DavidD

Also, I tried using an external 5v power supply with up to 4A of capability. Programming and running worked fine but did not help with the “disconnect every few minutes” issue

Please provide the product ID of a USB cable that is known to work with this device. It did not come with a USB cable. So if your product is sensitive to the cable, then you need to provide a way of someone getting a cable that will work reliably. Otherwise, you need to fix your product to work with most USB cables. Thanks for your help!

Cora Z7 board disconnects every few minutes. I get the message: [Labtools 27-2312] Device arm_dap_0 is no longer available. Check cable connectivity and that the target board is powered up then use the disconnect_hw_server and connect_hw_server to re-initialize the hardware target. Use open_hw_target to re-register the hardware device. Then I have to unplug and replug the USB to get it to be available again so that I can program the FPGA on the Cora Z7 from Vivado. How can this "disconnect every few minutes problem on the Cora Z7 be fixed?