Flexport HF2211 - Uart;Buf;Flowctrl Command; Uart;Buf;Gaptime Instruction; Uart;Buf;Swflowctrl Command

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HF2211 Serial Server Device User Manual

http://www.iotworkshop.com - 53 -

4.2.1.25. UART/Buf/GapTime Instruction

 Function: Display/Set UART free frame gap time.

 Format:

 Query

 Set

<GapTime> [value]

 Parameter:

GapTime is used for setting UART free frame time gap. If the received data gap time is

more than setting value, the data packet will be breaked into two frame.

 Value: Default: 50ms. Length Range: 10～1000ms.

4.2.1.26. UART/Buf/FlowCtrl Command

 Function: Display/Set UART flow control function.

 Format:

 Query

 Set

<FlowCtrl> [Enable/Disable]

 Parameter:

Flow control includes software flow control and hardware flow control. Software flow

control priority is higher than hardware. If enable software flow control, the hardware

flow control pin(CTS/RTS) will be useless. Software flow control use special UART data

for control. Hardware flow control use CTS/RTS pin control. Setting is valid immediately.

 Flow Control: Flow control function.

 Half-Duplex: Enable RS485 half-duplex function, UART0_RTS is used for RS485

chip control function.

 Disable: Flow control function. Default: Disable.

4.2.1.27. UART/Buf/SWFlowCtrl Command

 Function: Display/Set UART software flow control function.

 Format:

 Query

 Set

<SWFlowCtrl> [Enable/Disable]

 Parameter:

Enable software flow control function. The device UART can output data After UART

received Xon single-byte enable data. When UART received Xoff single-byte disable

data. It will disable the device UART output data.

 Enable: Enable software flow control function, When in enable status, it allow

UART data output when bootup by default.

 Xon: Enable UART output data. Default: 0x11.

 Xoff: Disable UART output data. Default: 0x13.