Dynamic C Function Calls; Digital I/O; Serial Communication Drivers; Tcp/Ip Drivers - Rabbit RabbitCore RCM3400 User Manual

5.2 Dynamic C Function Calls

5.2.1 Digital I/O

The RCM3400 was designed to interface with other systems, and so there are no drivers
written specifically for the I/O. The general Dynamic C read and write functions allow
you to customize the parallel I/O to meet your specific needs. For example, use
WrPortI(PEDDR, &PEDDRShadow, 0x00);
to set all the Port E bits as inputs, or use
WrPortI(PEDDR, &PEDDRShadow, 0xFF);
to set all the Port E bits as outputs.
When using the auxiliary I/O bus on the Rabbit 3000 chip, add the line
#define PORTA_AUX_IO
to the beginning of any programs using the auxiliary I/O bus.
The sample programs in the Dynamic C
examples.

5.2.2 Serial Communication Drivers

Library files included with Dynamic C provide a full range of serial communications sup-
port. The
RS232.LIB
library provides packet-based serial functions where packets can be delim-
PACKET.LIB
ited by the 9th bit, by transmission gaps, or with user-defined special characters. Both
libraries provide blocking functions, which do not return until they are finished transmit-
ting or receiving, and nonblocking functions, which must be called repeatedly until they
are finished. For more information, see the Dynamic C Function Reference Manual and
Technical Note 213, Rabbit 2000 Serial Port Software.

5.2.3 TCP/IP Drivers

The TCP/IP drivers are located in the TCPIP directory.
Complete information on these libraries and the TCP/IP functions is provided in the
Dynamic C TCP/IP User's Manual.
User's Manual
// required to enable auxiliary I/O bus
SAMPLES/RCM3400
library provides a set of circular-buffer-based serial functions. The
directory provide further
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