TMS320F28386D: CM debug error

Thank you for your response.

Thanks to your help, I set the route, but the error is still the same. According to your answer, even if these errors pop up, the CM core loads properly?

In CPU1, the ethernet_c28x_config project is ram boot, and in CM, the enet_lwip_udp project is flash boot.

Attached is the video. Does the flash boot appear to be working properly on the CM core?

Thank you in advance for your help.

Hello,

son juhwan said:

Does the flash boot appear to be working properly on the CM core?

It appears so, I don't see the last message in the console fully, but it doesn't look like an error. Are you able to get the expected results?

No. I tried the ping test, but it doesn't respond.

But I think it's because I use a different phy chip apart from booting. Is the enet_lwip_udp example a program written based on the DP83822 chip? I'm using a lan8720 chip, is there anything I need to change?

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1232103/tms320f28384s-how-to-use-lwip-network-communication-demo-ethernet_-c28x_-config-to-change-to-rmii-interface/4656249?tisearch=e2e-sitesearch&keymatch=lan8720#4656249

I changed the gpio configuration for rmii like the text in the link. Apart from the gpio configuration, if there is anything I need to change regarding phy, I would appreciate it if you could let me know.

Thank you.

Hi Son,

Could you take a look at this? https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1282149/tms320f28388d-getting-rmii-to-work/4875831#4875831

Best Regards,

Ben Collier

Thank you for your reply.

I've read all the questions related to ethernet in E2E, but all the cases that were resolved were TI PHY products such as DP83822 or DP83640.

Can't I use a LAN8720 phy chip in this example? I think I just need to know this one.

Thank you in advance for your response.

I am not really familiar with the LAN8720, so I will need to ask a coworker. 

Hi Son,

Benjamin looped me in, an Applications Engineer for the Ethernet team in TI. The LAN8720 is a Microchip device, which I can't give specific advice on. Some general advice I can suggest is checking if the SDK you are using has the LAN8720 driver included.

These can be found in the:

SDK-INSTALL-DIR/<Linux-Version>/drivers/net/phy folder.

Are you using your own custom board or one that we provided? Forgive me but I don't think I understand the ethernet issue here clearly. Is it a problem between the MAC interface connection between the MCU and PHY?

Regards,

Alvaro