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E30A Emulator User's Manual
5. Troubleshooting
5.1 How to Solve a Trouble
The following describes how to solve a trouble when any problem occurs before the emulator debugger starts after the
emulator and the user system have been powered on. For the latest information on the emulator and emulator debugger, visit
Renesas Electronics' development environment website (http://www.renesas.com/tools).
5.1.1 The SAFE LED Remains Off
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The USB cable may not be connected properly. Check the condition of the cable connection.
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The E30A may not be powered on. Check the condition of the AC adapter connection and that of the power switch.
5.1.2 The SAFE LED Keeps Flashing
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The USB cable may not be connected properly. Check the condition of the cable connection.
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The USB driver may not be installed properly. Reinstall the USB driver.
5.1.3 The Emulator Debugger Cannot Be Activated
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Check whether the E30A and the user system are connected properly.
The MCU's NSD pin and the E30A connector may be connected by an excessively long wiring.
The MCU's NSD pin may not be pulled high with a 4.7 kΩ resistor.
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Check the Emulator tab of the Init dialog to see if the clock is set up properly.
Make sure the value entered for the Xin frequency is the same as that of the user system.
Check that Generated is selected.
Make sure the values entered for the PLL frequency and CCR set value are the same as those set in the user program.
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If connected with coaxial cable, you need to reset the user system (or power on the user system) after a dialog is displayed
by clicking the OK button in the Init dialog.
R20UT0422EJ0501 Rev.5.01
Mar 15, 2016
5. Troubleshooting
Page 48 of 65
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