Lpc2000

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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