High Voltage Serial Programming Atmel

High voltage serial programming to the help.

High voltage serial programming atmel. On the previous page we have successfully programmed an attiny45 chip using avr studio and the stk500 programming tool. While i was expecting this huge leap in schematics and what a hobbyist can do nowadays i stil. Avr hv is high voltage parallel programmer for atmel avr series microcontrollers. If you really want to use high voltage serial programming to download a sketch then the instructions to implement a full blown programmer are documented in section 20 6 in the attiny85 datasheet.

The original atmel firmware is available in ebn format that is only supported by avrprog included in avrstudio stk500 stk500 ebn. Compare with other high voltage programming options like atmel stk500 this programmer is simple to build less expensive and also easy to use. Avr high voltage programming fuses rescue. High voltage programming to gain an i o pin.

There is another variation of programming available that is particularly useful for atmel tiny avr chips which we will now discuss. Atmel attiny datasheet chapter high voltage serial programming describes alternative way of programming attiny microcontroller. The code in this project uses arduino nano to re program attiny85 microcontroller fuses to default values. Half a year ago i restarted one of my old passions electronics.

Atmel changed the debugging feature of avr dragon with the latest firmware of avr studio 4 avr studio 5 and now it supports devices over 32 kb of. The avr dragon provides in system serial programming high voltage serial programming and parallel programming as well as jtag or debugwire emulation for parts with 32 kb of program memory or less. They could be implemented in a similar fashion to read and write fuse bit instructions in my sketch. I ve studied electronics in college but that happened during the middle age 20yrs ago.