TRX-2: TRX-2 (maybe TRX-1) cross platform API.

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strcpy

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NOTE: this is not a "ANY SOFTWARE FOR TRX?" post.


I took an hour this morning to write a C header-only TRX API. (Meaning all you have to do is #include "libtrx.h"). Some of the RCIP documentation is wrong, so I had to figure out little things.

It needs some work, and the USB can get funky you have to reset. This will be fixed eventually. Like I said, this was an hour or so. I figure I'll finish it up this upcoming weekend.

Code: https://gist.github.com/ellzey/57f5943fca14263e80bb50d92117ec0d#file-libtrx-h
Usage: https://gist.github.com/ellzey/57f5943fca14263e80bb50d92117ec0d#file-example_usage-c

All you should need is libusb-1.0 and a compiler.

gcc example_usage.c -o example_usage -lusb-1.0

I *THINK* this is the first non-whistler display, and if so, HAVE FUN!
 
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ecarvalho

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can you create a java app based on this? would be cool


Sent from my iPhone using Tapatalk Pro
 

JSTARS03

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When I try and Compile it I get the following error:
\trx.c In function 'int main(int, char**)':
\trx.c [Error] 'printf' was not declared in this scope

from Line 55
printf("line1: %.*s\n", 16, led_resp.line1);

Thanks
JSTARS
 

strcpy

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What compiler, OS, and compile flags are you using? It isn't compatible with c99, heck; even ansi standards, without printf.

The fact it says just "main(char *)" instead of "main(int argc, char ** argv, char ** envp)" is throwing up red flags.
 

jdolina

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What would you want the java program to do? I know someone mentioned logging and I have debated on doing something like that.
 

JSTARS03

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Windows

What compiler, OS, and compile flags are you using? It isn't compatible with c99, heck; even ansi standards, without printf.

The fact it says just "main(char *)" instead of "main(int argc, char ** argv, char ** envp)" is throwing up red flags.
Dev-C++ Compiler on a Windows 7 64 Bit Machine
I used all the default flags and settings for compiling for Windows

Thanks
JSTARS
 

DonS

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When I try and Compile it I get the following error:
\trx.c In function 'int main(int, char**)':
\trx.c [Error] 'printf' was not declared in this scope

from Line 55
printf("line1: %.*s\n", 16, led_resp.line1);

Thanks
JSTARS
Try adding:
#include <stdio.h>

example_usage.c doesn't #include stdio.h, but references printf().
 

JSTARS03

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libusb

Thank you but now it gives me a few "undefined reference to `libusb..." errors
I downloaded libusb 1.0.21 and updated the #include <libusb-1.0.21/libusb.h>
but I think this maybe out of my primitive C++ skill level.

.c:(.text+0x178): undefined reference to `libusb_bulk_transfer@24'

Thanks

JSTARS
 

strcpy

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Oh, and for all those having issues; I have them too.

Take OSX for example, somewhere around El Capitano apple created their own FTDI/CDC driver that doesn't work. It then takes an exclusive lock on the USB interface. In this case no further operations can happen.

Though I'm speaking CDC, I have to (initially) remove the cable, load the FTDI driver, insert the cable, then unload the FTDI driver before it functions.

So, if anyone is interested, I can just pass on a statically linked binary (of the terminal program I posted a video of above) for windows, macos, and linux.
 

strcpy

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I have to be out on the east coast on a business trip for a few weeks. So I went and purchased a TRX-1 so I could continue development on the road.

Here is a slightly short video of everything working on the TRX-1.

http://l.cfg.sh/NO7wmw

I have another video uploading that explains, in detail, the steps for running your libtrx code on MacOS (up to sierra), FreeBSD, and Ubuntu 14.04 (ARM).

I should probably push up the updated software at some point :)
 
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