User Manual

High-Flying
HF-LPT200 Low Power WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com) - 20 -
 Wireless Network Parameters
 Wireless Network Name（SSID）
 Security Mode
 Encryption Key
 TCP/UDP Linking Parameters
 Protocol Type
 Link Type（Server or Client）
 Target Port ID Number
 Target Port IP Address
 Serial Port Parameters
 Baud Rate
 Data Bit
 Parity (Check) Bit
 Stop Bit
 Hardware Flow Control
2.3. UART Frame Scheme
2.3.1. UART Free-Frame
HF-LPT200 support UART free-frame function. If user select open this function, module will check the
intervals between any two bytes when reciving UART data. If this interval time exceeds defined value
(50ms default), HF-LPT200 will think it as the end of one frame and transfer this free-frame to WiFi
port, or HF-LPT200 will receive UART data untill 1000 bytes, then transfer 1000 bytes frame to WiFi
port.
HF-LPT200’s default interval time is 50ms. User can also set this interval to fast (10ms) through AT
command. But user have to consider if user MCU can send UART data with 10ms interval ,or the
UART data may be divide as fragment.
Through AT command: AT+UARTTE=fash/normal, user can set the interval time: fast (10ms) and
normal (50ms).
2.3.2. UART Auto-Frame
HF-LPT200 support UART auto-frame function. If user select open this function and setting auto-frame
trigger length and auto-frame trigger time parameters, then module will auto framing the data which
received from UART port and transmitting to the network as pre-defined data structure.
 Auto-frame trigger length: The fixed data length that module used to transmitting to the
network.
 Auto-frame trigger time: After the trigger time, if UART port received data can’t reach auto-
frame trigger length, then module will transmitting available data to the network and bypass
the auto-frame trigger length condition.