Problem in F28027

koneru kishore

Other Parts Discussed in Thread: TMS320F28027

Can Any One Help Me that We are New People TO Start Work on the TI Controllers.Actually We made a Circuit With the TMS320F28027 with JTAG. and We are using the using CCS4 Compiler. When we Complie And Load or Debug the Code into the Controller it will be loading but Controller is not Working and we are using the 60MHZ Crystal for Our Operation. and We are using the Example Programs of f2802x. Can any one help me in this regards

over 14 years ago

0 BrandonAzbell over 14 years ago

TI__Guru 64630 points

Would you please provide more information about what you are observing?

Do you have an evaluation kit of the TMS320F28027 that you have run examples on and have observed it successfully running? This would help provide a comparison to your own target hardware so you can start isolating the problem.

0 Nikola Djordjevic over 14 years ago in reply to BrandonAzbell

Prodigy 220 points

Hello!

I have a problem with Piccolo F28027. I tried to adjust crystal oscilator and the processor has gone in limp mode...

CCS 3.3 displayed message (from the picture)...

So, this message is present whenever I try to flash a program on processor F28027...

I tried to flash a program on another F28027 and It works OK...

Do you know how to solve this problem?

Regards

Nikola.

0 Manoj Santha Mohan over 14 years ago in reply to Nikola Djordjevic

TI__Guru 55700 points

Nikola,

Are you using internal oscillator (or) external oscillator? I am surprised you are even able to connect to the device.

Regards,

Manoj

0 Nikola Djordjevic over 14 years ago in reply to Manoj Santha Mohan

Prodigy 220 points

Primarily I have used internal oscillator 1 and 2... Then I tried adjust external oscillator. I flashed a program and started. That was OK, program has worked. When I HALTED the program and again tried to RUN (with adjusted external oscillator...), program was HALTED automatically...

Then I tried all from the beginning... I compiled the program and when I tried to flash a program, the problem appeared (picture from my previous post...)

Regards,

Nikola

0 Manoj Santha Mohan over 14 years ago in reply to Nikola Djordjevic

TI__Guru 55700 points

Nikola,

You SHOULD never halt the execution of flash erase / program / verify operation, this more often than not depletes the flash and makes the flash unusable. Did you try depletion recovery option provided in plugin

Regards,

Manoj

0 Manoj Santha Mohan over 14 years ago in reply to Manoj Santha Mohan

TI__Guru 55700 points

I believe you are able to connect to the device successfully. Also, enable CLKOUT and check the CLKOUT frequency.

Regards,

Manoj

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Problem in F28027