Wow bruce Thanks. I did receive it today and I am planning on working on it later tonight (the cd was in there and those files look very helpful). I am going to attach what I have as of now for both my receiving and transmitting chip (both 16F684). I would like you guys to correct me on some stuff because I had it working the day prior to yesterday (but it was just the serin and serout without the "get_direction" label and the forward, backwards, left, right labels as well), but now it has stopped working.
Here is the code for the 16F684 that will be connected to the transmitter:
*also, how can I make a circuit with about 4 buttons using my 7mm tact switches so that I can get the values and send them out over serout?
**what is needed...I am still unclear on this, is it a 10k resistor or something. A simple diagram would be helpful (maybe with an accompanying piece of code)
***keep in mind that this is my first project ever in PBP, I have pieced stuff together from other's posts and stuff I have read. I have managed to get the somewhat good amount of knowledge that I possess of assembly programming (and all the stuff that you may learn from it) to better understand my code.
Transmitter chip code (beta - malfunctioning?):
*I was playing with the data being sent out and making it my own numbers so it is just a loop between start and the serout command...so I can test the receiver pic...which isn't working for some reason
Code:'**************************************************************** '* Name : Electric car (4 motors and remote controlled) for Science Olympiad* '* Author : GiroTechs * '* Notice : Copyright (c) 2009 GiroTechs * '* : All Rights Reserved * '* Date : 1/14/2009 * '* Version : 1.0 * '* Notes : this is a single attempt to make a remote controller electric * '* : vehicle with both reverse and forward plus steering * '* : capabilities as well as a stop button. * '* major code piece that baffled me came from: '*http://www.picbasic.co.uk/forum/showthread.php?p=50584#post50584 '* THANK YOU n qwerty! '**************************************************************** ' ' power ^ ground ' RA5 RA0 ' RA4 RA1 ' RA3 RA2 ' RC5 RC0 ' RC4 RC1 ' RC3 RC2 ' Include "modedefs.bas" ' ' ——-[ Equates ]———————————————————————————- ' FLbutton var porta.0 ;left side forward FRbutton var porta.5 'right side forwad BLbutton var porta.1 ;left side backwards BRbutton var porta.4 ;right side backwards rightbutton var portc.5 ;just turn right leftbutton var porta.2 ;just turn left act1 var word act2 var word ;Create a changing pulsewidth signal from 10 usec wide to 655 ;msec wide. pulsewidth var word ;end equates ;Main start start: TRISA=%00000000 TRISC=%00000010 OPTION_REG.7=0 'Enable Pull-Up's on PORTB ANSEL = 0 'turns off analogue inputs OSCCON =$60 'sets internal osc to 4MHz TRAIN VAR BYTE movement1 VAR WORD movement2 var word direction var word turns var word PORTc.1 = 1 'turn enable pin high TRAIN=$55 movement1 = 4 movement2 = 1 direction = movement1 turns = movement2 SEROUT PORTc.1,T2400,[TRAIN,TRAIN,TRAIN,TRAIN,TRAIN,9,movement1,movement2] goto start END ; ;subroutines ; get_actions: if leftbutton = 0 then turns = 1 ;turns = 1 means a left turn else turns = 0 ;no turn at all endif if rightbutton = 0 then turns = 2 ;turn = 2 means a right turn else turns = 0 ;no turn at all endif if FLbutton = 0 then direction = 1 else direction = 0 endif if Frbutton = 0 then direction = 2 else direction = 0 endif goto start ;now we have all the buttons pressed at this small ;interval of time...we need to send it. ;***RAN out of space on this post, you will need to get this part of code ;from the next one below. ;
My Receiving pic's code:
*in the previous code, I set it up to send fixed data so I can see if the pins are being enabled or not. As it turns out, my code isnt working for some reason. 2 days ago I had it working but idk what could be wrong because I know that "movement1" and "movement2" are being received (wired connection). Any help by looking over my if then statements and all that would be apreciated
Code:'**************************************************************** '* Name : Electric car (4 motors and remote controlled) for Science Olympiad* '* Author : GiroTechs * '* Notice : Copyright (c) 2009 GiroTechs * '* : All Rights Reserved * '* Date : 1/14/2009 * '* Version : 1.0 * '* Notes : this is a single attempt to make a remote controller electric * '* : vehicle with both reverse and forward plus steering * '* : capabilities as well as a stop button. * '* major code piece that baffled me came from: '*http://www.picbasic.co.uk/forum/showthread.php?p=50584#post50584 '* THANK YOU n qwerty! '**************************************************************** ' ' power ^ ground ' RA5 RA0 ' RA4 RA1 ' RA3 RA2 ' RC5 RC0 ' RC4 RC1 ' RC3 RC2 ' Include "modedefs.bas" ' ' ——-[ Equates ]———————————————————————————- ' forwardL var porta.0 ;left side forward forwardR var porta.5 'right side forwad backwardL var porta.1 ;left side backwards backwardR var porta.4 ;right side backwards right var portc.5 ;just turn right left var porta.2 ;just turn left rec var portc.1 ;receiver pin action var byte B1 var byte movement1 VAR WORD movement2 var word direction var word turns var word ;Create a changing pulsewidth signal from 10 usec wide to 655 ;msec wide. pulsewidth var word ;end equates ;Main start TRISA=%00000000 TRISC=%00000010 OPTION_REG.7=0 'Enable Pull-Up's on PORTB ANSEL = 0 'turns off analogue inputs OSCCON =$60 'sets internal osc to 4MHz TRAIN VAR BYTE Start: PORTc.1 = 1 'turn communication pin high TRAIN=$55 SERIN PORTC.1,T2400,[9],movement1,movement2 movement1 = direction movement2 = turns goto checkdirection goto start forward: if turns = 0 then goto forwardgo if turns = 1 THEN goto forwardleft if turns = 2 then goto forwardright endif endif endif forwardgo: high forwardl high forwardr pause 500 low forwardl low forwardr goto start forwardleft: forwardright: backward: if turns = 1 then goto backwardleft if turns = 2 then goto backwardright endif endif high backwardl high backwardr pause 500 low backwardl low backwardr goto start backwardleft: backwardright: turnleft: high left low right pause 500 low right low left goto start if turns = 0 then goto start if turns = 1 THEN goto checkturns if turns = 2 then goto turnright endif endif endif goto turnright turnright: low left high right pause 500 low left low right if turns = 0 then goto start if turns = 1 THEN goto turnleft if turns = 2 then goto checkturns endif endif endif goto turnright nomov: goto start ; ;subroutines ; checkdirection: ;forward and backwards if direction = 0 then goto start if direction = 1 THEN goto forward if direction = 2 then goto backward endif endif endif checkturns: ;forward and backwards if turns = 0 then goto start start_turn: if turns = 1 THEN goto turnleft if turns = 2 then goto turnright endif endif endif goto start ;left and right turns return end ;Subroutines nap18ms: clearwdt ;let us make these nap intervals accurate by resetting the nap 0 ;the watch dog timer on the PIC itself. return nap54ms: gosub nap18ms gosub nap18ms gosub nap18ms return nap108ms: gosub nap54ms gosub nap54ms return nap216ms: gosub nap108ms gosub nap108ms return nap540ms: gosub nap108ms gosub nap108ms gosub nap108ms gosub nap108ms gosub nap108ms return nap1080ms: gosub nap540ms gosub nap540ms return nap1512ms: gosub nap1080ms gosub nap108ms gosub nap108ms return
Thanks guys for helping me out, and bruce...for some reason you taking the care to responding to this thread and knowing that it was me that ordered the other day really shows that ye top you guys are at the top of your game around here. I am wanting to talk to you about something I want to do...it involves selling chips and stuff.
Just get back to me at my email "GiroTechs [at] gmail".
Thanks for your help all!
Regards,
n0rig
P.S. If you can help me out with my code please, please do it quickly as I will need to have a working piece with a remote control (transmitter chip connected to tact switches to designate what the motors connected to the receiving chip will do).
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