Introduction - If you have any usage issues, please Google them yourself
This demo connects two MSP430 s via the I2C bus. The master
reads 5 bytes the slave. This is the MASTER CODE. The data the slave
transmitter begins at 0 and increments with each transfer.
The USCI_B0 RX interrupt is used to know when new data has been received.
ACLK = default REFO ~32768Hz, MCLK = SMCLK = BRCLK = DCODIV ~1MHz.