Microchip Technology DM164123 数据表
PICDEM™ System Management
©
2007 Microchip Technology Inc.
DS41304B-page 11
1.5.2
Real-Time Clock: Address 0xA2
The Real-Time Clock function reads and writes actual time data on the PIC16F886.
The time base is generated using a 32.768 kHz external Timer1 crystal. This time is
automatically refreshed and can be changed in the GUI software.
The time base is generated using a 32.768 kHz external Timer1 crystal. This time is
automatically refreshed and can be changed in the GUI software.
FIGURE 1-3:
REAL-TIME CLOCK
1.5.3
Analog-to-Digital Converter (ADC): Address 0xA4
The ADC function provides Analog-to-Digital conversion of the voltage drop through
potentiometer RP200. As you turn the potentiometer, the voltage indicator should
change. Jumper JP202 must connect to the middle pin and the pin labeled “POT.”
potentiometer RP200. As you turn the potentiometer, the voltage indicator should
change. Jumper JP202 must connect to the middle pin and the pin labeled “POT.”
FIGURE 1-4:
ANALOG-TO-DIGITAL CONVERTER (ADC)