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IOCONFIG_SWITCHECHO.C
which then transmit and then receive an ASCII string when switch S2 or S3 is pressed. The
echoed serial data are displayed in the Dynamic C
Note that the I/O lines that carry the Serial Port E and F signals are not the Rabbit 4000
defaults. The Serial Port E and F I/O lines are configured by calling the library function
that was generated by the Rabbit 4000
Fconfig()
Note that the
RCM45_29MHZ_IOCONFIG.LIB
port this sample program is provided in the Dynamic C
Serial Port E is configured to use Parallel Port E bits PE6 and PE7. These signals are available
on the Prototyping Board's Module Extension Header (header J2).
Serial Port F is configured to use Parallel Port C bits PC2 and PC3. These signals are available
on the Prototyping Board's RS-232 connector (header J4).
Serial Port D is left in its default configuration, using Parallel Port C bits PC0 and PC1. These
signals are available on the Prototyping Board's RS-232 connector (header J4). Serial Port D
transmits and then receives an ASCII string with Serial Port F when switch S3 is pressed.
To set up the Prototyping Board, you will need to tie TxC and
RxD together on the RS-232 header at J4 using the jumpers sup-
plied in the Development Kit; you will also tie TxE (PE6) and
RxE (PE7) together with a soldered wire or with a wire jumper if
you have soldered in the IDC header supplied with the accessory
parts in the Development Kit.
Once you have compiled and run this program, press and release
switches S2 or S3 on the Prototyping Board. The data echoed
between the serial ports will be displayed in the
User's Manual
—This program demonstrates how to set up Serial Ports E and F,
library generated by
STDIO
STDIO
window.
utility program.
IOCONFIG.EXE
IOCONFIG.EXE
SAMPLES\RCM4500W\SERIAL
+3.3 V
/RST_OUT
PE5
PE7
PD1/LN1
PD3/LN3
PD5/LN5
PD7/LN7
VREF
window.
serE-
to sup-
folder.
J2
GND
/IORD
J4
PE6
PD0/LN0
RxC
TxD
PD2/LN2
RxD
TxC
PD4/LN4
PD6/LN6
GND
CVT
AGND
21
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