3/11/03 Brian CrosbyTech-topic
PIC Micro controllersPIC Micro controllers
3/11/03 Brian CrosbyTech-topic
Microcontroller chips Microcontroller chips
Special purpose computers.– low-cost, small, low-power, embedded
CPUs.Displays and Controls
– LCD Display status
– Input devices Sensors and key pads
3/11/03 Brian CrosbyTech-topic
Micro-controllerMicro-controller
Used in– appliances, automobiles, machinery,cell
phones, digital cameras, etc.Examples
– Motorola 6811 and Intel 8051 – Microchip’s "PIC microcontrollers"
3/11/03 Brian CrosbyTech-topic
Criteria for choosing a Criteria for choosing a micro-controllermicro-controller
availabilitypriceease of useprice of development toolssupportfeatures
3/11/03 Brian CrosbyTech-topic
BackgroundBackground
General Instruments– PIC 1650, Mother of all PIC chips– peripheral for their CP1600 microprocessor
PIC– Programmable Intelligent Computer
3/11/03 Brian CrosbyTech-topic
PackagesPackages
PINS– 8 to 40
I / O– 6 to 40
Power– Low consumption
3/11/03 Brian CrosbyTech-topic
Two Types of Two Types of Language Language
C programming– for a microcontroller not always ANSI-C– Not compatible with all PICS– Memory and Space
Assembly– 34 commands– Less space– Time consuming
3/11/03 Brian CrosbyTech-topic
PIC16F877PIC16F877
3/11/03 Brian CrosbyTech-topic
FeaturesFeatures
Timers– 8bit and 16bit timer/counter
Two Capture, compare modules– cap>[email protected], comp>16bit@200ns
PWM– 10bit
Analog / Digital Converter– 10bit multi-channel
3/11/03 Brian CrosbyTech-topic
Where to buy PICs etc:Where to buy PICs etc:
Digi-Key: wide range of components, including PICs
Mouser Electronics: wide range of components
Arrow: smaller range of components, but often cheaper than Digi_Key or Mouser
Allied Electronics: another mail-order shop Jameco: and yet another mail-order shop
3/11/03 Brian CrosbyTech-Topic
For More InformationFor More Informationon PIC’son PIC’s
Check out:
www.microchip.com
3/11/03 Brian CrosbyTech-topic
Any Question?????Any Question?????