Renesas Emulator Debugger M16C PC4701 Instrukcja Użytkownika Pobierz pdf (Strona 45)

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6.3 Operation Differs from That of Actual MCUs

(1) Cannot Reset from the Target System

Set the time for starting up (0.2 Vcc to 0.8 Vcc) 1 µs or less.

(2) Data Values of RAM Area at Power-on are Different

For this product, 04h is written into the RAM area at power-on. Therefore, the data values are different

from those of an actual MCU.

(3) The A-D and D-A Conversion Values are Different from Expected Values

Because a pitch converter board and other devices are used between the evaluation MCU and the

target system, some characteristics are slightly different from those of the actual MCU. Therefore,

be sure to evaluate your system with an evaluation MCU. Before starting mask production, evaluate

your system and make final confirmation with an CS (Commercial Sample) version MCU.

(For details, refer to "1.1 Note on Differences between the Actual MCU and Emulator" on page 14.)

(3) Errors Occur When Starting Up the Emulator Debugger

(When the target system is not connected)

Table 6.3 Checkpoints of errors when starting up emulator debugger (target is not connected)

Error

Target MCU runaway.

Communication ERROR

Data is not sent to the target

Target system is not constructed properly

The version of M3T-PD30 and the firmware

on the target are not same

Target MCU cannot be reset

Target MCU is in "HOLD" state

Target clock is stopped

Checkpoint

Check that when the emulator debugger is started up,

custom command RESET_10 is executed and the second

line of the display shows "RESET_10 (Ver.2) is done!".

Otherwise, restart the emulator debugger.

See "1.1 Note on When Starting Up the Emulator

Debugger" (page 11).

Check that 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 "4.2 Downloading Firmware" (page 34).

(2) Recheck that the connection between the PC4701

and this product.

See "3.3 Connecting the PC4701 and Emulation

Pod" (page 27).

Download the proper firmware.

See "4.2 Downloading Firmware" (page 34).

The program may be uncontrollable in areas where

memory is not allocated. Recheck that the map setting.

See "1.1 Notes on MAP References and Settings"

(page 11).

(1) The MCU is either in the stop mode or wait mode.

Either reset the MCU or cancel the mode with an

interrupt.

See MCU specifications.

(2) The program may be uncontrollable in areas where

memory is not allocated. Recheck that the map setting.

See "1.1 Notes on MAP References and Settings"

(page 11).

Check the oscillator in the emulation pod is oscillating

properly.

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