Acrosser AR-B1320 - Manual (Page 54)

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5-5
(4) Receive data
The RS-485 operation of receiving data is the same as RS-232’s.
(5) Basic Language Example
a.) Initial 86C450 UART
10 OPEN “COM1:9600,m,8,1”AS #1 LEN=1
20 REM Reset DTR
30 OUT &H3FC, (INP(%H3FC) AND &HFA)
40 RETURN
b.) Send out one character to COM1
10 REM Enable transmitter by setting DTR ON
20 OUT &H3FC, (INP(&H3FC) OR &H01)
30 REM Send out one character
40 PRINT #1, OUTCHR$
50 REM Check transmitter holding register and shift register
60 IF ((INP(&H3FD) AND &H60) >0) THEN 60
70 REM Disable transmitter by resetting DTR
80 OUT &H3FC, (INP(&H3FC) AND &HEF)
90 RETURN
c.) Receive one character from COM1
10 REM Check COM1: receiver buffer
20 IF LOF (1)<256 THEN 70
30 REM Receiver buffer is empty
40 INPSTR$”
50 RETURN
60 REM Read one character from COM1: buffer
70 INPSTR$=INPUT$(1,#1)
80 RETURN
Note:
If the content in Setting is inconsistent with the CD-ROM. Please refer to the Setting as the priority.