AM2434: CPSW DUAL MAC Mode

Tomasz Krupski

Part Number: AM2434

Hi!

SDK version: mcu_plus_sdk_am243x_08_05_00_24

Board: AM243x-LP, E3

I would like to modify the lwip cpsw example to work with two static IPs on the r5_0_0 core. One IP1 over RGMII1 and a second one IP2 over RGMII2 interface.

I have already got one static IP after I've uncommented following macro in lwipcfg.h file

/* #define USE_DHCP 0 */

/* #define USE_AUTOIP 0 */

How can I add a second IP?

In the next stage of the project I need to add a second core: r5_0_1:

-J18 (RGMII1) connects to r5_0_0 with IP1,

-J19 (RGMII2) connects to r5_0_1 with IP2.

Is it possible? I case I am running out of memory I ordered the AM243x general purpose EVM with DDR4 but it is not delivered yet.

My application uses a standard Ethernet, so I am focusing on the cpsw exaples.

over 2 years ago

0 Nilabh Anand over 2 years ago

TI__Mastermind 45094 points

Hi Tomasz Krupski

Thanks for bringing this to our attention. I have created an internal request for it.

https://jira.itg.ti.com/browse/MCUSDK-10478

Follow the below work around:

In the file : mcu_plus_sdk_am243x_08_05_00_24\examples\networking\lwip\enet_lwip_cpsw\test.c

1. Use attached test.c, replacing the existing one /cfs-file/__key/communityserver-discussions-components-files/908/test.c

2. Rebuild the example and you should be able to see the ip address assigned to both interface.

=========================
Enabling clocks!
EnetAppUtils_reduceCoreMacAllocation: Reduced Mac Address Allocation for CoreId:1 From 4 To 2
Mdio_open:282
EnetPhy_bindDriver:1718
EnetPhy_bindDriver:1718
PHY 0 is alive
PHY 3 is alive
Host MAC address-0 : ac:1f:0f:84:0c:33
Host MAC address-1 : 70:ff:76:1e:63:ee
[LWIPIF_LWIP] NETIF INIT SUCCESS
[LWIPIF_LWIP] NETIF INIT SUCCESS
[LWIPIF_LWIP] Enet has been started successfully
status_callback==UP, local interface IP is 192.168.1.1
status_callback==UP, local interface IP is 192.168.1.2
UDP server listening on port 5001
Cpsw_handleLinkUp:1407

Let me know if this helps.

Nilabh A.

0 Tomasz Krupski over 2 years ago in reply to Nilabh Anand

Prodigy 200 points

Thanks, it worked well!

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AM2434: CPSW DUAL MAC Mode