Notes On Using This Product - Renesas R0E521000EPB00 User Manual

R0E521000EPB00 User's Manual

4.5 Notes on Using This Product

Notes on using this product are listed below. When debugging the MCU using this product, be careful about the following
precautions.
Notes on Downloading Firmware:
Before using this product for the first time, it is necessary to download the dedicated firmware (control software
built into the PC7501). Please note that, to do this, it is necessary to start up the PC7501 in maintenance mode.
For firmware download procedures, see "2.7 Downloading Firmware" (page 26). Once the firmware has been
downloaded, the product can be used by simply turning on the power.
Do not shut off the power while downloading the firmware. If this happens, the product will not start up
properly. If power is shut off unexpectedly, redownload the firmware.
Notes on the Self-check:
If the self-check does not result normally (excluding user system errors), the emulation probe may be damaged.
Then contact your local distributor.
Be sure to disconnect the user system before executing the self-check.
Note on Quitting the Emulator Debugger:
To restart the emulator debugger after it ends, always shut power to the PC7501 module off once and then on
again.
Notes on the User System (Power Supply, Order of Powering On):
The emulator's pin VCC is connected to the user system in order to monitor user system voltage. For this
reason, the emulator cannot supply power to the user system. Therefore, provide the user system with a separate
power supply from that of the emulator.
Settings of the POWER selection jumper need to be changed according to the power supply voltage and power
supply condition of the user system.
(1) The voltage of the user system should be 2.7V to 5.5V when the POWER selection jumper is set to the
INT POWER side. Turn ON/OFF the user system and the emulator as simultaneously as possible.
(2) The voltage of the user system is less than 2.7V, set the POWER selection jumper to the EXT POWER
side. When the POWER selection jumper is set to the EXT POWER side, this product consumes max. 500
mA of electrical current from the user system. For details about the POWER selection jumper, refer to
"2.10.2 Setting the POWER Selection Jumper" (page 39).
Before powering on your emulator system, check that the host machine, the emulator, the converter board and
user system are all connected correctly.
When the emulator debugger starts up, check the target status LEDs on the emulator to see if this product is
ready to operate.
REJ10J0844-0400 Rev.4.00 October 16, 2007
Page 77 of 88
IMPORTANT
4. Hardware Specifications