Hi Hirokazu, This could happen if PC doesn't detect the correct driver for the EVM. You can confirm this by checking the device manager of the PC, the EVM should be detected as "AFE44x0 SPO2 FE EVM". Typically by default , Windows 10 detects the EVM as USB device, so you have to manually update the driver yourself. Following post can help you with the driver installation on Windows 10 machine. e2e.ti.com/.../460543 Regards, Prabin
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