G'day Bob, yes, the LED is blinking. I'm pretty sure its the USB interface that died inside the chip. I just can't explain why as all I did was to power-up the unit after a few month being left switched-off. Power supply voltage and current draw all look fine. Will keep you posted once I changed-over the FX2 chip. Seasons Greetings, Berndt
-----Ursprüngliche Nachricht----- Von: discuss-gnuradio-bounces+wulf=ping.net...@gnu.org [mailto:discuss-gnuradio-bounces+wulf=ping.net...@gnu.org] Im Auftrag von Bob Cameron Gesendet: Monday, 22 December 2008 11:29 AM An: discuss-gnuradio@gnu.org Betreff: Re: [Discuss-gnuradio] Dead USRP box? Hi Berndt Have you heard this happening on more than just our boards? Weird! I assume you have the same blinking LED so this excludes the EEPROM load from the problem? I use to work on some Alcatel data radios with the Altera chips and we had EEPROM failures every now and then. I have emailed Matt in case he offers a repair service. If not I might just wait till you have repaired yours. <grin> Cheers Bob Berndt Josef Wulf wrote: G'day Bob, this is exactly what happened to my USRP board. The board seems operational except it won't communicate. I've ordered the FX2 chip from DigiKey as I believe it to be faulty. Digikey actually managed to sent me the wrong part, a RAM chip, inside an otherwise correctly labled package. The hopefully correct part is on its way, so it shouldn't be long until we know if it fixed the problem. It just begs the question, what causes this chip to fail? As described by Bob, it was left off for several month and failed on subsequent power up. Seasons Greetings, cheerio Berndt On Sunday 21 December 2008 12:48:40 Bob Cameron wrote:
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