Anybody know the magic incantations required to use the Vref- and Vref+ inputs on a PIC18F2620? The ADC is working when the Vref- and Vref+ inputs are disabled...
6214
tellurian
i_tellurian
Jun 2, 2005 3:53 pm
Ron, How are you generating + & - Vref? They should be very low impedance 50 ohms or less. For example the MCP1541 (MicroChip's 4.096V reference) has an output...
6215
Ron Clough
khufuca
Jun 2, 2005 4:10 pm
Thanks Allen, I'm using a resistor voltage divider! I'll try buffering with op-amps. Cheers, RonC ... it out!...
6216
tellurian
i_tellurian
Jun 2, 2005 5:10 pm
Just out of curiosity ... ... __________________________________ Discover Yahoo! Have fun online with music videos, cool games, IM and more. Check it out! ...
6217
Ron Clough
khufuca
Jun 2, 2005 5:54 pm
VCC ... 100k ... +--- Vref- ... 50k pot ... GND and VCC ... 50k pot ... +--- Vref+ ... 100k ... GND ... out!...
6218
Ron Clough
khufuca
Jun 2, 2005 11:16 pm
Wooo Whooo . . . Allen, you're a genius :) Buffering the references solved the problem. With Thanks, RonC ... Check...
6219
ORE_bits@yahoogroups....
Jun 12, 2005 11:02 pm
We would like to remind you of this upcoming event. monthly meeting Date: Monday, June 13, 2005 Time: 7:00PM - 9:00PM EDT (GMT-04:00) We'll be meeting in our...
6220
Mordechai Brodt
mordomanca
Jun 14, 2005 1:18 pm
I received this yesterday. Mordechai **Please do not respond to this email** Dear Customer, Some of you may have experienced the non availability of the...
6221
Mark Weston
weston54
Jun 15, 2005 11:50 am
Microchip offer. I smell a marketing scheme. Mark Weston __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the...
6222
Aaron Ramsey
aaron_ramsey
Jun 15, 2005 11:14 pm
... And free shipping is bad because.... it promotes Microchip? Aaron...
6223
Mark Weston
weston54
Jun 16, 2005 12:05 pm
No, no, not at all. It's actually quite a good scheme. You're likely to buy, or buy more Microchip product because of free shipping. Everybody wins. I just...
6224
Laframboise, Richard-...
rilafram@...
Jun 16, 2005 6:33 pm
Hi guys, I've been playing hard with the F877 to learn about PWM with the CCP modules. I was having problems because of some glaring mistake that I've figured...
6225
Randy Gamage
rgamage
Jun 16, 2005 10:50 pm
Just a note to let everyone know I've recently added lots of new features to the Gamoto motor driver. Here's a quick summary- - R/C Pulse input allows easy...
6226
Aaron Ramsey
aaron_ramsey
Jun 17, 2005 12:02 am
... It could be that your logic probe is loading down the pin and the oscillations aren't able to continue with the load. Does the chip still operate normally...
6227
Norm Kummer
norm_kummer
Jun 17, 2005 12:12 am
Richard, Well the most obvious answer is if it still works, then you haven't damaged the PIC :). The fact that the logic probe works only on OCS1 may be fine ...
6228
Aaron Ramsey
aaron_ramsey
Jun 17, 2005 1:39 am
... Actually, their website was down. I wasn't on it at the time, but Ron Clough (one of our members) was trying to get some datasheets from there and wasn't...
6229
stephane641
Jun 17, 2005 3:49 am
wow! that's a big day! Aaron is using an AVR!!! Seriously though, if you need help, let me know. For a windows-fan like you I recommend WinAVR ...
6230
Laframboise, Richard-...
rilafram@...
Jun 17, 2005 11:57 am
Good morning guys, I've burned in a simple program that flashes an LED and it works. So I take it the chip is still functionning properly. Back to learning...
6231
Aaron Ramsey
aaron_ramsey
Jun 18, 2005 12:50 pm
Hi all, ... So... any ideas out there? Guy: is Dovercourt available perhaps? Aaron...
6232
Micro
micro223
Jun 21, 2005 5:42 am
I can check, unless someone has a better location in mind... Guy ... __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo!...
6233
stephane641
Jun 21, 2005 8:26 pm
Lots of pictures. Nice for beginners and experts! http://robo1.cs.gmu.edu/~sean/cs499wiki/pmwiki.php?n=Robot.Home Later,...
6234
Chris Ledderhof
chrisl_ca
Jun 23, 2005 3:02 pm
I know there are more than a few of us who would be interested in one of these: (Link to a 12MB video) http://www.alldumb.com/item/12270/ Website:...
6235
jim kiskis
porthos_6
Jun 23, 2005 3:44 pm
I will be ordering the plans my self :) ... From: ORE_bits@yahoogroups.com [mailto:ORE_bits@yahoogroups.com]On Behalf Of Chris Ledderhof Sent: Thursday, June...
6236
Pierre Audette
pfaudette
Jun 23, 2005 5:24 pm
Some details, picts and plans in this forum under 'hydroplane' topics: http://www.rcgroups.com/forums/forumdisplay.php?s=&daysprune=&f=18 I've got all the bits...
6237
Andrew Williams
labrat_3k
Jun 30, 2005 1:00 pm
ORE Group, FYI - my ISP (I-STOP) decided to get out of the co-location business with zero notification. I have had scramble to relocate the Film-Can server....
6238
haqmaq
Jun 30, 2005 6:08 pm
University sponsored. . . .thanks for the vote of confidence ppl. . . ... put it ... of ... mentioned at ... maze. ... alarm ... still ... Most of ... only ......
6239
aaron_ramsey
Jun 30, 2005 6:10 pm
No sweat. I've got a place for it with plenty of spare bandwidth. I'll move it over this weekend (assuming that the DNS for the site starts to resolve). Thanks...
6240
aaron_ramsey
Jun 30, 2005 6:15 pm
Well... that was my comment so I guess I'll respond. I've been to university for electrical engineering and I know what the course loads are like and what sort...
6241
Sylvain Bergeron
wolfie840ca
Jun 30, 2005 6:20 pm
I have a Linux box that is sitting doing absolutely nothing and it is connected to Sympatico. We could use the space on my drive (I have close to 120GB free...
6242
Grizzly
robomaster47
Jun 30, 2005 6:32 pm
I hope you were not referring to Alex Brown and myself (John Edwards) when you said University sponsored. Alex is a retired aircraft software design engineer...
