Remote-processing RPC-2350 Manuel d'utilisateur télécharger pdf (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 mating connector (terminal housing) part number is

22-01-3077. Cr imp terminal part number s are 08-50-

0114 (tin plate) or 08-55-0102 (gold). A low cost

crimping tool is 63811-1000. Parts and tools are

available from Digi-Key (800 344 4539 or

www.digikey.com)

Other housings and terminals are available (such as high

pressure). Refer to a Molex data book for more

information. AMP M T connectors (such as 87499-1)

can also be used. They fit, but are not polarized.

SERIAL PORT FILE NUMBERS

CAM BASIC references the ser ial I/O ports by file

numbers. The following table lists the corresponding

file number to serial I/O port and how they ar e used with

the various ports.

Description File Examples

COM1 1 PRINT "Hello"

PRINT #1," Hello"

INPUT A$

A$ = INKEY$(1)

COM2 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 CAMBASIC commands used

for serial I/O. Some variations are not listed here. Refer

to the CAMBA SIC Programming Manual for more

information.

Command Function

CLEAR COM$ Clears serial input buffer

COM$ Returns string from buffer

CONFIG BREAK Prevents < ESC> from

stopping the program

CONFIG BAUD Sets serial port parameters

CONFIG COM$ Configures port for ON

COM $(n) interrupt

INKEY$ Returns a character from the

serial buffer

INPUT Receives string or number

from port

LIST Outputs program listing

ON COM$ Calls subroutine on serial input

PRINT Outputs data in various formats

SPI Serial I/O for external IC’s

TAB Tabs to predetermined positions

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 82 83

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Remote-processing RPC-2350 Manuel d'utilisateur Page 25

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