Hello, I configure UART with MSP430FR5969 Launchpad, I have problem getting data from PC, for example, when I send number 8, I read 0. Regards. My code is: void main(void) { // stop watchdog WDT_A_hold(WDT_A_BASE); // LFXT Setup //Set PJ.4 and PJ.5 as Primary Module Function Input. /* * Select Port J * Set Pin 4, 5 to input Primary Module Function, LFXT. */ GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_PJ, GPIO_PIN4 + GPIO_PIN5, GPIO_PRIMARY_MODULE_FUNCTION ); //Set DCO frequency to 1 MHz CS_setDCOFreq(CS_DCORSEL_0,CS_DCOFSEL_0); //Set external clock frequency to 32.768 KHz CS_setExternalClockSource(32768,0); //Set ACLK=LFXT CS_initClockSignal(CS_ACLK,CS_LFXTCLK_SELECT,CS_CLOCK_DIVIDER_1); //Set SMCLK = DCO with frequency divider of 1 CS_initClockSignal(CS_SMCLK,CS_DCOCLK_SELECT,CS_CLOCK_DIVIDER_1); //Set MCLK = DCO with frequency divider of 1 CS_initClockSignal(CS_MCLK,CS_DCOCLK_SELECT,CS_CLOCK_DIVIDER_1); //Start XT1 with no time out CS_turnOnLFXT(CS_LFXT_DRIVE_0); // Configure UART pins //Set P2.0 and P2.1 as Secondary Module Function Input. /* * Select Port 2d * Set Pin 0, 1 to input Secondary Module Function, (UCA0TXD/UCA0SIMO, UCA0RXD/UCA0SOMI). */ GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_P2, GPIO_PIN0 + GPIO_PIN1, GPIO_SECONDARY_MODULE_FUNCTION ); /* * Disable the GPIO power-on default high-impedance mode to activate * previously configured port settings */ PMM_unlockLPM5(); // Configure UART EUSCI_A_UART_initParam param = {0}; param.selectClockSource = EUSCI_A_UART_CLOCKSOURCE_ACLK; param.clockPrescalar = 3; param.firstModReg = 0; param.secondModReg = 3; param.parity = EUSCI_A_UART_NO_PARITY; param.msborLsbFirst = EUSCI_A_UART_LSB_FIRST; param.numberofStopBits = EUSCI_A_UART_ONE_STOP_BIT; param.uartMode = EUSCI_A_UART_MODE; param.overSampling = EUSCI_A_UART_LOW_FREQUENCY_BAUDRATE_GENERATION; if(STATUS_FAIL == EUSCI_A_UART_init(EUSCI_A0_BASE, ¶m)) { return; } EUSCI_A_UART_enable(EUSCI_A0_BASE); while(1) { // Load data onto buffer EUSCI_A_UART_transmitData(EUSCI_A0_BASE, 8); }
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