> Wonderful,
>
> This is now three times in four days I think.
>
> See the thread "bit adjustment" in the archives.
>
> Bob Ammerman
> RAm Systems
> (contract development of high performance, high function, low-level
> software)
>
> ----- Original Message -----
> From: "sam woolf" <samwKILLspamCOGS.SUSX.AC.UK>
> To: <.....PICLISTKILLspam.....MITVMA.MIT.EDU>
> Sent: Friday, May 04, 2001 8:35 AM
> Subject: [PIC]:a newbie mpasm question
>
>
> Hi everyone. Sorry if this is a silly question.
>
> I have a subroutine called PULSE that oscilates one of the pins on the
> 16F84. It does this by using BCF and BSF to set and clear that pins bit on
> porta.. so basically there are some loops and instructions like
> BCF PORTA,1
>
> My question is: how can I modify my subroutine so that I can set which pin
> to oscillate. I want to be able to do something like:
>
> movlw     1; load w with number of pin on porta to pulse
> call    ping; oscillate pin 1
> movlw    2;now load in new pin number
> call    ping ;    oscillate pin 2.
>
> How can I do this? Are instructions like BCF porta,w valid? I've tried

> and it doesn't seem to work.
> Any suggestions much appreciated.
> sam.
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>
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> http://www.piclist.com hint: The PICList is archived three different
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>
>
>

> -----Original Message-----
> From: sam woolf [SMTP:KILLspamsamwKILLspamCOGS.SUSX.AC.UK]
> Sent: Friday, May 04, 2001 1:36 PM
> To:   RemoveMEPICLISTTakeThisOuTMITVMA.MIT.EDU
> Subject:      [PIC]:a newbie mpasm question
>
> Hi everyone. Sorry if this is a silly question.
>
> I have a subroutine called PULSE that oscilates one of the pins on the
> 16F84. It does this by using BCF and BSF to set and clear that pins bit on
> porta.. so basically there are some loops and instructions like
> BCF PORTA,1
>
> My question is: how can I modify my subroutine so that I can set which pin
> to oscillate. I want to be able to do something like:
>
> movlw     1; load w with number of pin on porta to pulse
> call    ping; oscillate pin 1
> movlw    2;now load in new pin number
> call    ping ;    oscillate pin 2.
>
> How can I do this? Are instructions like BCF porta,w valid? I've tried
> this and it doesn't seem to work.
> Any suggestions much appreciated.
> sam.
>

> of undefined return.
>
> Kashif Ali
>
>
> Justin Fielding wrote:
>
> > I have used:
> >
> > lookup addwf   PCL,F
> >             retlw    b'11101011'
> >             retlw    b'00100001'
> >             retlw    b'11000111'
> >             ertc, etc,etc
> >
> > HOpe this helps...
> >

> thankyou Michael, that works. Now a related question:
> I have a subroutine called ECHO that listens for and times highs and lows on
> one pin of the 16F84..
> The original code uses BTFSS PORTA, PIN
> I want to be able to set which pin to listen to from outside the subroutine.
> I've tried to do a mask thing, but it doesn't work:
> basically I replaced BTFSS PORTA, PIN
> with:
> PIN0    EQU    B'00000001'
> PIN1    EQU    B'00000010'
> ;
> MOVF        PIN0,W
> XORWF      PORTA
> BTFSS        STATUS,Z
>
>   This doesn't seem to be working? Any idea why not? Is there anything else
> I can try?
> sam
>
> ----- Original Message -----
> From: "Michael Rigby-Jones" <mrjonesSTOPspamspam_OUTNORTELNETWORKS.COM>
> To: <spamBeGonePICLISTSTOPspamEraseMEMITVMA.MIT.EDU>
> Sent: Friday, May 04, 2001 2:00 PM
> Subject: Re: [PIC]:a newbie mpasm question
>

> I've tried to do a mask thing, but it doesn't work:
> basically I replaced BTFSS PORTA, PIN
> with:
> PIN0    EQU    B'00000001'
> PIN1    EQU    B'00000010'
> ;
> MOVF        PIN0,W
> XORWF      PORTA
> BTFSS        STATUS,Z
>
>   This doesn't seem to be working? Any idea why not? Is there anything

> >     lookup
> >             jmp    pc+w
>
> There is no such instruction.  How did you ever get this past the assembler?
> You can do ADDWF PCL.
>
> >             retw   00h,01h,02h,03h,04h
>
> Again, how did you get this past the assembler?  The correct instruction is
> RETLW.
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, TakeThisOuTolinKILLspamspamembedinc.com, http://www.embedinc.com
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

> Hi all
>
> Is there any software engineer who is using tech-tools pic assembler "CVASM16"
>
> if any body please contact me.
>
> Kashif ali
>
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> ways.  See http://www.piclist.com/#archives for details.
>
>
>
>

>
> Dear Jim Paul :
>
> I think it is the meter of experience. As because I have not much experience of
> pic micro controller but still my opinion for pic is hard to program. I am going
> to differ both with these little examples :
>
>     Pic micro controller has page boundaries limitation
>     8051 has no page boundary limit.
>
>     Pic has only 8 byte stack level
>     8051 has upto 100 stack level (depend on data memory)
>
>     Pic micro controller family has higher prices then 8051 compatible
>     like Pic16f84 > AT2051 in price but in features Pic16f84 < AT2051
>
>     I have seen only one big advantage in PIC is low power. That's why I am
> working
>     on it.
>
>     It great for me if give your opinion.
>
> >
> > --
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> > ways.  See http://www.piclist.com/#archives for details.
> >
> > --
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>
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>
> >     Pic micro controller has page boundaries limitation
> >     8051 has no page boundary limit.
> >
> >     Pic has only 8 byte stack level
> >     8051 has upto 100 stack level (depend on data memory)
> >
> >     Pic micro controller family has higher prices then 8051 compatible
> >     like Pic16f84 > AT2051 in price but in features Pic16f84 < AT2051
>
> You should compare processing power for the price.  The PIC's harvard
> architecture usually provides more crunching power, all else being equal.
> The 8051's Von Neuman architecture provides more flexibility.  A big plus
> for PICs is that the development tools are free and supported by the same
> company that makes the chips.  I did a project with a 80C152 a few years
> ago.  The chip was from Intel, the support from the local distributor, the
> compiler from Franklin (Keil), and the ICE from yet another party.  The
> Franklin and ICE people were always pointing fingers at each other instead
> of getting my problem fixed.  What a pain!
>
> >     I have seen only one big advantage in PIC is low power. That's why I
> am
> > working
> >     on it.
>
> If power is the overriding concearn, check out the new microcontrollers from
> TI.  I don't remember the exact name, something like TMS320?  I haven't
> tried these yet, but the power consuption specs are very impressive.
>
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, .....olinSTOPspam@spam@embedinc.com, http://www.embedinc.com
>
> --
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> > The thing is: PIC IS COMPLICATED LIKE HELL!!! But is a
> > very powerful thing to learn. Hard to learn, hard to
> > program, nice to use because its cheap.
>
> I think of the PICs as among the simplest machines I've programmed (and I've
> programmed quite a few).  If you want to see complicated, take a look a the
> Pentium's instruction set.  In my opinion, that's the most complicated
> machine I've ever programmed in assembler.
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, EraseMEolinRemoveMESTOPspamembedinc.com, http://www.embedinc.com
>
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>
> Thank you for your reply.
>
> I am working first time with pic micro controller in past I have an experience of
> MCS51 compatible micro controllers. So I decide to adopt a instruction set for PIC
> which compatible of mcs51 and found Techtools.
>
> Now I'm facing problems of
>                                             i)    Paging
>                                             ii)    Retw
>                                             iii)    etc.. etc..
> which was not exist in mcs51 base program
>
> Please also tell where your from
>
>
> Kashif Ali
> Pakistan - Lahore
>
> --
> http://www.piclist.com hint: To leave the PICList
> spam_OUTpiclist-unsubscribe-requestspam_OUTspam_OUTmitvma.mit.edu

> >     Pic micro controller has page boundaries limitation
> >     8051 has no page boundary limit.
> >
> >     Pic has only 8 byte stack level
> >     8051 has upto 100 stack level (depend on data memory)
> >
> >     Pic micro controller family has higher prices then 8051 compatible
> >     like Pic16f84 > AT2051 in price but in features Pic16f84 < AT2051
>
> You should compare processing power for the price.  The PIC's harvard
> architecture usually provides more crunching power, all else being equal.
> The 8051's Von Neuman architecture provides more flexibility.  A big plus
> for PICs is that the development tools are free and supported by the same
> company that makes the chips.  I did a project with a 80C152 a few years
> ago.  The chip was from Intel, the support from the local distributor, the
> compiler from Franklin (Keil), and the ICE from yet another party.  The
> Franklin and ICE people were always pointing fingers at each other instead
> of getting my problem fixed.  What a pain!
>
> >     I have seen only one big advantage in PIC is low power. That's why I
> am
> > working
> >     on it.
>
> If power is the overriding concearn, check out the new microcontrollers from
> TI.  I don't remember the exact name, something like TMS320?  I haven't
> tried these yet, but the power consuption specs are very impressive.
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, olinspamBeGone.....embedinc.com, http://www.embedinc.com
>
> --
> http://www.piclist.com#nomail Going offline? Don't AutoReply us!
> email KILLspamlistserv.....mitvma.mit.edu with SET PICList DIGEST in the body

>  Kashef,
>
>  I live in Houston, Texas.  Texas is in the middle southern United
>  States, and Houston is in the southeast portion of the state near
>  the Gulf Of Mexico.
>
>                                                 Regards,
>
>                                                 Jim Paul
>
> On Fri, 11 May 2001, Kashif Ali wrote:
>
> >
> > Thank you for your reply.
> >
> > I am working first time with pic micro controller in past I have an experience of
> > MCS51 compatible micro controllers. So I decide to adopt a instruction set for PIC
> > which compatible of mcs51 and found Techtools.
> >
> > Now I'm facing problems of
> >                                             i)    Paging
> >                                             ii)    Retw
> >                                             iii)    etc.. etc..
> > which was not exist in mcs51 base program
> >
> > Please also tell where your from
> >
> >
> > Kashif Ali
> > Pakistan - Lahore
> >
> > --
> > http://www.piclist.com hint: To leave the PICList
> > RemoveMEpiclist-unsubscribe-requestRemoveMEEraseMEmitvma.mit.edu
>
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>
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>
> Thanks for your reply.
>
> How many projects you did with the help of tech-tools assembler.
>
> and which uC you used for your projects.
>
> Kashif ali
>
>
> James Paul wrote:
>
> >  Kashef,
> >
> >  I live in Houston, Texas.  Texas is in the middle southern United
> >  States, and Houston is in the southeast portion of the state near
> >  the Gulf Of Mexico.
> >
> >                                                 Regards,
> >
> >                                                 Jim Paul
> >
> > On Fri, 11 May 2001, Kashif Ali wrote:
> >
> > >
> > > Thank you for your reply.
> > >
> > > I am working first time with pic micro controller in past I have an experience of
> > > MCS51 compatible micro controllers. So I decide to adopt a instruction set for PIC
> > > which compatible of mcs51 and found Techtools.
> > >
> > > Now I'm facing problems of
> > >                                             i)    Paging
> > >                                             ii)    Retw
> > >                                             iii)    etc.. etc..
> > > which was not exist in mcs51 base program
> > >
> > > Please also tell where your from
> > >
> > >
> > > Kashif Ali
> > > Pakistan - Lahore
> > >
> > > --
> > > http://www.piclist.com hint: To leave the PICList
> > > KILLspampiclist-unsubscribe-requestspamBeGonemitvma.mit.edu> > >
> > @spam@jimSTOPspam@spam@jpes.com
> >
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>
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>  Kashif,
>
>  I have not used tech-tools at all.   I use either PIC Assembly
>  language and MPLAB supplied by Microchip, or CCS 'C' that I
>  bought from CCS.   As far as parts I've used, I have either used or
>  worked with the following parts.
>
>  16C84, 16F84, 12C672, 12C509, 16C71, 16C54, 16C55, 16C56, 16C57,
>  16C76, 17C42
>
>  So as you can see, I have at one time or another worked with a good
>  portion of the line of PIC's, except the new 18C series.
>  I work with a guy who has worked with them, but I haven't yet.
>
>  I truly believe that once you start working with the PIC controllers,
>  and get to know them, you too will concur that they are among the
>  easiest to program, and are fast.  A lot of bang for the buck.
>  And apparently many other people think so too, cause when I first
>  started working with PIC's in early 1990's, they had just a few
>  devices to choose from (16C55, 56, 57, & 58 and the 16C84).
>  Now look at the lineup.  So many parts, it's hard to decide just
>  which one to use.  So, if people didn't think they were great and
>  was buying them, do you think Microchip would have expanded the
>  line they produce?   I would say probably not.
>
>                                                Regards,
>
>                                                  Jim
>
> On Fri, 11 May 2001, Kashif Ali wrote:
>
> >
> > Thanks for your reply.
> >
> > How many projects you did with the help of tech-tools assembler.
> >
> > and which uC you used for your projects.
> >
> > Kashif ali
> >
> >
> > James Paul wrote:
> >
> > >  Kashef,
> > >
> > >  I live in Houston, Texas.  Texas is in the middle southern United
> > >  States, and Houston is in the southeast portion of the state near
> > >  the Gulf Of Mexico.
> > >
> > >                                                 Regards,
> > >
> > >                                                 Jim Paul
> > >
> > > On Fri, 11 May 2001, Kashif Ali wrote:
> > >
> > > >
> > > > Thank you for your reply.
> > > >
> > > > I am working first time with pic micro controller in past I have an experience of
> > > > MCS51 compatible micro controllers. So I decide to adopt a instruction set for PIC
> > > > which compatible of mcs51 and found Techtools.
> > > >
> > > > Now I'm facing problems of
> > > >                                             i)    Paging
> > > >                                             ii)    Retw
> > > >                                             iii)    etc.. etc..
> > > > which was not exist in mcs51 base program
> > > >
> > > > Please also tell where your from
> > > >
> > > >
> > > > Kashif Ali
> > > > Pakistan - Lahore
> > > >
> > > > --
> > > > http://www.piclist.com hint: To leave the PICList
> > > > EraseMEpiclist-unsubscribe-requestRemoveMEmitvma.mit.edu> > > >
> > > spamjim.....spamjpes.com
> > >
> > > --
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> > > piclist-unsubscribe-requestspam_OUT@spam@mitvma.mit.edu> > >
> > --
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>
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> > What is your source of Pic uC ?
> >
> > I need it, can you give the source except digikey
>
> Lots of folks carry PICs.  I usually get them from DigiKey when I get them
> myself.  Most of the time someone else does the purchasing and gives me a
> few for the development.  Ask any local electronics distributor.  Most
> likely they will either carry PICs or know who does in your area.  Around
> here, Arrow also stocks the complete line of PICs.
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, @spam@olinspamKILLspamembedinc.com, http://www.embedinc.com
>
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> > What is your source of Pic uC ?
> >
> > I need it, can you give the source except digikey
>
> Lots of folks carry PICs.  I usually get them from DigiKey when I get them
> myself.  Most of the time someone else does the purchasing and gives me a
> few for the development.  Ask any local electronics distributor.  Most
> likely they will either carry PICs or know who does in your area.  Around
> here, Arrow also stocks the complete line of PICs.
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, RemoveMEolinKILLspamRemoveMEembedinc.com, http://www.embedinc.com
>
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> > i don't know how to use indirect address in pic16f84.
> > any one can send me an example of indirect addressing routine.
>
> Open the data sheet and read about the FSR and INDF registers.
>
> ********************************************************************
> Olin Lathrop, embedded systems consultant in Littleton Massachusetts
> (978) 742-9014, olinSTOPspamembedinc.com, http://www.embedinc.com
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>
> thank you olin.
>
> please tell me one more thing about external interrupt in pic16c64.
>
> Kashif ali
> Olin Lathrop wrote:
>
> > > i don't know how to use indirect address in pic16f84.
> > > any one can send me an example of indirect addressing routine.
> >
> > Open the data sheet and read about the FSR and INDF registers.
> >