Bo Berglund wrote:
I have a development system running on a Raspberry Pi2B with fpc 3.0.0
and Lazarus 1.6RC2. It works just fine. :)
Today I am faced with a problem regarding compatibility between RPi1
and RPi2...
I have this Delphi program I wrote some years ago which is used to
show a text dialog on a TV for my mother-in-law. She is deaf and
bed-bound and to communicate with her I wrote the program so it could
display a huge text on an attached TV so she can read what one types
in.
Now the XP computer it was running on is dead and I have an old RPi1B
with 256M RAM, which I could put in its place.
I used Lazarus conversion tool to bring in the Delphi7 project to my
Pi2B and it compiled and ran fine. Success here!
So the question really is if I have to do something in the
configuration of the project to create an executable which will run on
the RPi1 hardware?
The fpc compiler I have is built using the OPT=-dFPC_ARMHF flag.
Will this cause executables compiled in Lazarus to only be working in
an RPi2??
I've seen no binary compatibility issues yet.
The one thing I would say is that I put a lot of time late last year
into getting an RPi+Raspbian working with a large LCD TV as an
HDMI-connected monitor for a colleague with poor sight, and found that
support of higher resolutions etc. was vastly improved with the RPi2.
The one thing that didn't work properly was the protocol that simulated
a remote control, but I've not checked that recently.
So in my opinion using an older RPi is a false economy here.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
--
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