Subject:
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Re: Reset & running Main ( )
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 1 Jan 2002 07:36:12 GMT
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Viewed:
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2049 times
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Try taking the white space out from between the "main" and the "()"
-Dan
In lugnet.robotics.handyboard, John R. McDaniel writes:
> Fred,
>
> Man, do you ever sleep? I hope you know how much your support is appreciated.
>
> Here is a copy of my jrm1.c file. Just a reminder, if I type " main() " in
> the IC window on my PC, this file executes flawlessly.
>
> Thanks,
> John
>
>
>
> /* filename: jrm1.c John R. McDaniel */
>
> void main () {
>
> while (1){ /*do this loop endlessly*/
>
>
> printf("Test Motors !!\n"); /*print 'Test Motors !!' on LCD*/
>
> ao(); /*both motor off for 2 seconds*/
> sleep (2.0); /*delay start so can unplug cable*/
>
> /*go forward*/
> printf("Forward\n"); /*print 'Forward' on LCD*/
> fd (0); /*left motor forward*/
> fd (2); /*right motor forward*/
> sleep (3.0); /*do this for 3 seconds*/
> alloff(); /*let motors coast to stop*/
> sleep (1.0);
>
> /*turn right*/
> printf("Right\n"); /*print 'Right' on LCD*/
> fd (0); /*left motor forward*/
> bk (2); /*right motor backwards*/
> sleep (2.0); /*do this for 2 seconds*/
> alloff(); /*let motors coast to stop*/
> sleep (1.0);
>
> /*turn left*/
> printf("Left\n"); /*print 'Left' on LCD*/
> bk (0); /*left motor backwards*/
> fd (2); /*right motor forward*/
> sleep (2.0); /*do this for 2 seconds*/
> alloff(); /*let motors coast to stop*/
> sleep (1.0);
>
> /*go backward*/
> printf("Back\n"); /*print 'Back' on LCD*/
> bk (0); /*left motor backwards*/
> bk (2); /*right motor backwards*/
> sleep (3.0); /*do this for 3 seconds*/
>
>
> alloff(); /*all motors off, rest until next loop*/
> printf("Loop Done\n"); /*print 'Loop Done' on LCD*/
>
> sleep (5.0); /*pause before doing loop again*/
>
> }
> }
>
> /* end */
>
>
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>
>
>
>
>
>
>
>
>
>
>
> In lugnet.robotics.handyboard, Fred G. Martin writes:
> > Well, at this point I'm out of ideas. Would you please copy and paste
> > your jrm1.c file into an email message and send that to the list.
> > (LUGNET strips attachments, so it has to be plain text body of the msg.)
> >
> > thanks,
> > Fred
> >
> > On Monday, December 31, 2001, at 12:12 AM, John McDaniel wrote:
> >
> > > Fred,
> > >
> > > I double-checked, and my " main() " program (filename: jrm1.c) is all
> > > lower
> > > case letters. I confirmed case sensitivity by trying to call the "
> > > main() "
> > > file (filename: jrm1.c) which has been downloaded to the HB by typing "
> > > Main() " on the PC. I get a " Function Main() undefined " message in
> > > the
> > > IC window.
> > >
> > > Typing " main() " on the PC causes the downloaded file (filename:
> > > jrm1.c) to
> > > run. Resetting the HB does not cause jrm1.c to run.
> > >
> > > To further confirm, I modified my program renaming the main function as
> > > " Main " and then downloaded this file (filename: jrm2.c).... after
> > > unloading jrm1.c. Typing " Main() " causes the HB to run jrm2.c.
> > > Typing "
> > > main() " causes a " Function main undefined " message to be displayed.
> > > Resetting the HB does not cause jrm2.c to run.
> > >
> > > Your perserverence is much appreciated. Suggestions?
> > >
> > > Regards,
> > >
> > > John
> > >
> > > ___________________________________
> > >
> > > In lugnet.robotics.handyboard, Fred G. Martin writes:
> > > > I wonder if it's because you've capitalized "Main()". C is case
> > > > sensitive so main != Main.
> > > >
> > > > try it making your main program lower case and see if that works.
> > > >
> > > > Fred
> > > >
> > > > On Sunday, December 30, 2001, at 01:36 PM, john McDaniel wrote:
> > > >
> > > > > Fred,
> > > > >
> > > > > Thanks for the very prompt response. Your responses to queries on
> > > > > this
> > > > > board continue to provide very useful insights.
> > > > >
> > > > > With respect to your response #1, it is helpful to know that "list
> > > > > files"
> > > > > does not actually read the Handy Board and is therefore not a
> > > > > definitive
> > > > > indication of what is resident in Handy Board RAM.
> > > > >
> > > > > Your response #2 would make a useful footnote to that section of the
> > > > > technical reference and your book "Robotic Explorations" which
> > > > > discusses the
> > > > > reset vector.
> > > > >
> > > > >
> > > > > You are correct. If I:
> > > > >
> > > > > a. download a program containing a function named main(),
> > > > > b. turn the handy board off and unplug it from the desktop PC,
> > > > > c. turn the HB on,
> > > > >
> > > > > the HB does NOT run main(). Upon turning the HB back on, it beeps
> > > > > once
> > > > > and
> > > > > the LCD displays "IC v3.1 Handy Board 1.2" and the heartbeat.
> > > > >
> > > > > As noted in my #5 below, if I leave IC running (so it will not
> > > > > "forget"
> > > > > what
> > > > > has been downloaded (your response #1)) while executing steps a thru
> > > > > c, I
> > > > > can plug the serial cable back in, type " main() " and the Handy Board
> > > > > will
> > > > > run the downloaded " main() " program.
> > > > >
> > > > > Thanks again for the help, Fred.
> > > > >
> > > > >
> > > > > Regards,
> > > > >
> > > > > John
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > In lugnet.robotics.handyboard, Fred G. Martin writes:
> > > > > > John, a couple things.
> > > > > >
> > > > > > 1. when you quit and restart IC, it forgets what programs you may
> > > > > > have
> > > > > > loaded into the HB. so that explains your #4 case below.
> > > > > >
> > > > > > 2. IC has its own way of storing vectors for user code like your
> > > > > > main()
> > > > > > program, so you should not expect the hardware reset vector to change
> > > > > > when you load your IC user code. so this explains your case #8.
> > > > > >
> > > > > > what should work is the following:
> > > > > >
> > > > > > a. you download a program containing a function named main().
> > > > > > b. turn the handy board off and unplug it from the desktop machine.
> > > > > > c. turn the HB on, and it should run main().
> > > > > >
> > > > > > does this not work?
> > > > > >
> > > > > > fred
> > > > > >
> > > > > >
> > > > > >
> > > > > > On Saturday, December 29, 2001, at 05:29 PM, John McDaniel wrote:
> > > > > >
> > > > > > > Dear "Group",
> > > > > > >
> > > > > > > ....what are we? Lugnetters? Lugheads? Lugnuts?
> > > > > > >
> > > > > > > Regardless, I need some guidance on getting my Handyboard to run a
> > > > > > > downloaded Main( ) program upon powerup/reset. Here are some facts
> > > > > > > regarding my problem.
> > > > > > >
> > > > > > > 1. The Handyboard downloads the Pcode properly and the LCD displays
> > > > > > > the
> > > > > > > "IC
> > > > > > > v3.1 Handy Board 1.2" message plus a pulsing heartbeat.
> > > > > > >
> > > > > > > 2. I can execute the various IC commands from my PC.... beep( ),
> > > > > > > read
> > > > > > > memory
> > > > > > > locations with peek( ), turn motors on and off, read Knob, etc.
> > > > > > >
> > > > > > > 3. I can download a Main( ) program (filename jrm1.c) to the Handy
> > > > > > > Board and
> > > > > > > them make it run by typing " main ( )" on the PC. I can unplug the
> > > > > > > serial
> > > > > > > cable and the Handy Board will continue to execute the " main( )"
> > > > > > > program
> > > > > > > sequences.
> > > > > > >
> > > > > > > 4. I leave the serial cable plugged into the HB and I do not turn
> > > > > > > off
> > > > > > > the HB
> > > > > > > power switch. If I quit IC (on the PC) and restart, then type "
> > > > > > > list
> > > > > > > files"(after the IC initialization process with the HB), IC does
> > > > > > > not
> > > > > > > list
> > > > > > > my main( ) program (filename jrm1.c). If I try to run my main( )
> > > > > > > program
> > > > > > > (filename jrm1.c), IC displays "Function main undefined".
> > > > > > >
> > > > > > > 5. I unplug the serial cable from the HB, turn off the HB power
> > > > > > > switch,
> > > > > > > and
> > > > > > > leave IC running on the PC. Leave HB power off for 10 minutes.
> > > > > > > Plug
> > > > > > > serial
> > > > > > > cable back into the HB and turn on the HB power switch. Instead of
> > > > > > > executing my " main( )" program (filename jrm1.c), the LCD displays
> > > > > > > the
> > > > > > > "IC
> > > > > > > v3.1 Handy Board 1.2" message with heartbeat. Now, type " main( )"
> > > > > > > on
> > > > > > > the
> > > > > > > PC and my "main( )" program (filename jrm1.c) runs properly.
> > > > > > >
> > > > > > > 6. I have oscilloscoped the 62256 RAM chip's MEM-PWR pin and see no
> > > > > > > interruption of power when the HB power switch is turned off and on.
> > > > > > > Operation of the DS1233 (and subsequent 74HC132 gates) seems correct
> > > > > > > at
> > > > > > > the
> > > > > > > 62256's "/E" pin (20).
> > > > > > >
> > > > > > > 7. The red LED11 PWR LED (led 11) "winks" upon reset and the the
> > > > > > > oscilloscope shows a normal reset waveform at pin 17 on the 68HC11.
> > > > > > > Reset
> > > > > > > also seems to correctly influence the "/E" pin (20) on the 62256.
> > > > > > >
> > > > > > > 8. Before downloading any " main( )" program to the HB, using IC, I
> > > > > > > peek
> > > > > > > (49150) [$BFEE] and (49151) [$BFFF] and see a reset vector of $C500
> > > > > > > which, I
> > > > > > > believe, is the location of IC on the HB.
> > > > > > >
> > > > > > > If I download a " main( )" program to the HB and then peek (49150)
> > > > > > > and
> > > > > > > peek
> > > > > > > (49151) the reset vector has not changed.
> > > > > > >
> > > > > > >
> > > > > > > I'm about at wit's end trying to get my HB to run a " main( )"
> > > > > > > program
> > > > > > > upon
> > > > > > > powerup reset. Can anyone suggest additonal tests I might perform
> > > > > > > or
> > > > > > > provide some insight on what I am overlooking/misunderstanding?
> > > > > > >
> > > > > > > Any assistance is greatly appreciated.
> > > > > > >
> > > > > > > Going crazy in Columbus......John
> > > > >
> > > > >
> > >
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Message is in Reply To:
 | | Re: Reset & running Main ( )
|
| Fred, Man, do you ever sleep? I hope you know how much your support is appreciated. Here is a copy of my jrm1.c file. Just a reminder, if I type " main() " in the IC window on my PC, this file executes flawlessly. Thanks, John /* filename: jrm1.c (...) (23 years ago, 31-Dec-01, to lugnet.robotics.handyboard)
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