I2C Setup problem

Hi Francisco,

here's is my initialization code for I2C0. I also configure UART0 for StdIO. Pls notice the instruction marked in yellow! 

Rgds
aBUGSworstnightmare 

#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/sysctl.h"
#include "driverlib/systick.h"
#include "driverlib/adc.h"
#include "driverlib/rom.h"
#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "utils/uartstdio.h"
#include "driverlib/i2c.h"

...

//
// Set the system clock to run at 40Mhz off PLL with external crystal as
// reference.
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_5 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ | SYSCTL_OSC_MAIN);

//
// Initialize the UART interface
//
// Configure the appropriate pins as UART pins; in this case, PA0/PA1 are
// used for UART0.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);

//
// Initialize the UART standard IO module (prints to Launchpad virtual COM port)
//
UARTStdioInit(0);
//
// Print a string.
//
UARTprintf("UARTStdioInit ...\n");
ROM_SysCtlDelay(2000000);

//
// For this example I2C0 is used with PortB[3:2]. The actual port and
// pins used may be different on your part, consult the data sheet for
// more information. GPIO port B needs to be enabled so these pins can
// be used.
//
// TODO: change this to whichever GPIO port you are using.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);

//
// Select the I2C function for these pins. This function will also
// configure the GPIO pins for I2C operation, setting them to
// open-drain operation with weak pull-ups. Consult the data sheet
// to see which functions are allocated per pin.
//
// TODO: change this to select the port/pin you are using.
//
GPIOPinTypeI2CSCL(GPIO_PORTB_BASE, GPIO_PIN_2); // special I2CSCL treatment for M4F devices
ROM_GPIOPinTypeI2C(GPIO_PORTB_BASE, GPIO_PIN_3);

//
// Configure the pin muxing for I2C0 functions on port B2 and B3.
// This step is not necessary if your part does not support pin muxing.
//
// TODO: change this to select the port/pin you are using.
//
GPIOPinConfigure(GPIO_PB2_I2C0SCL);
GPIOPinConfigure(GPIO_PB3_I2C0SDA);

//
// Initialize the I2C interface to talk to the TCAxxx/TLCxxx . The true
// parameter specifies a I2C speed of 400kbps.
//
//
// The I2C0 peripheral must be enabled before use.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C0);

//
// Enable and initialize the I2C0 master module.
//
ROM_I2CMasterInitExpClk(I2C0_MASTER_BASE, SysCtlClockGet(), true);

//
// Print a string.
//
UARTprintf("I2C running ...\n");
ROM_SysCtlDelay(2000000);

...

Thank you for your help!

I get the same error (#20 identifier "GPIO_PA1_U0TX" is undefined, etc...) if I use GPIOPinConfigure. 

What are you're include-path settings and file search paths? Also check the Predefined symbols!

Everything is like in your images. There is only one difference in the include path:

And now, I get another error...

I tried to add uartstdio.c to the project, but It didn't work. This is what i get when I add this file to the project:

Here is the project with your code if you want to see it

0216.Prueba.rar

For CCS V5.x

From the main menu -- Your current project has a highlight (Bold)

File --> New --> Folder

Link to Alternate Location (Bottom Radio Button)

Browse  --> To folder Containing the UARTSTDIO files etc.

Click OK.

Now a folder with a arrow pointing to the upper left will appear in your project pane.

You need to add a folder as above, as well as the correct path.

When you look at your project pane -- the left one. The "Includes" folder should clearly have a path from which the path to the utils directory makes sense.

In my projects I move the specialized drivers to my project group folder and then add a path and a folder to there...

The my include is something like this...

#include "LocalDrivers/uartstdio.h"

...and, I have my folder link to that folder

I did everything but i still get this error

Maybe I did something wrong but I don't know what...

6253.Prueba2.rar

Fixed some typos in the above -- sorry.

Thank you so much for your help ;-)

I finnally fix it with your help and adding this code I found in a StellarisWare example

//*****************************************************************************
//
// The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************
#ifdef DEBUG
void
__error__(char *pcFilename, unsigned long ulLine)
{
}
#endif

Thank you again!

De nada mi amigo. No hay problema.

You're welcome! No problem -- just remember to help others when you can.

De donde eres?

The routine to help find the error does help from time to time. ;-)

I'm from Spain!

I'll try to help the community :-D

I have tentative plans to visit Barcelona in early spring. I will wave hello as I pass over your hometown -- assuming it happens.