Microchip Technology DM330022 用户手册
Hardware
© 2009 Microchip Technology Inc.
DS70610A-page 27
3.4
USER INTERFACE HARDWARE
The dsPICDEM MCSM Development Board consists of the following push buttons,
LEDs and potentiometers:
• One push button
• One potentiometer
• Eight PWM LEDs
• One power-on status LED
• Two USB LEDs
• One Fault LED
• Device Reset push button
LEDs and potentiometers:
• One push button
• One potentiometer
• Eight PWM LEDs
• One power-on status LED
• Two USB LEDs
• One Fault LED
• Device Reset push button
TABLE 3-7:
INDICATORS AND HUMAN INTERFACES
Label
Hardware Element Description
S1
Push button; this push button is connected to a port pin. When momentarily
pressed, the switch connects the respective port pin to Ground.
pressed, the switch connects the respective port pin to Ground.
POT1
10 k
Ω
potentiometer; it is connected to analog input pin.
RESET
Push button; this push button, when pressed, causes a device Reset.
D1
USB communication indicator, which indicates the device has been detected.
D2
USB bus indicator, which indicates that the device is connected to the USB bus.
D3-D10
LEDs, which indicate the PWM pin status. When an LED is ON, the respective
PWM pin is high.
PWM pin is high.
D14
Power-on status LED, which indicates the status of the
+
3.3V regulator.
D15
Fault LED; indicates an overcurrent.