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I have a touchscreen assembly and I'm struggling to program it. I've connected the female USB port on the board to my computer using a male-to-male USB cable, and the board shows up as a COM port. However, when I try to send a handshake request using Terminal Assistant software, I'm not getting any response. Could you please assist me in troubleshooting this issue? I'm not sure if there's a specific procedure I should follow or if there's something that needs to be configured. Your guidance would be greatly appreciated!