Revision 1.0, 8/2001
First, set up your environment for code
development. Refer to the IDE Help files for
information and tutorials. National’s COP8 IDE
supports a complete set of tools, including
Simulator, COP8-EM/DM Emulator Debugger,
Aisys’ DriveWay COP8 (optional), and Byte
Craft C-Compiler (optional).
Options for starting code development:
1)
Browse the CD for app notes and existing
source code that match your desired
application. Use and modify as needed.
2)
Browse the CD for source code example
modules to build your application in pieces.
(Start with the COP8 Utilities code
samples). Mix and match as needed.
3)
Start from scratch using the COP8
Assembler (or optional C-Compiler).
DOWNLOADING CODE
You have two methods of downloading your
simulated code to the COBALT board for test
and debug:
1.
Real-time Emulator -
Communication
between the COP8-EM/DM emulator and your
PC is via the RS232 interface.
a. Remove the 40DIP COP8SGR7 from the
COBALT board, and connect the emulator
cable to the empty 40 pin DIP socket.
b. From the COP8 IDE, execute the emulator
Debugger software. The debugger is used to
download your source code file into the
emulator, for execution and debug.
2.
OTP/EPROM Programmer –
A wide
variety of programmers from National and other
third-party vendors are available. The COP8-
PM-00 Engineering Programmer from National
is an ideal solution. In addition to the procedure
below, there are other methods of creating a
programmer .hex file (refer to: AppDM4.PDF):
a. Remove the 40DIP COP8SGR7Q3 from the
COBALT board, and erase for at least 15-30
minutes under a standard UV eraser.
b. Confirm that the ECON is correctly declared
in your assembly source code file.
c. Use the PROMCOP.exe utility to create an
INTEL .hex file. Make sure you add the
ECON directive, so the ECON data is
properly added to the .hex file (The default is
no ECON).
d. Download the resulting INTEL .hex file to any
programmer that supports the COP8SGR740
DIP device.
e. Re-insert the programmed device into the
40DIP socket on the COBALT board.
TARGET DEBUG
After your code is downloaded into the target
COP8, the COBALT target board is ready for
stand-alone operation and test probing. If you
are using a COP8 emulator, then the emulator is
left installed for interactive debugging.
The COBALT target board has a 10MHz crystal
for real-time operation, with an onboard Reset
pushbutton (SW1) for easy Reset/Restart.
LEDs and Switches are provided for I/O
stimulus and visual debug. Test connections for
each of the device’s 40 pins are brought out for
easy probing, or connection to external circuits.
A Microwire/PLUS interface, and an RS232
connector are provided for external serial
communications, along with a variety of I/O
connections and probe points.
If you are not using an emulator, when you are
ready to download another version of the code,
you must remove and erase the COP8, re-program
and re-install in the on-board socket.
3
COP8 OTP/ROM Prototyping Kit QuickStart -
procob1qs.doc
