Re: [avrdude-dev] Verify errors,

[Lou Cypher]

On 16 Jul 2003 at 10:44, Daniel Williamson wrote:

> Hi all,  I've recently started getting verification errors with avr dude
> when programming a mega 128, initially I thought it was just one board but all
> of them can fail, though it doesn't always do it.


I followed a bit of the discussion and just would like to contribute with 
some notes:

1. I'm using avrdude on two machines, an AthlonXP 1800+ and a Pentium 4 2.66, 
both running Windows XP pro, with an SPI adapter based on the STK200 one, I 
just modified it a bit to support in any case 3.3V ISP.
The only trouble I got was about the FlexLM licence manager (Cadence dongle), 
that even when stopped keeps running "for a while" -- the only workaround I 
found was to kill it and launch 3-4 times avrdude, reading the whole Flash 
(even interrupting it), until that darn driver was really shut down: to check 
the "port-is-mine" status I just checked a LED I applied on the RESET line 
(the dongle driver resets data lines on parallel port).

2. Isn't worth trying service pack 4 on Windows 2000?

3. The part I programmed is an ATmega128L-8, running at 4 MHz with an 
external resonator; I programmed some different boards, less than a few tens 
of times totally.

With the assumptions above, I wouldn't say it's a timing problem cause of the 
processor speed, but more a "different approach" that some part of W2K has 
with that port handling, or a conflicting driver.

Lou