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437x xds2xx usb EMULATOR ERROR

Hi everyone

When I use xds2xx simulator ,A9  can connect successfully But the connection PRU will  wrong.

"PRU_ICSS1_PRU0: Trouble Reading Register PC: (Error -2138 @ 0x0) Unable to determine device revision. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 5.1.450.0)"

Please tell me what should i do

Thanks

Aria Li

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