Lpc2000

Thanks Hugh,

I'm currently running IAP's on a PLL using lpc2129's (version 1.53 
bootloader). So far, no problems yet.

I notice that the errata also applies to lpc's with bootloader 
versions below 1.52. 

It is possible that lpc's (bootloader 1.52 and above) won't 
experience this problem?

Leighton
 

--- In lpc2000@yahoogroups.com, "Hugh O'Keeffe" <hugh.okeeffe@a...> 
wrote:
> Has everyone seen the LPC2000 errata at:
>  
> http://www.semiconductors.philips.com/acrobat/erratasheets/2105.pdf
>  
> Interestingly, there is a new version of the boot loader (the on-
chip code
> that resides in LPC2000) which is upgradeable using the Philips 
ISP utility.
> Details and files are here:
>  
> 
http://www.semiconductors.philips.com/files/products/standard/microco
ntrolle
> rs/utilities/lpc2000_bl_update.zip
>  
>  
> It seems that the IAP software (in the boot loader) has some 
timing issues
> resulting in a possible 1 in 10 flash programming failure, 
particularly when
> the PLL is enabled and running > 12MHz. Note: this effects all 
methods of
> flash programming (i.e. via UART using Philips ISP or JTAG using 
Ashling
> PathFinder or other Debuggers) as these all call the IAP routines. 
>  
> I have personally tried the upgrade and it works smoothly using 
the Philips
> ISP utility; I 'm looking at implementing a PathFinder script for 
Ashling
> users to allow updating via JTAG
>  
> HTH, Hugh @  <http://www.ashling.com/support/lpc2000/>
> http://www.ashling.com/support/lpc2000/
> 
> 
> [Non-text portions of this message have been removed]