Hi Miklos,
>Try running at half the speed (8.7 KHz) to see if that works. Your
>Basestation also needs to be special, use the one we have on our
>website (it needs 125 kbps UART and a fastserial library).
Yes, you are right, I eliminated the red led blinking problem by increasing the 
sampling period in MicreadStreamTestC.nc : line 76 .I downloaded the 
BaseStation from 
http://szte-wsn.svn.sourceforge.net/viewvc/szte-wsn/tinyos-2.x/trunk/apps/BaseStation/
 and the FastSerial library from 
http://szte-wsn.svn.sourceforge.net/viewvc/szte-wsn/tinyos-2.x/trunk/tos/lib/FastSerial/.
 However, when I compiled  your BaseStation app for IRIS mote, I got an error 
apparently  because of this option in its Makefile : CFLAGS += 
-DPLATFORM_BAUDRATE=230400L.
when I removed this line everything  went fine but the yellow led in MIB520 was 
blinking which means queue overflow (serial transmission too slow) and loss 
packet percentage in the java application side was about 20%.So what was wrong ?
Regards,
Hafid
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