#include <16F877.h> #device adc=8 #FUSES NOWDT ,XT #use delay(clock=4000000) void main() { set_tris_a(0xff); set_tris_b(0x00); setup_adc_ports(NO_ANALOGS); setup_adc(ADC_OFF); output_b(0x00); while(true){ if(!input(pin_a0)){ output_b(0xff); delay_ms(100);} if(!input(pin_a1)){ output_b(0x00); delay_ms(100);} } }
Basic input-output For CSS Compiler Read More »
Frustration! Have you ever experienced frustration when you didn’t have a PIC programmer handy? Your programmer breaks or you loaned it out to your buddy and you sit just twiddling your thumbs. It left you feeling powerless because you couldn’t test that great idea, didn’t it? If so, you share experiences similar to mine. It
The Theory of PIC Programming Read More »
I apologise for the tardiness of this article; for the next little while, I will probably have to scale them back to once every two weeks or so. The reason is that I am proof reading the “Galley Proofs” of my new book, “PC PhD”. This book discusses the PC’s hardware and how to develop
Button Debouncing using PIC16F84 Microcontroller Read More »
In the past two weeks, I discussed the prerequisits for starting your first application and the issues surrounding PICMicro programmers and what to look for. With this background, I am now ready to present what I think is a good first application for somebody learning about the PICMicro. This circuit is not as simple as
PICMicro Project using PIC16F84 Microcontroller Read More »
A tutorial on the 12F675 PIC microcontroller which shows you how to program and use it with a series of projects starting out with a simple LED flasher and progressing on to more advanced projects. To use the tutorial files you need to have a PIC programmer with an ICSP output connector and the components shown
PIC12F675 Microcontroller Tutorial Read More »
Lecture on “Intro to Microprocessors” using Wilmshurst’s “Designing Embedded Systems with PIC Microcontrollers” Chapter 1, sections 1-3 Topics: What is an Embedded system?, Embedded examples, CISC vs. RISC, Memory: Volitile vs. non-volitile, Memory Organization: Von Neumann vs. Harvard Chapter 1, sections 4-6 Topics: Microcontrollers vs. Microprocessors, Microcontroller families, Microchip Inc. History and background, Table of
PIC16 Microcontrollers Video Tutorial Series Read More »
This experiment uses the push-button to increment the count on the 7-segment display. The count-value is stored in a file and this value is incremented by the program each time the push button is pressed. The count-value is used to look-up a table to pick up the display-value for the 7-segment display. Additional experiments on the website
Counting on the 7-segment display Read More »
#include <16F877.h> #device adc=8 #fuses NOWDT,HS, NOPUT, NOPROTECT, BROWNOUT, NOLVP, NOCPD, NOWRT, NODEBUG #use delay(clock=4000000) #define sw_up pin_a0 // SWITCH UP #define sw_down pin_a1 // SWITCH DOWN INT16 COUNT; int8 A,B,C,D; //int8 segment[10] ={ 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//common anode int8 num[10] ={ 0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x27,0x7F,0x6F};//common cathode 0 1 2 3 4 5 6 7 8 9 // 0 1 2
Seven segment display 4 digit For CSS Compiler Read More »
#include <16F877.h> #fuses XT,NOLVP,NOWDT,NOPROTECT #use delay(clock = 4000000) #use fast_io(A) #use fast_io(B) byte num[5] = {0x00,0x01,0x02,0x04,0x08}; int8 disp,i; void Forward(){ for(i=0; i<=4;i++){ disp =num[i]; output_b(disp); delay_ms(200); } } void Backward(){ for(i=4;i>0;i–){ disp =num[i]; output_b(disp); delay_ms(200); } } void Stop(){ disp =0; output_b(disp); delay_ms(50); } void main(){ setup_adc(adc_off); set_tris_a(0xFF); set_tris_b(0B00000000); stop(); while(true){ if(!input(pin_a0)){ do{ Forward(); }
Stepping Motor Control For CSS Compiler Read More »
