AVR-Chat

--- In AVR-Chat@yahoogroups.com, "Cosmin Buhu" <lists@b...> wrote:

> My Olimex JTAG updated in a minute
> without that procedure ??? Bought
> in May.

Cosmin,

Thanks for this information.

What do you mean when you say "updated"? The Olimex document I was 
referring to is about how to get the software loaded into the JTAG-
ICE in the first place from AVR Studio (using AVR prog).  You have to 
make an adapter cable from the JTAG socket to an ISP device such as 
the STK500.  This includes opening the case to get at the reset 
signal. Then, you have to use the ISP to flip the boot fuse. Then you 
disconnect the ISP, connect AVR Studio to the JTAG-ICE serial port, 
power up and use AVR prog. After loading the software, verification 
fails (the documentation says that this is OK, but I'd rather see 
verification happen). Then you have to go back to the ISP connection 
and clear out the boot fuse. Then you break down your adapter cabling 
and put the unit back together.

My JTAG-ICE clone has a pad that you short to ground to start the 
boot loader. You short this (with a paper-clip, for example) and 
power up. Then you use AVR prog. Verification works. Then you power 
down and up again and you're ready to roll.

What I've got so far is that one person here thinks my JTAG-ICE is a 
decent product but everyone else is happy with the Atmel, Olimex or 
roll-your-own options. This is good input and I will initially make 
only a small number, not expecting to sell that many after all.

Graham.