Remote Processing RPC-210 - Manual (Page 25)

SERIAL & SPI PORTS BASIC SECTION 4
Page 4-7
COMMANDS
The following is a list of RPBASIC-52 commands used
for serial I/O. These commands and functions are
explained in the BASIC-52 Programm ing Manual or
RPBASIC-52 Software Supplement in this manua l.
Command Function
C L E AR C O M $ Clears serial input buffer
C O M $ Returns string from buffer
COM Return s numbe r of char acters in
buffer
C O N F I G BA U D Sets serial port parameters
GET Returns a character fr om the
serial buffer
I N P U T Receives string from port
LIST Outputs program listing
O N C OM $ Branches to a subroutine when
specified parameters are met
P R I N T Outputs data in various fo rma ts
PRINT #, Prints to a specified port
SPC Print out n number of spaces
SPI Reads or writes SP I data
SCON Configures SPI port
STR Various string comma nds. Useful
for networking and output
formatting.
TAB Tabs to predetermined positions
UI0 Reroute inputs to COM0
UI1 Route inputs to COM1
UO0 Rerou te PRIN T statem ent to
C O M 0
UO1 Route PRINT statement to COM1
U S I N G PRINT formatting statement
RS-232 PORT PIN OUT
Pin outs for J1 and J2 are shown below. Unused pins
are open.
J1
C O M 0
J2
C O M 1
N a m e Direction from
card
3 3 TxD Out
4 RTS In
5 5 RxD In
6 CTS Out
9 9 Ground
10 10 + 5V
RS-422/485 PORT PIN OUT
Pin out for RS-422/RS-485 port at J6 is below.
Pin No. Description
1 T+
2 T-
3 Ground
4 R+
5 R-