Hi fellows Been looking at really fast error checking. It appears that CRC can be implemented in hardware. The net shows me pretty pictures of how its done. ...
Chris Holme
cholme@...
Jun 12, 2004 3:16 pm
533
I'm assuming you want to CRC data across a serial link or something? Regards Mick....
Hi Mick Radio to be precise, probably 9600 baud Will be using the nrf401 X 2 from oatleys, just made the boards today for software CRC and then found out about...
Chris Holme
cholme@...
Jun 12, 2004 3:37 pm
535
Hi Chris, Hope lifes treating you well. :) The only hardware that comes to mind is something like ZiLOGs 8530 SCC that does multiprotocol stuff like NRZ, NRZI,...
... Hmm,... I think the CRC polynomial choice is limited there. Chris, do you _need_ a CRC?... more to the point, do you need a _particular_ CRC? Cheers, ...
Hi Dave Just playing around at the moment, with a view to implementing CRC8 or CRC16 over a radio link. I know how to do it in software (well at least I...
Chris Holme
cholme@...
Jun 13, 2004 2:11 am
538
... Choice depends on two factors mostly. 1. How long your data is going to be and 2. How reliable (or not) your RF link is. Interestingly, those two factors...
Hi Dave I've got some breadboards............., somewhere.........I think...... Yuk..........i lorst em arwl wen I fund out howta maka cirdcut ...
Chris Holme
cholme@...
Jun 13, 2004 5:48 am
540
Reminder from the Calendar of mugwa
http://groups.yahoo.com/group/mugwa/cal
Monthly MUGWA meeting
Tuesday June 15, 2004
7:30 pm - 12:30 am
(This event...
Yahoo! Reminder
reminders@...
Jun 13, 2004 11:25 am
541
Hey Andrew About the software that we talked about last night. The download is 180 meg or so. I have just burnt a cd with this and more on to save you pain of ...
Chris Holme
cholme@...
Jun 16, 2004 1:18 am
542
Hey Guys. I have just received an order of exotic PICS and AVRs from futurlec. Among the twenty odd mcus which I got for average 4 USD each are some rfPICS. ...
Chris Holme
cholme@...
Jun 17, 2004 11:26 pm
543
They are gerber files - standard files for PCB manufacture. If you go to www.pentalogix.com you can download a free Gerber viewer. BTW - I am in Sydney at the...
TA Regards Chris Holme ... From: Andrew Smallridge [mailto:asmallri@...] Sent: Friday, 18 June 2004 7:42 AM To: mugwa@yahoogroups.com Subject: Re:...
Chris Holme
cholme@...
Jun 18, 2004 12:24 am
545
I think Protel understands Gerbers, and you can import them. If you like, I'll have a look at work today. We've used some rfPICs at work so I could find out...
Hi Dave The problem is that protel is expecting an extension .g?? The files I have from microchip are .bot, .top, .lst etc I changed the extension of the .bot...
Chris Holme
cholme@...
Jun 18, 2004 5:28 am
547
Hey all. I am about to make orders with digikey and Dallas/maxim. Anybody want to piggy back an order and share postage and handling (dallas charges 50 bucks...
Chris Holme
cholme@...
Jun 18, 2004 9:25 am
548
... When are you ordering? I'm just getting part numbers right now. Regards Mick....
I need to get some 120 nH SMT inductors from digikey pretty quick, I am just waiting for them to reply to an offer that I made them. I want to order by sunday...
Chris Holme
cholme@...
Jun 18, 2004 10:31 am
550
... You can't get them from RS or Farnell locally? Cheers, David....
I don't know enough about this stuff to swap components around so I'm going with original part numbers where possible until I get a working radio. Once this...
Chris Holme
cholme@...
Jun 18, 2004 1:02 pm
552
Hi Chris, I'm back in Perth now. I have been busy ordering and receiving components form the US. I have had very good experiences with Mouser, DigiKey and...
Cheers Regards Chris Holme ... From: Andrew Smallridge [mailto:asmallri@...] Sent: Saturday, 19 June 2004 2:29 PM To: mugwa@yahoogroups.com Subject: Re:...
Chris Holme
cholme@...
Jun 19, 2004 10:13 am
555
Cheers as well Regards Chris Holme ... From: David Emrich [mailto:dave@...] Sent: Saturday, 19 June 2004 4:36 PM To: mugwa@yahoogroups.com ...
Chris Holme
cholme@...
Jun 19, 2004 10:13 am
556
Hi All, I have a 28 pin SSOP package SMD device that I need to remove from a PCB without damaging the device. Anyone have access to a tool I could use? I also...
... You're not going to believe this, but typically we use a Black n Decker paint-stripper heat gun for that task. After a small amount of practice, you'll...
All ready made it. They reckon my card is stuffed. I reckon they are just checking that I am the owner of the card and that I am kosher I didn't end up...
Chris Holme
cholme@...
Jun 23, 2004 6:12 am
560
Hi all, I have purchased some chips from the US which come with a warning that they are moisture sensitive and have to be "baked" before use. Anyone know what...
I got some samples labelled the same, I haven't used them yet but I was planning to ignore the baking bit for these reasons. I get the chip in a bag with...
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