loop back of ethernet and PCIe on single evmk2h

thanks Raja
I got your point for PCIe. So tell me about ethernet, can't i test ethernet on evm without connecting to other device/PC. I want to test it standalone.

Hi,

I have tested PCIe PHY loopback on C6678 EVM board, the same initialization steps are enough for K2H device. Please take a look at below similar e2e links.

Thanks,

thanks Ganapathi.
as far as i understand this is phy loop back. I want I/O loop back is that possible?

Dear Basit,
For ethernet loopback , you can look into the following examples in latest MCSDK.

PA example (packet accelerator):
C:\ti\pdk_keystone2_3_01_04_07\packages\exampleProjects\PA_emacExample_K2HC66BiosExampleProject

You can change the "cpswLpbkMode" for loopback mode testing, internal, external etc.,
Int cpswLpbkMode = CPSW_LOOPBACK_INTERNAL;


NDK example (UDP packet loopback):
C:\ti\mcsdk_bios_3_01_04_07\examples\ndk\helloWorld\evmk2h

I/O loop back is not possible.

thanks Titus

what parameter should I change to enable loopback in this example:
NDK example (UDP packet loopback):
C:\ti\mcsdk_bios_3_01_04_07\examples\ndk\helloWorld\evmk2h

By default, the code works for loopback mode only.
Int cpswLpbkMode = CPSW_LOOPBACK_INTERNAL;

If you want to send packets to outside, you have to modify accordingly.
Ex:
Int cpswLpbkMode = CPSW_LOOPBACK_NONE;

thanks titus ,
But I don't see any parameter in
NDK example (UDP packet loopback):
C:\ti\mcsdk_bios_3_01_04_07\examples\ndk\helloWorld\evmk2h

with name cpswLpbkMode

This change is applicable in PA examples but not with NDK example.
Int cpswLpbkMode = CPSW_LOOPBACK_INTERNAL;

C:\ti\pdk_keystone2_3_01_04_07\packages\exampleProjects\PA_emacExample_K2HC66BiosExampleProject

so this example is by default in lop back mode or I have to change something.
NDK example (UDP packet loopback):
C:\ti\mcsdk_bios_3_01_04_07\examples\ndk\helloWorld\evmk2h