[ID850QB] Setting Debug Environment

An error message is displayed during the startup of the ID850NWC, and the ID850NWC cannot be started.

The following messages may be displayed.

-	"F0100: Cannot communicate with in-circuit emulator. Check if device driver for interface board is correctly installed."
-	"F03a0: Target power is OFF."
-	"F0c70: DCU cannot be accessed."
-	"Ff603: ID code is wrong."

Check the following.

If "F0100: Cannot communicate with in-circuit emulator. Check if device driver for interface board is correctly installed." is displayed

[Check]
Check if the device driver for the IE-V850E1-CD-NW has been correctly installed and recognized by the host machine.

[Action]
If the device driver is not correctly installed, it must be re-installed.
Refer to the IE-V850E1-CD-NW User's Manual for the installation procedure.

If "F03a0: Target power is OFF." is displayed

[Check]
Check if the interface signals of the IE-V850E1-CD-NW are correctly connected.

In particular, check the following:

• Are the pin numbers correct?
• Is VDD connected in accordance with the specification of the device?
• Are the flash mode pins (such as FLMD0) connected in accordance with the specification?

[Action]

• For pin layout, check the wiring by referring to the IE-V850E1-CD-NW User's Manual.
• Connection of VDD differs depending on the device because the type of buffer power supply (driving power supply) of the N-Wire pins, such as EVDD and BVDD, differ. Check the wiring by referring to the User's Manual of the device used.
• Be sure to wire the flash mode pin(s) (such as FLMD0) of the device used, if any.

If "F0c70: DCU cannot be accessed." is displayed

[Check]
Check if the interface signals of the IE-V850E1-CD-NW are correctly connected.

In particular, check the following:

• Are the pin numbers correct?
• Is the clock supplied in accordance with the specification of the device?
• Are the flash mode pins (such as FLMD0) connected in accordance with the specification?

[Action]

• For pin layout, check the wiring by referring to the IE-V850E1-CD-NW User's Manual.
• Check setting of the frequency (set in the Configuration dialog box) by referring to the ID850NWC User's Manual.
• Be sure to wire the flash mode pin(s) (such as FLMD0) of the device used, if any.

If "Ff603: ID code is wrong." is displayed

[Check]
Check the following items.

• Is the ID code correct?
• Are the flash mode pin(s) (such as FLMD0) connected in accordance with the specification?

[Action]

• The ID code is a code for security, for which any value can be set.
  For the specification, refer to the User's Manual of the device or the IE-V850E1-CD-NW User's Manual.
  In particular, check if bit 7 of address 0x79 is 1 (N-Wire emulation specification).

  [Caution]
  Note that, if you forget the ID code, the flash memory must be erased (initialized) using the flash memory programmer.

• Be sure to wire the flash mode pin(s) (such as FLMD0) of the device, if any.

[Reference]
The following items can be tested by the N-Wire Checker.
Check if the interface is correct.

• Authentication test of ID code
• Checking frequency of DCK
• Checking waveform of DDI (check the DDI pin using a measuring instrument.)
• Checking access to registers of on-chip debug unit
• Checking access to registers of CPU

N-Wire Checker is installed when the ID850NWC is installed.
Start up the N-Wire Checker as follows:

Select [All Programs] -> [NEC Tools32] -> [N-Wire Checker] from the [Start] menu

For how to use (test method), refer to the ID850NWC User's Manual.

Can N-Wire Card (IE-V850E1-CD-NW) be used with a desk-top PC?

N-Wire CARD (IE-V850E1-CD-NW) can be used with a desk-top PC by using a general-purpose PC card adapter of PCI.
Note, however, that some general-purpose PC card adapters of PCI do not operate.
The operation of the following card adapters has been confirmed.

Manufacturer	Product Name	PCMCIABus	Controller	Number of Slots
MediaFocus	Card-Exchanger F	16bit	Ricoh R5C476II	2
MediaFocus	Card-Exchanger NR	16bit�CCardBus	TI 1420/1211	1