An overview of the PIC MCUs and dsPIC DSCs capabilities in embedded programming

1. Microchip’s PICs
8 & 16 bit
Guido Ottaviani
AKA: Guiott
guido@guiott.com
www.officinerobotiche.itwww.guiott.com

2. MCU vs CPU

3. Harvard Architecture

4. Programming models
Direct programming
Real Time Operating System
High level Operating System

5. Latency & Response Time
Synchronization
micro seconds timing
Real time operations

6. Microchip controllers family

7. www.microchip.com/maps/microcontroller.aspx

8. www.microchip.com/pagehandler/en-
us/products/picmicrocontrollers

9. Development Boards

10. Documentation

11. Buy & sample

12. 8-bit Family

13. PIC18F Peripherals

14. 16-bit Performance Options

15. dsPIC33 & PIC 24 Peripherals

16. 8-bit PICs Interrupt
PIC 12-16
PIC 18

17. 16-bit PICs Interrupt

18. Peripherals + Interrupts

19. What Defines Low Power?

20. Power Saving Techniques
Mode Core FLASH Peripherals
Voltage
Regulator
RAM
Savings
over RUN
Mode
Of Note
Run ON ON ON ON ON 0 Full current consumption.
Doze
Slower
Clock
Rate
Slower
Clock
Rate
ON ON ON 25-65%
CPU is slowed down to as much as
1/128 of its Run mode speed.
Idle OFF OFF ON ON ON 0,7
Use in moments when code execution
is not needed
Sleep OFF OFF
OFF - Except for
peripherals with
their own clock
ON ON 70% - 85%
RAM and registers maintained.
Latencies of up to tens of
microseconds are expected.
Low
Voltage
Sleep
OFF OFF
OFF - Except for
peripherals with
their own clock
Low Voltage
Enabled
ON 0,9
For longer-term sleep than Sleep,
when longer latencies are acceptable.
Deep
Sleep
OFF OFF OFF OFF OFF 97%+
Most of the MCU is OFF except for
maybe a timer, interrupt handling, and
a Real Time Clock and Calendar.

21. Integrated Development Environment

22. www.microchip.com/developmenttools

23. MplabX IDE

24. Development Tools Data Flow

25. Debugging Techniques

26. ICD3

27. Programmers / Debuggers
38€
158€
395€

28. Debugger comparison

29. Useful Links
•www.microchip.com
•microchip.wikidot.com
•www.officinerobotiche.it
•www.roboitalia.com
•www.droids.it

30. On Line Shops
•www.microchipdirect.com
•www.robot-italy.com
•www.robot-domestici.it
•www.watterott.com
•www.olimex.com
•www.coolcomponents.co.uk
•it.rs-online.com
•it.farnell.com
•www.mouser.it
•www.digikey.it

31. Thank you
Guido Ottaviani
AKA: guiott
E-mail: guido@guiott.com
Web: www.guiott.com
code: code.google.com
github.com/guiott