Reply by Ulf Samuelsson●September 21, 20092009-09-21
Frank-Christian Kr�gel skrev:
> Hi.
>
> The programming interface changed from ISP to PDI on XMega controllers.
> The JTAG MKII can program and debug the XMegas via PDI with a software
> update, but only the newer hardware revisions seem to have the required
> hardware support.
>
> I'm not very happy to discard my current hardware and spend 300� for
> another one.
> So my question is: What are the hardware differences between the older
> (non-PDI) and the newer (PDI-enabled) revisions?
>
> My guess is that pin 9 (TDI), which is used as PDI_DATA, is input only
> in the older revisions and bidirectional in the newer ones. So a new
> driver should do the trick.
>
> SMD rework tools are available.
>
My guess is that it is a complete new board for the updated ICE.
IIRC, The old H/W did not have enough performance to handle PDI.
I think everything produced after Aug 2006 has the new board.
You can check if you have a new ICE, but counting the LEDs.
The old one has three, and the new one has a fourth,
which is inside the plastic.
You can still program & debug, using the JTAG interface.
BR
Ulf Samuelsson
Reply by ●September 20, 20092009-09-20
Hi.
The programming interface changed from ISP to PDI on XMega controllers.
The JTAG MKII can program and debug the XMegas via PDI with a software
update, but only the newer hardware revisions seem to have the required
hardware support.
I'm not very happy to discard my current hardware and spend 300� for
another one.
So my question is: What are the hardware differences between the older
(non-PDI) and the newer (PDI-enabled) revisions?
My guess is that pin 9 (TDI), which is used as PDI_DATA, is input only
in the older revisions and bidirectional in the newer ones. So a new
driver should do the trick.
SMD rework tools are available.
--
Mit freundlichen Gr��en
Frank-Christian Kr�gel