windows_esp32_eclipse_esp-prog_ jtag问题求解

windows下eclipse开发esp32,芯片为esp32-u4wdh，想用JTAG下载调试程序，买了esp-prog，驱动安装替换好了，

在eclispe里面下载程序就出了问题：

adapter speed: 20000 kHz


Flashing E:/Espressif/workspace/blink/build/bootloader/bootloader.bin at 0x1000

Error: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED

Error: libusb_open() failed with LIBUSB_ERROR_ACCESS

Error: no device found

Error: unable to open ftdi device with vid 0403, pid 6010, description '*', serial '*' at bus location '*'

Error: no device found

Error: unable to open ftdi device with vid 0403, pid 6014, description '*', serial '*' at bus location '*'

** OpenOCD init failed **

shutdown command invoked

** Flashing Failed **



run configuration 里面openocd的设置：

-s ${openocd_path}/share/openocd/scripts -f interface/ftdi/esp32_devkitj_v1.cfg -f target/esp32.cfg

我怀疑是设置有问题，看了变量openocd_path，好像没有值

有没有大神知道什么原因，如何解决？