Atmel XMEGA-A1 Xplained Evaluation Board ATAVRXPLAIN ATAVRXPLAIN Data Sheet

 

8203D-AVR-04/10 

Different revisions of the Xplain kit is released, these revisions are not fully identical it 
can therefore be relevant to identify the board used. 

Revision 1 of the Xplain kit can be identified by not having a bar-code sticker on the 
back side. 

Table 8-1. Xplain revision 1 – known issues. 

Speaker is noisy during programming and 
debugging of the ATxmega128A1 when 
using JTAG. 

Problem due to cross-talk contaminating 
the audio amplifier input. 

Use the PDI interface or remove resistor 
R305. 

AT90USB1287 cannot connect to FLIP 
programming software to reprogram the 
AT90USB1287 application section of the 
flash. 

No bootloader programmed in the 
AT90USB1287 

Upgrade to the AT90USB1287 with the 
latest firmware using an external 
programming tool such as the JTAG ICE 
mkII. 

Revision 2 of the Xplain kit can be identified by a bar-code sticker on the back side 
with the following product ID: A09-0560/2. 

Table 8-2. Difference between Xplain revision 1 and revision 2. 

Dataflash changed to 
45DB642D-CNU 

The 45DB642D-CNU is replacing the 45DB041D-SU. 

AT90USB1287 bootloader 

Bootloader is entered by shorting pin 1 and 2 on the J200. 

R305 removed 

To eliminate noise on speaker during JTAG programming 
and debugging of the ATxmega128A1. 

Two jumpers added – 
default placed on the J101 
and J102. 

For convenience of the end-user. 

Revision 3 of the Xplain kit can be identified by a bar-code sticker on the back side 
with the following product ID: A09-0560/3. 

Table 8-3. Difference between Xplain revision 2 and revision 3. 

Series resistors on SDRAM 
lines removed 

Not required – and therefore removed. 

Shunt resistor (R105) added 

This is a zero ohm resistor that enables measurement of the 
ATxmega128A1 current consumption. 

Audio amplifier is default off 
(R300 is pulling down the 
SD line of the U300). 

Reduce power consumption and reduce faint noise from 
speaker.