Intel Intel 80188EB, User Manual

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Chapter 4 Interfacing to Your Round Card
©
National Instruments Corporation 4-7 80188EB-Based Fieldbus Round Card User Manual
The various hardware components on the Round Card are mapped into
processor memory. The memory locations of the EPROM, RAM, and
Frontier-1 are shown in Table 4-1.
Burn Your Flash
After you have run the locator, you are ready to burn your Flash, place
it in the Round Card, and test your program.
The Fieldbus Round Card provides a method for you to burn the Flash
on the Round Card without an external burner device. This method
involves the use of the
niBurn
utility, an RS-232 port on the host, and
serial port 1 on the Round Card. This method requires you to build an
RS-232 to TTL serial converter cable to connect to the W2 connector
on the Round Card.
Complete the following steps to burn the Flash with the
niBurn
utility:
1. Power up the Round Card in PROG Mode (see the Hardware
Overview section of Chapter 1, Introduction, for more information
about PROG Mode).
2. Make sure that the user program is located at physical address
C0000, because this is the address the
niBurn
utility jumps to when
the board is reset in RUN mode, or when
niBurn
has successfully
downloaded the user program into the Flash in PROG mode.
3. Launch
niBurn
. The
niBurn
utility is located in the NI Fieldbus
program group on the host. When you launch the
niBurn
utility,
it prompts you for the name of your binary file, and the COM port
to use.
Table 4-1. Memory Map of Round Card
Component Size Memory Window (hex)
SRAM 128 KB
×
8 00000–1FFFF
Flash 256 KB
×
8 C0000–FFFFF
Frontier-1 1 KB
×
8 20000–20400*
* The Frontier-1 needs a 32-byte window for accessing its registers, but the minimum
memory window size that can be allocated is 1 kb, so the Frontier-1 registers are aliased
within this 1 kb memory space.