andrews's articles:

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Ram disks/interfacing to commodity memory 17 57 (7/7/2012 6:20:57 PM) comp.arch.embedded I'm considering a project here where I'll need a reasonable amount of storage in an otherwise "small" system. The spec hasn't been firmed up yet but I imagine we're looking at a 16 bitter CPU, probably a PI... Andrew

Small ARM board 28 49 (2/29/2012 9:03:37 AM) comp.arch.embedded Heard about these on the BBC's Today programme this morning and I have to say they look quite impressive at first glance: ARM processor, 256MB RAM, SD card slot, TV & audio out, dual USB, ethernet and GPIO for ... Andrew

Determining resolution of bitmap image 4 14 (10/14/2011 2:41:57 AM) comp.unix.questions Can anyone recommend any tools suitable for script-driven use that will determine the resolution (image height and width in pixels) of a bitmap image? Preferably one that will work on a broad range of image fo... Andrew

Non-intrusive continuity test 4 42 (9/3/2011 2:39:52 AM) comp.arch.embedded I've decided to russle up a simple electrical tester I've had in mind for some time. I'll say at the outset I'm intending this to be simple and built with a bare minimum of design effort and circuitry. The ... Andrew

semi-OT: cleaning microscopes 4 39 (4/14/2011 3:24:03 PM) comp.arch.embedded Does anyone have any good tips on cleaning soldering flux (mostly rosin) residue from microscope objectives? Other than not getting it on them in the first place of course? -- Andrew Smallshaw andrews@sdf.lo... Andrew

Console lead with remote power on support 2 21 (4/9/2011 8:37:29 AM) comp.sys.sun.hardware If anyone is interested I've just put up a page describing a serial lead I made up that (indirectly) connects the DTR line to the power on pin of an 8 pin mini-DIN keyboard port. The net effect of this is that... Andrew

SS5 PSU fan replacement 5 25 (6/23/2009 7:02:08 PM) comp.sys.sun.hardware Yes, I could find this out myself easily enough but that means taking a machine down, getting it out and opening it up so I thought I'd ask here first in case anyone knows offhand. The PSU fans on an SS5 I hav... Andrew

Shelf life of solder 9 38 (4/11/2009 9:50:35 PM) comp.arch.embedded Managed to fry a voltage regulator earlier today attempting to solder it in place. It just wasn't wetting properly and when I came to test it was well off the correct voltage - I noticed it had got a little wa... Andrew

Variable structure, constant length allocations 8 28 (11/10/2008 9:25:54 PM) comp.lang.c I'm working on a data structure that began life as a skip list derivative, but has evolved to the point that it now only has a passing resemblance to them. Each node of this structure has a few constant size v... Andrew

Compensating for mechanical play 14 37 (9/6/2007 5:25:56 PM) comp.arch.embedded I'm currently looking into the feasibility of a hobby project to construct a telescope mount with computerised goto capability (that is, you tell it where to point via computer rather than try to find objects m... Andrew

andrews's replies:

Items(253) /26 Next >> Last >|

C as a Subset of C++ (or C++ as a superset of C) 264 103 (8/26/2012 9:57:30 AM) comp.lang.c++ Isn't it a lame use of human time and effort to maintain completely separate C and C++ standards? As in the words of Betty White about Facebook: "It seems like an incredible waste of time". Why don't the tw... tinker454 (114)

adding debugs in c code 4 37 (9/6/2012 4:48:03 AM) comp.unix.programmer i often find adding debugs, ruins the readability of the code. i've checked many projects, where in often each debug statement spans 7 to 8 lines, which makes the code look ugly and even incomprehensible.... sinbad.sinbad (155)

Swapping logic 12 31 (9/23/2012 12:48:35 PM) comp.lang.c #include /*new logic for swapping*/ #include void main() { int x=20,y=30; printf("nos before swapping are %d and %d\n",x,y); x=x*y/(y=x); printf("nos after swapping are %d and %d\n",x,y); getch... bhat.zubair789 (1)

bug raport - about way of linking in c 134 82 (9/28/2012 12:00:33 PM) comp.lang.c [hullo, I am c fan from poland, deep involved in the spirit of c and structural coding, From few years I am working and thinking about some way of c language improvements. Sorry for my weak english] I ... profesor.fir (125)

urlencode in C 4 47 (10/11/2012 9:47:56 PM) comp.lang.c Hello, Can you people kindly show me how to encode a url search string in C? What I meant is something like this: $ python Python 2.7.3 (default, Jul 24 2012, 10:05:38) [GCC 4.7.0 20120507 (Red Hat 4.7.... bnrj.rudra (343)

Connect an old parallel HP LaserJet 6P printer to MacBook Pros (Mac OS X 10.5.8 and 10.8.2)? 56 62 (10/23/2012 3:31:27 AM) comp.sys.mac.system Hello. My client would like to know if it is possible to connect his very old parallel HP LaserJet 6P printer to his MacBook Pros since inkjet printers' inks are expensive compared to old reliable and ch... ant (767)

Linux Kernel Device Driver With C and C++ 38 54 (11/2/2012 4:07:05 AM) comp.lang.c Hi all, I hope this is the right place to ask this, but I want to write a device driver for Linux that offloads the main portion of the logic to a C++ file and `extern` the relevant pieces for inclusion in the... aditya.siram (54)

Debugger Design 5 36 (11/6/2012 5:49:13 AM) comp.arch.embedded Hi Guys I am studying about debugger , how they works and other stuffs related to that but I am not finding the right stuff so that I can design my own debugger for all ARM based processors and microcontro... piyushpandey

problem with feof ? 22 22 (1/28/2013 4:08:52 AM) comp.lang.c hey all, did c a while back, trying to get back into it. the following stub of code fails on the while(!feof(fp)) for some reason. could someone help? Thanks Please note that all variables here are indee... mark.babli (24)

Non Standard Ethernet pass through connector 9 15 (2/7/2013 12:41:48 PM) comp.arch.embedded I have been asked by a customer if we can mount my networked product in a I= P67 case.=20 It has three connectors, power, RS232(D connector) and Ethernet(RJ45 10/100= ) which need to pass through the case wa... steve.jones (18)