Midrange PIC Assembler Tutorials

This tutorial series introduces the midrange (14-bit) PIC architecture, peripherals, and assembly language, building on the material covered in the baseline lessons.

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Click on the lesson title to read each tutorial (PDF).
Right-click the source code links to save the code for that tutorial to your PC.

1: Basic Digital Output
Introducing the PIC12F629
Using delay loops to flash an LED
Updated 21/3/10 L1 source

2: Writing Modular Code
Subroutines, relocatable modules, memory banking and paging
Updated 22/11/09 L2 source

3: Reading Switches
Internal pull-ups, reading and debouncing simple switches
Updated 25/12/08 L3 source

4: Timer0
Using Timer0 for event timing, delays, debouncing and as a counter
Updated 4/7/09 L4 source

5: Assembler Directives and Macros
MPASM expressions, macros and conditional assembly
Updated 8/8/09 L5 source

6: Introduction to Interrupts
Interrupt service routines, timer and external interrupts, debouncing
Updated 8/8/09 L6 source

7: IOC, Sleep Mode and the Watchdog Timer
Using interrupt-on-change, sleep mode, and the watchdog timer
Updated 15/8/09 L7 source

8: Reset, Power and Clock Options
Oscillator (clock) modes, power-on reset and brown-out detection
Updated 15/8/09 L8 source

9: Analog Comparators, part 1
Using the single comparator module and programmable voltage reference
on the PIC12F629
Updated 25/10/09 L9 source

10: Enhanced Features of the PIC16F684
Introduction to the PIC16F684, and some of its enhanced features,
including additional internal oscillator modes and ultra low-power wake-up
Added 25/10/09 L10 source

11: Analog Comparators, part 2
Using the dual comparator module and programmable voltage reference
on the PIC16F684
Added 7/11/09 L11 source

12: Driving 7-Segment LED Displays
Single and multiple 7-segment displays, interrupt-driven multiplexing,
lookup tables and binary-coded decimal (BCD)
Added 26/11/09 L12 source

13: Analog-to-Digital Conversion
Using the analog-to-digital converter (ADC) module,
ADC interrupts and operation in sleep mode
Updated 21/3/10 L13 source

14: Arrays and Long Integer Arithmetic
Indirect addressing using FSR, multi-byte addition and subtraction
and 8x8-bit and 8x16-bit multiplication
Added 5/4/10 L14 source

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