Renesas Single-Chip Microcomputer M37531T-ADS User Manual download pdf (Page 72)

M38000T2-CPE User’s Manual 5. Troubleshooting

REJ10J0301-0400 Rev.4.00 March 01, 2006

Page 72 of 78

5.2 When the Emulator Debugger Does Not Start Up Properly

(1) When the LEDs of the M38000T2-CPE Do Not Display Normally

Table 5.1 Errors LEDs show and their checkpoints (2)

: ON

: OFF

: Blinking

Example

POWER CLOCK RESET RUN

Problem & Remedy

The emulator system is not working properly.

- If the SAFE LED is blinking, startup the emulator debugger and download the

firmware.

- Check that the emulator is powered.

- The emulator may be damaged. Contact your local distributor.

The user system is not powered or the target status cables are not connected properly.

- Check that the emulator is powered.

- Check that the VCC and GND clips of target status cables are connected properly.

- Check that the emulator MCU type selection switch is set properly.

- Check that the probe board and the user system are connected properly.

The emulator MCU type selection switch is not set properly.

- Check that the VCC and GND clips of target status cables are connected properly.

- Check that the probe board and the user system are connected properly.

The target status cables are not connected properly.

- Check that the VCC and GND clips of target status cables are connected properly.

The reset command is not executed properly.

- Check that the reset pin is not held "H".

- Check that the "H" output type reset IC is not used in the reset circuit. With this

emulator, the "H" output type reset IC cannot be used.

- Check that the RESET clip of a target status cable is connected properly.

The internal clock ø output is not executed properly.

- Check that the power supply voltage of the user system is within the MCU's specified

range.

- Check that the oscillating frequency of the user system is within the MCU's specified

range.

The reset command cannot be canceled properly.

- Check that the reset pin is not held "L".

- Check that the pullup resistor of about 10 k is connected to the reset circuit.

Others

The emulator system is not working properly.

- The emulator may be damaged. Contact your local distributor

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