![codevision 2.06 codevision 2.06](https://demo.pdfslide.net/img/380x512/reader024/reader/2021022208/55720dee497959fc0b8c6c5a/r-2.jpg)
![codevision 2.06 codevision 2.06](https://img.informer.com/screenshots/118/118508_2.gif)
I used a quartz 8Mhz with 22uF ceramic caps. The micro must be powered up and have the xtals setup. You connect that cable from the computer's 25 pin printer port to the pins of the micro. Ive attatched a diagram of the cheap home-made cable I made to do this (db25 with 4 resistors). Ive used the very latest version of PonyProg software 2.06a to download a hex file to a mega32.
#CODEVISION 2.06 SERIAL#
In my commercial environment I find the US$30 for the ATAVRISP a good value, as it includes 6 and 10 pin adapter tails, the serial cable, and support upgrades from Atmel for new chips. Everyone else viewing this Forum can decide for themselves. I find this faster and much more reliable than parallel port methods. With the STK500, ATAVRISP, or AVR910-based solutions, another AVR receives the message, and sends the correct programming sequence to the target. With the serial port systems, a message is sent with a piece of the programming task to an "intelligent" microcontroller target using well-known serial port drivers. And protected mode operating systems need an extra driver between the application and the pins.
![codevision 2.06 codevision 2.06](http://docplayer.org/docs-images/61/45679455/images/3-0.png)
With the parallel-port programmers, the signals are controlled directly from a Windows application program. The point, from my vote for serial port programming on a Windows PC to do SPI-port ISP on an AVR based target, is that the interface chip that does the programming can more easily control the progrmaming signals. Or build-your-own using application note AVR910. "You can get the ATAVRISP from DigiKey for US$29 which is the programming front-end of the STK500, plug it into your serial port on your Windows PC, and it will look just like an STK500 to the 3 free tools for programming that I listed above.