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Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: Newbee: bootloader locked.

2006-03-21 by planiup

Thanks Richard:

I suspected it, and as far as I could see that IAR examples for LPC2106 
uses the TinyC_startup.asm (or something similar), I use the same. I 
read the program and I tried to use it. What I thought about that is 
the debuger sets the checksum automatically, but I'm not shure. I will 
ask about that with a different post about IAR/Wiggler issue, as Dave 
suggessted.

Also I will try do download the code using Philips FlashTools in order 
to see if it is the problem.

Anyway, I suspect that maybe there is another problem with the 1.8V 
line that can cause a wrong behavior, but now I couldn't check. I 
suspect this because sometimes appears some error message regarding 
that the system can't be put in background mode, or even that the cable 
is disconnected or no target present.

I will post results when I could.

Guillem.


--- In lpc2000@yahoogroups.com, "rtstofer" <rstofer@...> wrote:
>
> 
> SOMETHING is responsible for setting up the checksum.  It is done
> automatically when using the Philips ISP programmer.  I don't know how
> Keil does it but it should be documented somewhere.
> 
> Rowley does it by hard coding the constant in the device specific
> startup code.  In my case this is Philips_LPC210X_Startup.s.
> 
> There is no getting around having a proper checksum if you want to
> start the program automatically.
> 
> Richard
>

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