Thread: Serial RS232 + OpenGL (multithread+Serial Comm)

Originally Posted by manatttta

1 . How should I call the OpenGL frontend and send it the data? (create another process? How do I share the variables between 2 executables?)

There are a number of IPC mechanisms in Linux. I would probably use sockets here. Make the data acquisition software the server, and make the front end the client.

2 . How do I send an entire string at once to the sensor? (I can't send it byte by byte since the sensor can't distinguish the order of them..)

Like Quzah said, serial data has always been in order. You can write your own buffering function that takes a whole string instead of a char, and sends it byte by byte for you. If that's in your sending thread, then you can process other data asynchronously while you're busy sending that string.

PS - if anyone wants I'll be glad to send my code, it's about 200 lines..

I don't see any need for it right now, since your problems are more general, but if it needs to be posted, just post it in this thread (remember to use code tags!).

Thanks a lot for your answers! I'll try to implement sockets, and check if it works sending byte-by-byte.