Codosaurus

More questions: "Check if the target is in: 1. Split JTAG - No operations are possible with ARM DAP. 2. Non JTAG bootmode - Bootrom may need time to enable DAP." 3] What the heck is "Split JTAG", and how can I tell if I am in it? "Troubleshooting hints: 1. Check whether board is connected to system properly. 2. In case of zynq board, check whether Digilent/Xilinx cable switch settings are correct. 3. If you are using Xilinx Platform Cable USB, ensure that status LED is green." 4] What are the proper "Digilent/Xilinx cable switch settings"? 5] Does "Xilinx PLatform Cable USB" refer to the USB cable that came with the Zybo Z7? and where the heck is the "status LED" that is supposed to be green?

I believe I am having the exact same problem: I am following the "Getting Started with Vivado and Vitis for Baremetal Software Projects" tutorial on the Zybo Z7 Resource Center page. I have successfully built the project. JP5 (The programming mode select jumper) is set to "JTAG". My USB JTAG/UART port is connected to a USB port on my pc using the cable that came with the board. I am using Vivado HLS version 2020.1 (as specified in the tutorial) on CentOS 7. I have opened a PuTTY terminal (115200 baud,8 data,1 stop, no parity, no flow control) connected to ttyUSB0. Running "dmesg | grep FTDI" produces this: [ 357.584207] usbserial: USB Serial support registered for FTDI USB Serial Device [ 357.584670] ftdi_sio 7-1:1.0: FTDI USB Serial Device converter detected [ 357.587648] usb 7-1: FTDI USB Serial Device converter now attached to ttyUSB0 [ 357.587694] ftdi_sio 7-1:1.1: FTDI USB Serial Device converter detected [ 357.591322] usb 7-1: FTDI USB Serial Device converter now attached to ttyUSB1 My questions: 1] I think I have done everything specified in the tutorial. Have I missed some setting that would cause this? 2] How do I know which port (ttyUSB0 or ttyUSB1) my terminal should attach to?