PIC w/ spi, i2c & rs232

Started by Andrew Ritchie in Piclist16 years ago

Hi all Just wondering if anyone out there could help me with a little problem I have currently... Basically I want to...

Hi all Just wondering if anyone out there could help me with a little problem I have currently... Basically I want to create a prototype MP3 player using a PIC16F877. This bit is easy - there is heaps of info on the web about how to do this. Where the trouble l


Programming PIC16F877 using C

Started by nibnewux in Piclist15 years ago 20 replies

Are there any members here programming the chip using C? I'm programming the mircocontroller using C and there are some issues...

Are there any members here programming the chip using C? I'm programming the mircocontroller using C and there are some issues I would like to discuss


PIC16F877 Programming Problem

Started by demolitron in Piclist14 years ago 3 replies

Hello, Please forgive me if this question has already been asked. If so please point me to the thread. I have the El...

Hello, Please forgive me if this question has already been asked. If so please point me to the thread. I have the El Cheapo PIC Programmer and accompanying software. I have been programming PIC16F77 devices for quite some time with it, and without any pr


Thermometer + LCDisplay

Started by Eugene Lai in Piclist15 years ago 6 replies

i had constructed thermometer (which using PIC16f84) and LCDisplay (which using PIC16f877). Then how can combine together???? ...

i had constructed thermometer (which using PIC16f84) and LCDisplay (which using PIC16f877). Then how can combine together????


need help

Started by pt2263 in Piclist15 years ago 7 replies

Hi I need help regard a pic16f877 or 16f874 A need the components are needed and the circuit design and the assembly language...

Hi I need help regard a pic16f877 or 16f874 A need the components are needed and the circuit design and the assembly language program to make that pic display the current and voltage measured ( only DC with 1 to 500 V and 1mA to 1A ranges) if amplifiers were used to control


reading program from EEPROM addenum

Started by Michael Millikan in Piclist15 years ago 2 replies

Hi there, I forgot to mention that I am planning on using a PIC16F877 for the application (with a whopping 8k of program...

Hi there, I forgot to mention that I am planning on using a PIC16F877 for the application (with a whopping 8k of program memory). Vecheslav Silagadze _________________________________________________________________ The new MSN 8: advanced junk mail protec


srf04

Started by sreenu_dindi in Piclist15 years ago 3 replies

Hi, I am trying to measure the distance using srf04. I am using ccs compiler. The pic16f877 is unable to recognize the echo.. ...

Hi, I am trying to measure the distance using srf04. I am using ccs compiler. The pic16f877 is unable to recognize the echo.. Though srfo4 is returning an echo, i had verified it with an OScilloscope. my program is main() { int echo_t


Success, Sweet Success - balancing robot using a PIC16f877

Started by haqmaq in Piclist13 years ago

Normally, I would be celebrating with my friends in the RIT robotics club, however, this is the weekend before finals week, and people are...

Normally, I would be celebrating with my friends in the RIT robotics club, however, this is the weekend before finals week, and people are either out of town, asleep, or unavailable. My other friends see it, say, oooh, that is cool, but I don't get the feeling that they understand how much of my heart has gone into it like you'all would. So, without further ado, here is my story (I will po...


Status of MCLR pin

Started by arjanmeameijer in Piclist15 years ago 1 reply

Hallo, I program in a different board than i use the PIC16f877. Must the MCLR pin be connected to the ground or VDD or can it...

Hallo, I program in a different board than i use the PIC16f877. Must the MCLR pin be connected to the ground or VDD or can it be left unconnected?? Thanks, Arjan


PIC18F2220 and age old question (C vs. Assembly)

Started by pakigenius786 in Piclist15 years ago 2 replies

I believe I wrote my question wrong. I wanted to know how programming, as in code and software, the PIC18F2220 is different from...

I believe I wrote my question wrong. I wanted to know how programming, as in code and software, the PIC18F2220 is different from the PIC16F877. LEt's say I want to do lots of math. Which would be better to use, C or Assembly?


program memory

Started by Ramaraju in Piclist15 years ago 2 replies

hello, i am using pic16f877.In one of my application i need more program memory. how i can extend program memory?Any extra circuit...

hello, i am using pic16f877.In one of my application i need more program memory. how i can extend program memory?Any extra circuit is required for that? please give me suggestion. thanx in advance. regards, Ramaraju


LCD Graphic example code

Started by wantoniet in Piclist15 years ago 1 reply

HI, I need a help to inteface a LCD Graphic with a PIC16f877. I did not choose the LCD, but anyone that have an experience...

HI, I need a help to inteface a LCD Graphic with a PIC16f877. I did not choose the LCD, but anyone that have an experience with any it?s welcome!! Regards,


cc5x and a bootloader

Started by rooster_0429 in Piclist14 years ago

I am developing some c code using the cc5x compiler as part of my masters thesis at Tennessee Technological University. I was...

I am developing some c code using the cc5x compiler as part of my masters thesis at Tennessee Technological University. I was hoping someone might be able to help me or point me to an appropriate resource. I am developing a multithreading package for the PIC16F877 and usin


A/D successive channel sampling Tacq requirements.

Started by demolitron in Piclist10 years ago 4 replies

Hello, I am looking at doing some fast ADC conversions and notice that the data sheets specify that CHold is not discharged between samples. ...

Hello, I am looking at doing some fast ADC conversions and notice that the data sheets specify that CHold is not discharged between samples. So if I leave it on the same channel does that mean that the Tacq is much lower? It would depend on how much CHold droops during the conversion. Does anyone know the details of this? I am looking at doing this on a PIC16F877 and also a dsPIC30F3013...


PLC vs PIC

Started by pondindustrial in Piclist14 years ago 35 replies

Hi all, I'm fairly new to PIC microcontrollers and have been experimenting for the last month or so with a PIC16F877. I...

Hi all, I'm fairly new to PIC microcontrollers and have been experimenting for the last month or so with a PIC16F877. I have an extensive background in PLC (ladder logic) and VB programming. Curious, what is the difference in a PLC and a PIC, seems the memory


need help on ISD 4004 !?!?!?!?!?

Started by eng_mohamad86 in Piclist11 years ago

HI, I'm doing my graduation project now on smart home and as a part of my project I've to get a voice confirmation for some orders done using...

HI, I'm doing my graduation project now on smart home and as a part of my project I've to get a voice confirmation for some orders done using the ISD4004 and the PIC16F877 microcontroller. I've read the data sheet, alot of application forms & searched alot of websites for any help but I couldn't find any thing. I tried many shemes and programs but it was of no help. finally I wrote a ...


Pic16f877->RS232->VB6

Started by onmyownja in Piclist14 years ago 2 replies

WANT TO KNOW IF YOU AR USING RS232 FOR INPUTING AND OUPUTING DATA VIA THE MSCOMM PORTS USING VISUAL BASIC , THE INPUT FROM...

WANT TO KNOW IF YOU AR USING RS232 FOR INPUTING AND OUPUTING DATA VIA THE MSCOMM PORTS USING VISUAL BASIC , THE INPUT FROM THE SESOR THROUGH THE MICROCONTROLLER TO THE RS232 WHAT FORM DOES VISUAL INTERPRET AS? MEANING DOES VB SEE ZEROS AND ONES OR CHARACTERS


Memory bank problems?

Started by sirtiffguy in Piclist14 years ago 1 reply

*Pounding headache* Greetings everyone, So heres my stumper of a question... I am using multiple banks of memory (16...

*Pounding headache* Greetings everyone, So heres my stumper of a question... I am using multiple banks of memory (16 bit pointer) in a Pic16f877. I am recieving data serially via interrupt (rda) and heres what i am finding: When a buffer fills up in one


sleep mode

Started by Emmanuel Gonzalez in Piclist15 years ago 8 replies

hi folks...can anyone help me create a code that will put PIC16F877 into sleep for 3 minutes from power startup. i also plan to put...

hi folks...can anyone help me create a code that will put PIC16F877 into sleep for 3 minutes from power startup. i also plan to put a switch to enable or disable sleep when starting-up...thanks a lot Emmanuel A. Gonzalez ________________________________________


Corrupted RTC Data

Started by pondindustrial in Piclist14 years ago 5 replies

Hi group, I recently placed a DS1307 RTC on a breadboard and wired it to a PIC16F877 and started reading data. I was...

Hi group, I recently placed a DS1307 RTC on a breadboard and wired it to a PIC16F877 and started reading data. I was displaying this data on a PC through serial, via VB. Every once in a while (couple of minutes) I would read a mess for the date and time, but ONLY for