Unexpected TLV Command Responses from DWM1001 Over UART

Wireless Connectivity Ultra-Wideband
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1

Goal:

We are trying to collect sensor values (RSSI, SNR, FP Power) and distance values from the DWM1001 tag using TLV commands over UART.

Current Status:

• UART connection is successful.

• 0x34020300 (GPIO state setting) command returns an unexpected response (34020d0a…).

• 0x3500 (GPIO state reading) command returns an incomplete response (35).

• Possible causes: TLV recognition failure, buffer size issue, or firmware restriction.

:point_right: Any advice or insights on fixing this issue would be appreciated!