Document Reference No.: FT_000165
V2DIP1-64 VNCL2-64Q Development Module Datasheet Version 1.01
Clearance No.: FTDI# 154
3.8 Debugger Interface
The purpose of the debugger interface is to provide access to the VNC2 silicon/firmware debugger. The
debug interface can be accessed via the appropriate pin on the DIL connector or more easily, it can be
accessed by connecting a debug module to the J3 connector. This debug module will give access to the
debugger through a USB connection to a PC via the Integrated Development Environment (IDE). The IDE
is a graphical interface to the VNC2 software development tool-chain and gives the following debug
capabilities through the debugger interface:
Flash Erase, Write and Program.
Application debug - application code can have breakpoints, be single stepped and can be halted.
Detailed internal debug - memory and register read/write access.
The Debugger Interface, and how to use it, is further described in the following applications Note
3.8.1 ignal Description - Debugger Interface
Table 3.10 shows the signals and pins description for the Debugger Interface pin header J3
Name
Pin No.
J3-1
J3-2
J3-3
J3-4
J3-5
J3-6
Name
IO0
-
GND
RESET#
PROG#
5V0
On PCB
DBG
[Key]
GND
RST#
PRG#
VCC
Type
I/O
-
PWR
Input
Input
PWR Input
Description
Debugger Interface
Not connected. Used to make sure that the debug
module is connected correctly.
Module ground supply pin
Can be used by an external device to reset the
VNCL2. This pin is also used in combination with
PROG# and the UART interface to program
firmware into the VNC2.
This pin is used in combination with the RESET#
pin and the UART interface to program firmware
into the VNC2.
5.0V module supply pin. This pin can be used to
provide the 5.0V input to the V2DIP1-64 from the
debugger interface when the V2DIP1-64 is not
powered from the USB connector (VBUs) or the
DIL connector pins J1-12, J1-13 and J1-19 and
J3-6.
Table 3.10 - Signal Name and Description – Debugger Interface
Copyright ? 2010 Future Technology Devices International Limited
17
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