CCS/EK-TM4C1294XL: EK-TM4C1294XL launchpad Ethernet communication Receive speed is very slow.

Amr Mohamed

Part Number: EK-TM4C1294XL

Tool/software: Code Composer Studio

I wrote a software code to communicate 2 EK-TM4C1294XL launchpad using Ethernet; I configured the Ethernet speed to 100Mbps and full duplex communication; when I measured the transmission speed I found it about 87Mbps for transmitting 1500 bytes of data, but the receiving speed is about 16Mbps up to 20Mbps and down to 10Mbps.

In Ethernet communication, Is this receiving speed normal?

over 5 years ago

0 Charles Tsai over 5 years ago

TI__Guru**** 184496 points

Hi,

Can you elaborate what software code you created? Is it based off the LwIP TCP/IP stack? Your transmission speed is done with respect to which host and the receiving speed is done with respect to which host? Can you use the wireshark to diagnose?

0 Charles Tsai over 5 years ago in reply to Charles Tsai

TI__Guru**** 184496 points

Hi,

Do you have any update?

0 Amr Mohamed over 5 years ago in reply to Charles Tsai

Intellectual 480 points

Hi,

It was an Ethernet device driver to connect 2 MCUs without any TCP/IP stack overhead.

There was a software issue in the receiving code, after I solved it; the problem solved.

Regards,

Amr

Arm-based microcontrollers

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CCS/EK-TM4C1294XL: EK-TM4C1294XL launchpad Ethernet communication Receive speed is very slow.