[dorkbotpdx-blabber] Need some help with AVR
allyn at well.com
Tue Sep 28 23:55:13 EDT 2010
Thanks for the response; I have some questions in line below:
On Tue, 28 Sep 2010, David Madden wrote:
> All the small AVRs that I've used can be programmed very easily with a serial
> protocol, and fairly easily with a parallel protocol. ("Serial" means a
> SPI-like arrangement, not RS-232.) If you can control 2 outputs and 1 input,
> you can program most AVRs. This works unless you screw something up, at
> which point your only option is to use a parallel programmer to erase and
> reset the chip.
I don't think I have SPI on my desktop. What computers would have a SPI
serial that I can use for programming? Or is there such a thing as a USB
to SPI dongle that can go onto a linux PC?
>> If programming loading is done via USB, then does that mean that
>> there has to be an operating system already on the chip and which
>> I cannot override or replace?
If I have a USB bootloader, can I still use the USB for my own program?
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