F28069 Experimental Kit versus the Launchpad

Gautam,

OK I bought the Launchpad. But I am having enormous problems getting the Sci EchoBack project to run. It compiles and seems to run OK, but I am not getting any messages on the serial package I have on my CPU (to read the messages sent from the Launchpad.

I can read the messages sent by the Demo program just fine so I know the problem is in the echoback project

Why doesn't this project have a ReadMe so people won't have to stumble around like this? All the Launchpad  has for serial it seems is the one demo project, and that one  is kind of bogus, since it outputs to STDOUT using printf, not the serial SW libraries, so it is hardly a demo of the latter. That project also only shows serial one way, from the Launchpad to the CPU, and most of us need two way communications, so the project is basically useless.

The "loopback" projects don't work, is there a pin or two that needs to be jumpered or is the SW setting alone adequate for loopback? Again that kind of data should be encapsulated in a ReadMe and included with the project.

Looking at the SW I see some of the routines are TBD, like the sci init, which is kind of outrageous for released code, that people paid for.

Could you send me some kind of writeup on the Sci Echoback project so I can quit wasting time? Maybe there is, or should be, one, but the (possible?) location is not listed in the non-existent Readme.

Also are there any existing Demo Projects on the Can?

Regards,

Nolan

Hi Nolan,

You seem to be quite frustrated... lets have a quick look at your issues.

Nolan Snell said:

OK I bought the Launchpad. But I am having enormous problems getting the Sci EchoBack project to run. It compiles and seems to run OK, but I am not getting any messages on the serial package I have on my CPU (to read the messages sent from the Launchpad.

I hope you are using example project from this folder:

C:\ti\controlSUITE\device_support\f2806x\v141\F2806x_examples_ccsv5\sci_echoback

Secondly, the baud rate for this example is 9600 and not 115200bps.

Nolan Snell said:

I can read the messages sent by the Demo program just fine so I know the problem is in the echoback project

Great! which means your COM has been detected and is working fine.

Nolan Snell said:

Why doesn't this project have a ReadMe so people won't have to stumble around like this? All the Launchpad  has for serial it seems is the one demo project, and that one  is kind of bogus, since it outputs to STDOUT using printf, not the serial SW libraries, so it is hardly a demo of the latter. That project also only shows serial one way, from the Launchpad to the CPU, and most of us need two way communications, so the project is basically useless.

True, but that's just a demo project. As for 2-way communication SCI_loopback_interrupt example project can be referred.

Nolan Snell said:

The "loopback" projects don't work, is there a pin or two that needs to be jumpered or is the SW setting alone adequate for loopback? Again that kind of data should be encapsulated in a ReadMe and included with the project.

Externally you need to connect 2 jumpers from RXA-TXB and RXB-TXA.

Nolan Snell said:

Could you send me some kind of writeup on the Sci Echoback project so I can quit wasting time? Maybe there is, or should be, one, but the (possible?) location is not listed in the non-existent Readme.

There are multiple workshop material that you can refer: (Even though for different board but for same controller)

Nolan Snell said:

Also are there any existing Demo Projects on the Can?

Refer this project:

C:\ti\controlSUITE\device_support\f2806x\v141\F2806x_examples_ccsv5\ecan_back2back

Regards,

Gautam

Yes I was getting pretty frustrated. But thanks a lot Gautam.