TreadBot

[skimask]

i actually have been using "tremclad" clear on the boards after their etched. then i can drill through it, and it works like a solder mask. it seems to take a little more heat, but im mostly soldering headers and sockets, so it shouldnt make too much of a difference..

the ground plane on the top of the board, is right under the SD card reader. so i put it there to kinda block it from anything..

Good call on both points...

[mackrackit]

Like Mr_E said about the power traces.

NICE JOB!

[Darrel Taylor]

Just concentrating on the Power&Ground right now.

<img src=http://www.picbasic.co.uk/forum/attachment.php?attachmentid=1578&stc=1&d=117761534 8>

[mister_e]

mmm nice catch!

[Darrel Taylor]

I think the PING's backwards too.

<img src=http://www.picbasic.co.uk/forum/attachment.php?attachmentid=1579&stc=1&d=117761982 8>
<br>

[dragons_fire]

i have never had this many problems with my boards... i have fixed everything that was mentioned... i took out that cap, increased the sizes of power and ground traces (and made them go all around the board), and i flipped the "ping" around too..

i dont know how i got that one backwards, it was fine all the other times i designed this...

thanks guys....

[dragons_fire]

another update... im still working on trying to fix the computer in my car. its made by mitsubishi, adn apparently the caps go bad, and need to be changed.

i made a new board, and it all seems good. i think the old PIC is still good too (im not sure though). i tried to flash an LED on RF0, but its not working.

i can program fine, and then i can read the code from the PIC and its all the same. i think im just forgetting something somewhere.. and remember, im still somewhat new to this...


DEFINE OSC 20
define xt_OSC
CMCON = 7
ADCON1 = 7

start:
high portf.0

Pause 1000
low portf.0

pause 1000
GoTo start

End

[mister_e]

yeah i already repaired tons of those beauties awhile back, and yes they had Caps failure... but some has Microcontroller failure as well. Maybe you could have a look at the following which explain it to you better than i could
http://www.ecmtogo.com/ECMTips2.htm


And yes, they also have plenty faulty contact/wiring problem too... good old time

-------------------------------------

Your config fuse setting is wrong, i suggest you open the .INC file in the PBP folder to see how they set the default one AND to have a look at the following
http://www.picbasic.co.uk/forum/showthread.php?t=543

Make sure you really disable ALL analog stuff with your current settings AND that you disable the LVP mode in your config fuses.