PROCESSOR-SDK-J721E: 我将pdk_jacinto_08_06_01_03中的ipc_rtos_echo_test与enet_lwip_example放在一起运行导致enet dma无法接收到任何数据

Li Rui

两个example运行在mcu2_0上，在mcu2_1只运行enet_lwip_example，mcu2_0没有接收到mcu2_1 ipc消息时能够正常运行lwip和ipc，但是当mcu2_0接收到来着mc2_1的ipc消息时lwip无工作，我排查源代码发现原因是无法在DMA接收通道中获取数据包，有什么解决办法吗

over 1 year ago

0 Shine over 1 year ago

TI__Guru**** 357097 points

Li Rui said:
两个example运行在mcu2_0上，在mcu2_1只运行enet_lwip_example，

这句不是很明白，两个exampel都是运行在mcu2_0上的？然后enet_lwip_example还运行在mcu2_1上？

0 Li Rui over 1 year ago in reply to Shine

Prodigy 10 points

对enet_lwip_example和ipc_rtos_echo_test进行了部分修改，分别创建任务，这样两个可以在mcu2_0上一起运行，在mcu2_1上只有ipc_rtos_echo_test为了实现ipc通信

0 Shine over 1 year ago in reply to Li Rui

TI__Guru**** 357097 points

我需要升级到e2e英文论坛，能否发一下修改的那部分代码？

0 Li Rui over 1 year ago in reply to Shine

Prodigy 10 points

static void taskFxn(void *a0, void *a1)
{
    /* Initialize SCI Client - It must be called before board init */
    ipc_initSciclient();

    ipc_boardInit();

    Ipc_echo_test();

    EnetApp_appInitTask();
}

EnetApp_appInitTask()来之enet_lwip_example中的任务函数，taskFxn属于ipc_rtos_echo_test中的任务函数，ipc_rtos_echo_test中的main函数作为整个程序的入口，enet_lwip_example中main函数删除掉，mpu配置文件采用ipc_rtos_echo_test中的

0 Shine over 1 year ago in reply to Li Rui

TI__Guru**** 357097 points

抱歉，e2e英文论坛这几天在维护，等好了，我再升级到e2e论坛。
https://e2e.ti.com/support/processors-group/processors/f/processors-forum

0 Shine over 1 year ago in reply to Li Rui

TI__Guru**** 357097 points

已升级到英文e2e论坛，请关注下面帖子的回复。
https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1251642/tda4vm-enet-dma-can-t-receive-data-when-running-ipc_rtos_echo_test-and-enet_lwip_example-two-demo

0 Shine over 1 year ago in reply to Li Rui

TI__Guru**** 357097 points

请看下面e2e工程师的回复。

Shine said:

Then run the two examples on mcu2_0 and enet_lwip_example on mcu2_1.

It means you are running lwip example on MCU2_0 and MCU2_1? It is not tested out of box SDK.
MCU2_0 lwip example runs for CPSW9G where as MCU2_1 lwip example runs for CPSW2G.

Shine said:

When mcu2_0 doesn't receive the ipc message from mcu2_1, the lwip and ipc code can run successfully. But when mcu2_0 received the ipc message from mcu2_1, Iwip can't work.

As per above you are running lwip example on MCU2_1, It may not have IPC communication with MCU2_0 but how IPC message received to MCU2_0 from MCU2_1.

Also, can you please confirm any modifications made on either of ipc_echo_test and lwip example?
If no then IPC echo test and lwip were independent you should not see any issue until ipc echo task blocking lwip task.

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PROCESSOR-SDK-J721E: 我将pdk_jacinto_08_06_01_03中的ipc_rtos_echo_test与enet_lwip_example放在一起运行导致enet dma无法接收到任何数据