I am using ZYBO Z7-20 board and Vivado, Xilinx SDK, Petalinux in version 2017.4.
I want to make some tests on HDLC module. Transmission of data works correctly (in PPP mode HDLC sends a broadcast message every 5sec). My question is: how to check receiving data? I was thinking about two ways. The first one relies on using a loopback mode. The second way is to use two HDLC modules. One of them transmits data and the other one receives it. In this situation, I would like to make this communication out of kernel. Does anyone have experience with such a thing? Does anyone have some information about it?