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V850ES/Jx3H – Plug it!
9. Troubleshooting
In some cases it might happen that the connection to the V850ES/Jx3-H - Plug it! board can not be
established. This can be caused by the following three situations:
•
Wrong security ID: The security ID is required to prevent the FLASH memory of the 70F3760
microcontroller from being read by an unauthorized person. The security ID is located in the internal
flash memory at addresses 0x0070-0x0079 of the 70F3760 microcontroller. The IAR C-SPY
debugger starts only when the security ID that is set during debugger start-up and the security ID
set at addresses 0x0070 to 0x0079 do match. In the above mentioned case it is necessary to erase
the internal flash memory of the 70F3760 microcontroller to restore the security ID. Details about
erasing and programming the internal flash memory of the 70F3760 are described in
"Flash Programmer WriteEZ1"
•
Wrong Emulator Driver: Make sure that the driver in the category "Debugger" of the project
options menu is set to "MINICUBE". After this select the category "MINICUBE" down below and tick
the box "Use MINICUBE2 (MINI2)" in order to use the right driver settings for the
V850ES/Jx3-H - Plug it! board.
•
Wrong Oscillator Frequency: Make sure that the clock settings in the Emulator Hardware Setup
fit to the used oscillators on the board. In case of V850ES/Jx3-H - Plug it! the main oscillator
frequency is 6 MHz with multiply rate 8. The sub-oscillator frequency is 32.768 kHz.
Figure 30: IAR C-SPY debugger
User's Manual U19647EE2V0UM00
chapter 10
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