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trouble programming our prototype board w/ lpc210x ISP

trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by bclapper29

We are working on a prototype board of our product with the LPC2105. 
When we try to flash our program, we are getting an error "can't 
communicate with test board". We have a serial cable connected to the 
Uart0 ports (pins 13, 14) through a MAX3232 converter. 

On the test board side, we have verified that the VDD3.3 and VDD1.8 
and GND are all connected correctly. RST is tied high and pin 44 
(P0.14) is tied low (to enable flash program mode). We checked to 
make sure the oscillator is operating correctly - it is. 

We, of course, have checked and rechecked that Tx and Rx are 
configured correctly from the pc to the test board.

I'm wondering if anyone has encountered any issues when programming 
the LPC that might be helpful for us to solve our dilemma? Is there 
something missing? 

Also, the other thing that we are confused about is when the flash 
programming utility gives us an error, we can't see any activity on 
either the Tx or Rx lines. We put a scope on those pins. How can it 
know whether or not it can connect to the test board, if it doesn't 
communicate to it?

Any help would be greatly appreciated.

Thanks,
Bryan

Re: [lpc2100] trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by capiman@t-online.de

Hello,

two hints:

1) Please restart the ISP software on PC after each trial. Bug ?
2) You need a reset pulse on RST, not a constant level !

When you don't use the ISP, but instead use a terminal programme,
you can send a '?' at any baudrate (i use 115200, 8N1) and when everything
is correct,
LPC should answer with "Synchronized" once (!). After this the '?' is echoed
back to PC.
When you reset LPC again, it answers again once with "Synchronized".

Hope it helps,

      Martin

----- Original Message -----
Show quoted textHide quoted text
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Friday, January 02, 2004 9:57 PM
Subject: [lpc2100] trouble programming our prototype board w/ lpc210x ISP


> We are working on a prototype board of our product with the LPC2105.
> When we try to flash our program, we are getting an error "can't
> communicate with test board". We have a serial cable connected to the
> Uart0 ports (pins 13, 14) through a MAX3232 converter.
>
> On the test board side, we have verified that the VDD3.3 and VDD1.8
> and GND are all connected correctly. RST is tied high and pin 44
> (P0.14) is tied low (to enable flash program mode). We checked to
> make sure the oscillator is operating correctly - it is.
>
> We, of course, have checked and rechecked that Tx and Rx are
> configured correctly from the pc to the test board.
>
> I'm wondering if anyone has encountered any issues when programming
> the LPC that might be helpful for us to solve our dilemma? Is there
> something missing?
>
> Also, the other thing that we are confused about is when the flash
> programming utility gives us an error, we can't see any activity on
> either the Tx or Rx lines. We put a scope on those pins. How can it
> know whether or not it can connect to the test board, if it doesn't
> communicate to it?
>
> Any help would be greatly appreciated.
>
> Thanks,
> Bryan
>
>
>
>
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
>  http://groups.yahoo.com/group/lpc2100/
>
> To unsubscribe from this group, send an email to:
>  lpc2100-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to:
>  http://docs.yahoo.com/info/terms/
>
>

Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by bclapper29

Hi Martin,

Is it a positive pulse? or negative?

.. Thanks for your help,

bryan




--- In lpc2100@yahoogroups.com, capiman@t... wrote:
> Hello,
> 
> two hints:
> 
> 1) Please restart the ISP software on PC after each trial. Bug ?
> 2) You need a reset pulse on RST, not a constant level !
> 
> When you don't use the ISP, but instead use a terminal programme,
> you can send a '?' at any baudrate (i use 115200, 8N1) and when 
everything
> is correct,
> LPC should answer with "Synchronized" once (!). After this the '?' 
is echoed
> back to PC.
> When you reset LPC again, it answers again once with "Synchronized".
> 
> Hope it helps,
> 
>       Martin
> 
> ----- Original Message ----- 
> From: "bclapper29" <clapper@d...>
> To: <lpc2100@yahoogroups.com>
> Sent: Friday, January 02, 2004 9:57 PM
> Subject: [lpc2100] trouble programming our prototype board w/ 
lpc210x ISP
> 
> 
> > We are working on a prototype board of our product with the 
LPC2105.
> > When we try to flash our program, we are getting an error "can't
> > communicate with test board". We have a serial cable connected to 
the
> > Uart0 ports (pins 13, 14) through a MAX3232 converter.
> >
> > On the test board side, we have verified that the VDD3.3 and 
VDD1.8
> > and GND are all connected correctly. RST is tied high and pin 44
> > (P0.14) is tied low (to enable flash program mode). We checked to
> > make sure the oscillator is operating correctly - it is.
> >
> > We, of course, have checked and rechecked that Tx and Rx are
> > configured correctly from the pc to the test board.
> >
> > I'm wondering if anyone has encountered any issues when 
programming
> > the LPC that might be helpful for us to solve our dilemma? Is 
there
> > something missing?
> >
> > Also, the other thing that we are confused about is when the flash
> > programming utility gives us an error, we can't see any activity 
on
> > either the Tx or Rx lines. We put a scope on those pins. How can 
it
> > know whether or not it can connect to the test board, if it 
doesn't
Show quoted textHide quoted text
> > communicate to it?
> >
> > Any help would be greatly appreciated.
> >
> > Thanks,
> > Bryan
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> > To visit your group on the web, go to:
> >  http://groups.yahoo.com/group/lpc2100/
> >
> > To unsubscribe from this group, send an email to:
> >  lpc2100-unsubscribe@yahoogroups.com
> >
> > Your use of Yahoo! Groups is subject to:
> >  http://docs.yahoo.com/info/terms/
> >
> >

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by capiman@t-online.de

Hello,

i have a push button on my circuit which connects reset to low.
When i don't press it, it goes to high (3 volt).
For details, please have a look at Leon's page:

http://www.geocities.com/leon_heller/lpc2104.html

Greetings,

         Martin

----- Original Message ----- 
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Friday, January 02, 2004 10:18 PM
Subject: [lpc2100] Re: trouble programming our prototype board w/ lpc210x
ISP
Show quoted textHide quoted text
> Hi Martin,
>
> Is it a positive pulse? or negative?
>
> .. Thanks for your help,
>
> bryan
>
>
>
>
> --- In lpc2100@yahoogroups.com, capiman@t... wrote:
> > Hello,
> >
> > two hints:
> >
> > 1) Please restart the ISP software on PC after each trial. Bug ?
> > 2) You need a reset pulse on RST, not a constant level !
> >
> > When you don't use the ISP, but instead use a terminal programme,
> > you can send a '?' at any baudrate (i use 115200, 8N1) and when
> everything
> > is correct,
> > LPC should answer with "Synchronized" once (!). After this the '?'
> is echoed
> > back to PC.
> > When you reset LPC again, it answers again once with "Synchronized".
> >
> > Hope it helps,
> >
> >       Martin
> >
> > ----- Original Message ----- 
> > From: "bclapper29" <clapper@d...>
> > To: <lpc2100@yahoogroups.com>
> > Sent: Friday, January 02, 2004 9:57 PM
> > Subject: [lpc2100] trouble programming our prototype board w/
> lpc210x ISP
> >
> >
> > > We are working on a prototype board of our product with the
> LPC2105.
> > > When we try to flash our program, we are getting an error "can't
> > > communicate with test board". We have a serial cable connected to
> the
> > > Uart0 ports (pins 13, 14) through a MAX3232 converter.
> > >
> > > On the test board side, we have verified that the VDD3.3 and
> VDD1.8
> > > and GND are all connected correctly. RST is tied high and pin 44
> > > (P0.14) is tied low (to enable flash program mode). We checked to
> > > make sure the oscillator is operating correctly - it is.
> > >
> > > We, of course, have checked and rechecked that Tx and Rx are
> > > configured correctly from the pc to the test board.
> > >
> > > I'm wondering if anyone has encountered any issues when
> programming
> > > the LPC that might be helpful for us to solve our dilemma? Is
> there
> > > something missing?
> > >
> > > Also, the other thing that we are confused about is when the flash
> > > programming utility gives us an error, we can't see any activity
> on
> > > either the Tx or Rx lines. We put a scope on those pins. How can
> it
> > > know whether or not it can connect to the test board, if it
> doesn't
> > > communicate to it?
> > >
> > > Any help would be greatly appreciated.
> > >
> > > Thanks,
> > > Bryan
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > > To visit your group on the web, go to:
> > >  http://groups.yahoo.com/group/lpc2100/
> > >
> > > To unsubscribe from this group, send an email to:
> > >  lpc2100-unsubscribe@yahoogroups.com
> > >
> > > Your use of Yahoo! Groups is subject to:
> > >  http://docs.yahoo.com/info/terms/
> > >
> > >
>
>
>
>
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
>  http://groups.yahoo.com/group/lpc2100/
>
> To unsubscribe from this group, send an email to:
>  lpc2100-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to:
>  http://docs.yahoo.com/info/terms/
>
>

Re: [lpc2100] trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by Leon Heller

----- Original Message -----
Show quoted textHide quoted text
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Friday, January 02, 2004 8:57 PM
Subject: [lpc2100] trouble programming our prototype board w/ lpc210x ISP


> We are working on a prototype board of our product with the LPC2105.
> When we try to flash our program, we are getting an error "can't
> communicate with test board". We have a serial cable connected to the
> Uart0 ports (pins 13, 14) through a MAX3232 converter.
>
> On the test board side, we have verified that the VDD3.3 and VDD1.8
> and GND are all connected correctly. RST is tied high and pin 44
> (P0.14) is tied low (to enable flash program mode). We checked to
> make sure the oscillator is operating correctly - it is.
>
> We, of course, have checked and rechecked that Tx and Rx are
> configured correctly from the pc to the test board.
>
> I'm wondering if anyone has encountered any issues when programming
> the LPC that might be helpful for us to solve our dilemma? Is there
> something missing?
>
> Also, the other thing that we are confused about is when the flash
> programming utility gives us an error, we can't see any activity on
> either the Tx or Rx lines. We put a scope on those pins. How can it
> know whether or not it can connect to the test board, if it doesn't
> communicate to it?

Is the oscillator frequency correct? Are you getting the value on the
crystal? You can check it on a SW radio if you haven't got a counter.

Also, you need to set it for the ISP utility. I forgot this when I tested my
first board; it worked but wasn't very reliable.

Start off with the baud rate set for 9600, it's less critical.

Have you got a reset switch? I use an RC circuit with the switch across the
C.

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by bclapper29

--- In lpc2100@yahoogroups.com, "Leon Heller" <leon_heller@h...> 
wrote:
<snip> 

> Is the oscillator frequency correct? Are you getting the value on 
the
> crystal? You can check it on a SW radio if you haven't got a 
counter.
>

We have verified the frequency and have the corresponding value in 
the ISP program (14745). 
 
> Also, you need to set it for the ISP utility. I forgot this when I 
tested my
> first board; it worked but wasn't very reliable.
> 
> Start off with the baud rate set for 9600, it's less critical.

That's what we are using as well. 

Last night we were able to get it to work once, but today - we don't 
seem to be having any luck. We were hoping to see if there was 
something we were missing. But it *seems* like we've got everything 
covered. I wonder if it's something on the PC side. All the other 
designs (the ashling board, your board (Leon) use the MAX3232 
converter). We didn't have that on our board, and so we connected our 
PC to the ashling board and then jumpered the Rx and Tx pins to our 
board. (worked once or twice last night but not today). 

Ah, life's mysteries!  Anybody available by phone that we might be 
able to confer with? We'll pay for the call, of course!

Thanks,
Bryan

> 
> Have you got a reset switch? I use an RC circuit with the switch 
across the
Show quoted textHide quoted text
> C.
> 
> Leon
> --
> Leon Heller, G1HSM
> Email: aqzf13@d...
> My low-cost Philips LPC210x ARM development system:
> http://www.geocities.com/leon_heller/lpc2104.html

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by capiman@t-online.de

And you have opened Rx and Tx on the ashlin board ?
And the ashling board can be accessed ?

----- Original Message ----- 
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Friday, January 02, 2004 10:51 PM
Subject: [lpc2100] Re: trouble programming our prototype board w/ lpc210x
ISP
Show quoted textHide quoted text
> --- In lpc2100@yahoogroups.com, "Leon Heller" <leon_heller@h...>
> wrote:
> <snip>
>
> > Is the oscillator frequency correct? Are you getting the value on
> the
> > crystal? You can check it on a SW radio if you haven't got a
> counter.
> >
>
> We have verified the frequency and have the corresponding value in
> the ISP program (14745).
>
> > Also, you need to set it for the ISP utility. I forgot this when I
> tested my
> > first board; it worked but wasn't very reliable.
> >
> > Start off with the baud rate set for 9600, it's less critical.
>
> That's what we are using as well.
>
> Last night we were able to get it to work once, but today - we don't
> seem to be having any luck. We were hoping to see if there was
> something we were missing. But it *seems* like we've got everything
> covered. I wonder if it's something on the PC side. All the other
> designs (the ashling board, your board (Leon) use the MAX3232
> converter). We didn't have that on our board, and so we connected our
> PC to the ashling board and then jumpered the Rx and Tx pins to our
> board. (worked once or twice last night but not today).
>
> Ah, life's mysteries!  Anybody available by phone that we might be
> able to confer with? We'll pay for the call, of course!
>
> Thanks,
> Bryan
>
> >
> > Have you got a reset switch? I use an RC circuit with the switch
> across the
> > C.
> >
> > Leon
> > --
> > Leon Heller, G1HSM
> > Email: aqzf13@d...
> > My low-cost Philips LPC210x ARM development system:
> > http://www.geocities.com/leon_heller/lpc2104.html
>
>
>
>
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
>  http://groups.yahoo.com/group/lpc2100/
>
> To unsubscribe from this group, send an email to:
>  lpc2100-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to:
>  http://docs.yahoo.com/info/terms/
>
>

Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by bclapper29

--- In lpc2100@yahoogroups.com, capiman@t... wrote:
> And you have opened Rx and Tx on the ashlin board ?
> And the ashling board can be accessed ?
> 

yes. They have jumps on the Tx and Rx lines. We've pulled those 
jumpers off and connected our wires to them.

I'm not sure what you mean by 'opened'. Does anyone know if the Rx or 
Tx need to be pulled up or down?

Thanks,
Bryan

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by Leon Heller

----- Original Message -----
Show quoted textHide quoted text
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Friday, January 02, 2004 9:59 PM
Subject: [lpc2100] Re: trouble programming our prototype board w/ lpc210x
ISP


> --- In lpc2100@yahoogroups.com, capiman@t... wrote:
> > And you have opened Rx and Tx on the ashlin board ?
> > And the ashling board can be accessed ?
> >
>
> yes. They have jumps on the Tx and Rx lines. We've pulled those
> jumpers off and connected our wires to them.
>
> I'm not sure what you mean by 'opened'. Does anyone know if the Rx or
> Tx need to be pulled up or down?

The MAX3232 has internal pullups on the inputs.

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-02 by bclapper29

Is there any way that we can test to see if the LPC210x is actually 
in Flash Programming mode? Can we test a pin configuration on the 
device to determine if it actually made it?

Can we program the device through the JTAG device pins without using 
a JTAG device? 

Any other workarounds we might consider?

Thanks,
Bryan




--- In lpc2100@yahoogroups.com, "Leon Heller" <leon_heller@h...> 
wrote:
> 
> ----- Original Message ----- 
> From: "bclapper29" <clapper@d...>
> To: <lpc2100@yahoogroups.com>
> Sent: Friday, January 02, 2004 9:59 PM
> Subject: [lpc2100] Re: trouble programming our prototype board w/ 
lpc210x
> ISP
> 
> 
> > --- In lpc2100@yahoogroups.com, capiman@t... wrote:
> > > And you have opened Rx and Tx on the ashlin board ?
> > > And the ashling board can be accessed ?
> > >
> >
> > yes. They have jumps on the Tx and Rx lines. We've pulled those
> > jumpers off and connected our wires to them.
> >
> > I'm not sure what you mean by 'opened'. Does anyone know if the 
Rx or
Show quoted textHide quoted text
> > Tx need to be pulled up or down?
> 
> The MAX3232 has internal pullups on the inputs.
> 
> Leon
> --
> Leon Heller, G1HSM
> Email: aqzf13@d...
> My low-cost Philips LPC210x ARM development system:
> http://www.geocities.com/leon_heller/lpc2104.html

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-03 by Leon Heller

----- Original Message -----
Show quoted textHide quoted text
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Friday, January 02, 2004 10:48 PM
Subject: [lpc2100] Re: trouble programming our prototype board w/ lpc210x
ISP


> Is there any way that we can test to see if the LPC210x is actually
> in Flash Programming mode? Can we test a pin configuration on the
> device to determine if it actually made it?

I don't think there is.


>
> Can we program the device through the JTAG device pins without using
> a JTAG device?

It's basically a clocked serial input. You need to use the procedures
described in the User Manual.

I've programmed an Altera FPGA from an MCU using a similar procedure.

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-03 by Leon Heller

Another thought - are you sure that you don't have a poor solder joint on
the LPC chip? It might be worth inspecting them all very carefully; I prod
them with a scalpel tip and see if they move, using a powerful magnifier, if
I'm not sure. I've had virtually no trouble with solder joints since I got a
Metcal soldering station with a 'mini-hoof' tip made especially for drag
soldering.

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-03 by Robert Adsett

One other thing I haven't seen mentioned here yet.  You do have P0.14 
pulled low when you are programming?

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-03 by bclapper29

Yes. We definitely had P0.14 pulled low while programming. We tried 
various combinations of things but primarily it included (1) supply 
power to the device, (2) pull P0.14 (pin 44) low, (3) toggle RST.

We lucked out twice with this process and successfully loaded a small 
program which toggled some LEDs. We feel reasonably confident that we 
were able to get the device into 'ISP' mode, because when we'd supply 
the power, the program would run, then after pulling p0.14 low and 
toggling the RST pin, the program would stop executing.

Originally, we just let the RST pin float.... then changed that after 
reading in the manual that we could also get the LPC in ISP mode when 
pulsing RST after pulling pin 44 low. 

... as Leon suggests, maybe we've got a bad solder connection 
somewhere. We did test all pins involved individually.

Thanks,
Bryan

--- In lpc2100@yahoogroups.com, Robert Adsett <subscriptions@a...> 
wrote:
> One other thing I haven't seen mentioned here yet.  You do have 
P0.14 
> pulled low when you are programming?
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always 
restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try 
to
Show quoted textHide quoted text
> chew a radio signal. "
> 
>                          Kelvin Throop, III

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-04 by Robert Adsett

Just reading through the whole thread to see if anything occurs to me.

A couple of things to check.

At 09:51 PM 1/2/04 +0000, you wrote:
>Last night we were able to get it to work once, but today - we don't
>seem to be having any luck. We were hoping to see if there was
>something we were missing. But it *seems* like we've got everything
>covered. I wonder if it's something on the PC side. All the other
>designs (the ashling board, your board (Leon) use the MAX3232
>converter). We didn't have that on our board, and so we connected our
>PC to the ashling board and then jumpered the Rx and Tx pins to our
>board. (worked once or twice last night but not today).

Did you try a different CPU than the one you hooked up to the serial port 
directly?  The CPU is 5V tolerant but I doubt it likes RS-232 levels very 
much.  That would damage the Rx line on the CPU (It might even appear to be 
intermittent).

Also you mentioned that you are pretty sure you got it into ISP mode 
because the program doesn't start (sounds like a good test).  Have you 
tried simply using a serial terminal to run through the first few steps of 
the communication when it is in that mode?  And compared it with the 
ashling board?

Robert


" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-04 by bclapper29

--- In lpc2100@yahoogroups.com, Robert Adsett <subscriptions@a...> 
wrote:
...snip....
> Did you try a different CPU than the one you hooked up to the 
serial port 
> directly?  The CPU is 5V tolerant but I doubt it likes RS-232 
levels very 
> much.  That would damage the Rx line on the CPU (It might even 
appear to be 
> intermittent).
> 

The first time we tried it directly from the serial port and when it 
didn't work, we thought we fried the Tx and Rx pins - subsequently, 
we connected to the Tx and Rx lines on the Ashling board. (Which went 
through the MAX3232 converter. This brought the voltage down to 3.3.

> Also you mentioned that you are pretty sure you got it into ISP 
mode 
> because the program doesn't start (sounds like a good test).  Have 
you 
> tried simply using a serial terminal to run through the first few 
steps of 
> the communication when it is in that mode?  And compared it with 
the 
> ashling board?
>

Actually we didn't try that. Would we use Hyperterminal or Telnet?
Not sure exactly how to do this. Any examples published anywhere?
I assume that using this technique we could step through the ISP 
protocol to confirm if we are talking to the device? Right?

Thanks,
Bryan 
 
> Robert
> 
> 
> " 'Freedom' has no meaning of itself.  There are always 
restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try 
to
Show quoted textHide quoted text
> chew a radio signal. "
> 
>                          Kelvin Throop, III

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-04 by Leon Heller

----- Original Message -----
Show quoted textHide quoted text
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Sunday, January 04, 2004 4:07 AM
Subject: [lpc2100] Re: trouble programming our prototype board w/ lpc210x
ISP


> --- In lpc2100@yahoogroups.com, Robert Adsett <subscriptions@a...>
> wrote:
> ...snip....
> > Did you try a different CPU than the one you hooked up to the
> serial port
> > directly?  The CPU is 5V tolerant but I doubt it likes RS-232
> levels very
> > much.  That would damage the Rx line on the CPU (It might even
> appear to be
> > intermittent).
> >
>
> The first time we tried it directly from the serial port and when it
> didn't work, we thought we fried the Tx and Rx pins - subsequently,
> we connected to the Tx and Rx lines on the Ashling board. (Which went
> through the MAX3232 converter. This brought the voltage down to 3.3.
>
> > Also you mentioned that you are pretty sure you got it into ISP
> mode
> > because the program doesn't start (sounds like a good test).  Have
> you
> > tried simply using a serial terminal to run through the first few
> steps of
> > the communication when it is in that mode?  And compared it with
> the
> > ashling board?
> >
>
> Actually we didn't try that. Would we use Hyperterminal or Telnet?
> Not sure exactly how to do this. Any examples published anywhere?
> I assume that using this technique we could step through the ISP
> protocol to confirm if we are talking to the device? Right?

It's documented in the User Manual: p 179.

Hyperterminal should work.

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-04 by Robert Adsett

At 09:43 AM 1/4/04 +0000, you wrote:

> > > Also you mentioned that you are pretty sure you got it into ISP
> > mode
> > > because the program doesn't start (sounds like a good test).  Have
> > you
> > > tried simply using a serial terminal to run through the first few
> > steps of
> > > the communication when it is in that mode?  And compared it with
> > the
> > > ashling board?
> > >
> >
> > Actually we didn't try that. Would we use Hyperterminal or Telnet?
> > Not sure exactly how to do this. Any examples published anywhere?
> > I assume that using this technique we could step through the ISP
> > protocol to confirm if we are talking to the device? Right?
>
>It's documented in the User Manual: p 179.
>
>Hyperterminal should work.
>
>Leon

Hyperterminal does work, I've used it myself.  I went has far as reading 
version numbers to test the communications and it's fairly straightforward.

Robert


" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

Question for Ashling EVBA7 users

2004-01-04 by Curt Powell

Any ashling EVBA7 users out there can perhaps answer this question:
After several months of using the board plugged in to the USB port, now
when I plug it in, nothing happens (no lights, no nothin').  Needless to
say, Pathfinder doesn't see the board, either.  Has anyone experienced
this, or can anyone suggest anything to try to get the board working
again?
 
TIA,
 
Curt

RE: [lpc2100] Question for Ashling EVBA7 users

2004-01-05 by Hugh O'Keeffe

Hi Curt,
Does Windows see the board attached and report it working correctly ?
(check Device Manager in Windows Control Panel). 
 
Mail me back directly on hugh.okeeffe@...
 



Hugh @ http://www.ashling.com/support/lpc2100/
Show quoted textHide quoted text
 -----Original Message-----
From: Curt Powell [mailto:curt.powell@...] 
Sent: 04 January 2004 18:48
To: lpc2100@yahoogroups.com
Subject: [lpc2100] Question for Ashling EVBA7 users



Any ashling EVBA7 users out there can perhaps answer this question:
After several months of using the board plugged in to the USB port, now
when I plug it in, nothing happens (no lights, no nothin').  Needless to
say, Pathfinder doesn't see the board, either.  Has anyone experienced
this, or can anyone suggest anything to try to get the board working
again?
 
TIA,
 
Curt

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Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-07 by bclapper29

--- In lpc2100@yahoogroups.com, Robert Adsett <subscriptions@a...> 
wrote:
> At 09:43 AM 1/4/04 +0000, you wrote:

... snip ....

> > Hyperterminal should work.
> >
> >Leon
> 
> Hyperterminal does work, I've used it myself.  I went has far as 
reading 
> version numbers to test the communications and it's fairly 
straightforward.
> 
> Robert

As noted, Hyperterminal does work. I find it peculiar that I can 
connect with Hyperterminal but I get a serial synchronization error 
with both FLASHLPC and LPC210x ISP tools.   Maybe I'll have to write 
each sector myself with Hyperterminal! :-0 

I've toyed with all the baud rate and packet size settings. If anyone 
has any other tools that I might try. I'd greatly appreciate it. 

Thanks,
Bryan

Re: [lpc2100] Re: trouble programming our prototype board w/ lpc210x ISP

2004-01-07 by Leon Heller

----- Original Message -----
Show quoted textHide quoted text
From: "bclapper29" <clapper@...>
To: <lpc2100@yahoogroups.com>
Sent: Wednesday, January 07, 2004 1:09 AM
Subject: [lpc2100] Re: trouble programming our prototype board w/ lpc210x
ISP


> --- In lpc2100@yahoogroups.com, Robert Adsett <subscriptions@a...>
> wrote:
> > At 09:43 AM 1/4/04 +0000, you wrote:
>
> ... snip ....
>
> > > Hyperterminal should work.
> > >
> > >Leon
> >
> > Hyperterminal does work, I've used it myself.  I went has far as
> reading
> > version numbers to test the communications and it's fairly
> straightforward.
> >
> > Robert
>
> As noted, Hyperterminal does work. I find it peculiar that I can
> connect with Hyperterminal but I get a serial synchronization error
> with both FLASHLPC and LPC210x ISP tools.   Maybe I'll have to write
> each sector myself with Hyperterminal! :-0
>
> I've toyed with all the baud rate and packet size settings. If anyone
> has any other tools that I might try. I'd greatly appreciate it.

Realterm is a lot better than Hyperterminal for this sort of thing:

http://realterm.sourceforge.net/

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

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