Texas Instruments MSP430 User Manual

301
* UCMODE_3 -- I2C Mode
* UCSYNC -- Synchronous Mode
*
* Note: ~<BIT> indicates that <BIT> has value zero
*/
UCB0CTL0 = UCMST | UCMODE_3 | UCSYNC;
/*
* Control Register 1
*
* UCSSEL_2 -- SMCLK
* ~UCTR -- Receiver
* ~UCTXNACK -- Acknowledge normally
* ~UCTXSTP -- No STOP generated
* ~UCTXSTT -- Do not generate START condition
* UCSWRST -- Enabled. USCI logic held in reset state
*
* Note: ~<BIT> indicates that <BIT> has value zero
*/
UCB0CTL1 = UCSSEL_2 | UCSWRST;
/* I2C Slave Address Register */
UCB0I2CSA = BH1750_addr;
/* Bit Rate Control Register 0 */
UCB0BR0 = 20;
/* Enable USCI */
UCB0CTL1 &= ~UCSWRST;
/* USER CODE START (section: USCI_B0_graceInit_epilogue) */
/* User code */
/* USER CODE END (section: USCI_B0_graceInit_epilogue) */
}
void System_graceInit(void)
{
/* USER CODE START (section: System_graceInit_prologue) */
/* User initialization code */
/* USER CODE END (section: System_graceInit_prologue) */
/*
* SR, Status Register
*
* ~SCG1 -- Disable System clock generator 1
* ~SCG0 -- Disable System clock generator 0
* ~OSCOFF -- Oscillator On
* ~CPUOFF -- CPU On
* GIE -- General interrupt enable
*
* Note: ~<BIT> indicates that <BIT> has value zero
*/
__bis_SR_register(GIE);
/* USER CODE START (section: System_graceInit_epilogue) */
/* User code */
/* USER CODE END (section: System_graceInit_epilogue) */
}

Texas Instruments MSP430 Specifications

General

Brand	Texas Instruments
Model	MSP430
Category	Microcontrollers
Language	English