CCS/TMS320C6654: Unable to ping TMS320C6654

Ramgopal Divakar

Part Number: TMS320C6654

Tool/software: Code Composer Studio

We have an evaluation board with C6657 and we are able to load the code via emulator and run pings.

Our board has C6654 and when we use your older platform MCSDK we are able to ping the DSP. We are trying to now use your newer processor SDK and version 8.3 and we are unable to ping the DSP. Our PHY addressis 0x8 in our hardware and we modified the code. Now it is able to detect the link bit but the code is freezing. We put a debug to detect a good link status via the MDC/MDIO registers are we are able to see a good physical link. When the software was set to access a PHY address of 0x24 as in the eval board, it used to come back with no link but keep trying to send data over the Ethernet port but there were no packets sent.

Note - With the older MCSDK, we are able to ping the DSP so our hardware seems to be okay.

What must we modify in the eval software to access the C6654 instead of C6657.

Thanks,

Divakar

over 6 years ago

0 Ramgopal Divakar over 6 years ago

Expert 1300 points

I meant PHY address of 24 and not 0x24 above

0 Yordan Kovachev over 6 years ago in reply to Ramgopal Divakar

TI__Guru**** 161600 points

Hi,

First of all, you download the Processor SDK RTOS for TMS320C6654 devices, right? Here is the link:

Second, which eth example are you using?

Best Regards,
Yordan

0 Ramgopal Divakar over 6 years ago in reply to Yordan Kovachev

Expert 1300 points

Hey Yordan,

we used this:

http://software-dl.ti.com/processor-sdk-rtos/esd/C665x/05_03_00_07/index_FDS.html

sdk and ccs for c665x, covering c6654.

And for the Ethernet

demo from pdk examples ndk/helloworld

Is that ok?

Thanks,

Divakar

0 Yordan Kovachev over 6 years ago in reply to Ramgopal Divakar

TI__Guru**** 161600 points

Hi,

Yes, this should work. Check your board library file located in packages/ti/board/src/evmC6657. See if you correctly configure your phy.

Also see packages/ti/platform/evmc6657/platform_lib/src.

Best Regards,
Yordan

0 Min Shan over 6 years ago in reply to Yordan Kovachev

Prodigy 90 points

Thank you Yordan

We will try what you suggested

Regards

Min

0 Ramgopal Divakar over 6 years ago in reply to Min Shan

Expert 1300 points

Hey Yordan,

it works now. We weren't waiting long enough. It takes about 22 to 25 seconds after the code has started for the pings to begin. This is true with our hardware and the EVM.

Question - Does the EVM rely on pin 61 of the PHY 88E1112 PHY_INT# which connects from PHY to the FPGA? Not sure what happens after. This signal indicates the PHY is initialized.

We noticed MDIO_LINKINTRAW gets set in the EVM but not ours. It does get set if we reset the PHY after the code starts. Not sure if this is something important.

Thanks,

Divakar

0 Yordan Kovachev over 5 years ago in reply to Ramgopal Divakar

TI__Guru**** 161600 points

Thanks for the update and sharing your solution with the community.
I am closing this thread for now.

Best Regards,
Yordan

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CCS/TMS320C6654: Unable to ping TMS320C6654