Bits from the Basement
   


Random tidbits Bdale thinks are worth documenting.

Bdale Garbee
bdale@gag.com

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Sun, 19 Dec 2004

It Thinks It's a PDP 11/53 Now
Managed to find my old Xeltec SuperPro and some 27256 parts buried in the far corner of the basement, and so with the help of Jonathan Engdahl's KDJ11-D/S page, my CPU board now thinks it's part of an 11/53 instead of a Decserver 550. While I had the board out of the chassis, I changed the console serial port to 38k4, leaving the second serial port at 9k6 since that's what vtserver expects.

Telling the monitor to boot from SCSI disk flashes the drive activity LED, then tells me the media isn't bootable. That makes sense since I haven't put any suitable bits on the drive yet... and suggests I may be only another serial cable away from trying to install 2.11bsd.

[/bdale/retro/pdp11] permanent link

SSRP is Working!
After some iteration, I now have a full build of GNU Radio from CVS running on Debian with 2.6.8.1 kernel on my HP tc1100 tablet, including the SSRP firmware, utilities, and examples. And it all seems to work! Here's a window dump of my first FFT with a signal generator feeding an unmodulated 1 Mhz carrier into the board. And here's a picture of the test setup after I dialed the generator up to 2 Mhz.

[/bdale/sdr] permanent link