Product Name
EK-AI7931HD
Version
A
Doc No
912-13302
Date
2021/12/07
Page
6 / 20
PRODUCT USER GUIDE
www.acsip.com.tw
4)
The FTDI debug board can transfer USB interface to UART interface. Using this debug board can
debug through UART, transmit, and receive a signal form PC.
5)
U67 and U68 are on-board AMICs which can catch voice command.
6)
J75 and J76 are audio speaker connectors which can connect 8ohm/2W speaker to achieve voice
assistant function.
7)
U54/U55/U56 are RGB LEDs and these RGB LED will be controlled by SPIM interface.
8)
CON4 support multifunction GPIO interface, for more detail please refer to “section 4.7”.
2.2.
Installing the FTDI debug board drivers on Microsoft Windows
To configure the EK-AI7931HD:
1)
Ensure the FTDI debug board insert to EK-AI7931HD at U69.
2)
Connect the FTDI debug board to the computer using a micro-USB cable.
3)
Connect a 5V power at EK-AI7931HD CON6 with a micro-USB cable.
4)
Check your PC is X86 or X64 system and download and install FTDI Windows serial port driver
from
(The red block showed the download file at below figure).
5)
If your OS is Windows7 or 10, please open Windows Control Panel then click System and enter
Device Manager.
6)
In Device Manager, navigate to Ports (COM & LPT) (see Figure 3).
7)
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.
Due to the com port numbers (COMx) are different at different PC. In order to check the function of each
com port we can recognize the order of these com ports as Figure 3 showed, the first com port (#1)
means “DSP UART”, the second com port (#2) mean “UART0”, the third com port (#3) mean “UART1”, the
fourth com port (#4) mean “CM33 UART”.
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