Hi, Disclaimer: I'm completely new to AVR MCUs.
Im willing to build an USB-I2C adapter, as described on http://www.harbaum.org/till/i2c_tiny_usb/index.shtml If I understand it correctly, since it uses PB5 as GPIO, I have to use the HVSP programming mode. (I'm not sure about that, but it seems it might be possible to program it, irreversibly, with ISP.) Browsing the internet, I found a few HVSP programmers, including a few do-it-yourself ones, but all of them are rather expensive and require big programmable chips. On the other hand, there are many ultra-cheap ISP programmers, including ones using only a few resistors, where the computer software is expected to perform all the bit-banging. I guess it should be possible to build an ultra-cheap HVSP programmer, using only a few off-the-shelf components, perhaps requiring an external power supply, and where the computer software does all the bit-banging. Is there any known one? Of course, I'd prefer it to work with avrdude, or any other free software running on linux. Cheers, Nicolas Boullis PS: sorry if this message is a duplicate. I first sent it while unsubscribed, but did not see it reach the archive, so I thought the list could be subscribers-only and subscribed. _______________________________________________ AVR-chat mailing list AVR-chat@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-chat
