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Re: [lpc2000] Slow OCD Remote/Insight debugging

2005-09-28 by Matthias Hertel

You do flash programming at 1MB/s on an LPC2xxx controller?

> 14K Wow.  And I thought the 1M rate I'm getting with the Signum 
> JetJTAG was slow.  I can't imagine doing tons of debuging at 14K.
>
> Chris.
>
>
>   ----- Original Message -----
>   From: Michael Johnson
>   To: lpc2000@yahoogroups.com
>   Sent: Monday, September 26, 2005 5:58 AM
>   Subject: Re: [lpc2000] Slow OCD Remote/Insight debugging
>
>
>   We've found that you can't drive the signals on a PC parallel port at
>   more than 4kHz (this is in GPIO/bit bang mode - EPP/ECP is a different
>   tale). Even with this limitation CrossWorks for ARM has a flash 
> download
>   speed of 14Kbytes per second to the LPC21xx.
>
>   Michael
>
>   >And what would that be?  I thought that a download of the OCD app 
> from the same people who make the hardware should likely work.  I can 
> understand some really limited features, but a 4kHz connection speed? 
> That really surprised me.
>   >
>   >Chris.
>   >
>   >  ----- Original Message -----
>   >  From: Michael Johnson
>   >  To: lpc2000@yahoogroups.com
>   >  Sent: Monday, September 26, 2005 4:37 AM
>   >  Subject: Re: [lpc2000] Slow OCD Remote/Insight debugging
>   >
>   >
>   >  Wigglers work - you just have to choose (perhaps even buy) the
>   >  appropriate software to drive them.
>   >
>   >  Michael
>   >
>   >  >I saw the same problem with the wiggler.  Had problems 
> connecting to my LPC2104 at anything but really low speeds.  The OCD 
> is not a professional level debugger.  In order to debug a program 
> that you intend to run in FLASH, you have to download your program 
> into FLASH.  OCD can't do this.
>   >  >
>   >  >I bought a Signum JTAGJet and it is worth it. It downloads and 
> programs to flash, as well as having a superb C/ASM debugger.   I use 
> the GNUARM for compiling, but I much prefer a professional debugger.
>   >  >
>   >  >Chris.
>   >  >
>   >  >
>   >  >  ----- Original Message -----
>   >  >  From: Blagoj Kupev
>   >  >  To: lpc2000@yahoogroups.com
>   >  >  Sent: Monday, September 26, 2005 12:09 AM
>   >  >  Subject: [lpc2000] Slow OCD Remote/Insight debugging
>   >  >
>   >  >
>   >  >  Hi there,
>   >  >
>   >  >  I'm beginner in ARM7 world and everything looks strange to me. 
> I've
>   >  >  build wiggler compatible interface and i have MCB2130 from 
> Keil. I have
>   >  >  few questions regarding debuging:
>   >  >  1. Why OCD Remote/Insight combination works 10 times slower 
> compared to
>   >  >  debug speed when i try to debug same SW using Rowley's Cross 
> Studio? (i can not
>   >  >  connect OCD Remote with speed parameter lower than 3).
>   >  >  2. I found some discussion but still it is not clear to me if 
> i can
>   >  >  debug sw in flash with OCD Remote? I read that OCD Remote does 
> not
>   >  >  support hardware breakpoints that is requred for debugging in 
> flash. Is
>   >  >  this true or i'm missing something?
>   >  >  Best regards,
>   >  >  Blagoj
>   >  >
>   >  >
>   >  >
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