I2C and SPI help in PIC16F877A using hitech C

[CyrusHong]

Hi! I'm new to microcontroller and Hitech C, could anyone give me a guide in how to set up the register or setting (such as PIR2, SSPSTAT.... ) needed to use the I2C or SPI serial interfacing? A sample would be preferably, thank you!

 

[Jinzpaul4u]

Re: I2C and SPI help needed in PIC16F877A using hitech C

Hello there,

try these and update me

 

[CyrusHong]

Re: I2C and SPI help needed in PIC16F877A using hitech C

Thank you, Jinzpaul4u,;-) your code indeed help me have a better understanding about SPI and I2C. However if i wished to use SPI or I2C to link the communication between two microcontroller (pic16f877a), for example when the switch in the master pic is pressed, the green led in slave pic will lights up and when the switch in slave pic is pressed the red led in master pic will light up. Could you teach me how to perform it? By the way, is all the setting in pic16f1784 same with pic16f877a?

 

[mathespbe]

Just study the data sheet and configure it by yourself...

configure one controller as master and another as slave...

Rx the command frm master and turn on the LED if the corresponding command received...

As a newbie, the frst thing you need to understand is the function of each bit in every register...

 

[Jinzpaul4u]

Hello there,

Try these link

http://www.pyroelectro.com/tutorials/spi_master_slave/

here they are using PIC18 MCU.. Do not worry just study the data sheet and configure it by yourself for PIC16 like mathespbe said.

study once and update me.

Best regards,