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Discussion Groups | Piclist | making USART useful

A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.

making USART useful - bg3009 - Nov 30 8:53:00 2003

I just bought a 877 chip for interfacing with my 818 viz IIC. As I
found out, this chip has USART on board and can be interfaced with a
PC terminal. What kind of things can be done with such a facility?

BG


______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


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Re: making USART useful - Bob Hedges - Nov 30 9:23:00 2003

I installed a bootloader program on the 877 and program with the serial port on my computer.
I don't have to remove the chip, put it in the programmer, program it, remove it from programmer, put it on circuit board.
Rinse and repeat.
I tried to do ICSP but couldn't get it to work.
 
----- Original Message -----
From: bg3009
To: p...@yahoogroups.com
Sent: Sunday, November 30, 2003 8:53 AM
Subject: [piclist] making USART useful

I just bought a 877 chip for interfacing with my 818 viz IIC. As I
found out, this chip has USART on board and can be interfaced with a
PC terminal. What kind of things can be done with such a facility?

BG



to unsubscribe, go to http://www.yahoogroups.com and follow the instructions

Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.





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Re: making USART useful - rtstofer - Nov 30 10:21:00 2003

You can get the '877 resident PicLoader at
http://www.junun.org/MarkIII/PICLoader.jsp - just download the hex
file unless you want to get into the assembly language details.
Program this into the chip. This version uses 38.4 kB and is
modified from the version distributed by the author - Ric Farmer.

Now get the BotLoader code from the files section at the Yahoo
MiniSumo Mark III group. This is a Windows application for
downloading .hex files to the '877. It also has a terminal window
for interactive communications with the chip.

It is possible, but not supported, to communicate with PicLoader
using HyperTerminal. Just make sure the end-of-line delay is set at
100 mS, no flow control, 38.4k,8,n,1 and there is a chance it will
work. --- In , "Bob Hedges" <bhmtr@m...> wrote:
> I installed a bootloader program on the 877 and program with the
serial port on my computer.
> I don't have to remove the chip, put it in the programmer, program
it, remove it from programmer, put it on circuit board.
> Rinse and repeat.
> I tried to do ICSP but couldn't get it to work.
>
> ----- Original Message -----
> From: bg3009
> To:
> Sent: Sunday, November 30, 2003 8:53 AM
> Subject: [piclist] making USART useful > I just bought a 877 chip for interfacing with my 818 viz IIC. As
I
> found out, this chip has USART on board and can be interfaced
with a
> PC terminal. What kind of things can be done with such a
facility?
>
> BG > Yahoo! Groups Sponsor
> ADVERTISEMENT >
>
> to unsubscribe, go to http://www.yahoogroups.com and follow the
instructions
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.


______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


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Re: making USART useful - bg3009 - Dec 1 9:24:00 2003

rt,

Have you tried this? I am hoping to make it read data from
another chip using IIC and using USART to read that data the 877 gets
from the slave... have u built this thing?

BG
--- In , "rtstofer" <rstofer@p...> wrote:
> You can get the '877 resident PicLoader at
> http://www.junun.org/MarkIII/PICLoader.jsp - just download the hex
> file unless you want to get into the assembly language details.
> Program this into the chip. This version uses 38.4 kB and is
> modified from the version distributed by the author - Ric Farmer.
>
> Now get the BotLoader code from the files section at the Yahoo
> MiniSumo Mark III group. This is a Windows application for
> downloading .hex files to the '877. It also has a terminal window
> for interactive communications with the chip.
>
> It is possible, but not supported, to communicate with PicLoader
> using HyperTerminal. Just make sure the end-of-line delay is set
at
> 100 mS, no flow control, 38.4k,8,n,1 and there is a chance it will
> work. > --- In , "Bob Hedges" <bhmtr@m...> wrote:
> > I installed a bootloader program on the 877 and program with the
> serial port on my computer.
> > I don't have to remove the chip, put it in the programmer,
program
> it, remove it from programmer, put it on circuit board.
> > Rinse and repeat.
> > I tried to do ICSP but couldn't get it to work.
> >
> > ----- Original Message -----
> > From: bg3009
> > To:
> > Sent: Sunday, November 30, 2003 8:53 AM
> > Subject: [piclist] making USART useful
> >
> >
> > I just bought a 877 chip for interfacing with my 818 viz IIC.
As
> I
> > found out, this chip has USART on board and can be interfaced
> with a
> > PC terminal. What kind of things can be done with such a
> facility?
> >
> > BG
> >
> >
> > Yahoo! Groups Sponsor
> > ADVERTISEMENT
> >
> >
> >
> >
> > to unsubscribe, go to http://www.yahoogroups.com and follow the
> instructions
> >
> > Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> Service.


______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


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Re: making USART useful - rtstofer - Dec 1 16:17:00 2003


I use PicLoader/BotLoader almost daily on my Mark III robots and a
couple of development boards. The terminal mode is useful for
debugging messages from the PIC. Mostly I just use it to download
code for testing. No point in using a PIC programmer during the
early stages of development.

I haven't needed I2C enough to work through the issues. I did have
it working on an OOPIC and an 80C552 with an I2C LCD display. --- In , "bg3009" <bg3009@y...> wrote:
> rt,
>
> Have you tried this? I am hoping to make it read data from
> another chip using IIC and using USART to read that data the 877
gets
> from the slave... have u built this thing?
>
> BG
> --- In , "rtstofer" <rstofer@p...> wrote:
> > You can get the '877 resident PicLoader at
> > http://www.junun.org/MarkIII/PICLoader.jsp - just download the
hex
> > file unless you want to get into the assembly language details.
> > Program this into the chip. This version uses 38.4 kB and is
> > modified from the version distributed by the author - Ric Farmer.
> >
> > Now get the BotLoader code from the files section at the Yahoo
> > MiniSumo Mark III group. This is a Windows application for
> > downloading .hex files to the '877. It also has a terminal
window
> > for interactive communications with the chip.
> >
> > It is possible, but not supported, to communicate with PicLoader
> > using HyperTerminal. Just make sure the end-of-line delay is
set
> at
> > 100 mS, no flow control, 38.4k,8,n,1 and there is a chance it
will
> > work.
> >
> >
> > --- In , "Bob Hedges" <bhmtr@m...> wrote:
> > > I installed a bootloader program on the 877 and program with
the
> > serial port on my computer.
> > > I don't have to remove the chip, put it in the programmer,
> program
> > it, remove it from programmer, put it on circuit board.
> > > Rinse and repeat.
> > > I tried to do ICSP but couldn't get it to work.
> > >
> > > ----- Original Message -----
> > > From: bg3009
> > > To:
> > > Sent: Sunday, November 30, 2003 8:53 AM
> > > Subject: [piclist] making USART useful
> > >
> > >
> > > I just bought a 877 chip for interfacing with my 818 viz
IIC.
> As
> > I
> > > found out, this chip has USART on board and can be
interfaced
> > with a
> > > PC terminal. What kind of things can be done with such a
> > facility?
> > >
> > > BG
> > >
> > >
> > > Yahoo! Groups Sponsor
> > > ADVERTISEMENT
> > >
> > >
> > >
> > >
> > > to unsubscribe, go to http://www.yahoogroups.com and follow
the
> > instructions
> > >
> > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> > Service.




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Re: making USART useful - bg3009 - Dec 1 19:55:00 2003

Wow, this is beginning to look really complicated...I did look
through the website and I feel that its what I need as far as USART
is concerned. But I think I already have my hands full trying to
establish IIC link between two pics as the issues are almost fraying
my nerves.. The biggest prob is to monitor the output and what could
be the best way?

BG --- In , "rtstofer" <rstofer@p...> wrote:
>
> I use PicLoader/BotLoader almost daily on my Mark III robots and a
> couple of development boards. The terminal mode is useful for
> debugging messages from the PIC. Mostly I just use it to download
> code for testing. No point in using a PIC programmer during the
> early stages of development.
>
> I haven't needed I2C enough to work through the issues. I did have
> it working on an OOPIC and an 80C552 with an I2C LCD display. > --- In , "bg3009" <bg3009@y...> wrote:
> > rt,
> >
> > Have you tried this? I am hoping to make it read data from
> > another chip using IIC and using USART to read that data the 877
> gets
> > from the slave... have u built this thing?
> >
> > BG
> > --- In , "rtstofer" <rstofer@p...> wrote:
> > > You can get the '877 resident PicLoader at
> > > http://www.junun.org/MarkIII/PICLoader.jsp - just download the
> hex
> > > file unless you want to get into the assembly language
details.
> > > Program this into the chip. This version uses 38.4 kB and is
> > > modified from the version distributed by the author - Ric
Farmer.
> > >
> > > Now get the BotLoader code from the files section at the Yahoo
> > > MiniSumo Mark III group. This is a Windows application for
> > > downloading .hex files to the '877. It also has a terminal
> window
> > > for interactive communications with the chip.
> > >
> > > It is possible, but not supported, to communicate with
PicLoader
> > > using HyperTerminal. Just make sure the end-of-line delay is
> set
> > at
> > > 100 mS, no flow control, 38.4k,8,n,1 and there is a chance it
> will
> > > work.
> > >
> > >
> > > --- In , "Bob Hedges" <bhmtr@m...> wrote:
> > > > I installed a bootloader program on the 877 and program with
> the
> > > serial port on my computer.
> > > > I don't have to remove the chip, put it in the programmer,
> > program
> > > it, remove it from programmer, put it on circuit board.
> > > > Rinse and repeat.
> > > > I tried to do ICSP but couldn't get it to work.
> > > >
> > > > ----- Original Message -----
> > > > From: bg3009
> > > > To:
> > > > Sent: Sunday, November 30, 2003 8:53 AM
> > > > Subject: [piclist] making USART useful
> > > >
> > > >
> > > > I just bought a 877 chip for interfacing with my 818 viz
> IIC.
> > As
> > > I
> > > > found out, this chip has USART on board and can be
> interfaced
> > > with a
> > > > PC terminal. What kind of things can be done with such a
> > > facility?
> > > >
> > > > BG
> > > >
> > > >
> > > > Yahoo! Groups Sponsor
> > > > ADVERTISEMENT
> > > >
> > > >
> > > >
> > > >
> > > > to unsubscribe, go to http://www.yahoogroups.com and follow
> the
> > > instructions
> > > >
> > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of
> > > Service.


______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )

Re: making USART useful - Phil - Dec 1 21:13:00 2003

Compared to IIC, getting the USART working is a walk in the park.
Its quite useful for simply printing out various values from your
program(s). For example, I'm using it to print the hex value of
various registers read by my mssp ISR using a terminal program on my
pc. (yes, I know it disrupts the timing of the IIC stuff but if it
aint working you've got to see what's going on.) clearly there are
more significant uses.

I viewed getting the usart working as part of getting my tools in
line before tackling the real work. Plus, there is a certain
gratification actually seeing "hello world" come out of the pic. You
know you are on the right track. small victories...

--- In , "bg3009" <bg3009@y...> wrote:
> Wow, this is beginning to look really complicated...I did look
> through the website and I feel that its what I need as far as USART
> is concerned. But I think I already have my hands full trying to
> establish IIC link between two pics as the issues are almost
fraying
> my nerves.. The biggest prob is to monitor the output and what
could
> be the best way?
>
> BG > --- In , "rtstofer" <rstofer@p...> wrote:
> >
> > I use PicLoader/BotLoader almost daily on my Mark III robots and
a
> > couple of development boards. The terminal mode is useful for
> > debugging messages from the PIC. Mostly I just use it to
download
> > code for testing. No point in using a PIC programmer during the
> > early stages of development.
> >
> > I haven't needed I2C enough to work through the issues. I did
have
> > it working on an OOPIC and an 80C552 with an I2C LCD display.
> >
> >
> > --- In , "bg3009" <bg3009@y...> wrote:
> > > rt,
> > >
> > > Have you tried this? I am hoping to make it read data from
> > > another chip using IIC and using USART to read that data the
877
> > gets
> > > from the slave... have u built this thing?
> > >
> > > BG
> > > --- In , "rtstofer" <rstofer@p...> wrote:
> > > > You can get the '877 resident PicLoader at
> > > > http://www.junun.org/MarkIII/PICLoader.jsp - just download
the
> > hex
> > > > file unless you want to get into the assembly language
> details.
> > > > Program this into the chip. This version uses 38.4 kB and is
> > > > modified from the version distributed by the author - Ric
> Farmer.
> > > >
> > > > Now get the BotLoader code from the files section at the
Yahoo
> > > > MiniSumo Mark III group. This is a Windows application for
> > > > downloading .hex files to the '877. It also has a terminal
> > window
> > > > for interactive communications with the chip.
> > > >
> > > > It is possible, but not supported, to communicate with
> PicLoader
> > > > using HyperTerminal. Just make sure the end-of-line delay is
> > set
> > > at
> > > > 100 mS, no flow control, 38.4k,8,n,1 and there is a chance it
> > will
> > > > work.
> > > >
> > > >
> > > > --- In , "Bob Hedges" <bhmtr@m...>
wrote:
> > > > > I installed a bootloader program on the 877 and program
with
> > the
> > > > serial port on my computer.
> > > > > I don't have to remove the chip, put it in the programmer,
> > > program
> > > > it, remove it from programmer, put it on circuit board.
> > > > > Rinse and repeat.
> > > > > I tried to do ICSP but couldn't get it to work.
> > > > >
> > > > > ----- Original Message -----
> > > > > From: bg3009
> > > > > To:
> > > > > Sent: Sunday, November 30, 2003 8:53 AM
> > > > > Subject: [piclist] making USART useful
> > > > >
> > > > >
> > > > > I just bought a 877 chip for interfacing with my 818 viz
> > IIC.
> > > As
> > > > I
> > > > > found out, this chip has USART on board and can be
> > interfaced
> > > > with a
> > > > > PC terminal. What kind of things can be done with such a
> > > > facility?
> > > > >
> > > > > BG
> > > > >
> > > > >
> > > > > Yahoo! Groups Sponsor
> > > > > ADVERTISEMENT
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > to unsubscribe, go to http://www.yahoogroups.com and
follow
> > the
> > > > instructions
> > > > >
> > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms
of
> > > > Service.




(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )

Re: Re: making USART useful - Eirik Karlsen - Dec 2 13:21:00 2003

IIC and USART are sort of worlds apart.......
Haven't used IIC on the PIC yet, but are using the USART right now and its very simple.
Only time I've done IIC was on a Intel 80552 for a serial EEPROM link.....
And if I remember correctly the IIC hardware had about 30 interrupt vectors associated with
it, for all sorts of errorhandeling and stuff
Good luck to you!  (hehe).
 

bg3009 wrote:

 Wow, this is beginning to look really complicated...I did look
through the website and I feel that its what I need as far as USART
is concerned. But I think I already have my hands full trying to
establish IIC link between two pics as the issues are almost fraying
my nerves.. The biggest prob is to monitor the output and what could
be the best way?

BG

--
*******************************************
VISIT MY HOME PAGE:
<http://home.online.no/~eikarlse/index.htm>
LAST UPDATED: 23/08/2003
*******************************************
Best Regards
Eirik Karlsen
 



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Re: making USART useful - bg3009 - Dec 3 6:01:00 2003

well so much for small victories I haven't even been able to make
hello world come out on a LCD! But the real purpose I am thinking of
the USART is for debugging the MSSP which reads from a slave pic some
bits. So There has to be some way of seeing this bits come out of the
877. I would be glad to see some value on the PC screen at least.
Like send a read command so that the 877 reads from the slave via IIC
and then sends the data via USART to the PC so the values are
reflected on the screen... Would that be still a walk in the part?
Also, I am trying to do something different here.. (except maybe
AN734) which is to make IIC communications more hassle free using the
least amount of code

BG

--- In , "Phil" <phil1960us@y...> wrote:
> Compared to IIC, getting the USART working is a walk in the park.
> Its quite useful for simply printing out various values from your
> program(s). For example, I'm using it to print the hex value of
> various registers read by my mssp ISR using a terminal program on
my
> pc. (yes, I know it disrupts the timing of the IIC stuff but if it
> aint working you've got to see what's going on.) clearly there are
> more significant uses.
>
> I viewed getting the usart working as part of getting my tools in
> line before tackling the real work. Plus, there is a certain
> gratification actually seeing "hello world" come out of the pic.
You
> know you are on the right track. small victories...
>
> --- In , "bg3009" <bg3009@y...> wrote:
> > Wow, this is beginning to look really complicated...I did look
> > through the website and I feel that its what I need as far as
USART
> > is concerned. But I think I already have my hands full trying to
> > establish IIC link between two pics as the issues are almost
> fraying
> > my nerves.. The biggest prob is to monitor the output and what
> could
> > be the best way?
> >
> > BG
> >
> >
> > --- In , "rtstofer" <rstofer@p...> wrote:
> > >
> > > I use PicLoader/BotLoader almost daily on my Mark III robots
and
> a
> > > couple of development boards. The terminal mode is useful for
> > > debugging messages from the PIC. Mostly I just use it to
> download
> > > code for testing. No point in using a PIC programmer during
the
> > > early stages of development.
> > >
> > > I haven't needed I2C enough to work through the issues. I did
> have
> > > it working on an OOPIC and an 80C552 with an I2C LCD display.
> > >
> > >
> > > --- In , "bg3009" <bg3009@y...> wrote:
> > > > rt,
> > > >
> > > > Have you tried this? I am hoping to make it read data
from
> > > > another chip using IIC and using USART to read that data the
> 877
> > > gets
> > > > from the slave... have u built this thing?
> > > >
> > > > BG
> > > > --- In , "rtstofer" <rstofer@p...>
wrote:
> > > > > You can get the '877 resident PicLoader at
> > > > > http://www.junun.org/MarkIII/PICLoader.jsp - just download
> the
> > > hex
> > > > > file unless you want to get into the assembly language
> > details.
> > > > > Program this into the chip. This version uses 38.4 kB and
is
> > > > > modified from the version distributed by the author - Ric
> > Farmer.
> > > > >
> > > > > Now get the BotLoader code from the files section at the
> Yahoo
> > > > > MiniSumo Mark III group. This is a Windows application for
> > > > > downloading .hex files to the '877. It also has a terminal
> > > window
> > > > > for interactive communications with the chip.
> > > > >
> > > > > It is possible, but not supported, to communicate with
> > PicLoader
> > > > > using HyperTerminal. Just make sure the end-of-line delay
is
> > > set
> > > > at
> > > > > 100 mS, no flow control, 38.4k,8,n,1 and there is a chance
it
> > > will
> > > > > work.
> > > > >
> > > > >
> > > > > --- In , "Bob Hedges" <bhmtr@m...>
> wrote:
> > > > > > I installed a bootloader program on the 877 and program
> with
> > > the
> > > > > serial port on my computer.
> > > > > > I don't have to remove the chip, put it in the
programmer,
> > > > program
> > > > > it, remove it from programmer, put it on circuit board.
> > > > > > Rinse and repeat.
> > > > > > I tried to do ICSP but couldn't get it to work.
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: bg3009
> > > > > > To:
> > > > > > Sent: Sunday, November 30, 2003 8:53 AM
> > > > > > Subject: [piclist] making USART useful
> > > > > >
> > > > > >
> > > > > > I just bought a 877 chip for interfacing with my 818
viz
> > > IIC.
> > > > As
> > > > > I
> > > > > > found out, this chip has USART on board and can be
> > > interfaced
> > > > > with a
> > > > > > PC terminal. What kind of things can be done with such
a
> > > > > facility?
> > > > > >
> > > > > > BG
> > > > > >
> > > > > >
> > > > > > Yahoo! Groups Sponsor
> > > > > > ADVERTISEMENT
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > to unsubscribe, go to http://www.yahoogroups.com and
> follow
> > > the
> > > > > instructions
> > > > > >
> > > > > > Your use of Yahoo! Groups is subject to the Yahoo!
Terms
> of
> > > > > Service.




(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )

making USART useful - techy fellow - Dec 3 10:21:00 2003

A constructional project called the 'ICEBreaker' is in the EPE March 2000 issue. It is about using a 877 as an emulator and debugger. The project was written by Mark Stuart. The board can be connected to a PC and can also output signals/ text to a LCD. Not sure whether you are looking for something similar to this one.

bg3009 <b...@yahoo.com> wrote:
well so much for small victories I haven't even been able to make
hello world come out on a LCD! But the real purpose I am thinking of
the USART is for debugging the MSSP which reads from a slave pic some
bits. So There has to be some way of seeing this bits come out of the
877. I would be glad to see some value on the PC screen at least.
Like send a read command so that the 877 reads from the slave via IIC
and then sends the data via USART to the PC so the values are
reflected on the screen... Would that be still a walk in the part?
Also, I am trying to do something different here.. (except maybe
AN734) which is to make IIC communications more hassle free using the
least amount of code

BG

--- In p...@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> Compared to IIC, getting the USART working is a walk in the park. 
> Its quite useful for simply printing out various values from your
> program(s).  For example, I'm using it to print the hex value of
> various registers read by my mssp ISR using a terminal program on
my
> pc. (yes, I know it disrupts the timing of the IIC stuff but if it
> aint working you've got to see what's going on.)  clearly there are
> more significant uses.
>
> I viewed getting the usart working as part of getting my tools in
> line before tackling the real work.  Plus, there is a certain
> gratification actually seeing "hello world" come out of the pic. 
You
> know you are on the right track. small victories...
>
> --- In p...@yahoogroups.com, "bg3009" <bg3009@y...> wrote:
> > Wow, this is beginning to look really complicated...I did look
> > through the website and I feel that its what I need as far as
USART
> > is concerned. But I think I already have my hands full trying to
> > establish IIC link between two pics as the issues are almost
> fraying
> > my nerves.. The biggest prob is to monitor the output and what
> could
> > be the best way?
> >
> > BG
> >
> >
> > --- In p...@yahoogroups.com, "rtstofer" <rstofer@p...> wrote:
> > >
> > > I use PicLoader/BotLoader almost daily on my Mark III robots
and
> a
> > > couple of development boards.  The terminal mode is useful for
> > > debugging messages from the PIC.  Mostly I just use it to
> download
> > > code for testing.  No point in using a PIC programmer during
the
> > > early stages of development.
> > >
> > > I haven't needed I2C enough to work through the issues.  I did
> have
> > > it working on an OOPIC and an 80C552 with an I2C LCD display.
> > >
> > >
> > > --- In p...@yahoogroups.com, "bg3009" <bg3009@y...> wrote:
> > > > rt,
> > > >
> > > >     Have you tried this? I am hoping to make it read data 
from
> > > > another chip using IIC and using USART to read that data the
> 877
> > > gets
> > > > from the slave... have u built this thing?
> > > >
> > > > BG
> > > > --- In p...@yahoogroups.com, "rtstofer" <rstofer@p...>
wrote:
> > > > > You can get the '877 resident PicLoader at
> > > > > http://www.junun.org/MarkIII/PICLoader.jsp - just download
> the
> > > hex
> > > > > file unless you want to get into the assembly language
> > details. 
> > > > > Program this into the chip.  This version uses 38.4 kB and
is
> > > > > modified from the version distributed by the author - Ric
> > Farmer.
> > > > >
> > > > > Now get the BotLoader code from the files section at the
> Yahoo
> > > > > MiniSumo Mark III group.  This is a Windows application for
> > > > > downloading .hex files to the '877.  It also has a terminal
> > > window
> > > > > for interactive communications with the chip.
> > > > >
> > > > > It is possible, but not supported, to communicate with
> > PicLoader
> > > > > using HyperTerminal.  Just make sure the end-of-line delay
is
> > > set
> > > > at
> > > > > 100 mS, no flow control, 38.4k,8,n,1 and there is a chance
it
> > > will
> > > > > work.
> > > > >
> > > > >
> > > > > --- In p...@yahoogroups.com, "Bob Hedges" <bhmtr@m...>
> wrote:
> > > > > > I installed a bootloader program on the 877 and program
> with
> > > the
> > > > > serial port on my computer.
> > > > > > I don't have to remove the chip, put it in the
programmer,
> > > > program
> > > > > it, remove it from programmer, put it on circuit board.
> > > > > > Rinse and repeat.
> > > > > > I tried to do ICSP but couldn't get it to work.
> > > > > >
> > > > > >   ----- Original Message -----
> > > > > >   From: bg3009
> > > > > >   To: p...@yahoogroups.com
> > > > > >   Sent: Sunday, November 30, 2003 8:53 AM
> > > > > >   Subject: [piclist] making USART useful
> > > > > >
> > > > > >
> > > > > >   I just bought a 877 chip for interfacing with my 818
viz
> > > IIC.
> > > > As
> > > > > I
> > > > > >   found out, this chip has USART on board and can be
> > > interfaced
> > > > > with a
> > > > > >   PC terminal. What kind of things can be done with such
a
> > > > > facility?
> > > > > >
> > > > > >   BG
> > > > > >
> > > > > >
> > > > > >         Yahoo! Groups Sponsor
> > > > > >               ADVERTISEMENT
> > > > > >             
> > > > > >       
> > > > > >       
> > > > > >
> > > > > >   to unsubscribe, go to http://www.yahoogroups.com and
> follow
> > > the
> > > > > instructions
> > > > > >
> > > > > >   Your use of Yahoo! Groups is subject to the Yahoo!
Terms
> of
> > > > > Service.



to unsubscribe, go to http://www.yahoogroups.com and follow the instructions

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Re: making USART useful - bg3009 - Dec 3 20:19:00 2003

Is there an online version somewhere which I can access? I am worried
about USART because if something as lowlevel has IIC has so much
implementation issure (30 interrupts? I am not suprised...) I am
thinking what USART would throw at me...

BG

--- In , techy fellow <techyf@y...> wrote:
> A constructional project called the 'ICEBreaker' is in the EPE
March 2000 issue. It is about using a 877 as an emulator and
debugger. The project was written by Mark Stuart. The board can be
connected to a PC and can also output signals/ text to a LCD. Not
sure whether you are looking for something similar to this one.
>
> bg3009 <bg3009@y...> wrote:well so much for small victories I
haven't even been able to make
> hello world come out on a LCD! But the real purpose I am thinking
of
> the USART is for debugging the MSSP which reads from a slave pic
some
> bits. So There has to be some way of seeing this bits come out of
the
> 877. I would be glad to see some value on the PC screen at least.
> Like send a read command so that the 877 reads from the slave via
IIC
> and then sends the data via USART to the PC so the values are
> reflected on the screen... Would that be still a walk in the part?
> Also, I am trying to do something different here.. (except maybe
> AN734) which is to make IIC communications more hassle free using
the
> least amount of code
>
> BG
>
> --- In , "Phil" <phil1960us@y...> wrote:
> > Compared to IIC, getting the USART working is a walk in the
park.
> > Its quite useful for simply printing out various values from your
> > program(s). For example, I'm using it to print the hex value of
> > various registers read by my mssp ISR using a terminal program on
> my
> > pc. (yes, I know it disrupts the timing of the IIC stuff but if
it
> > aint working you've got to see what's going on.) clearly there
are
> > more significant uses.
> >
> > I viewed getting the usart working as part of getting my tools in
> > line before tackling the real work. Plus, there is a certain
> > gratification actually seeing "hello world" come out of the pic.
> You
> > know you are on the right track. small victories...
> >
> > --- In , "bg3009" <bg3009@y...> wrote:
> > > Wow, this is beginning to look really complicated...I did look
> > > through the website and I feel that its what I need as far as
> USART
> > > is concerned. But I think I already have my hands full trying
to
> > > establish IIC link between two pics as the issues are almost
> > fraying
> > > my nerves.. The biggest prob is to monitor the output and what
> > could
> > > be the best way?
> > >
> > > BG
> > >
> > >
> > > --- In , "rtstofer" <rstofer@p...> wrote:
> > > >
> > > > I use PicLoader/BotLoader almost daily on my Mark III robots
> and
> > a
> > > > couple of development boards. The terminal mode is useful
for
> > > > debugging messages from the PIC. Mostly I just use it to
> > download
> > > > code for testing. No point in using a PIC programmer during
> the
> > > > early stages of development.
> > > >
> > > > I haven't needed I2C enough to work through the issues. I
did
> > have
> > > > it working on an OOPIC and an 80C552 with an I2C LCD display.
> > > >
> > > >
> > > > --- In , "bg3009" <bg3009@y...> wrote:
> > > > > rt,
> > > > >
> > > > > Have you tried this? I am hoping to make it read data
> from
> > > > > another chip using IIC and using USART to read that data
the
> > 877
> > > > gets
> > > > > from the slave... have u built this thing?
> > > > >
> > > > > BG
> > > > > --- In , "rtstofer" <rstofer@p...>
> wrote:
> > > > > > You can get the '877 resident PicLoader at
> > > > > > http://www.junun.org/MarkIII/PICLoader.jsp - just
download
> > the
> > > > hex
> > > > > > file unless you want to get into the assembly language
> > > details.
> > > > > > Program this into the chip. This version uses 38.4 kB
and
> is
> > > > > > modified from the version distributed by the author - Ric
> > > Farmer.
> > > > > >
> > > > > > Now get the BotLoader code from the files section at the
> > Yahoo
> > > > > > MiniSumo Mark III group. This is a Windows application
for
> > > > > > downloading .hex files to the '877. It also has a
terminal
> > > > window
> > > > > > for interactive communications with the chip.
> > > > > >
> > > > > > It is possible, but not supported, to communicate with
> > > PicLoader
> > > > > > using HyperTerminal. Just make sure the end-of-line
delay
> is
> > > > set
> > > > > at
> > > > > > 100 mS, no flow control, 38.4k,8,n,1 and there is a
chance
> it
> > > > will
> > > > > > work.
> > > > > >
> > > > > >
> > > > > > --- In , "Bob Hedges" <bhmtr@m...>
> > wrote:
> > > > > > > I installed a bootloader program on the 877 and program
> > with
> > > > the
> > > > > > serial port on my computer.
> > > > > > > I don't have to remove the chip, put it in the
> programmer,
> > > > > program
> > > > > > it, remove it from programmer, put it on circuit board.
> > > > > > > Rinse and repeat.
> > > > > > > I tried to do ICSP but couldn't get it to work.
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: bg3009
> > > > > > > To:
> > > > > > > Sent: Sunday, November 30, 2003 8:53 AM
> > > > > > > Subject: [piclist] making USART useful
> > > > > > >
> > > > > > >
> > > > > > > I just bought a 877 chip for interfacing with my 818
> viz
> > > > IIC.
> > > > > As
> > > > > > I
> > > > > > > found out, this chip has USART on board and can be
> > > > interfaced
> > > > > > with a
> > > > > > > PC terminal. What kind of things can be done with
such
> a
> > > > > > facility?
> > > > > > >
> > > > > > > BG
> > > > > > >
> > > > > > >
> > > > > > > Yahoo! Groups Sponsor
> > > > > > > ADVERTISEMENT
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > to unsubscribe, go to http://www.yahoogroups.com and
> > follow
> > > > the
> > > > > > instructions
> > > > > > >
> > > > > > > Your use of Yahoo! Groups is subject to the Yahoo!
> Terms
> > of
> > > > > > Service. > Yahoo! Groups Sponsor
> to unsubscribe, go to http://www.yahoogroups.com and follow the
instructions
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service. >
> ---------------------------------
>





(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )

Re: making USART useful - techy fellow - Dec 5 1:10:00 2003

Nop ! There isn't any online version. You will have to purchase the magazine from EPE website. It only cost GBP 3.00 for the magazine. Consider cheap cos it is a past issue. They charge GBP 2.00 for delivery though.

bg3009 <b...@yahoo.com> wrote:
Is there an online version somewhere which I can access? I am worried
about USART because if something as lowlevel has IIC has so much
implementation issure (30 interrupts? I am not suprised...) I am
thinking what USART would throw at me...

BG

--- In p...@yahoogroups.com, techy fellow <techyf@y...> wrote:
> A constructional project called the 'ICEBreaker' is in the EPE
March 2000 issue. It is about using a 877 as an emulator and
debugger. The project was written by Mark Stuart. The board can be
connected to a PC and can also output signals/ text to a LCD. Not
sure whether you are looking for something similar to this one.
>
> bg3009 <bg3009@y...> wrote:well so much for small victories I
haven't even been able to make
> hello world come out on a LCD! But the real purpose I am thinking
of
> the USART is for debugging the MSSP which reads from a slave pic
some
> bits. So There has to be some way of seeing this bits come out of
the
> 877. I would be glad to see some value on the PC screen at least.
> Like send a read command so that the 877 reads from the slave via
IIC
> and then sends the data via USART to the PC so the values are
> reflected on the screen... Would that be still a walk in the part?
> Also, I am trying to do something different here.. (except maybe
> AN734) which is to make IIC communications more hassle free using
the
> least amount of code
>
> BG
>
> --- In p...@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> > Compared to IIC, getting the USART working is a walk in the
park. 
> > Its quite useful for simply printing out various values from your
> > program(s).  For example, I'm using it to print the hex value of
> > various registers read by my mssp ISR using a terminal program on
> my
> > pc. (yes, I know it disrupts the timing of the IIC stuff but if
it
> > aint working you've got to see what's going on.)  clearly there
are
> > more significant uses.
> >
> > I viewed getting the usart working as part of getting my tools in
> > line before tackling the real work.  Plus, there is a certain
> > gratification actually seeing "hello world" come out of the pic. 
> You
> > know you are on the right track. small victories...
> >
> > --- In p...@yahoogroups.com, "bg3009" <bg3009@y...> wrote:
> > > Wow, this is beginning to look really complicated...I did look
> > > through the website and I feel that its what I need as far as
> USART
> > > is concerned. But I think I already have my hands full trying
to
> > > establish IIC link between two pics as the issues are almost
> > fraying
> > > my nerves.. The biggest prob is to monitor the output and what
> > could
> > > be the best way?
> > >
> > > BG
> > >
> > >
> > > --- In p...@yahoogroups.com, "rtstofer" <rstofer@p...> wrote:
> > > >
> > > > I use PicLoader/BotLoader almost daily on my Mark III robots
> and
> > a
> > > > couple of development boards.  The terminal mode is useful
for
> > > > debugging messages from the PIC.  Mostly I just use it to
> > download
> > > > code for testing.  No point in using a PIC programmer during
> the
> > > > early stages of development.
> > > >
> > > > I haven't needed I2C enough to work through the issues.  I
did
> > have
> > > > it working on an OOPIC and an 80C552 with an I2C LCD display.
> > > >
> > > >
> > > > --- In p...@yahoogroups.com, "bg3009" <bg3009@y...> wrote:
> > > > > rt,
> > > > >
> > > > >     Have you tried this? I am hoping to make it read data 
> from
> > > > > another chip using IIC and using USART to read that data
the
> > 877
> > > > gets
> > > > > from the slave... have u built this thing?
> > > > >
> > > > > BG
> > > > > --- In p...@yahoogroups.com, "rtstofer" <rstofer@p...>
> wrote:
> > > > > > You can get the '877 resident PicLoader at
> > > > > > http://www.junun.org/MarkIII/PICLoader.jsp - just
download
> > the
> > > > hex
> > > > > > file unless you want to get into the assembly language
> > > details. 
> > > > > > Program this into the chip.  This version uses 38.4 kB
and
> is
> > > > > > modified from the version distributed by the author - Ric
> > > Farmer.
> > > > > >
> > > > > > Now get the BotLoader code from the files section at the
> > Yahoo
> > > > > > MiniSumo Mark III group.  This is a Windows application
for
> > > > > > downloading .hex files to the '877.  It also has a
terminal
> > > > window
> > > > > > for interactive communications with the chip.
> > > > > >
> > > > > > It is possible, but not supported, to communicate with
> > > PicLoader
> > > > > > using HyperTerminal.  Just make sure the end-of-line
delay
> is
> > > > set
> > > > > at
> > > > > > 100 mS, no flow control, 38.4k,8,n,1 and there is a
chance
> it
> > > > will
> > > > > > work.
> > > > > >
> > > > > >
> > > > > > --- In p...@yahoogroups.com, "Bob Hedges" <bhmtr@m...>
> > wrote:
> > > > > > > I installed a bootloader program on the 877 and program
> > with
> > > > the
> > > > > > serial port on my computer.
> > > > > > > I don't have to remove the chip, put it in the
> programmer,
> > > > > program
> > > > > > it, remove it from programmer, put it on circuit board.
> > > > > > > Rinse and repeat.
> > > > > > > I tried to do ICSP but couldn't get it to work.
> > > > > > >
> > > > > > >   ----- Original Message -----
> > > > > > >   From: bg3009
> > > > > > >   To: p...@yahoogroups.com
> > > > > > >   Sent: Sunday, November 30, 2003 8:53 AM
> > > > > > >   Subject: [piclist] making USART useful
> > > > > > >
> > > > > > >
> > > > > > >   I just bought a 877 chip for interfacing with my 818
> viz
> > > > IIC.
> > > > > As
> > > > > > I
> > > > > > >   found out, this chip has USART on board and can be
> > > > interfaced
> > > > > > with a
> > > > > > >   PC terminal. What kind of things can be done with
such
> a
> > > > > > facility?
> > > > > > >
> > > > > > >   BG
> > > > > > >
> > > > > > >
> > > > > > >         Yahoo! Groups Sponsor
> > > > > > >               ADVERTISEMENT
> > > > > > >             
> > > > > > >       
> > > > > > >       
> > > > > > >
> > > > > > >   to unsubscribe, go to http://www.yahoogroups.com and
> > follow
> > > > the
> > > > > > instructions
> > > > > > >
> > > > > > >   Your use of Yahoo! Groups is subject to the Yahoo!
> Terms
> > of
> > > > > > Service.> Yahoo! Groups Sponsor
> to unsubscribe, go to http://www.yahoogroups.com and follow the
instructions
>
> Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.>
> ---------------------------------
>
Yahoo! Groups Sponsor

to unsubscribe, go to http://www.yahoogroups.com and follow the instructions

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Re: making USART useful - bg3009 - Dec 5 4:21:00 2003

great because i am calling from near down under in Singapore..
BG

--- In , techy fellow <techyf@y...> wrote:
> Nop ! There isn't any online version. You will have to purchase the
magazine from EPE website. It only cost GBP 3.00 for the magazine.
Consider cheap cos it is a past issue. They charge GBP 2.00 for
delivery though.
>
> bg3009 <bg3009@y...> wrote:Is there an online version somewhere
which I can access? I am worried
> about USART because if something as lowlevel has IIC has so much
> implementation issure (30 interrupts? I am not suprised...) I am
> thinking what USART would throw at me...
>
> BG
>
> --- In , techy fellow <techyf@y...> wrote:
> > A constructional project called the 'ICEBreaker' is in the EPE
> March 2000 issue. It is about using a 877 as an emulator and
> debugger. The project was written by Mark Stuart. The board can be
> connected to a PC and can also output signals/ text to a LCD. Not
> sure whether you are looking for something similar to this one.
> >
> > bg3009 <bg3009@y...> wrote:well so much for small victories I
> haven't even been able to make
> > hello world come out on a LCD! But the real purpose I am thinking
> of
> > the USART is for debugging the MSSP which reads from a slave pic
> some
> > bits. So There has to be some way of seeing this bits come out of
> the
> > 877. I would be glad to see some value on the PC screen at least.
> > Like send a read command so that the 877 reads from the slave via
> IIC
> > and then sends the data via USART to the PC so the values are
> > reflected on the screen... Would that be still a walk in the
part?
> > Also, I am trying to do something different here.. (except maybe
> > AN734) which is to make IIC communications more hassle free using
> the
> > least amount of code
> >
> > BG
> >
> > --- In , "Phil" <phil1960us@y...> wrote:
> > > Compared to IIC, getting the USART working is a walk in the
> park.
> > > Its quite useful for simply printing out various values from
your
> > > program(s). For example, I'm using it to print the hex value
of
> > > various registers read by my mssp ISR using a terminal program
on
> > my
> > > pc. (yes, I know it disrupts the timing of the IIC stuff but if
> it
> > > aint working you've got to see what's going on.) clearly there
> are
> > > more significant uses.
> > >
> > > I viewed getting the usart working as part of getting my tools
in
> > > line before tackling the real work. Plus, there is a certain
> > > gratification actually seeing "hello world" come out of the
pic.
> > You
> > > know you are on the right track. small victories...
> > >
> > > --- In , "bg3009" <bg3009@y...> wrote:
> > > > Wow, this is beginning to look really complicated...I did
look
> > > > through the website and I feel that its what I need as far as
> > USART
> > > > is concerned. But I think I already have my hands full trying
> to
> > > > establish IIC link between two pics as the issues are almost
> > > fraying
> > > > my nerves.. The biggest prob is to monitor the output and
what
> > > could
> > > > be the best way?
> > > >
> > > > BG
> > > >
> > > >
> > > > --- In , "rtstofer" <rstofer@p...>
wrote:
> > > > >
> > > > > I use PicLoader/BotLoader almost daily on my Mark III
robots
> > and
> > > a
> > > > > couple of development boards. The terminal mode is useful
> for
> > > > > debugging messages from the PIC. Mostly I just use it to
> > > download
> > > > > code for testing. No point in using a PIC programmer
during
> > the
> > > > > early stages of development.
> > > > >
> > > > > I haven't needed I2C enough to work through the issues. I
> did
> > > have
> > > > > it working on an OOPIC and an 80C552 with an I2C LCD
display.
> > > > >
> > > > >
> > > > > --- In , "bg3009" <bg3009@y...>
wrote:
> > > > > > rt,
> > > > > >
> > > > > > Have you tried this? I am hoping to make it read
data
> > from
> > > > > > another chip using IIC and using USART to read that data
> the
> > > 877
> > > > > gets
> > > > > > from the slave... have u built this thing?
> > > > > >
> > > > > > BG
> > > > > > --- In , "rtstofer" <rstofer@p...>
> > wrote:
> > > > > > > You can get the '877 resident PicLoader at
> > > > > > > http://www.junun.org/MarkIII/PICLoader.jsp - just
> download
> > > the
> > > > > hex
> > > > > > > file unless you want to get into the assembly language
> > > > details.
> > > > > > > Program this into the chip. This version uses 38.4 kB
> and
> > is
> > > > > > > modified from the version distributed by the author -
Ric
> > > > Farmer.
> > > > > > >
> > > > > > > Now get the BotLoader code from the files section at
the
> > > Yahoo
> > > > > > > MiniSumo Mark III group. This is a Windows application
> for
> > > > > > > downloading .hex files to the '877. It also has a
> terminal
> > > > > window
> > > > > > > for interactive communications with the chip.
> > > > > > >
> > > > > > > It is possible, but not supported, to communicate with
> > > > PicLoader
> > > > > > > using HyperTerminal. Just make sure the end-of-line
> delay
> > is
> > > > > set
> > > > > > at
> > > > > > > 100 mS, no flow control, 38.4k,8,n,1 and there is a
> chance
> > it
> > > > > will
> > > > > > > work.
> > > > > > >
> > > > > > >
> > > > > > > --- In , "Bob Hedges"
<bhmtr@m...>
> > > wrote:
> > > > > > > > I installed a bootloader program on the 877 and
program
> > > with
> > > > > the
> > > > > > > serial port on my computer.
> > > > > > > > I don't have to remove the chip, put it in the
> > programmer,
> > > > > > program
> > > > > > > it, remove it from programmer, put it on circuit board.
> > > > > > > > Rinse and repeat.
> > > > > > > > I tried to do ICSP but couldn't get it to work.
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: bg3009
> > > > > > > > To:
> > > > > > > > Sent: Sunday, November 30, 2003 8:53 AM
> > > > > > > > Subject: [piclist] making USART useful
> > > > > > > >
> > > > > > > >
> > > > > > > > I just bought a 877 chip for interfacing with my
818
> > viz
> > > > > IIC.
> > > > > > As
> > > > > > > I
> > > > > > > > found out, this chip has USART on board and can be
> > > > > interfaced
> > > > > > > with a
> > > > > > > > PC terminal. What kind of things can be done with
> such
> > a
> > > > > > > facility?
> > > > > > > >
> > > > > > > > BG
> > > > > > > >
> > > > > > > >
> > > > > > > > Yahoo! Groups Sponsor
> > > > > > > > ADVERTISEMENT
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > to unsubscribe, go to http://www.yahoogroups.com
and
> > > follow
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> > > > > > > >
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> > > of
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> >
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Re: Re: making USART useful - sergio masci - Dec 5 4:53:00 2003


----- Original Message -----
From: bg3009 <>
To: <>
Sent: Thursday, December 04, 2003 1:19 AM
Subject: [piclist] Re: making USART useful > Is there an online version somewhere which I can access? I am worried
> about USART because if something as lowlevel has IIC has so much
> implementation issure (30 interrupts? I am not suprised...) I am
> thinking what USART would throw at me...
>
> BG

I2C (IIC as you call it) is much more complicated than RS232 which is a
simple serial protocol.

Handling the USART is very simple and straight forward. The first thing you
really must do is get two PCs talking to each other using some sort of
simple terminal program. Don't bother trying to use hyperterm. Once you have
the two PCs talking try getting your PIC to just send characters to one of
them using "polled" I/O (not interrupts). Before launching off and writing
your own code see if you can find someone elses RS232 / PIC test code.
Something that is precompiled and just needs to be downloaded into your PIC.
This will excercise your hardware and prove that it is all connected and
working correctly. Then try your own send code. Once you have this working,
try and receive using the PIC (receive a character and send it back) again
using polled I/O.

Once you've done this, experiment with interrupts. Then concentrate on error
handling. Then flow control. Often your error handling will be trivial and
your flow control non-existant. It really is simple.

Regards
Sergio Masci

http://www.xcprod.com/titan/XCSB - optimising structured PIC BASIC compiler .




______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.


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Re: Re: making USART useful - sergio masci - Dec 5 21:28:00 2003

bg3009 wrote: > My my, this is really sounding like a walk in the part...today i met
> one of the local dealers for PICs..and the representative told me
> that he'd done IIC before..and it was simple.. and I was really
> aghast.. Reading the related papers, IIC seems simple, if two chips
> are throwing bits to each other.. but once u talk about real duplex
> communication.. I rather prefer a few more wires to a few more pages
> of code... So, if PC to PIC, what kind of software can i use on the
> PC itself if not hyperterm?
> BG Hi BG,

I normally use minicom on a Linux machine. I recently needed to get an old
notebook talking to a PIC so I resurrected an old copy of telix (for dos).
Works great. Teraterm is a great windows telnet client which I use often. It
also has serial capabilities although I've never used these so cannot give a
personal recommendation. But I can tell you that if you are not comfortable
solving RS232 problems hyperterm will make your life a misery.

Regards
Sergio Masci

http://www.xcprod.com/titan/XCSB - optimising structured PIC BASIC
.






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