Remote Processing RPC-2350 - Manual (Page 25)

SERIAL PORTS CHAPTER 4
4-6
The table below is the pin out for SPI port J11.
Pin No. Description
1 Clock output to device
2 Serial data to external device
3 Serial data from external device
4 SPI 1 select (active low). Used for touch
screen select.
5 SPI 2 select (active low)
6 + 5V supply
7 Ground
SPI Port connector type information
The SPI port connector header is a Molex-Waldom type.
Its part number is 22-23-2071. This is a 0.1" center,
0.025 post connector.
The m ating connec tor (ter minal hou sing) part n umber is
22-01-3077. Cr imp terminal part number s are 08-50-
0114 (tin plate) or 08-55-0102 (go ld). A low cost
crimping tool is 63811-1000. Parts and tools are
available from Digi-Key (800 344 4539 or
w w w . d ig ik e y. c o m )
Other housings and terminals are available (such as high
pressure). Refer to a Molex data book for more
information. A MP M T connectors (such as 87499-1)
can also be used. They fit, but ar e not polarized.
SERIAL PORT FILE NUMBERS
CAM BASIC refer ences the ser ial I/O ports by file
numbers. The following table lists the corresponding
file numbe r to ser ial I/O port and h ow they ar e used with
the various ports.
Description File Examples
C O M 1 1 PRINT "Hello"
PRINT #1," Hello"
INPUT A$
A$ = INKEY$(1)
C O M 2 2 PRINT #2," Hello"
INPUT #2,A$
A$ = INKEY$(2)
COM1 is J1, the console port. COM2 is J4, the primary
port.
COMMANDS
The following is a list of CAM BASIC commands used
for serial I/O. Some variations are not listed here. Refer
to the CAMBA SIC Programming Manual for more
information.
Command Function
C L E AR C O M $ Clears serial input buffer
C O M $ Returns string from buffer
CONFIG BREAK Prevents < ESC> from
stopping the program
C O N F I G BA U D Sets serial port parameters
C O N F IG C O M $ Configures port for ON
COM $(n) interrupt
INKEY$ Returns a character fr om the
serial buffer
I N P U T Receives string or number
from port
LIST Outputs program listing
O N C OM $ Calls subroutine on serial input
P R I N T Outputs data in various fo rma ts
SPI Serial I/O for exter nal IC’s
TAB Tabs to predetermined positions