101-1121 Rabbit Semiconductor, 101-1121 Datasheet - Page 99
![KIT CAMERA INTERFACE APPLICATION](/photos/9/18/91835/101-1121_sml.jpg)
101-1121
Manufacturer Part Number
101-1121
Description
KIT CAMERA INTERFACE APPLICATION
Manufacturer
Rabbit Semiconductor
Series
RabbitCore 3000r
Specifications of 101-1121
Sensor Type
Motion, PIR (Pyroelectric Infrared)
Interface
10/100 BaseT Ethernet
Embedded
Yes, Other
Utilized Ic / Part
RCM3365
Interface Type
Ethernet
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Voltage - Supply
-
Sensitivity
-
Sensing Range
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
316-1119
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B.4.6.1 RS-232
RS-232 serial communication on the Prototyping Board is supported by an RS-232 trans-
ceiver installed at U9. This transceiver provides the voltage output, slew rate, and input
voltage immunity required to meet the RS-232 serial communication protocol. Basically,
the chip translates the Rabbit 3000’s signals to RS-232 signal levels. Note that the polarity
is reversed in an RS-232 circuit so that a +5 V output becomes approximately -10 V and 0
V is output as +10 V. The RS-232 transceiver also provides the proper line loading for
reliable communication.
RS-232 can be used effectively at the RCM3365/RCM3375 module’s maximum baud rate
for distances of up to 15 m.
RS-232 flow control on an RS-232 port is initiated in software using the
serXflowcontrolOn
The locations of the flow control lines are specified using a set of five macros.
Standard 3-wire RS-232 communication using Serial Ports E and F is illustrated in the fol-
lowing sample code.
User’s Manual
SERX_RTS_PORT—Data register for the parallel port that the RTS line is on (e.g., PGDR).
SERX_RTS_SHADOW—Shadow register for the RTS line's parallel port (e.g., PGDRShadow).
SERX_RTS_BIT—The bit number for the RTS line.
SERX_CTS_PORT—Data register for the parallel port that the CTS line is on (e.g., PCDRShadow).
SERX_CTS_BIT—The bit number for the CTS line.
#define EINBUFSIZE
#define EOUTBUFSIZE 15
#define FINBUFSIZE
#define FOUTBUFSIZE 15
#define MYBAUD 115200
#endif
main(){
}
serEopen(_MYBAUD);
serFopen(_MYBAUD);
serEwrFlush();
serErdFlush();
serFwrFlush();
serFrdFlush();
serEclose(_MYBAUD);
serFclose(_MYBAUD);
function call from
15
15
// set baud rate
// set size of circular buffers in bytes
// open Serial Ports E and F
// flush their input and transmit buffers
// close Serial Ports C and D
RS232.LIB
, where
X
is the serial port (E or F).
93
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