AVR-Chat

It depends on the processor, even within the AVR family.

Some share programming with the SPI port. Some have a
separate set of pins for programming. You have to look at
the data sheet. Normally, it is under "Memory Programming".
A few of the really low pin count devices ONLY have
DebugWire.

Jim Wagner

On Thu, 15 Nov 2007 03:32:06 -0000
 "warp_kez" <warp_kez@hotmail.com> wrote:
> I apologise upfront if this has been asked before - again
> and again etc.
> 
> I am a little confused about programming the target uC,
> as I have only
> been working in simulators and the likes and in general
> just playing
> around.
> 
> The side that confuses me the most, is the wiring of the
> pin to the uC
> - is it as straight forward as MOSI to MOSI, MISO to
> MISO, SKT to SKT,
> and RST to RST, or is there more to it?
> 
> During my Google searches I have found a number of
> programming board
> circuits that are quite confusing as some use straight
> out wire,
> resistors, transistors, diodes or a combination from the
> interface to
> the chip.
> 
> The only thing that I do not find confusing, the board
> needs to have
> between 3.3v to 5v.
> 

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