[Discuss-gnuradio] SSRP 7/13

[David Carr]

Hi all,

The IO test board is complete and tested.  Pictures are in the I/O test 
board section at: oscar.dcarr.org/ssrp/
Secondly, I've succeeded in moving ~16MB/s from the test board to my 
laptop using some simple bulk transfer firmware.  This is fast enough 
but it seems a little slow considering I have the 82801DB (ICH4) 
chipset.  I used 512 byte packets to fx2_programmer reading 4096 byte 
chunks.  Any suggestions?

Its getting pretty exciting to see actual data moving around for the 
first time.  Now the the I/O board is complete I can focus on the
LTC1746 board.  I've got a Rev. 0 schematic but I have a PCB problem.  
The company, Olimex, I use to produce 8mil boards is on vacation until 
Sept. 1.  Not good.  I currently use the toner transfer PCB production 
method and my test 8 mil pads didn't turn out well.
Does anyone have any cheap PCB sugguestions or perhaps a TSSOP48 .5mm to 
(something >= 10mil) adapter PCB?  Robert, had a picture of one of the 
Om-Adapt adapter boards on his website 
(http://273k.net/gnuradio/myssrp0/).  Does anyone have a vendor for 
these or similar?  I'm also willing to try a photoresist PCB technique, 
is 8mil resolution achieveable?

Thanks for your support,
David Carr