Renesas Single-Chip Microcomputer M38C89T-ADF Instrukcja Użytkownika Pobierz pdf (Strona 74)

M38000T2-CPE User’s Manual 5. Troubleshooting

R20UT0213EJ0600 Rev.6.00 Page 74 of 82

Oct. 20, 2010

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

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 80 81 82

Komentarze do niniejszej Instrukcji

Brak uwag

Renesas Single-Chip Microcomputer M38C89T-ADF Instrukcja Użytkownika Strona 74

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Networking Renesas Single-Chip Microcomputer M38C89T-ADF