MCU-PLUS-SDK-AM243X: LwIP interface for ICSS-EMAC doesn't support concatenated pbuf

Andrea Tessadri

Tool/software:

I use the AM243X Industrial COMMS SDK 09.02.00.09 and I found the LwIP interface source code for ICSS-EMAC doesn't support concatenated pbuf.

In the file am243x-mcu-plus-sdk\source\networking\icss_emac\lwipif\src\lwip2icss_emac.c the transmit function Lwip2Emac_sendTxPackets gets a pbuf as argument but it ignores if it is a concatenated object

In order to have the LwIP stack working properly, there must be a define in lwipopts.h

#define LWIP_NETIF_TX_SINGLE_PBUF 1

9 months ago

0 Ashwani Goel 9 months ago

TI__Mastermind 26330 points

Hi Andrea Tessadri,

Thanks for your query.

I will check onm this and get back to you.

Regards

Ashwani

0 Ashwani Goel 9 months ago

TI__Mastermind 26330 points

Andrea Tessadri said:
LwIP interface source code for ICSS-EMAC doesn't support concatenated pbuf

Currently, this is not supported.

Regards

Ashwani

0 Andrea Tessadri 9 months ago in reply to Ashwani Goel

Intellectual 567 points

I would please recommend to amend your documentation adding the LwIP option that let the system to work properly:

#LWIP_NETIF_TX_SINGLE_PBUF 1

+1 Ashwani Goel 9 months ago in reply to Andrea Tessadri

TI__Mastermind 26330 points

Thanks Andrea Tessadri,

I will convey your message to dev team.

Regards

Ashwani

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MCU-PLUS-SDK-AM243X: LwIP interface for ICSS-EMAC doesn't support concatenated pbuf