Renesas Single-Chip Microcomputer M37900T2-RPD-E Informacje Techniczne Pobierz pdf (Strona 38)

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Chapter 5. Troubleshooting

When this product does not work properly, check the following.

5.1 When the Emulator Debugger Does Not Operate

(1) Errors Occur When Operating the Emulator Debugger

(When the target system is connected)

Table 5.1 Checkpoints of errors when starting up emulator debugger M3T-PD79 (target is

connected)

Error

Communication ERROR

Data is not sent to the target

Target system is not constructed properly

The version of M3T-PD79 and the firmware

on the target system are not same

Target MCU is reset state

Target MCU cannot be reset

Flash ROM erase error occurred

Target clock is stopped

Target MCU is not receiving power

Not connected to target

Cannot connect to target

Target MCU is uncontrollable

Reset target system

Checkpoint

Check all emulator debugger settings, interface cable

connections and switches on the rear of the PC4701

match.

- See the user's manuals of the PC4701 and emulator

debugger.

(1) Download the proper firmware.

- See the user's manuals of the emulator debugger.

(2) Recheck the connection between the PC4701, the

emulation pod and this product.

- See "3.4 Connecting the Emulation Pod Main Unit"

(page 26).

- See user's manual of the M37900T2-RPD-E.

Download the proper firmware.

- See the user's manual of the emulator debugger.

(1) Check the reset pin of the target system is pulled up.

(2) Check the reset pin of the target system has changed

from "L" to "H" level.

(1) If the reset circuit of the target system has a watchdog

timer, disable the timer.

(2) Check power is properly supplied to the target system

and that the target system is properly grounded.

(3) Check your emulator debugger M3T-PD79 is V.2.10

or later.

(4) The flash ROM of the MCU may be worn-out. Contact

your local distributor.

Check the oscillation circuit of the target system is

oscillating properly.

Check power is properly supplied to the target system

and that the target system is properly grounded.

(1) Recheck the connection of the emulation pod and this

product.

- See "3.4 Connecting the Emulation Pod Main Unit"

(page 26).

(2) Recheck the connection of the FLX-64SPB and the

socket.

- See "3.5 Connecting the Target System" (page 28).

(1) Check the program is not accessing to the unused

area.

(2) Check the switch settings of the pod probe.

- See "3.2 Switch Settings" (page 24).

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