Skip to main content ↑ ↓

Show Posts

This section allows you to view all Show Posts made by this member. Note that you can only see Show Posts made in areas you currently have access to.

Messages - Sleepwalker3

2
Tools of the trade / Re: L-Mark LK-320P heat shrink/tube/label printer
Glad to see it worked for you. Just as a side note, hotmelt glue can corrode some types of (bare) wiring. This shouldn't be any issue in your application, but I did find this when repairing some tinned wiring on a laptop power supply cable where the glue was in direct contact with the tinned wiring.
3
Tools of the trade / Re: L-Mark LK-320P heat shrink/tube/label printer
A little bit of hot-melt glue should do fine. Put a little on the female header (keep it away from the connection end) and then pull the label over it. Then rotate it a bit to get the glue all around. Alternatively, you could use smaller heatshrink to build up a layer or two, then shrink the label over that.
5
CPLD programmable logic / Re: CPLD XC9572X read program
I just checked the datasheet for the XC9500 series and is ISP and has JTAG http://http://www.xilinx.com/support/documentation/data_sheets/ds057.pdf

It isn't complex to hook up that way usually, it's just a matter of connecting up a few pins with the Bus Pirate I believe, but some of the guys around here will have far more knowledge than me about that.


Some references that may help you (other than the obvious one - that datasheet above).

http://http://www.seeedstudio.com/depot/xc9572xl-cpld-development-board-p-799.html?cPath=174
http://http://dangerousprototypes.com/docs/CPLD:_Complex_programmable_logic_devices
http://http://dangerousprototypes.com/docs/Xilinx_CPLDs:_XC9500_vs_CoolRunner-II
http://www.digilentinc.com/result.cfm?cx=002723803879133527480%3A5gtbdh8wvda&cof=FORID%3A10%3BNB%3A1&ie=UTF-8&q=XC9500&sa=Search


Not sure if this is getting away from what you want, but it might provide helpful information.
7
CPLD programmable logic / Re: CPLD XC9572X read program
Most devices have some form of ISP (in-system programming), so probably don't need to be removed to program them (and therefore likely to read them also). I expect the XC9572 would fall into that category too.
8
Tools of the trade / Re: Controlling Hot Plates
@Sam512bb - yes Stencils are certainly the way to go if you're doing a few, but in my case it's mostly changing chips on very large boards that are already populated, so re-soldering that way becomes a lot more restricted with what you can do and impossible with a toaster oven or frypan.

@adnc - Smart-Prototyping http://http://smart-prototyping.com/ do cheap stainless stencils with or without frame, PCB's etc. and a number of the guys here use them and have been really happy with the results, so just another one to add to the list.
A good controller can be used on either an oven or a frypan (providing the controller can handle the power of course). Whatever way you go, don't use the oven/frypan for food after that.
9
CPLD programmable logic / Re: CPLD XC9572X read program
That depends, if you are talking about some commercial board, they may have a security bit set, in which case you wouldn't be able to read it. If you don't have another programmer, you could use a Bus Pirate to program the chip. I'm not sure if you can read the chip, but I expect you could, I do it with other PLDs. Somebody else here will know.
Check this page http://http://dangerousprototypes.com/forum/viewtopic.php?f=51&t=3575
10
Tools of the trade / Re: Controlling Hot Plates
If you are only doing a few boards here and there, then it's easiest just to hand solder them with a normal soldering station and tweezers, I've done lots of things like that, even fine pitched 0.5mm pitch TQFP devices with a couple of hundred pins.

You can get good results with a Toaster over or a Fry pan (Skillet), but the skillet does get hot spots, so it's best to add an aluminium plate about 3mm thick to even-out the heat if using that method.

Sparkfun did a few interesting articles on both the Toaster Oven and the Frying pan and they preferred the Frying Pan (Skillet). Worth checking out their articles and controller, though use Kit Ryan's software if using their controller and I'd suggest a Solid State Relay with heatsink, rather then a mechanical relay that they used.
12
Bus Pirate Support / Re: Recovering USB Stick - Help
Firstly, does the chip have any important data?  If not, then I wouldn't bother with it. If yes, then avoid trying to format it!
I'd inspect it very carefully under magnification to try to find if there are any shorts or broken connections. You could look up the data sheet for the memory and see if it has some sort of serial connection that you could tap into with the BP.

( ! ) Fatal error: Uncaught exception 'Elk_Exception' with message 'Please try again. If you come back to this error screen, report the error to an administrator.' in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
( ! ) Elk_Exception: Please try again. If you come back to this error screen, report the error to an administrator. in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
Call Stack
#TimeMemoryFunctionLocation
10.01672426968session_write_close ( )...(null):0
20.01712558544ElkArte\sources\subs\SessionHandler\DatabaseHandler->write( )...(null):0
30.01712559320Database_MySQL->query( ).../DatabaseHandler.php:119
40.06052698040Database_MySQL->error( ).../Db-mysql.class.php:273