40-8535 board is shipped in protective anti-static packaging. The board
must not be subject to high electrostatic potentials. General practice for working
with static sensitive devices should be applied when working with this board.
BOARD USE REQUIREMENTS
Cables:
The cable you will need depends on the programmer/debugger you use. If
you use
AVR-PG1,
or
AVR-JTAG-L,
you will need RS232 cable, if you use
AVR-
PG2,
you will need LPT cable, if you use
AVR-ISP500, AVR-ISP500-TINY, AVR-
ISP500-ISO,
or
AVR-USB-JTAG
you will need 1.8 meter USB A-B cable.
Hardware:
Programmer/Debugger – one of the Olimex AVR Programmers: AVR-
PG1, AVR-PG2, AVR-ISP500, AVR-ISP500-TINY, AVR-ISP500-ISO, AVR-JTAG-L,
AVR-USB-JTAG.
Page3
SCHEMATIC
Page4
BOARD LAYOUT
POWER SUPPLY CIRCUIT
AVR-P40-8535
is typically power supplied with min 9.0V DC max 12.0V DC, or
min 6.0V AC max 9.0V AC.
RESET CIRCUIT
AVR-P40-8535
reset circuit includes pin 5 of ICSP connector, pin 6 of JTAG
connector, pin 9 of U3, Reset scheme – U1 and RESET button (RST).
CLOCK CIRCUIT
Quartz crystal 8MHz is connected to AVR Microcontroller pin 12 (XTAL2) and pin
13 (XTAL1).
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