Atmel Atmega32 Testing, Experiment Board

Pcb and schematic (sch) drawings are prepared with P-CAD 2004 Schematic V18.00.2690 and there are also test codes prepared in c language. Features of Atmega32 board:

7v – 12v power supply (4 mm sockets) with reverse polarity protection

Indication of the status of the eight logic outputs by 8 LEDs (optional depending on the wiring of the HE10 input connector: PORTA, PORTB, PORTC, PORTD or encrypted keyboard outputs)

8 inverters to create logic levels on logic inputs

2 potentiometers for generating adjustable voltages on analog inputs

4 HE10 connectors to connect ATMEGA32’s ports to keyboard, LCD display, LEDs, inverters or other boards that allow creating logic levels

1 HE10 connector for ISP connection (ATMEGA32 programming)

1 HE10 connector for JTAG connection (ATMEGA32 emulation)

1 16-key keyboard, encoding and output on HE10 connector

1 LCD screen 2×16 characters, input on HE10 connector

1 female DB9 serial connector, for example to communicate with a PC

Atmel Atmega32 development board

Files:

usart.h: library “usart.lib”: associated header file.

usart.lib: “usart.lib” library containing functions that can be used with serial connection: display of chain on PC (Terater pro terminal), hexadecimal binary numbers.

lcd2x16.h: Library “lcd2x16.lib” associated header file

lcd2x16.lib: The “lcd2x16.lib” library that contains functions that can be used with an LCD display and allows numbers (decimal, hexadecimal, binary) or strings to be displayed on a 2 x 16 character LCD display.

ttpro313.zip: “Teraterm Pro” version 3.1 installation file: terminal which, among other things, allows communication via serial connection between a PC and an ATMEGA microcontroller

cvavre.zip: “CodeVision AVR C Compiler” installation file (CodeVision AVR v2.03.5, 2k limited)

test.c: Application example with CAN, keyboard, LCD screen and serial connection (source file)

test.prj: Application example with CAN, keyboard, LCD screen and serial connection (project file)

pwm.c: Application example: PWM signal generation (source file)

pwm.prj: Application example: Generating the PWM signal (project file)

devel_atmega32.PCB: development board for ATMEGA 32 (PCB in PCAD format)

devel_atmega32.SCH: Development Board (PCAD Diagram) for ATMEGA 32

centtronic.SCH: board with Centronic connector on PC side and HE10 connector on development board side, allowing programming of ATMEGA32 microcontroller (schematic in PCAD format)

centtronics.PCB: Board with Centronic connector on PC side and HE10 connector on development board side, allows programming of ATMEGA32 microcontroller (printed in PCAD format)

Source: stielec.free.fr/ Atmel Atmega32 Testing development board PCB schematic and sapmle code alternative link: