M68ICS05KJ Freescale Semiconductor, M68ICS05KJ Datasheet - Page 226

• Manufacturer Part Number: M68ICS05KJ
• Description: SIM PROGRAM FOR 68HC705KJ/J1A
• Manufacturer: Freescale Semiconductor
• Type: Simulator/Programmerr

Specifications of M68ICS05KJ

• Contents: Programmer, Power Supply, Assembler/Simulator/Debugger, Cable, Software and Documentation
• For Use With/related Products: 68HC705KJ/JIA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TECHNICAL REFERENCE AND TROUBLESHOOTING
B.4
If you experience problems when programming a 705KJ/J1A MCU but can perform other
simulator functions, follow these steps:
B-4
7. If 5 Vdc is present between U4 pins 40 and 20, use an oscilloscope to check the
8. If the problem has not been found, measure the following two signals while entering
9. If the problem persists, check LED DS1. Remove U4 from its socket, then short U4
10. If, during the quick start, the LED still does not flash, consult a Motorola field
11. If, during the quick start, the LED continues to flash, verify that the signal at header
TROUBLESHOOTING THE PROGRAMMER
1. Make sure that all programming sockets (XU7, XU8, and XU9) are empty. Verify
2. If XU9 pin 19 is in the 16- to 17-volt range but not 16.5 Vdc, calibrate V
output of U4 pin 38. Set the oscilloscope to 0.5 microseconds per division. One
cycle per division should be observed, which corresponds to a 7.3 MHz signal. If this
signal is not present, any of the following problems could exist:
the POD command on the host computer:
If signals appear on P2 pin 3 but not on U4 pin 29, check the circuit board
components near location Q3.
If signals do not appear on P2 pin 3, check the serial cable and the host computer’s
serial communications port.
pin 4 to ground. If the LED does not light, it may be defective or installed backwards.
application engineer.
W6 (PA0) goes high when switch S4 is pressed. If it does not go high, check the
Ohm value of resistor R9 and continuity of switch S4. Consult Motorola board repair
if needed.
that the voltage on pin 19 of programming socket XU9 is 16.5 Vdc. If the voltage is
less than 16 volts or greater than 17 volts, the socket may be bad or there may be a
bad circuit-board trace.
troubleshooting procedure described in section B.3.
following these steps:
a. RS-232 connector P2 pin3
b. U4 pin 29
bad crystal
bad resistor
bad capacitor
bad C8A MCU or socket
broken trace or cold solder joint on circuit board
volts).
the signal should be at TTL level (0 to +5 volts).
Y1
R16
C13 or C17
To find such a problem, perform the quick-start
U4
the signal should be at RS-232 level (-5 to +12
M68ICS05KJOM/D
PP
by