User's Guide

PT7682W/PT7686W-SAOPTC0 HDK User Guide
PTCOM Technology Inc. www.ptcom.com.tw Proprietary & Confidential Information 5
• On Windows 7 and 8, click Device Manager.
• On Windows XP, click the Hardware tab and then Device Manager.
3). In Device Manager, navigate to Ports (COM & LPT) (see Figure 3).
4). A new COM device should appear under Ports (COM & LPT) in Device Manager, as
shown in Figure 3. Note the COMx port number of the serial communication port, this
information is needed to send command and receive logs from the COM port. Virtual
COM port is connected to the board through the UART1 of the chipset, see section 4.5,
“ Extension connectors”. The mbed Serial Port (UART1) is applied to flash the board
and log the outputs.
Figure 3. COM port associated with the PT7682W/PT7686W-SAOPTC0 HDK
2.3 Configuring the HDK flash mode
The PT7682W/PT7686W-SAOPTC0 HDK is embedded with 2MB flash memory. The
boot options are either from the Flash memory or from the UART port.
To update the firmware on the PT7682W/PT7686W-SAOPTC0 HDK:
1). Set the jumpers J2002, J2003, J2004 and J2007 on.
• In this mode, if the power is on, the board will load ROM code and start the ATE
Daemon or Firmware Upgrade Daemon according to the
PT7682W/PT7686W-SAOPTC0 Flash Tool’s behavior on the PC. A message "ccc" is