AM2732: How to improve the transmission speed of 100 Mbps Ethernet.

Hi all,

Please answer this question.

Best Regards,

Ito

Hi all,

Please answer this question.

Best Regards,

Ito

HI K.Z,
What is the packet rate that you are sending out from AM2732 to external PC? I mean how many packets per sec? Is it a steady/flat rate?

Please elaborate more on that-

K.Z said:

My customer has created a project that always sends UDP data externally with the sample enet_cpsw_udpclient snd_buf as the default maximum value,
which resulted in an operation where 1024 bytes of data was delivered approximately 540 times.

With regards,
Pradeep

Hi Pradeep,

Thnak you or your reply.

At the time of the previous question, I was using the following sample project to perform continuous UDP transmission
: enet_cpsw_udpclient_am273x-evm_r5fss0-0_freertos_ti-arm-clang.

I determined that the frequency of transmission was reduced due to the waiting time for UDP reception from the sending counterpart.
By modifying the project to eliminate the UDP reception processing from the sending counterpart and to only perform transmission, as well as increasing the packet size as much as possible, I was able to confirm an output of about 69 Mbit/sec.

→ Is this value reasonable for a 100Mbps Ethernet?

PRADEEP HN said:

What is the packet rate that you are sending out from AM2732 to external PC? I mean how many packets per sec? Is it a steady/flat rate?

Currently, I understand that I am only using lwip_sendto for data transmission. From where can I check the packet rate settings?

Best Regards,

Ito

HI Ito,

K.Z said:

→ Is this value reasonable for a 100Mbps Ethernet?

It depends on the packet rate? What is the packet rate and lenght of packet that that customer is looking for?

With better optimizing the configuration, we can reach nearly 100 mpbs UDP. In order to mention that I need to know some information like above one.

With regards,
Pradeep

Hi radeep,

Thank you for your reply.

Customers does not know how to check packet rates.

Please tell me how.

Best regards,

Ito

Hi Pradeep,

K.Z said:

Currently, I understand that I am only using lwip_sendto for data transmission. From where can I check the packet rate settings?

Please answer this one.

Best Regards,

Ito

Hi Pradeep,

1472 bytes are transmitted per UDP transmission, which is approximately 5850 packets per second.
Therefore, 1472*5850*8 ≈ 69 Mbit/sec (69 Mbps).

Best Regards,

Ito

Hi Pradeep,

Could you please provide an answer?
Customers are waiting.

Best Regards,

Ito