[solved] modbus_phy_layer_rtu.c Error#44 ...

zzeroo · Joined: 17 Jun 2013 Posts: 18

Hi,

I try to compile the Modbus Slave example ex_modbus_slave.c from the Examples dir. But everytime I run into the error "modbus_phy_layer_rtu.c:25:9: Error#44 Internal Error - Contact CCS PPUSE "

Here is my code so far:

Ttelmah · Joined: 11 Mar 2010 Posts: 19520

I just compiled the file with 4.140, 141, 5.010, and 5.013 and it compiled fine in each.

Looks as if you are compiling in something like MPLAB?. It looks as if the fault is with the way you are trying to compile, rather than with the CCS files. Try being 'simple', and just calling CCSC with your sourcefile to compile, without all the options. If it then works, it is a case of working out which of these is causing the problem.

Several of your options are repeated, and some like +T, make compilation take an age - unless you need this don't use it. +CC is normally only used when you are linking.

Just the file 'as is', compiles fine, unless your copy of the physical layer has been modified.

Best Wishes

zzeroo · Joined: 17 Jun 2013 Posts: 18

No, I created a new empty project and compile without any luck

Ttelmah · Joined: 11 Mar 2010 Posts: 19520

Try reloading the original files (if you have the downloaded installer?).
Make sure the project is picking up the correct include file. They have a habit of 'finding' other versions sometimes.

Best Wishes

Ttelmah · Joined: 11 Mar 2010 Posts: 19520

I notice another poster was having the same problem. However for him it worked if he went back to a V4 version. As for me, PCM programmer found it compiled for him:

<http://www.ccsinfo.com/forum/viewtopic.php?t=50987>

It must be something machine specific. RAM amount, layout of the directories (try letting CCS install into it's default locations), etc. etc..

Another poster on an older version also had this, and a full re-install fixed it:

<www.ccsinfo.com/forum/viewtopic.php?t=50283>

Try renaming your project, using underscore instead of hyphen in the filename. Hyphen can cause parsing problems, depending on what language CCS is actually written in. It is not a legitimate filename character in quite a few languages.

Best Wishes

zzeroo · Joined: 17 Jun 2013 Posts: 18

Uff

andWTF!

Problem solved, thank you Ttelmah. But it must further investigate how and why this was happen.

I deleted the whole PICC directory. After that I run the setup again and let him install to the default location. Then I replaced the hyphen in the filename to underscores. Lastly I have deinstalled and reinstalled the MPLABX toolchain plugin -> and it runs! It compiles without any error now. (kind of black magic found?)

Ttelmah · Joined: 11 Mar 2010 Posts: 19520

If you find exactly what item triggers it, post back, since then future people with the problem can be helped.

I'd guess it is probably one thing in the install.
I'm sneakily suspicious of the hyphen in the install directory name. The posters in the other two threads didn't give the directory names they were using when the problem happened. The MODBUS example does a lot of scripting constructs in the compile, and these are using something closer to perhaps a scripting language, than the actual 'compilation' itself. Now several scripting languages (Python for example), won't allow hyphen's in the file names. If you notice, hyphen is used as the 'marker' for the commands in the compile line itself, so I'd be not at all surprised if the compiler has problems triggered when this is in the filename, though not until certain other things are done....
Hyphens are also 'often not recommended' in Unix environments, where some of the shells treat it as a 'shorthand' for stdin/stdout, and a leading hyphen implies a command character following.

My 'best guess'....

Best Wishes

zzeroo · Joined: 17 Jun 2013 Posts: 18

Oh man I'm so sorry. I had this morning not included the modbus.c file Embarassed

and because that no error.

I've tried many different workstation this day, completely new installed CCS5.012 and CCS4.104 on a project without hyphens, no luck.

temtronic · Posted: Thu Oct 31, 2013 7:22 am

comment..
I don't use modbus, never looked at the drivers, can't test but....

is .1ms a valid option for TICK ?
or...
do you have a ISR for the TIMER ?

just thought I'd throw 'something' for you to consider.

hth
jay

Ttelmah · Joined: 11 Mar 2010 Posts: 19520

The silly thing is it compiles.

You don't need anything but the file posted to test (drivers come with the compiler). I have:

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

Yes, I also got it to compile with the changes as posted. But I don't see
any PIC listed in the drop-down box at the top of the IDE. I don't use
the CCS IDE, but maybe that's significant.

Try the following test:

You're modifying the source files. What happens if you:

1. Re-install vs. 5.012 of the CCS compiler.
2. Make a new project in the Examples directory and call it
Ex_modbus_slave.
3. Select Ex_modbus_slave.c as the main file in the project.
4. Don't enable Multiple Compilation Units in the CCS IDE.
5. Select 18F6722 as the PIC
6. Don't edit any files.

and then compile the project. Does it now compile OK ?

I tried that under MPLAB vs. 8.91 and it compiles with no errors.
It has a couple warnings about interrupts disabled to prevent re-entrancy
but that's not a error. It compiles OK.

Ttelmah · Joined: 11 Mar 2010 Posts: 19520

I'm just having a little 'sneaking possibility' about national settings.

I think the code it calculating the timer tick value where it fails. Reading the clock value (possibly as a string), and then calculating the settings for the timer.
I was wondering if anyone with ',' as their decimal separator had tried this particular example?.....

Yes - this is the problem!.....

Have just switched my system location to France, rebooted, tried the compile, and I'm getting the exact error.

I think it is parsing something into a string, and then probably looking for the decimal in the calculation, and failing with the ','......

If you can accept the different number formats, switch to US English to get it working, and report the problem to CCS.

Aaargh......

Best Wishes

jeremiah · Joined: 20 Jul 2010 Posts: 1349

zzeroo · Joined: 17 Jun 2013 Posts: 18

Oh man, I would have also come to it themselves.

Thank you Ttelmah, the tip with the separator was it. For all who fall also into that trap here a small "click-path" to change the decimal separator on a German Windows 7 system.

1. Start
2. input "Sprache" (language)
3. click "Weitere Einstellungen" (advanced settings)
4. insert a DOT (.) instead of the (,)

With a (.) the code complies fine, thank you all!

Ttelmah · Joined: 11 Mar 2010 Posts: 19520

Glad it is working....

A 'caveat'. I'd change the thousands separator to a comma. Having the decimal separator the same character as the thousands separator is bound to cause problems somewhere!.....

It is interesting, because internally, 'C' always uses '.' My guess is that they are using one of the API functions to do part of the calculation, with the 'national' settings enabled, then switch to handling the result themselves, without any national changes. Result, complete confusion.....

Best Wishes