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Re: [avrdude-dev] Add CRC to transfers?
From: |
Joerg Wunsch |
Subject: |
Re: [avrdude-dev] Add CRC to transfers? |
Date: |
Wed, 29 Apr 2009 06:14:37 +0200 |
User-agent: |
Mutt/1.5.11 |
As Gary Spivey wrote:
> Well, we can take a stab at it ... is there any documentation that
> would walk us through the steps of making a new programmer? As in -
> copy the stk500v2 file, change one line in a grammar file, ...
Not really, but it's essentially a copy&paste job.
However, you know that the STK500v2 protocol already features a simple
(XOR across all bytes of a packet) checksum, do you? The JTAG ICE
mkII protocol even has a full CRC implementation. So if you want, you
could perhaps use that protocol inside your bootloader.
--
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)