read and send data from Ethernet

Hi,

Can you elaborate a bit on your requirement ?

How do I want to receive the command ?
from PC or other cores ?

We have NDK example which run client server, you can send/receive the UDP/TCP packets.

Could you please refer to the following NDK examples.
C:\ti\mcsdk_2_01_02_06\examples\ndk\helloWorld\evmc6678l
C:\ti\mcsdk_2_01_02_06\examples\ndk\client\evmc6678l

Hi Titus,

in my ideia I need to send to core 0 a "ok start" so my application begins and will run in 5 cores. The 5th core will send to fpga a big pakage..

Now here my problem I have tested all example prog and modified to send and receive data until now no response.

In visual C++ I made a small prog to send and receive data to another prog. I made two prog one server and one client and works fine. I beleive the problem is to setup. I seet IP and port " 1270.0.0.1 and 12000" for example.

in helloWorld\evmc6678l and client\evmc6678l I have changed the mac to my pc and (IP char *LocalIPAddr = "127.0.0.1";) and not find port number.

what do think about tthis?

Regards, Nivaldo

Hi titus
I saw that post but i believe is missing one file.

Hi Titus

this retrans.c file does not exist in my Ti dir. Can you send me?

Hi,
Thats available in the following post which I given already.

e2e.ti.com/.../1602980

Please read the complete post carefully and try to use the attached code in that project.

e2e.ti.com/.../1603723

Thanks Titus

now I got the file. It was my mistake I just was looking for in Ti dir and the attachment file just in 6678 folder.

I will use and give feedback about this project.

thank´s a lot.

Hi Titus
I have use the attached code, but not was running. So I made a new project based on source code based on attached code.
I can´t have result. You can see the following figure

In evm I´m using no boot mode.

In retrans.c I want to receive "OK START". I attached my projc.05_ethernet_ndk_cliente.rar

Regards,

Nivaldo

Hi Nivaldo,
Sounds good.
Just now I started for your post.
Thanks for your update.
You can also try to ping your IP address from other machines to confirm that IP address is good which you got for board.
Please let me know if any issues.

Hi Titus
I got a new problem here. IN my project i am using one fpga to control the process and i noticed that i can send data from fpga to dsp, but i am not receiving from dsp.
my code is based on socket command and my project based on ndk client.
To test my project i modify the code to receive dat from pc. I'm using packet sender.

I send commamd OK START DSP and the dsp receive e send the answer to my pc and my fpga. The wireshark give this problem when send to fpga.

The Ethernet frame check sequence incorrect. what can be?

Regards

Nivaldo

Hi Nivaldo,
Able to send the packet to PC and receive to DSP from PC right ?

Now instead of PC, you are involving the FPGA here right ?

If it so, then you start work with 2PCs and DSP.
Send the packet to PC1 and PC2 from DSP and vice versa.

Isolate the FPGA and work with 2 PCs and DSP for packet send/receive.

Hi Titus

Yes I can send from PC to DSP vice versa and the same way to FPGA.

Now I need to test this:
PC send to DSP one Message and the DSP send to FPGA another message.

When I send to FPGA from DSP cause error like wireshark fig above.

my idea is only work with dsp and FPGA. The pc is just to certificate if is going right.

I will try with two pcs and return if works

Hi Titus

I have tried like you said

I connect 2 PC and DSP. is running fine.

ex: PC 1 send msg to PC2 and DSP. DSP return to both pcs the msg sent.

Now when I plug the FPGA the only way that a can send message from FPGA to DSP, is the first time I need to send the BROADCAST from FPGA.

With this I can send msg to DSP using the IP defined.

Now My problem until now. I can´t receive from DSP to FPGA.

I am trying to use the example NDK client and hello world.