28035 SCI echoback example not work

Yoshihiro Yamasaki

Prodigy 25 points

Other Parts Discussed in Thread: TMDSCNCD28035, CONTROLSUITE

Hi,

I'm using Example_2803xSci_Echoback.

I could get messages from DSP, but DSP didn't get back messages to me when I sent to DSP.

I checked register SCIRXBUF=0x402F.

I can see parity error.

I think I configured correctly, terminal parity none and DSP configuration below.

SciaRegs.SCICCR.all =0x0007; // 1 stop bit, No loopback
// No parity,8 char bits,

What's wrong?

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My evaluation emvironment

　I am using TI Docking Station (USB) with F28035.

　CCS5 Terminal.

Docking Station J9 populated.

Docking Station J8 not populated.

Control Card SW1 OFF

Control Card TMDSCNCD28035 R1.2

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Thanks for your help,

Yoshi

over 11 years ago

0 Gautam Iyer over 11 years ago

Guru 192875 points

Hi Yoshi-san,

The example found here works very fine:

C:\ti\controlSUITE\device_support\f2803x\v127\DSP2803x_examples_ccsv5\sci_echoback

Check the contents of SCIRXEMU register. Also, try using hyperterminal that can be found here:

http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/336921/1175902.aspx

Regards,

Gautam

0 Yoshihiro Yamasaki over 11 years ago in reply to Gautam Iyer

Prodigy 25 points

Gautam,

Thank you for your reply.

I succeeded SCI communication!

I went to the link and I used hyperterminal.

http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/336921/1175902.aspx

I copied hypertrm.dll in C:\Windows\System32 and booted hyperterminal.

I couldn't open SCI_96.ht file, but I setuped it by myself (bits per second, parity and so on).

I also succeeded sci_echoback by using CCS terminal after I used hyperterminal.

【View】→【Other...】→【Terminal】→【Terminal】

I didn't understand why I didn't work sample code.

Is it important [hypertrm.dll ] or hyperterminal?

I want to know how it works.

Thank you very much,

Yoshi

0 Gautam Iyer over 11 years ago in reply to Yoshihiro Yamasaki

Guru 192875 points

Yoshihiro Yamasaki said:

I didn't understand why I didn't work sample code.

Is it important [hypertrm.dll ] or hyperterminal?

I want to know how it works.

This dll file is required for hyperterminal functioning only and has nothing to do with CCS Terminal program. I guess you might be missing some step :)

Anyways, that's great that your issue has been resolved. Please close the thread.

Goodluck & Regards,

Gautam

C2000™︎ microcontrollers

C2000 microcontrollers forum

28035 SCI echoback example not work