Subject:
|
Re: Scout vs RIS and reverse engineering and Byte Codes
|
Newsgroups:
|
lugnet.robotics
|
Date:
|
Fri, 26 Nov 1999 23:51:11 GMT
|
Viewed:
|
655 times
|
| |
|
|
The pollm command lets you look at memory from 0x40 to 0x440 (1 K).
The unused memory does not look like code. It looks like the system
attributes are available there--probably battery level and such. Also
variables must be there. We have 10 globals + 8 locals per 6 tasks that we
get to use. That's 58 variables x 2 bytes per variable=116 bytes. So thats
400 for code +116 for variable =516 bytes. Half way there.
The rom routines must use a lot of variable storage too. We also have timers
and counters.
There is also about 160 bytes of zeroes in the memory dump.
So that accounts for a lot of the RAM.
I can't test it right now, but I haven't seen anything downloaded to the
brick other than user programs. I don't think there is code or firmware in
the ram. It must all be in the ROM.
Mike
<webmake@bellsouth.net> wrote in message
news:383F0B32.F7BFD655@bellsouth.net...
>
> Mike Kory wrote:
> >
> > Does the Scout have firmware? I'm not aware of any being downloaded to > • the brick.
>
> The Scout must have control programming somewhere. What interests me is
> that out of 1K of RAM only about 400 bytes is available to hold a user
> program. Could the control program be held (preloaded) in the remaining
> 624 bytes of RAM?
>
> Robert Eddings
|
|
Message is in Reply To:
 | | Re: Scout vs RIS and reverse engineering and Byte Codes
|
| (...) The Scout must have control programming somewhere. What interests me is that out of 1K of RAM only about 400 bytes is available to hold a user program. Could the control program be held (preloaded) in the remaining 624 bytes of RAM? Robert (...) (25 years ago, 26-Nov-99, to lugnet.robotics)
|
6 Messages in This Thread:
 
 
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|
