Renesas Single-Chip Microcomputer M37531T-ADS User Manual download pdf (Page 32)

M38000T2-CPE User’s Manual 2. Setup

REJ10J0301-0400 Rev.4.00 March 01, 2006

Page 32 of 78

2.8.2 If an Error is Detected in the Self-check

Table 2.3 lists how to remedy the troubles if the target status LED display is abnormal in the self-check. When an error is

detected, shut off the emulator and the user system and follow the steps in the Table 2.3.

Table 2.3 Error LED display in the self-check and how to remedy it (1/2)

: 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.

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 77 78

No comments

Renesas Single-Chip Microcomputer M37531T-ADS User Manual Page 32