CCS/TM4C1294NCPDT: MODBUS TCP Server implementation

Ernesto Couto

Prodigy 30 points

Part Number: TM4C1294NCPDT
Other Parts Discussed in Thread: EK-TM4C1294XL

Tool/software: Code Composer Studio

Hello,

Recently we have been in contact with the TI team in order to implement a Modbus TCP server.

We got from TI the firmware of a Modbus TCP to Modbus RTU bridge (tidc565.zip).

Now, as starting point we would like to port this firmware to run in a EK-TM4C1294XL that we own.

We are using CCS v9.2, but we are trying this IDE for the first time.

We have noticed that the source code has some dependencies like the lwIP.

Any advise how to proceed?

Later we would like to change the source code in order to just use the Modbus TCP and add the functionality of a server.

We will need also to add some other code specific to our application like a communication based in interrupts, reading some keys and writing to some leds.

Thanks for your help.

Ernesto Couto

over 6 years ago

0 Bob Crosby over 6 years ago

TI__Guru 72500 points

Sorry, I am not familiar with the tidc565.zip package. Can you direct me to where you got that from so that I may properly direct your questions.

LwIP is not supported directly by TI, but we do have an implementation for the TM4C1294 devices in the third party section of our TivaWare software.

0 Ernesto Couto over 6 years ago in reply to Bob Crosby

Prodigy 30 points

Hi,

I have downloaded the application code from www.ti.com/.../TIDA-00226

and then www.ti.com/.../export-control

Best regards,

0 Bob Crosby over 6 years ago in reply to Ernesto Couto

TI__Guru 72500 points

This TI design was built with an earlier version of TivaWare . You can make the project point to the new version of TivaWare by selecting the project (once you have imported it from the zip file) and right clicking. Select "Show Build Settings..." from the pop-up menu. Select "Build", then select the "Variables" tab. Click on "ORIGINAL_PROJECT_ROOT" and then "Edit". Change the TivaWare directory to version "2.1.4.178" as shown highlighted in the image below. Select "OK" and then "Apply and Close". Then rebuild the project.

0 Ernesto Couto over 5 years ago in reply to Bob Crosby

Prodigy 30 points

Hi,

Sorry for my late reply but I have been away.

Thanks for your explanation.

I have succeeded to compile the whole project and I will do further testing.

Best regards,

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CCS/TM4C1294NCPDT: MODBUS TCP Server implementation