參數(shù)資料
型號(hào)： 101-0654
廠商： Rabbit Semiconductor
文件頁數(shù)： 87/110頁
文件大小： 0K
描述： INTERFACE OP6800 W/ETHERNET 512K
標(biāo)準(zhǔn)包裝： 10
系列： SBC
模塊/板類型： 單板計(jì)算機(jī)模塊
適用于相關(guān)產(chǎn)品： OP6800
74
MiniCom (OP6800)
D.3 Serial Communication (OP68xx.LIB)
Library files included with Dynamic C provide a full range of serial communications sup-
port. The RS232.LIB library provides a set of circular-buffer-based serial functions. The
PACKET.LIB
library provides packet-based serial functions where packets can be delim-
ited by the 9th bit, by transmission gaps, or with user-defined special characters. Both
libraries provide blocking functions, which do not return until they are finished transmit-
ting or receiving, and nonblocking functions, which must be called repeatedly until they
are finished. For more information, see the Dynamic C User’s Manual and Technical
Note TN213, Rabbit 2000 Serial Port Software.
Use the following function calls with the OP6800.
User interface to set up OP6800 serial communication lines. Call this function after serXOpen().
Whether you are opening one or multiple serial ports, this function must be executed after executing the last
serXOpen function AND before you start using any of the serial ports. This function is non-reentrant.
If Mode 1 is selected, CTS/RTS flow control is exercised using the serCflowcontrolOn and
serCflowcontrolOff functions from the RS232.LIB library.
PARAMETER
mode is the defined serial port configuration
.
RETURN VALUE
0 if valid mode, 1 if not.
SEE ALSO
ser485Tx, ser485Rx
NOTE: Be sure to call serMode before either of the next two functions.
Sets pin 3 (DE) high to enable the RS-485 transmitter. Remember to call serMode before calling
ser485Tx.
SEE ALSO
serMode, ser485Rx
int serMode(int mode);
Mode
Serial Port
B
C
D
0
RS-232, 3-wire
RS-485
1
RS-232, 5-wire
CTS/RTS
RS-485
void ser485Tx(void);
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