Hi Martin, The ethernetip adapter can run over the low latency cut-thru switch implementation on ICSS using NDK as TCP/IP stack. So once you strip the Ethernet/IP layer (from your post i guess you have already done it ),you get a Switch application. The ICSS Switch driver for NDK (built along with os_driver) enables the application/ NDK stack to communicate with PRU firmware. Now on your questions so you mean I should not use the APIs from the "am335xPruReferenceGuide" but the NDK functions instead? In order to get basic TCP/IP functionality it is not required. Can the NDK be used without using TI-RTOS? No In the EthernetIp_adapter example all the network code should be somewhere in EIPMain(), shouldn't it? Currently the network code is part of the ethernetip library. For more info refer Regards, Prajith
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