Part Number: MSP432P401R
I am trying to control the LEDs on the msp432 with an android app that sends characters over bluetooth. The bluetooth module I have is the SparkFun Bluetooth Modem - BlueSMiRF Silver. But it doesn't work. And the RXbuffer Register is also empty. I have added the code I have implemented below
/* --COPYRIGHT--,BSD * Copyright (c) 2017, Texas Instruments Incorporated * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of Texas Instruments Incorporated nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * --/COPYRIGHT--*/ /****************************************************************************** * MSP432 UART - Loopback with 24MHz DCO BRCLK * * Description: This demo connects TX to RX of the MSP432 UART * The example code shows proper initialization of registers * and interrupts to receive and transmit data. If data is incorrect P1.0 LED * is turned ON. * * MCLK = HSMCLK = SMCLK = DCO of 24MHz * * MSP432P401 * ----------------- * | | * RST -| P1.3/UCA2TXD|----| * | | | * -| | | * | P1.2/UCA2RXD|----| * | | * | P1.0|---> LED * | | * *******************************************************************************/ /* DriverLib Includes */ #include <ti/devices/msp432p4xx/driverlib/driverlib.h> /* Standard Includes */ #include <stdint.h> #include <stdbool.h> //volatile uint8_t TXData = 1; //char uint8_t data = 1; /* UART Configuration Parameter. These are the configuration parameters to * make the eUSCI A UART module to operate with a 115200 baud rate. These * values were calculated using the online calculator that TI provides * at: * software-dl.ti.com/.../index.html */ const eUSCI_UART_Config uartConfig = { EUSCI_A_UART_CLOCKSOURCE_SMCLK, // SMCLK Clock Source 78, // BRDIV = 78 2, // UCxBRF = 2 0, // UCxBRS = 0 EUSCI_A_UART_NO_PARITY, // No Parity EUSCI_A_UART_LSB_FIRST, // MSB First EUSCI_A_UART_ONE_STOP_BIT, // One stop bit EUSCI_A_UART_MODE, // UART mode EUSCI_A_UART_OVERSAMPLING_BAUDRATE_GENERATION // Oversampling }; int main(void) { /* Halting WDT */ MAP_WDT_A_holdTimer(); MAP_Interrupt_disableSleepOnIsrExit(); /* Selecting P1.2 and P1.3 in UART mode */ MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P1, GPIO_PIN2 | GPIO_PIN3, GPIO_PRIMARY_MODULE_FUNCTION); /* Selecting P3.2 and P3.3 in UART mode and P1.0 as output (LED) */ MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P3, GPIO_PIN2 | GPIO_PIN3, GPIO_PRIMARY_MODULE_FUNCTION); MAP_GPIO_setAsOutputPin(GPIO_PORT_P1, GPIO_PIN0); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_PIN0); MAP_GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN1); MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN1); /* Setting DCO to 12MHz */ CS_setDCOCenteredFrequency(CS_DCO_FREQUENCY_12); /* Enabling the FPU for floating point operation */ MAP_FPU_enableModule(); MAP_FPU_enableLazyStacking(); /* Configuring UART Module */ MAP_UART_initModule(EUSCI_A2_BASE, &uartConfig); /* Enable UART module */ MAP_UART_enableModule(EUSCI_A2_BASE); /* Enabling interrupts */ MAP_UART_enableInterrupt(EUSCI_A2_BASE, EUSCI_A_UART_RECEIVE_INTERRUPT); MAP_Interrupt_enableInterrupt(INT_EUSCIA2); MAP_Interrupt_enableMaster(); while(1) { //MAP_UART_transmitData('A', TXData); /*if(data == '1') MAP_GPIO_setOutputHighOnPin(GPIO_PORT_P1, GPIO_PIN0); else if(data == '2') MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_PIN0); else MAP_GPIO_setOutputHighOnPin(GPIO_PORT_P2, GPIO_PIN1); */ switch (data) { case 1: //on1 MAP_GPIO_setOutputHighOnPin(GPIO_PORT_P1, GPIO_PIN0); break; case 2: //off1 MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_PIN0); break; case 3: //on2 MAP_GPIO_setOutputHighOnPin(GPIO_PORT_P2, GPIO_PIN1); break; case 4: //off2 MAP_GPIO_setOutputHighOnPin(GPIO_PORT_P2, GPIO_PIN1); break; } } } /* EUSCI A2 UART ISR - Echos data back to PC host */ void EUSCIA2_IRQHandler(void) { uint32_t status = MAP_UART_getEnabledInterruptStatus(EUSCI_A2_BASE); if(status & EUSCI_A_UART_RECEIVE_INTERRUPT_FLAG){ data = UCA2RXBUF; } //__no_operation(); MAP_UART_clearInterruptFlag(EUSCI_A2_BASE, status); }
