Solve the problem on Zynq Programmable SoC for very easy application

*The purpose and overview of my project I am designing easy application on zynq programmable soc. But it doesn't work correctly. *The application I am designing [login to view URL] I am designing the exact same design as the link. C code which run on PS core [login to view URL] *Problem I build the project, and run on ZYBO. The result is the following. Error : RxBuffer[0] = 0 Error : RxBuffer[1] = 0 Error : RxBuffer[2] = 0 Error : RxBuffer[3] = 0 Error : RxBuffer[4] = 0 Error : RxBuffer[5] = 0 RxBuffer[6] = 11 RxBuffer[7] = 12 RxBuffer[8] = 13 RxBuffer[9] = 14. … The first 5 values of the beginning is wrong. *Notice I want to use C code for high-synthesizing and application code. Don't use C++ code. *Deliverable *design file and project file which run correctly *the explanation why my design doesn't work *My environment Vivado 2015.4 Vivado HLS 2015.4 SDSoC 2015.4 Board zedboard, zybo *I am thinking the budget is 8000JPY.