Lpc2000

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?
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> >Yahoo! Groups Links
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