CCS/LAUNCHXL-F28377S: SCI_Echoback example problems

Qingxuan Ma

Part Number: LAUNCHXL-F28377S
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

Hello,

I happen to have 2 versions of control suite on my laptop. One is v3.3.6 released on October 16, 2015. Another one is v3.4.9 released on March 28, 2018

The sci echoback example from v3.3.6 works fine, and hyper terminal recieves data as expected.

When I import the sci echoback project from v3.4.9 control suite, things work out differently. The hyper terminal does not show anything. Not even the "Hello world!" The project both come from device_support\F2837xS\v170\F2837xS_examples_Cpu1\sci_echoback. The only difference is one from an older version of control suite, the other from a newer version of control suite.

I tried to receive data by using Putty instead of hyper terminal. The things work out the same. Project from older version of control suite works, yet the one from newer version does not.

I also used another laptop installed with v3.4.9 control suite. Yet the sci echoback project imported from it just does not work. It is weird.

Could you please help me figure out the problem? Thanks!

sci_echoback from V3_4_9.zip

sci_echoback from V3_3_6.zip

over 7 years ago

0 Qingxuan Ma over 7 years ago

Prodigy 150 points

Hello, could anyone please help me? Thanks!

0 Qingxuan Ma over 6 years ago

Prodigy 150 points

Hello, anyone here? Thanks!

0 MEGHANA MANAVAZHI over 6 years ago in reply to Qingxuan Ma

TI__Genius 10345 points

hi ,

Can you take a look at the example in the latest C2000ware ?

Regards.

0 Qingxuan Ma over 6 years ago in reply to MEGHANA MANAVAZHI

Prodigy 150 points

Hello,
I tried the example from C2000ware but it is still not working. Neither on Hyper terminal nor on putty. But I do notice that every time when I type somethingin putty or hyper terminal window, the D8 LED on launchpad would blink. This also happens when I use the example from control suite.

0 MEGHANA MANAVAZHI over 6 years ago in reply to Qingxuan Ma

TI__Genius 10345 points

hi ,

Could you check if there are other expected version of compilers for the new projects ?
Usually the example are checked n controlcard. Since this is for launcpad we may need to use some predefines for the projects?

Can you check
C2000Ware\device_support\f2837xs\examples\cpu1\launchxl_f28377s\cpu01?

This also uses sci.

Regards.

0 Qingxuan Ma over 6 years ago in reply to MEGHANA MANAVAZHI

Prodigy 150 points

Sadly, the example is still not working.........I am not sure what problem is. Since I have already tried on two of my laptops, I may need to check on someone else's computor or change a launchpad. If I have any progress, I would put my feedback here. Right now, the problem is still not solved.

0 MEGHANA MANAVAZHI over 6 years ago in reply to Qingxuan Ma

TI__Genius 10345 points

hi ,

The example should run on the launchpad . If you are seeing issues please try checking the connection or as you said I suggest to also check the board .

Also If using a Launchpad, check if a pre-define NAME called "_LAUNCHXL_F28377S" is required to setup the proper device clocking.

Regards.

0 Rajaravi Krishna Katta over 6 years ago in reply to MEGHANA MANAVAZHI

TI__Expert 6795 points

Hi,

I have downloaded the examples zip files attached but couldn't view any source files. Please make sure the source files gets added in the zip file in future.

On top of what Meghana suggested, please make sure you are configuring GPIO84/85 instead of GPIO22/23 in the sci echo back example. The SCI Tx/Rx are connected to GPIO84/85 incase of launch pad.

Thanks,
Katta

C2000™︎ microcontrollers

C2000 microcontrollers forum

CCS/LAUNCHXL-F28377S: SCI_Echoback example problems