PIC 16F877 I2C Introduction

Most of PIC controllers specially 16F and 18F series have onchip I2C Modules. In this section of tutorial we are going to talk about PIC16F877A I2C Module and all derivatives of PIC has same module i.e. similar registers to configure. Lets take a look at the important registers which are to be configured to make I2C modules active and running on a PIC microcontroller.

For I2C master mode, there are three important register are to be configured

  • SSPSTAT: MSSP Status Register
  • SSPCON1: MSSP Control Register 1
  • SSPCON2: MSSP Control Register 2

SSPSTAT:

SSPCON1:

SSPCON2:

Baudrate Generator

In I2C Master mode, the Baud Rate Generator (BRG) reload value is placed in the lower 7 bits of the SSPADD register (Figure 9-17). When a write occurs to SSPBUF, the Baud Rate Generator will automatically begin counting. The BRG counts down to 0 and stops until another reload has taken place. In I2C Master mode, the BRG is reloaded automatically.

PIC16F877A - SSPADD as baudrate generator
Forum Activity
pravin_35 Avatar
Posted By pravin_35
Thu Jul 31 2014, 01:49 AM
attach is the code for lcd may be need a little ch...
majoka Avatar
Posted By majoka
Wed Jul 30 2014, 02:45 PM
@ sermeteraythank you for sharing your experience ...
majoka Avatar
Posted By majoka
Wed Jul 30 2014, 02:38 PM
@ Peter_ParkerHC06 by default baud rate is 9600try...
majoka Avatar
Posted By majoka
Wed Jul 30 2014, 02:25 PM
attach is the code for lcd may be need a little ch...
majoka Avatar
Posted By majoka
Wed Jul 30 2014, 02:21 PM
@ pravin_35both compilers are almost sameif you ha...
pravin_35 Avatar
Posted By pravin_35
Wed Jul 30 2014, 07:38 AM
http://extremeelectronics.co.in/pic16f877a-tutoria...
NexusRevZ Avatar
Posted By NexusRevZ
Wed Jul 30 2014, 02:31 AM
Ok, I have edited the code, it's updated above wit...
NexusRevZ Avatar
Posted By NexusRevZ
Wed Jul 30 2014, 02:10 AM
Oh tahnk you so much for the reply. I will do imme...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Jul 30 2014, 01:56 AM
You cannot move and read data from EEPROM immediat...
pravin_35 Avatar
Posted By pravin_35
Wed Jul 30 2014, 12:39 AM
Remove all power connections to the circuit at the...

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NexusRevZ
Tue Jul 29 2014, 09:32 PM
Anyone good in Asm lang?
ajay_bhargav
Mon Jul 28 2014, 12:34 AM
@ Anshu Raj sorry we do not take such requests.
Sun Jul 27 2014, 12:23 AM
Anshu Raj
sir plz send the automatic collage alram bells in 2 hrs bells ring. For microcontroller programme plz sir
ajay_bhargav
Thu Jul 24 2014, 01:06 AM
@R.ABHISHEK where? I dont see it. is it in forum?
Wed Jul 23 2014, 05:49 AM
R.ABHISHEK
sir,pls message on microcontroller 8051 assambly language new program
Wed Jul 23 2014, 05:47 AM
R.ABHISHEK
sir,pls message on 8051 microcontroller assambly language program new quastions
ajay_bhargav
Tue Jul 22 2014, 09:18 AM
@Pragya Android application is taken from google play. Only Author has its source with him. Application is only used in this project.
Tue Jul 22 2014, 04:58 AM
Pragya
plz send me 8051 code and android code for android based device controller via Bluetooth .Here in this project I am using Hc-06 Bluetooth module
Thu Jul 10 2014, 09:57 AM
Caleb
plz someone mail me the source code for that project
Thu Jul 10 2014, 09:57 AM
Caleb
http://www.8051projects.net/download-d188-control-your-pc-tv-remote.html

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ismaelfogaca
Thu Jul 31 2014, 10:50 AM
NexusRevZ
Tue Jul 29 2014, 09:29 PM
kritz22
Mon Jul 28 2014, 10:33 AM
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Imran.pk
Fri Jul 25 2014, 07:50 PM
PavanKh
Fri Jul 25 2014, 12:56 AM
vinosentinal
Mon Jul 21 2014, 08:28 PM
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Sun Jul 20 2014, 05:38 PM

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