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Connection Error: Working with other of the E1 or E20 emulator

Latest Updated:10/16/2013

Question:

I’m using the E1 or E20 emulator to debug or write to an RL78 family MCU. Although no problem is encountered when working with some of the E1 or E20 emulator, a connection error occurs when working with other of the E1 or E20 emulator, making it impossible to connect a debugger or write.

Answer:

First, execute self-check on the E1 or E20 emulator.
If this results in an error, contact your distributor and ask for repair.
If no error occurs in the self-check, examine the connection circuit to see if it conforms to the recommended circuit.
Especially, check to see if the EMVDD pin of the E1 or E20 emulator is supplied with the drive power supply (VDD or EVDD) of the device TOOL0 pin.
Suitable Products
E1 [R0E000010KCE00]
E20 [R0E000200KCT00]