CAN Port on Raspi Linux
lazarus / 64-FPC development

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HolzDübel12 · 2023-09-08 21:01

Hello,
I need to port a very old project written in Borland Turbo Pascal to
FreePascal.
It is clear to me almost everything I have to do, only with one topic
I am very unsure. The old project used a CAN interface which has to be
supported again.

In the first step I use a Raspberry Pi with a CAN shield. The drivers
are available under Linux and there are a lot of *.h files because CAN
works over SocketCAN.

I could now start to translate file by file into Pascal to access the
interface from FreePascal. This will be a lot of work and I can't
foresee how much there is.

The way I imagine to do it is to write a small program in C++ that
does the communication with the CAN interface.
Then I only have to address a few functions (InitCan, SendCan,
ReceiveCan) in FreePascal.

Do you think this is a good solution or do you know a better one? E.g.
a CAN driver under Linux which was written directly in Pascal.

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TRon · 2023-09-08 22:42

You might perhaps want to have a look at this thread.