#include "driverlib.h"

Macros
#define	SLAVE_ADDRESS 0x48

Functions
void	main (void)

void	USCIB0_ISR (void)

Variables
uint8_t	TXData = 0

Macro Definition Documentation

◆ SLAVE_ADDRESS

#define SLAVE_ADDRESS 0x48

EUSCI_B0 I2C Slave TX multiple bytes to MSP430 Master

Description: This demo connects two MSP430's via the I2C bus. The master reads from the slave. This is the SLAVE code. The TX data begins at 0 and is incremented each time it is sent. A stop condition is used as a trigger to initialize the outgoing data. The USCI_B0 TX interrupt is used to know when to TX. Tested on MSP430FR5969

                          /|\  /|\
                           10k  10k
             slave         |    |        master
       -----------------   |    |   -----------------
     -|XIN  P1.6/UCB0SDA|<-|----+->|P1.6/UCB0SDA  XIN|-
      |                 |  |       |                 |
     -|XOUT             |  |       |             XOUT|-
      |     P1.7/UCB0SCL|<-+------>|P1.7/UCB0SCL     |
      |                 |          |                 |

This example uses the following peripherals and I/O signals. You must review these and change as needed for your own board:

I2C peripheral
GPIO Port peripheral (for I2C pins)
SCL2
SDA

This example uses the following interrupt handlers. To use this example in your own application you must add these interrupt handlers to your vector table.