Z-World RCM3000, User Manual

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User’s Manual 71
The assignments from the
WIFI_INTERP_PINCONFIG.LIB
library are shown below for
the factory configuration, and would have to be changed according to any changes you
make to the pins used on Parallel Port B.
#define INTERP0_ADDR0_PORTB_PIN 2 // indicates which PB pin connects to M_A0
#define INTERP0_ADDR1_PORTB_PIN 3 // indicates which PB pin connects to M_A1
#define INTERP0_ADDR2_PORTB_PIN 4 // indicates which PB pin connects to M_A2
#define INTERP0_CS_PORTB_PIN 5 // indicates which PB pin connects to M_CS
Any of the PE0, PE1, PE4, PE5, and PE7 pins on Parallel Port E can be configured for the
M_/RD and M_/WR read and write strobes via 0
Ω
resistors as shown below, or /IORD
and /IOWR may be used. The factory defaults are shown in italics.
First, the software must identify whether the Parallel Port E read and write strobes are active.
#define INTERP0_USE_PORTE_RD_STRB x
#define INTERP0_USE_PORTE_WR_STRB x
Use
x
= 0 for strobe on Parallel Port E not active, use
x
= 1 for strobe on Parallel Port E
active. If the strobe on Parallel Port E is not active, the corresponding /IORD and /IOWR
will be used for the read and write strobes.
The read and write strobe assignments on Parallel Port E are then done in the
WIFI_
INTERP_PINCONFIG.LIB
library. The assignments are shown below for the factory con-
figuration, where the read strobe is on pin PE0 of Parallel Port E, and the write strobe is on
pin PE4 of Parallel Port E.
#define INTERP0_PORTE_RD_STRB 0 // indicates which PE pin to use
// for Read strobe
#define INTERP0_PORTE_WR_STRB 4 // indicates which PE pin to use
// for Write strobe
The read and write strobe assignments may also be defined in your program, in which case
the defaults will be ignored.
The read and write strobe assignments also determine the base address regardless of
whether the strobing is being done from Parallel Port E.
Note that IrDA on the Prototyping Board cannot be used simultaneously with Wi-Fi when
the factory configuration of the RCM3600–RCM3700 Interposer Board is used.
Rabbit 3000
I/O
M_/RD M_/WR
PE0 R31 R25
PE1 R32 R26
PE4 R33 R27
PE5 R34 R28
PE7 R35 R29
/IORD R36 —
/IOWR — R30