Mid-Range PIC Assembler Tutorials

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

To get the most out of these lessons, you should purchase the Gooligum baseline and mid-range training and development board, which was designed to complement this tutorial series.

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Free samples

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

Note: PIC12F629 Programming Issues
Workarounds for a couple of issues you may encounter as you work through the first lessons, especially if you are using a PICkit 2 programmer

1: Basic Digital Output Introducing the PIC12F629 Using delay loops to flash an LED Updated 9/9/12	L1 source
2: Writing Modular Code Subroutines, relocatable modules, memory banking and paging Revised 9/9/12	L2 source
3: Reading Switches Internal pull-ups, reading and debouncing simple switches Updated 11/9/12	L3 source
4: Timer0 Using Timer0 for event timing, delays, debouncing and as a counter Updated 13/9/12	L4 source
5: Assembler Directives and Macros MPASM expressions, macros and conditional assembly Updated 10/6/12	L5 source
6: Introduction to Interrupts Interrupt service routines, timer and external interrupts, debouncing Updated 14/9/12	L6 source
7: IOC, Sleep Mode and the Watchdog Timer Using interrupt-on-change, sleep mode, and the watchdog timer Updated 14/9/12	L7 source
8: Reset, Power and Clock Options Oscillator (clock) modes, power-on reset and brown-out detection Updated 14/9/12	L8 source

Additional lessons included with the Gooligum training board

9: Analog Comparators, part 1 Using the single comparator module and programmable voltage reference on the PIC12F629 Revised 22/6/12

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 Revised 26/6/12

11: Analog Comparators, part 2 Using the dual comparator module and programmable voltage reference on the PIC16F684 Revised 28/6/12

12: Driving 7-Segment LED Displays Single and multiple 7-segment displays, interrupt-driven multiplexing, lookup tables and binary-coded decimal (BCD) Revised 1/7/12

13: Analog-to-Digital Conversion Using the analog-to-digital converter (ADC) module, ADC interrupts and operation in sleep mode Revised 5/7/12

14: Arrays and Long Integer Arithmetic Indirect addressing using FSR, multi-byte addition and subtraction and 8x8-bit and 8x16-bit multiplication Revised 17/7/12

15: Timer1 Using Timer1 as a general 16-bit timer/counter, with an external watch crystal, operation in sleep mode, and digital and comparator gate control Revised 27/7/12

16: Timer2 Using Timer2 as a simple 8-bit timer, with period register and postscaler, to generate a specific interrupt time-base Revised 27/7/12

17: CCP, part 1 - Capture and Compare Using the CCP module's capture and compare modes to measure signal and pulse widths and to trigger precisely timed events, including periodic analog sampling Added 1/11/12

18: CCP, part 2 - PWM Using the CCP module's pulse-width modulation (PWM) modes for tasks including tone generation, LED dimming and bi-directional brushed DC motor control Added 6/4/13

Additional lessons are being compiled, and will be emailed to training board or CD purchasers, as they become available.

PDF files are read with free Adobe Reader software.

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