Uart communication

I am new to this stuff. I am stuck at a point. I am using DE1 SOC board and I just want send a file from PC to usb uart0. I am using intel monitor program. Can some body send me an sample arm program in c using intel monitor project and communication with usb uart. I have configured usb uart but I am not sure

about it. Help me please how can I accomplish this task.

I am using intel monitor sample program named as JTAG Uart and trying to convert it for usb uart.

I am lost seeing the register and configuration of port . in the link

https://www.intel.com/content/www/us/en/programmable/hps/cyclone-v/hps.html#sfo1410069884928.html%23sfo1410069884928

Please if possible some body can send me a sample project for HPS arm communicating with USB Uart using intel monitor program on the software side and DE1 soc computer system on the hardware side.