AVR Studio 4 Using Atmel AVR ISP Programmer

Overview

The project illustrates the use of AVR ISP to develop software in an AVR Studio 4 environment to directly program chips.

Explanation

There are some sites that are populated with simplified version of AVR ISP programmer that works with original Atmel programming software. Their versions are usually simplified AVR ISP which makes them work with Pony Prog or AVR DUDE.

In the design, any RS232 driver like MAX232 or any similar like DS275 is being represented by IC1. The connecting wire from AVR ISP to AVR board should not be exceeding 15cm length. The PCB can be built in a simple way if it is made up of one layer. Since the version of microcontroller is obsolete, the firmware is written for AT90S2313 and should be working on ATtiny2313 because this microcontroller is compatible with AT90S2313. Most of AVR microcontrollers that support ISP can be programmed by this device.

Since the target device has to use 4MHz of crystal, the firmware is written to work with this crystal frequency. If the target board runs at 8MHz, then the firmware has to be re-compiled to run at 8MHz by using the AVRASM.