STK521 User Guide

2-5

8194B–AVR–01/12

2.3

Programming the AVR

The Atmel AT90PWM81 can be programmed using both serial SPI and high-voltage parallel program-

ming. This section will explain how to connect the programming cables to successfully use one of these

two modes. The Atmel AVR Studio STK500 software is used in the same way as for other AVR parts.

Note:

The AT90PWM81 also supports Self Programming, see the Atmel AVR109 application note for

more information on this topic.

2.3.1

Serial in-system programming

Figure 2-3.

Serial in-system programming.

To program the AT90PWM81 using ISP programming mode, connect the 6-wire cable between the

ISP6PIN connector on the Atmel STK500 board and the ISP connector on the Atmel STK521 board as

shown in Figure 2-3. The device can be programmed using the Serial Programming mode in the AVR

Studio 4 STK500 software.