Hi! Did anyone try to program the MSP Flash Memory (program) remotely
 ? Could it be done by software ? In this last question I mean send 
program information to the MSP storing it into a ram or External Flash 
and then programming this code into MSP flash.

franco_bucafusco escribi
> Hi! Did anyone try to program the MSP Flash Memory
(program) remotely
>  ? Could it be done by software ? In this last question I mean send 
> program information to the MSP storing it into a ram or External Flash 
> and then programming this code into MSP flash.
>
>   
Hi Franco,

What do yo uunderstand fr remote programion... you are talking about
remote download ?
In this case we have a similar question... we should to update the
firmware via radio...  any idea or tool will be welcomed.

Mario Comas
amrsystems, sl
>
>
>
>
> .
>
>  
> Yahoo! Groups Links
>
>
>
>  
>
>
>
>   

On Fri, May 26, 2006 at 08:29:55PM -0000, franco_bucafusco wrote:
> Hi! Did anyone try to program the MSP Flash Memory
(program) remotely
>  ? Could it be done by software ? In this last question I mean send 
> program information to the MSP storing it into a ram or External Flash 
> and then programming this code into MSP flash.

Yes - in my current project, I send a new program via RF to the MSP430.  Since
my program is less 
than 1/2 the available flash memory on the MSP430, what I do is store the new
program directly 
into the upper half of flash as it comes in form the RF data stream.  Once the
upload is complete, 
I check the contents with a CRC.  If all's well, I jump to a special flash
copy routine in the 
highest part of program memory (it should not be updated!), and it copies the
contents of the 
second half of flash program memory down to the first half (after having erased
the first half, 
or course).  This flash copy routine also updates the vectors at FFE2-FFFF,
since they can be 
different for a new program.  Then, I make sure the watchdog is enabled, and run
a for(;;) loop to 
have the watchdog reset the micro.  The new program begins.  It works very well
for me.

The fun thing is that I am doing this using inductive power coupling, which
supplies both the 
power and the RF data link.  Amazingly, the strong electromagnetic field does
not appear to cause 
problems when writing to flash...

Take care,
-Chris

This has been discussed here at length on several occasions, and been 
implemented by many of us. Check back through the posting history, I 
know it isn't easy, but there is a lot of stuff there. perhaps one day 
it might be indexed into a FAQ or something similar.

Al

franco_bucafusco wrote:

>Hi! Did anyone try to program the MSP Flash Memory
(program) remotely
> ? Could it be done by software ? In this last question I mean send 
>program information to the MSP storing it into a ram or External Flash 
>and then programming this code into MSP flash.
>
>
>
>
>
>
>.
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
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>  
>

We are currently developing a product that does this -- firwmare
updating.  It's not too hard if you can architect a situation where
you do not overwrite the flash segments from which you're running. 
That is, your "upgrade" or "bootload" code should be
isolated and
protected from the code you want to re-program.

We do not execute code from RAM (although it is certainly an option).
 The would theorectically give you the option of re-flashing the whole
program, including your boot loader, but it's too risky in our
application.

Stuart

--- In msp430@msp4..., "franco_bucafusco" <bukitoo@...> wrote:
>
> Hi! Did anyone try to program the MSP Flash Memory (program) remotely
>  ? Could it be done by software ? In this last question I mean send 
> program information to the MSP storing it into a ram or External Flash 
> and then programming this code into MSP flash.
>

Deluge from the TinyOS project is what you want to take a look at.  \
It assumes of course that you have a radio - TinyOS has a stack for 
802.15.4.
Take a look - it works pretty good.

Regards,
John W.

----- Original Message ----- 
From: "Mario Comas" <mario.comas@mari...>
To: <msp430@msp4...>
Sent: Friday, May 26, 2006 2:20 PM
Subject: Re: [msp430] Remote Programming


franco_bucafusco escribi
> Hi! Did anyone try to program the MSP Flash Memory (program) remotely
>  ? Could it be done by software ? In this last question I mean send
> program information to the MSP storing it into a ram or External Flash
> and then programming this code into MSP flash.
>
>
Hi Franco,

What do yo uunderstand fr remote programion... you are talking about
remote download ?
In this case we have a similar question... we should to update the
firmware via radio...  any idea or tool will be welcomed.

Mario Comas
amrsystems, sl
>
>
>
>
> .
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>











.


Yahoo! Groups Links

Chris,

Slightly off topic, but I spent quite a while trying without success
to get inductive power transfer working to charge batteries in a
sealed, waterproof product. Can you point me towards any reference
books, resources, or articles on how to do this? I measured the output
frequency of several inductive chargers using a coil (20-50KHz), but
wasn't able to get more than a milliamp or so transferred when I made
my own magnetics and power driver. Any suggestions appreciated.

Lloyd

--- In msp430@msp4..., Christopher Cole <cole@...> wrote:
> 
> Yes - in my current project, I send a new program via RF to the
MSP430....
>  The fun thing is that I am doing this using
inductive power
coupling, which supplies both the power and the RF data link.
Amazingly, the strong electromagnetic field does not appear to cause 
> problems when writing to flash...
> 
> Take care,
> -Chris
>

On Tue, May 30, 2006 at 12:45:00PM -0000, lslonim2 wrote:
> Slightly off topic, but I spent quite a while
trying without success
> to get inductive power transfer working to charge batteries in a
> sealed, waterproof product. Can you point me towards any reference
> books, resources, or articles on how to do this? I measured the output
> frequency of several inductive chargers using a coil (20-50KHz), but
> wasn't able to get more than a milliamp or so transferred when I made
> my own magnetics and power driver. Any suggestions appreciated.

Lloyd,

What was your coil geometry / separation?  What were your transmitter and
receiver coil inductances?  What was your drive current and voltage across
the transmitting coil?  What material was your sealed case made from?  What
is the power needed by the target circuit?

In my system, the power transmitter coil and receiver coil are coaxial
and coplanar, which helps... but since the receiver is in the body (medical
implant), the separation between the two coils is quite large.  My power amp
consumes about 20W, and with this I can couple about 50mW into the implant.

One good document worth reading is AN677 by Microchip.

For an excellent overview of a the EM propogation model:
Google for the terms erc report 69 inurl:pdf

Take care,
-Chris

-- 
 /> Christopher Cole                         <\                          
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