Hi i want to use the "Listing 14. An example of code that uses the video-out port" of the document: "DE10-Nano Computer System with Nios® II " It describes how to print out a rectangel with characters onto a HDMI display.

Now I created a new project with the Intel FPGA Monitor Program. I configured with the example video.

Then ..like always... nothing happens after upload.. then I used eclipse put in again my files (video.c and libs) and it worked. Then I made some change in the String. then a new comination appeared: on top of the screen random pixel appeared and the string also appeared. but I couldn change the string now... needed to download the sof with fpga monitor program again and again needed to put in video.c... now it worked again. but only for 1 time. after changing the string again it hung up or something... now i am trying the third time