MAX 10 Plus User
Manual
30
May 31, 2019
Figure 3-24 Connections between 2x10 ADC Header, Potentiometer, On-board Microphone
and MAX 10 FPGA
3.4.12
Potentiometer
Short pin 1 and pin 2 of J12 will select potentiometer for providing adjustable voltage to the
channel 8 of FPGA ADC2.
3.4.13
On-board Microphone
The board provides an on-board microphone for audio applications. Short pin 1 and pin 2 of J13 to
select on-board microphone to be connected to the channel 7 of FPGA ADC2. The output audio
signal from on-board microphone will be pre-amplified by audio operational amplifier OPA1612,
then fed into the FPGA ADC
shows the connection of on-board microphone and MAX
10 FPGA.
3.4.14
PS/2 Serial Port
The MAX 10 Plus comes with a standard PS/2 interface and a connector for a PS/2 keyboard or
mouse.
shows the connection of PS/2 circuit to the FPGA. Users can use the PS/2
keyboard and mouse on the MAX 10 Plus simultaneously by a PS/2 Y-Cable, as shown in
. Instructions on how to use PS/2 mouse and/or keyboard can be found on various educational
websites. The pin assignment associated to this interface is shown in
Note: If users connect only one PS/2 equipment, the PS/2 signals connected to the FPGA I/O
should be “PS2_CLK” and “PS2_DAT”.