PROCESSOR-SDK-AM64X: Access to PRU Ethernet/IP and CPSW swicth from same R5-0

Hi christophe vieville,

Thanks for your query.

christophe vieville said:

configure the access to CPSW (ICSSG0)

ICSSG0/CPSW will be used for Ethernet connection (100M or 1G)?

What is traffic speed expected here?

christophe vieville said:

From our code running in R5-0 core, we need to forward data from Ethernet/IP fieldbus to other device connected on a second network connected on CPSW.

Ethernet and Ethernet/IP packets will be consumed by single R5F core ?

or forwarded some other core for processing?

Regards

Ashwani

Ashwani Goel said:

ICSSG0/CPSW will be used for Ethernet connection?

Yes, it is an independent second network, where we expect to exchange Ethernet frame Layer 2.

Ashwani Goel said:

What is traffic speed expected here?

At the maximum of what we could support.
As we are at 100M on EIP, i expect to be at maximum at 70% of this on network 2. The Regulation will come from Ethernet IP network, by increasing the eip cycle time (RPI).

Ashwani Goel said:

Ethernet and Ethernet/IP packets will be consumed by single R5F core ?

Yes, both network will be handled by same R5F core.




Please can you let us know how can we configure the two Ethernet access in sysconfig ? 

Hi Christophe,

The following response from my colleague Tushar has the detailed steps on how to make the ENET modules show up in the SysConfig : https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1412093/processor-sdk-am64x-ti-networking-with-enet-cpsw-is-not-available-along-with-ti-industrial-toolkit/5452236#5452236 

Please try out these steps and let me know if this unblocks you.

Regards
Archit Dev

Hello,
I followed the response and I have some problems.
- When trying to configure cpsw on sysconfig, I don't see CPSW associated PHY configuration.
- When adding cpsw communication layer (and associated library), I have the following error:

"syscfg/linker.cmd", line 60: error #10099-D: program will not fit into available memory, or the section contains a call site that requires a trampoline that can't be generated for this section. placement with alignment fails for section "GROUP_2" size 0xa3330.  Available memory ranges:
   MSRAM        size: 0x150000     unused: 0x85480      max hole: 0x85478   
    GROUP  :   {
error #10010: errors encountered during linking; "ss1_cpsw_hsrprp2.out" not built
tiarmclang: error: tiarmlnk command failed with exit code 1 (use -v to see invocation)
gmake[1]: *** [ss1_cpsw_hsrprp2.out] Error 1
gmake: *** [all] Error 2
makefile:178: recipe for target 'all' failed

Hi Dupuit Cyril ,

Thanks for update.

I added sysconfig expert to look into this.

Please allow him some time to get back to you.

Regards

Ashwani

HI Ashwani,

Do you have an estimate dateline when you should back to us ?
we are currently blocked without your support.
Thanks
Christophe.

Hi Christophe,

We are attempting to reproduce the issue on our end. 

In order to ensure that we are aligned on the versions used, can you please confirm the SDK version of the following SDKs:
1. Industrial Comms SDK
2. MCU+ SDK 

Regards
Archit

Hi Archit,
We want to use only Industrial Comms SDK with the latest released version ind_comms_sdk_am64x_09_02_00_24.

Also, if it can help:
- sysconfig_1.23.1
- ccs1281

Best regards,
Cyril

HI Cyril,

Thanks for the reply. The MCU+ SDK version enclosed within the ind_comms_sdk_am64x_09_02_00_24 is : 09.02.00.50.

Can you please try it out with the Toolchain version with which, the SDK was tested? They're as follows:
1. CCS Version :  CCS 12.7.0
2. SysConfig Version : SysConfig 1.20.0 
3. Compiler Version : TI ARM CLANG 3.2.2 LTS

Download links for the 3 can be found in the following link : INDUSTRIAL-COMMUNICATIONS-SDK-AM243X Software development kit (SDK) | TI.com

Please let me know how it goes.

Regards
Archit Dev

Archit,
I installed the following:
1. CCS Version :  CCS 12.7.0
2. SysConfig Version : SysConfig 1.20.0 
3. Compiler Version : TI ARM CLANG 3.2.2 LTS

Then, imported hsr_rgmii_demo_am64x-evm_r5fss0-0_freertos_ti-arm-clang with a copy (modification of example.projectspec)

Check that configuration is correct

Open example.syscfg

Add enet (cpsw ) component.

Fix the error by disabling RGMII2 of CPSW

Then, try to configure PHY associated to CPSW:

It is not possible. I don’t see associated entry.

So, with the version you are proposing, I can reproduce the issue.
I was expecting a configuration of CPSW PHY.

Regards,
Cyril

Hi Cyril,

Thank you for the detailed explanation.

According to information provided by the ENET CPSW team - in SDK version 09.02, PHY configuration is performed through the "Board Config" section of the ENET (CPSW) SysConfig instance. Please refer to the attached screenshot for reference.



Regards
Archit 

Hi Archit,.
I have some problems with generated file from \mcu_plus_sdk\source\networking\.meta\enet_cpsw\templates\enet_lwipif.h.xdt

The output file contains #endif but not #if...

Here is the generated file:

/**
 *  \file ti_enet_lwipif.h
 *
 *  \brief Enet Lwip Interface header file.
 */


/*
 *  Functions provided by enet_netif_manager.c to initialize a new netif, create tx & rx tasks, and start a scheduler OS agnostically.
 */
void LwipifEnetApp_startSchedule(LwipifEnetApp_Handle handle, struct netif *netif
);

struct netif * LwipifEnetApp_getNetifFromName(NetifName_e name);


#endif /* TI_ENET_LWIPIF_H_ */ 

Hi Cyril,

Dupuit Cyril said:

I would like to associate lwip interface with icss-emac but not enet(CPSW).

Both ICSS EMAC and ENET(CPSW) have an lwIP interface associated with them. If you're planning to use an LwIP bridge to intercommunicate between the 2 network peripherals, this is what the flow would look like (click the image below to enlarge).

If you provide more details on the requirement and why you'd want the LwIP interface of the ENET removed - I can provide you with some more details.

Dupuit Cyril said:

I have some problems with generated file from \mcu_plus_sdk\source\networking\.meta\enet_cpsw\templates\enet_lwipif.h.xdt

Regarding the SysConfig related queries, I've notified the expert - he'll get back to you with an update soon.

Thanks
Archit