Query for serial message

Hi Ken,

I think this is the problem with baudrate or uart clock frequency?

What is the oscilator frequency you are feeding to the device?

What frequency you are feeding to UART module?

Regards

AnilKumar

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Do you mean sw register setttings or hw oscilator?

There is no code in nand flash. In that case, "CCC" message show after booting.

It means, it can not set baudrate settings with software.

Can you explain, which HW part checking needed in detail?

Hi Ken,

In case of DM814X EVM input oscillator frequency is 20MHz, I am asking what is the input frequency for your custom board?

Are you sure you are setting 115200 baurate in your "Tera Term" for UART console.

Regards

AnilKumar

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I can see the "CCC" message with TI814x EVM board, "###" message with new board.

It is sure, 115200 baurate settings is correct.

Which TI814x CPU pin is needed 20Mhz? Would you say, pin number?

We use 32.768khz oscilator for TI814x CPU.

Thanks.

We found problem in oscilator.

It  fixed chaing oscilator.

Hi Ken,

You can look at DM814X TRM http://www.ti.com/lit/ug/sprugz8a/sprugz8a.pdf (section "2.3.2 Clock Structure")

OSC0 is feeding 20MHz.

Regards

AnilKumar

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