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The following steps are used to program the EPROM MCU:
a.
Place programmer switches S3 and S4 in the OFF position.
b.
Connect +27 Vdc source to P1 connector. (Refer to paragraph 2.4.1.)
c.
Reposition fabricated jumpers on headers J21-J24 between pins 2 and 3.
Jumper repositioning will reconfigure the EVM for the programming mode of
operation. (Refer to paragraph 2.3.8.)
d.
Press MASTER RESET switch S5.
e.
Insert MC68705 EPROM MCU into programming socket XU57 or XU58.
f.
XU57 for 28-pin device (MC68705P3/P5)
XU58 for 40-pin device (MC68705R3, MC68705U3/U5)
Place switch S4 (+5 Vdc programming power) to the ON position and observe
that LED indicator CR8 is illuminated.
g.
Place switch S3 (Programming VPP) to the ON position and observe that LED
indicator CR7 is illuminated.
h.
Enter PROG command. (Refer to paragraph 3.6.11.)
i.
PROGRAM LED indicator (CR1) will illuminate upon completion of the
programming sequence.
Depending upon the length of the user program, CR1 will illuminate from a
number of seconds to 3 minutes depending upon the length of the user
program. Approximately 2 seconds later, the VERIFY LED indicator (CR2) will
illuminate upon completion of the verify sequence.
The terminal CRT will
display the monitor prompt ">" upon completion of the program/verify sequence.
If the programming sequence cannot be verified, the VERFIFY indicator will not
illuminate.
j.
Press MASTER RESET switch S5.
k.
Place switch S3 to the OFF position.
I.
Place switch S4 to the OFF position.
m.
Remove programmed EPROM MCU device from programming socket. Repeat
the procedure from step (d.) to program additional devices.
n.
When EPROM MCU programming is complete, fabricated jumpers on headers
J21-J24 are reposition between pins 1 and 2.
Jumper repositioning
wm
reconfigure the EVM for the evaluation mode of operation. (Refer to paragraph
2.3.8)
EVALUATION MODULE USER'S MANUAL
M68705EVM
MOTOROLA
3-27
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