User's Manual

HF-A21-SMT Embedded WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
www.hi-flying.com
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 Use HF-A21-SMT STA interface
HF-A21-SMT and debug PC2 connect to a wireless AP, another PC1 (or user device) connect to
HF-A21-SMT module with serial port:
Figure 28. STA Interface Debug Connection
 Use HF-A21-SMT AP interface
Debug PC2 connect to HF-A21-SMT through wireless connection, another PC1 (or user device)
connect to HF-A21-SMT module with serial port.
Figure 29. AP Interface Debug Connection
3.2.3. Module Debug
PC1 open “CommTools” program, setting the same serial port parameters with HF-A21-SMT
module and open serial port connection.
Figure 30. “CommTools” Serial Debug Tools