Document Reference No.: FT_000327
Vinculo Development Module Datasheet Version 1.0
Clearance No.: FTDI#173
5 Debugger Interface
The purpose of the debugger interface, J8, is to provide access to the VNC2 silicon/firmware debugger.
The debug interface can be accessed by connecting a VNC2_Debug_Module to the J8 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 accessed through a GUI 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 IDE may be downloaded from http://www.ftdichip.com/Firmware/V2TC/VNC2toolchain.htm
The Debugger Interface, and how to use it, is further described in the following applications Note
Vinculum-II Debug Interface Description
5.1 Signal Description - Debugger Interface
Table 5.1 shows the signals and pins description for the Debugger Interface pin header J8
Name
Pin No.
Name
On PCB
Type
Description
DBG
I/O
-
Debugger Interface
IO0
-
J8-1
[Key]
Not connected. Used to make sure that the debug
module is connected correctly.
J8-2
J8-3
GND
PWR
Module ground supply pin
GND
Input
Can be used by an external device to reset the
VNC2. This pin is also used in combination with
PROG# and the UART interface to program
firmware into the VNC2.
RESET#
RST#
J8-4
This pin is used in combination with the RESET#
pin and the UART interface to program firmware
into the VNC2.
Input
PROG#
5V0
PRG#
VCC
J8-5
J8-6
PWR Input
5.0V module supply pin. This pin can be used to
provide the 5.0V input to the Vinculo from the
debugger interface when the Vinculo is not
powered from the USB connector (VBUs) or the
CN1
Table 5.1 - Signal Name and Description – Debugger Interface
Note: # defines active low signals.
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