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(2) Using the Oscillator Circuit on the Target System
To operate the compact emulator with the oscillator circuit on the target system, construct the
oscillator circuit as shown in Figure 3.1 in the target system and input the oscillator output at 50%
duty (within the operating range of the evaluation MCU) into the X
pin. And the X
pin should
IN
OUT
be open. It is same for sub-clock oscillator (X
and X
).
CIN
COUT
Figure 3.1 External oscillator circuit
Make note of the fact that in the oscillator circuit shown in Figure 3.2 where a resonator is connected
between the X
and X
pins, oscillation does not occur because an emulation circuit is used
IN
OUT
between the evaluation MCU and the target system. It is same for sub-clock oscillator circuits (X
CIN
and X
).
COUT
Figure 3.2 Circuit in which oscillation does not occur (same for X
-X
)
CIN
COUT
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Troubleshooting
