Datasheet

Figure 13: Jumper conﬁguration for the STK500. Also note the location of the ATtiny25/45/85 MCU as

placed in the programming socket. In this photo, the ”orientation notch” of the MCU points upwards.

4.5.3 The MCU programming process

Using the BASCOM-AVR compiler and the STK500 programmer is more or less self-

explanatory. The STK500 should be connected to a PC via a serial line and then pro-

vided with appropriate DC power (polarity doesn’t matter, but it’s a good practice to

keep ground exposed and the positive voltage at the center pin of the connector). Then

insert the ATtiny25/45/85 MCU into the programming socket and switch on the STK500.

After compiling the program and receiving the No errors message in the BASCOM-

AVR status line, simply transfer the compiled program to the MCU by pressing <F4>

to bring up the programming window and click the program chip icon. The programming

window will close when the operation has been completed without errors.

Figure 14: The BASCOM-AVR programmer all set for working with an ATtiny85 MCU.

Figure 15: The BASCOM-AVR programming results/status report (CTRL-W keyboard shortcut).

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