Lpc2000

Hello everybody!
This is my first message on thi board.
Is there anybody on this board doing In Application Programming by 
application, running on Rowley CTL kernel?

Hi Eli,

We ship the source code of the flash loader in the CrossWorks for ARM 
distribution which could be a place to start. Other things to beware of 
is that the code must be executing in RAM (place the functions in the 
.fast section) and you'll have to disable global interrupts to avoid a 
task switch in the middle of the flash programming.

Regards
Michael

>Hello everybody!
>This is my first message on thi board.
>Is there anybody on this board doing In Application Programming by 
>application, running on Rowley CTL kernel?
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> 
>Yahoo! Groups Links
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Hi Michael,
Probably I will have to write some separate code loader application, 
to be run in RAM.

My software download scenario is as follows:
1. The CTL application runs normally and then it receives 
START_PROGRAM_DOWNLOAD command (through some proprietary serial 
protocol).
2. I presume that the command processor task will have to disable 
IRQ and FIQ interrupts (I use both of them), copy a ram runnable 
image of software loader application from flash to RAM, and start it.
3. Probably the loader application can be a CTL application too. It 
will respond only to software download part of the serial 
communication protocol. The reason, I want to run a CTL application 
for the download is that I want to use the same serial drivers and 
the same RS-422 Tx driver enable/disable timing mechanism, I use in 
the main application. Every time a RECEIVE_PROGRAM_RECORD command is 
received, it may call an IAP function to program the flash. 
4. After the software download completes, an END_PROGRAM_DOWNLOAD 
command is received. On reception, the loader application will 
disable all interrupts, and reboot the LPC2106.

I will be glad to have your remarks. In addition, if there is 
anybody on the board that already did IAP inside a CTL application 
and wants to share the experience, it may be of benefit to all the 
board members.


Many thanks,
Eli. 



--- In lpc2000@yahoogroups.com, Michael Johnson <mpj@r...> wrote:
> Hi Eli,
> 
> We ship the source code of the flash loader in the CrossWorks for 
ARM 
> distribution which could be a place to start. Other things to 
beware of 
> is that the code must be executing in RAM (place the functions in 
the 
> .fast section) and you'll have to disable global interrupts to 
avoid a 
> task switch in the middle of the flash programming.
> 
> Regards
> Michael
> 
> >Hello everybody!
> >This is my first message on thi board.
> >Is there anybody on this board doing In Application Programming 
by 

> >application, running on Rowley CTL kernel?
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > 
> >Yahoo! Groups Links
> >
> >
> >
> > 
> >
> >
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> >  
> >