AM263P4: Ethernet layer2 CPSW Switch -Ethernet

Nirali Nallapuri

Part Number: AM263P4

Tool/software:

Recently, I have tried testing Enet layer2 CPSW Switch example software in the launch pad of AM263P4, I was able to see the receive Packets and transmit packets as response in Wire shark log as shown in Reference manual , but i'm unable to understand software flow , could you please refer to any document for easy understanding of code flow.

so that, i can modify the software to perform independent transmission periodically etc.

10 months ago

0 Shaunak Deshpande 10 months ago

TI__Mastermind 23312 points

Hi,

I'd recommend starting with understanding the CPSW Hardware:

https://dev.ti.com/tirex/explore/node?node=A__AFxlDS0QCAOGl34gfWRRpQ__AM26X-ACADEMY__t0CaxbG__LATEST

Then,

To understand the Ethernet driver (enet-lld) which works over CPSW, refer:

https://software-dl.ti.com/mcu-plus-sdk/esd/AM263PX/latest/exports/docs/api_guide_am263px/ENET_LLD.html

Understand the application flow here:

https://software-dl.ti.com/mcu-plus-sdk/esd/AM263PX/latest/exports/docs/api_guide_am263px/enetlld_top.html#enetlld_api_overview

Firstly, the pinmux and CPSW Hardware is configured through the example.syscfg file. Then, the auto-generated code takes care of basic CPSW Init. To get started with your application, you can refer any ethernet application to understand the initialisation flow until we hit the main application.

For example, for the enet_cpsw_layer2 example, you can follow the application flow until: EnetApp_showMenu, create seperate tasks for Tx and Rx based on your application requirement.

Further, for debugging, you can follow: https://dev.ti.com/tirex/explore/node?node=A__AaBu6ik6ZY8v2032wjLx6Q__AM26X-ACADEMY__t0CaxbG__LATEST

Regards,
Shaunak

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AM263P4: Ethernet layer2 CPSW Switch -Ethernet