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I recently got a MSP-EXP430FR5969 launchpad and when I started to test the out of the box demo, there seems to be some issue.
First, the temperature values read out by the device are in the range of 85-90 degrees centigrade.
Second, although MSP430FR5969 could log the data into the FRAM (confirmed by verifying the operation of LEDs), I couldn't print the data back to my computer.
I don't think backchannel UART is at fault because it could show the readings in the live mode. Furthermore, I could run the basic "Hello_world" program, through which I could display "Hello World!" on the screen. So, I'm assuming micro-controller is also working properly.
Please help me know why my evaluation board is behaving oddly.
Evan,
Thanks for your reply. I tried resetting the axes but nothing seems to work. Please let me know once you fix the issues (i mean after holidays).
Kaushik,
Thanks for the patience! For now we have a small work around that you can implement. Replacing the 2 attached files in the OOB project should fix to the issue.
Basically, the PC GUI (using a serial-port JavaScript library) expects a certain arbitrary delay between small chunks of UART data transmissions. The delay in the original code somehow is not long enough for the GUI to separate the incoming data.
We do wish to improve the UART communication to combine small chunks of UART data into larger data blocks, but that will be have to wait until a future MSPWare update.
/* --COPYRIGHT--,BSD
* Copyright (c) 2014, 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--*/
/*******************************************************************************
*
* FRAMLogMode.c
*
* MSP430FR5969 wakes up every 5 seconds from LPM3.5 to measure and store its
* internal temperature sensor & battery monitor data to FRAM
*
* June 2014
* E. Chen
*
******************************************************************************/
#include "FRAMLogMode.h"
#include "main.h"
#include "driverlib.h"
/*
* FRAM Array reserved to store data memory for Temperature and Voltage
* Stores up to 6,144 Temp + 6,144 Voltage + 1 index data
* 5 second / sample ~ 8.5 hours of data
*/
#if defined(__IAR_SYSTEMS_ICC__)
#pragma location = 0x9000
__no_init uint16_t dataArray[12289];
#elif defined(__TI_COMPILER_VERSION__)
#pragma location = 0x9000
#pragma NOINIT(dataArray)
uint16_t dataArray[12289];
#endif
// FRAM Array reserved to store FRAM Log Mode starting Time Stamp
#if defined(__IAR_SYSTEMS_ICC__)
#pragma location = 0xF002
__no_init uint8_t timeStamp[6];
#elif defined(__TI_COMPILER_VERSION__)
#pragma location = 0xF002
#pragma NOINIT(timeStamp)
uint8_t timeStamp[6]; // 6 bytes Time Stamp received from PC
#endif
unsigned int *FRAM_index_ptr = (unsigned int*)(FRAM_TEMP_INDEX); // Pointer to address that stores index
unsigned int *FRAM_TEMP_write_ptr;
unsigned int *FRAM_BAT_write_ptr;
unsigned int storageDone;
void framLog()
{
//Initialize the ADC12B Module
/*
* Base address of ADC12B Module
* Use internal ADC12B bit as sample/hold signal to start conversion
* USE MODOSC 5MHZ Digital Oscillator as clock source
* Use default clock divider/pre-divider of 1
* Use Temperature Sensor and Battery Monitor internal channels
*/
ADC12_B_initParam initParam = {0};
initParam.sampleHoldSignalSourceSelect = ADC12_B_SAMPLEHOLDSOURCE_SC;
initParam.clockSourceSelect = ADC12_B_CLOCKSOURCE_ACLK;
initParam.clockSourceDivider = ADC12_B_CLOCKDIVIDER_1;
initParam.clockSourcePredivider = ADC12_B_CLOCKPREDIVIDER__1;
initParam.internalChannelMap = ADC12_B_TEMPSENSEMAP | ADC12_B_BATTMAP;
ADC12_B_init(ADC12_B_BASE, &initParam);
//Enable the ADC12B module
ADC12_B_enable(ADC12_B_BASE);
// Sets up the sampling timer pulse mode
ADC12_B_setupSamplingTimer(ADC12_B_BASE,
ADC12_B_CYCLEHOLD_128_CYCLES,
ADC12_B_CYCLEHOLD_128_CYCLES,
ADC12_B_MULTIPLESAMPLESENABLE);
// Maps Temperature Sensor input channel to Memory 0 and select voltage references
/*
* Base address of the ADC12B Module
* Configure memory buffer 0
* Map input A1 to memory buffer 0
* Vref+ = IntBuffer
* Vref- = AVss
* Memory buffer 0 is not the end of a sequence
*/
ADC12_B_configureMemoryParam configureMemoryParam = {0};
configureMemoryParam.memoryBufferControlIndex = ADC12_B_MEMORY_0;
configureMemoryParam.inputSourceSelect = ADC12_B_INPUT_TCMAP;
configureMemoryParam.refVoltageSourceSelect =
ADC12_B_VREFPOS_INTBUF_VREFNEG_VSS;
configureMemoryParam.endOfSequence = ADC12_B_NOTENDOFSEQUENCE;
configureMemoryParam.windowComparatorSelect =
ADC12_B_WINDOW_COMPARATOR_DISABLE;
configureMemoryParam.differentialModeSelect =
ADC12_B_DIFFERENTIAL_MODE_DISABLE;
ADC12_B_configureMemory(ADC12_B_BASE, &configureMemoryParam);
// Maps Battery Monitor input channel to Memory 0 and select voltage references
/*
* Base address of the ADC12B Module
* Configure memory buffer 0
* Map input A1 to memory buffer 0
* Vref+ = IntBuffer
* Vref- = AVss
* Memory buffer 0 is not the end of a sequence
*/
configureMemoryParam.memoryBufferControlIndex = ADC12_B_MEMORY_1;
configureMemoryParam.inputSourceSelect = ADC12_B_INPUT_BATMAP;
configureMemoryParam.refVoltageSourceSelect =
ADC12_B_VREFPOS_INTBUF_VREFNEG_VSS;
configureMemoryParam.endOfSequence = ADC12_B_ENDOFSEQUENCE;
configureMemoryParam.windowComparatorSelect =
ADC12_B_WINDOW_COMPARATOR_DISABLE;
configureMemoryParam.differentialModeSelect =
ADC12_B_DIFFERENTIAL_MODE_DISABLE;
ADC12_B_configureMemory(ADC12_B_BASE, &configureMemoryParam);
// Clear memory buffer 0 interrupt
ADC12_B_clearInterrupt(ADC12_B_BASE,
0,
ADC12_B_IFG1
);
// Enable memory buffer 0 interrupt
ADC12_B_enableInterrupt(ADC12_B_BASE,
ADC12_B_IE1,
0,
0);
// Configure internal reference
while(Ref_A_isRefGenBusy(REF_A_BASE)); // If ref generator busy, WAIT
Ref_A_enableTempSensor(REF_A_BASE);
Ref_A_setReferenceVoltage(REF_A_BASE, REF_A_VREF2_0V);
Ref_A_enableReferenceVoltage(REF_A_BASE);
// Start timer
Timer_A_initUpModeParam param = {0};
param.clockSource = TIMER_A_CLOCKSOURCE_ACLK;
param.clockSourceDivider = TIMER_A_CLOCKSOURCE_DIVIDER_1;
param.timerPeriod = 13;
param.timerInterruptEnable_TAIE = TIMER_A_TAIE_INTERRUPT_DISABLE;
param.captureCompareInterruptEnable_CCR0_CCIE =
TIMER_A_CCIE_CCR0_INTERRUPT_ENABLE;
param.timerClear = TIMER_A_DO_CLEAR;
param.startTimer = true;
Timer_A_initUpMode(TIMER_A0_BASE, ¶m);
__bis_SR_register(LPM3_bits | GIE); // Enter LPM3. Delay for Ref to settle.
Timer_A_stop(TIMER_A0_BASE);
P1OUT &= ~BIT0;
P1DIR |= BIT0;
P1OUT |= BIT0;
//Enable/Start sampling and conversion
/*
* Base address of ADC12B Module
* Start the conversion into memory buffer 0
* Use the single-channel, single-conversion mode
*/
ADC12_B_startConversion(ADC12_B_BASE,
ADC12_B_MEMORY_0,
ADC12_B_SEQOFCHANNELS);
__bis_SR_register(LPM3_bits | GIE); // Wait for conversion to complete
__bic_SR_register(GIE);
ADC12_B_disable(ADC12_B_BASE);
// Log Temperature ADC conversion results to FRAM
FRAM_TEMP_write_ptr = (unsigned int*)(FRAM_TEMP_RESULTS + *FRAM_index_ptr);
*FRAM_TEMP_write_ptr = ADC12MEM0;
// Log Bat (SuperCap) Voltage ADC conversion results to FRAM
FRAM_BAT_write_ptr = (unsigned int*)(FRAM_BAT_RESULTS + *FRAM_index_ptr);
*FRAM_BAT_write_ptr = ADC12MEM1;
*FRAM_index_ptr += 2;
// Index has reached the end of allocated FRAM
if (((*FRAM_index_ptr)/2)+1 > 0x1800)
{
mode = '0';
GPIO_setOutputHighOnPin(GPIO_PORT_P4, GPIO_PIN6);
__delay_cycles(5000);
}
P1OUT &= ~BIT0;
if (mode == FRAM_LOG_MODE)
{
GPIO_selectInterruptEdge(GPIO_PORT_P1, GPIO_PIN1, GPIO_HIGH_TO_LOW_TRANSITION);
GPIO_setAsInputPinWithPullUpResistor(GPIO_PORT_P1, GPIO_PIN1);
GPIO_clearInterrupt(GPIO_PORT_P1, GPIO_PIN1);
GPIO_enableInterrupt(GPIO_PORT_P1, GPIO_PIN1);
// Request the disabling of the core voltage regulator when device enters
// LPM3 (or LPM4) so that we can effectively enter LPM3.5 (or LPM4.5).
PMM_turnOffRegulator();
//Enter LPM3 mode with interrupts enabled
__bis_SR_register(LPM4_bits + GIE);
__no_operation();
}
}
void transmitFRAMData()
{
FRAM_index_ptr = (unsigned int*)FRAM_TEMP_INDEX;
// Select UART TXD on P2.0
GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION);
__delay_cycles(900000);
// Send FRAM Index
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, (uint8_t)(*FRAM_index_ptr>>8));
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, (uint8_t)(*FRAM_index_ptr));
__delay_cycles(900000);
uint16_t i;
for (i=0;i<*FRAM_index_ptr;i+=2)
{
// Send logged Temperature Sensor ata
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, *(uint8_t *)(FRAM_TEMP_RESULTS+i+1));
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, *(uint8_t *)(FRAM_TEMP_RESULTS+i));
__delay_cycles(900000);
}
for (i=0;i<*FRAM_index_ptr;i+=2)
{
// Send logged Battery Monitor data
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, *(uint8_t *)(FRAM_BAT_RESULTS+i+1));
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, *(uint8_t *)(FRAM_BAT_RESULTS+i));
__delay_cycles(900000);
}
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0);
mode = 0;
}
void storeTimeStamp()
{
storageDone = 0;
while(storageDone < 6)
{
__bis_SR_register(LPM3_bits | GIE); // Enter LPM3. Delay for Ref to settle.
__no_operation();
timeStamp[storageDone] = EUSCI_A_UART_receiveData(EUSCI_A0_BASE);
storageDone++;
}
}
/* --COPYRIGHT--,BSD
* Copyright (c) 2014, 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--*/
/*******************************************************************************
*
* main.c
*
* Out of Box Demo for the MSP-EXP430FR5969
* Main loop, initialization, and interrupt service routines
*
* June 2014
* E. Chen
*
******************************************************************************/
#include "main.h"
#include "LiveTempMode.h"
#include "FRAMLogMode.h"
#include "driverlib.h"
uint8_t RXData = 0; // UART Receive byte
int mode = 0; // mode selection variable
int pingHost = 0; // ping request from PC GUI
Calendar calendar; // Calendar used for RTC
#if defined(__IAR_SYSTEMS_ICC__)
#pragma location = 0x9000
__no_init uint16_t dataArray[12289];
#endif
//-----------------------------------------------------------------------------
int _system_pre_init(void)
{
// Stop Watchdog timer
WDT_A_hold(__MSP430_BASEADDRESS_WDT_A__); // Stop WDT
/*==================================*/
/* Choose if segment initialization */
/* should be done or not. */
/* Return: 0 to omit initialization */
/* 1 to run initialization */
/*==================================*/
return 1;
}
/*
* main.c
*/
int main(void) {
// Check if a wakeup from LPMx.5
if (SYSRSTIV == SYSRSTIV_LPM5WU) {
// Button S2 pressed
if (P1IFG & BIT1)
{
// Clear P1.1 interrupt flag
GPIO_clearInterrupt(GPIO_PORT_P1, GPIO_PIN0);
// Exit FRAM Log Mode
mode = '0';
// Light up LED1 to indicate Exit from FRAM mode
Init_GPIO();
GPIO_setOutputHighOnPin(GPIO_PORT_P4, GPIO_PIN6);
__delay_cycles(600000);
}
else
{
// Continue FRAM data logging
mode = FRAM_LOG_MODE;
Init_RTC();
Init_GPIO();
framLog();
}
}
else
{
Init_GPIO();
GPIO_setOutputHighOnPin(GPIO_PORT_P1, GPIO_PIN0);
// Toggle LED1 and LED2 to indicate OutOfBox Demo start
int i;
for (i=0;i<10;i++)
{
GPIO_toggleOutputOnPin(GPIO_PORT_P1, GPIO_PIN0);
GPIO_toggleOutputOnPin(GPIO_PORT_P4, GPIO_PIN6);
__delay_cycles(200000);
}
}
// Board initializations
Init_GPIO();
Init_Clock();
Init_UART();
// Main Loop
while (1)
{
// Acknowledge PC GUI's ping request
if (pingHost)
sendAckToPC();
switch (mode)
{
case LIVE_TEMP_MODE: // Measures and transmits internal temperature data every 0.125 second
sendCalibrationConstants();
liveTemp();
break;
case FRAM_LOG_MODE: // Logs internal temperature and battery voltage data to FRAM every 5 seconds
Init_RTC();
storeTimeStamp();
dataArray[12288] = 0;
int i;
for (i=0;i<3;i++)
{
GPIO_setOutputHighOnPin(GPIO_PORT_P4, GPIO_PIN6);
__delay_cycles(300000);
GPIO_setOutputLowOnPin(GPIO_PORT_P4, GPIO_PIN6);
__delay_cycles(2000000);
}
enterLPM35();
framLog();
break;
case TRANSMIT_DATA_MODE: // Transmits Logged FRAM data through UART to PC
sendCalibrationConstants();
sendTimeStamp();
transmitFRAMData();
break;
}
__bis_SR_register(LPM3_bits | GIE); // Enter LPM3 and wait for PC commands
__no_operation();
}
}
/*
* GPIO Initialization
*/
void Init_GPIO()
{
// Set all GPIO pins to output low for low power
GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setOutputLowOnPin(GPIO_PORT_P3, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setOutputLowOnPin(GPIO_PORT_P4, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setOutputLowOnPin(GPIO_PORT_PJ, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7|GPIO_PIN8|GPIO_PIN9|GPIO_PIN10|GPIO_PIN11|GPIO_PIN12|GPIO_PIN13|GPIO_PIN14|GPIO_PIN15);
GPIO_setAsOutputPin(GPIO_PORT_P1, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setAsOutputPin(GPIO_PORT_P3, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setAsOutputPin(GPIO_PORT_P4, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7);
GPIO_setAsOutputPin(GPIO_PORT_PJ, GPIO_PIN0|GPIO_PIN1|GPIO_PIN2|GPIO_PIN3|GPIO_PIN4|GPIO_PIN5|GPIO_PIN6|GPIO_PIN7|GPIO_PIN8|GPIO_PIN9|GPIO_PIN10|GPIO_PIN11|GPIO_PIN12|GPIO_PIN13|GPIO_PIN14|GPIO_PIN15);
// Configure P2.0 - UCA0TXD and P2.1 - UCA0RXD
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0);
GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN0);
GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P2, GPIO_PIN1, GPIO_SECONDARY_MODULE_FUNCTION);
// Set PJ.4 and PJ.5 as Primary Module Function Input, LFXT.
GPIO_setAsPeripheralModuleFunctionInputPin(
GPIO_PORT_PJ,
GPIO_PIN4 + GPIO_PIN5,
GPIO_PRIMARY_MODULE_FUNCTION
);
// Disable the GPIO power-on default high-impedance mode
// to activate previously configured port settings
PMM_unlockLPM5();
}
/*
* Clock System Initialization
*/
void Init_Clock()
{
// Set DCO frequency to 8 MHz
CS_setDCOFreq(CS_DCORSEL_0, CS_DCOFSEL_6);
//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);
}
/*
* UART Communication Initialization
*/
void Init_UART()
{
// Configure UART
EUSCI_A_UART_initParam param = {0};
param.selectClockSource = EUSCI_A_UART_CLOCKSOURCE_SMCLK;
param.clockPrescalar = 52;
param.firstModReg = 1;
param.secondModReg = 0x49;
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_OVERSAMPLING_BAUDRATE_GENERATION;
if(STATUS_FAIL == EUSCI_A_UART_init(EUSCI_A0_BASE, ¶m))
return;
EUSCI_A_UART_enable(EUSCI_A0_BASE);
EUSCI_A_UART_clearInterrupt(EUSCI_A0_BASE,
EUSCI_A_UART_RECEIVE_INTERRUPT);
// Enable USCI_A0 RX interrupt
EUSCI_A_UART_enableInterrupt(EUSCI_A0_BASE,
EUSCI_A_UART_RECEIVE_INTERRUPT); // Enable interrupt
// Enable globale interrupt
__enable_interrupt();
}
/*
* Real Time Clock Initialization
*/
void Init_RTC()
{
//Setup Current Time for Calendar
calendar.Seconds = 0x55;
calendar.Minutes = 0x30;
calendar.Hours = 0x04;
calendar.DayOfWeek = 0x01;
calendar.DayOfMonth = 0x30;
calendar.Month = 0x04;
calendar.Year = 0x2014;
// Initialize RTC with the specified Calendar above
RTC_B_initCalendar(RTC_B_BASE,
&calendar,
RTC_B_FORMAT_BCD);
RTC_B_setCalendarEvent(RTC_B_BASE,
RTC_B_CALENDAREVENT_MINUTECHANGE
);
RTC_B_clearInterrupt(RTC_B_BASE,
RTC_B_TIME_EVENT_INTERRUPT
);
RTC_B_enableInterrupt(RTC_B_BASE,
RTC_B_TIME_EVENT_INTERRUPT
);
//Start RTC Clock
RTC_B_startClock(RTC_B_BASE);
}
/*
* Transmit Internal Temperature Sensor's Calibration constants through UART
*/
void sendCalibrationConstants()
{
// Select UART TXD on P2.0
GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION);
// Send Temp Sensor Calibration Data
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, CAL_ADC_12T30_H);
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, CAL_ADC_12T30_L);
__delay_cycles(900000);
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, CAL_ADC_12T85_H);
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, CAL_ADC_12T85_L);
while(EUSCI_A_UART_queryStatusFlags(EUSCI_A0_BASE, EUSCI_A_UART_BUSY));
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0);
GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN0);
}
/*
* Transmit FRAMLogMode starting TimeStamp through UART
*/
void sendTimeStamp()
{
// Select UART TXD on P2.0
GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION);
__delay_cycles(900000);
int i;
for (i=0;i<6;i++) {
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, timeStamp[i]);
__delay_cycles(900000);
}
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0);
GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN0);
}
/*
* Transmit 0xFF to acknowledge PC GUI's ping request
*/
void sendAckToPC()
{
// Select UART TXD on P2.0
GPIO_setAsPeripheralModuleFunctionOutputPin(GPIO_PORT_P2, GPIO_PIN0, GPIO_SECONDARY_MODULE_FUNCTION);
// Send Ackknowledgement to Host PC
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, 0xFF);
EUSCI_A_UART_transmitData(EUSCI_A0_BASE, 0xFF);
while(EUSCI_A_UART_queryStatusFlags(EUSCI_A0_BASE, EUSCI_A_UART_BUSY));
pingHost = 0;
GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN0);
GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN0);
}
/*
* Enter Low Power Mode 3.5
*/
void enterLPM35()
{
// Configure button S2 (P1.1) interrupt
GPIO_selectInterruptEdge(GPIO_PORT_P1, GPIO_PIN1, GPIO_HIGH_TO_LOW_TRANSITION);
GPIO_setAsInputPinWithPullUpResistor(GPIO_PORT_P1, GPIO_PIN1);
GPIO_clearInterrupt(GPIO_PORT_P1, GPIO_PIN1);
GPIO_enableInterrupt(GPIO_PORT_P1, GPIO_PIN1);
// Request the disabling of the core voltage regulator when device enters
// LPM3 (or LPM4) so that we can effectively enter LPM3.5 (or LPM4.5).
PMM_turnOffRegulator();
//Enter LPM3 mode with interrupts enabled
__bis_SR_register(LPM4_bits + GIE);
__no_operation();
}
/*
* USCI_A0 Interrupt Service Routine that receives PC GUI's commands
*/
#pragma vector = USCI_A0_VECTOR
__interrupt void USCI_A0_ISR(void)
{
int i;
switch (__even_in_range(UCA0IV, USCI_UART_UCTXCPTIFG)) {
case USCI_NONE: break;
case USCI_UART_UCRXIFG:
i = EUSCI_A_UART_receiveData(EUSCI_A0_BASE);
if (i == '5')
pingHost = 1;
else
mode = i;
__bic_SR_register_on_exit(LPM3_bits); // Exit active CPU
break;
case USCI_UART_UCTXIFG: break;
case USCI_UART_UCSTTIFG: break;
case USCI_UART_UCTXCPTIFG: break;
}
}
/*
* ADC12 Interrupt Service Routine
* Exits LPM3 when Temperature/Voltage data is ready
*/
#pragma vector = ADC12_VECTOR
__interrupt void ADC12_ISR(void)
{
switch(__even_in_range(ADC12IV,76))
{
case ADC12IV_NONE: break; // Vector 0: No interrupt
case ADC12IV_ADC12OVIFG: break; // Vector 2: ADC12MEMx Overflow
case ADC12IV_ADC12TOVIFG: break; // Vector 4: Conversion time overflow
case ADC12IV_ADC12HIIFG: break; // Vector 6: ADC12HI
case ADC12IV_ADC12LOIFG: break; // Vector 8: ADC12LO
case ADC12IV_ADC12INIFG: break; // Vector 10: ADC12IN
case ADC12IV_ADC12IFG0: // Vector 12: ADC12MEM0
ADC12IFGR0 &= ~ADC12IFG0; // Clear interrupt flag
__bic_SR_register_on_exit(LPM3_bits); // Exit active CPU
break;
case ADC12IV_ADC12IFG1: // Vector 14: ADC12MEM1
ADC12IFGR0 &= ~ADC12IFG1; // Clear interrupt flag
__bic_SR_register_on_exit(LPM3_bits); // Exit active CPU
break;
case ADC12IV_ADC12IFG2: break; // Vector 16: ADC12MEM2
case ADC12IV_ADC12IFG3: break; // Vector 18: ADC12MEM3
case ADC12IV_ADC12IFG4: break; // Vector 20: ADC12MEM4
case ADC12IV_ADC12IFG5: break; // Vector 22: ADC12MEM5
case ADC12IV_ADC12IFG6: break; // Vector 24: ADC12MEM6
case ADC12IV_ADC12IFG7: break; // Vector 26: ADC12MEM7
case ADC12IV_ADC12IFG8: break; // Vector 28: ADC12MEM8
case ADC12IV_ADC12IFG9: break; // Vector 30: ADC12MEM9
case ADC12IV_ADC12IFG10: break; // Vector 32: ADC12MEM10
case ADC12IV_ADC12IFG11: break; // Vector 34: ADC12MEM11
case ADC12IV_ADC12IFG12: break; // Vector 36: ADC12MEM12
case ADC12IV_ADC12IFG13: break; // Vector 38: ADC12MEM13
case ADC12IV_ADC12IFG14: break; // Vector 40: ADC12MEM14
case ADC12IV_ADC12IFG15: break; // Vector 42: ADC12MEM15
case ADC12IV_ADC12IFG16: break; // Vector 44: ADC12MEM16
case ADC12IV_ADC12IFG17: break; // Vector 46: ADC12MEM17
case ADC12IV_ADC12IFG18: break; // Vector 48: ADC12MEM18
case ADC12IV_ADC12IFG19: break; // Vector 50: ADC12MEM19
case ADC12IV_ADC12IFG20: break; // Vector 52: ADC12MEM20
case ADC12IV_ADC12IFG21: break; // Vector 54: ADC12MEM21
case ADC12IV_ADC12IFG22: break; // Vector 56: ADC12MEM22
case ADC12IV_ADC12IFG23: break; // Vector 58: ADC12MEM23
case ADC12IV_ADC12IFG24: break; // Vector 60: ADC12MEM24
case ADC12IV_ADC12IFG25: break; // Vector 62: ADC12MEM25
case ADC12IV_ADC12IFG26: break; // Vector 64: ADC12MEM26
case ADC12IV_ADC12IFG27: break; // Vector 66: ADC12MEM27
case ADC12IV_ADC12IFG28: break; // Vector 68: ADC12MEM28
case ADC12IV_ADC12IFG29: break; // Vector 70: ADC12MEM29
case ADC12IV_ADC12IFG30: break; // Vector 72: ADC12MEM30
case ADC12IV_ADC12IFG31: break; // Vector 74: ADC12MEM31
case ADC12IV_ADC12RDYIFG: break; // Vector 76: ADC12RDY
default: break;
}
}
/*
* Timer0_A3 Interrupt Vector (TAIV) handler
* Used to trigger ADC conversion every 0.125 seconds
*
*/
#pragma vector=TIMER0_A0_VECTOR
__interrupt void TIMER0_A0_ISR(void)
{
__bic_SR_register_on_exit(LPM3_bits); // Exit active CPU
}
/*
* Port 1 interrupt service routine to handle S2 button press
*
*/
#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void)
{
P1IFG &= ~BIT1; // Clear P1.1 IFG
mode = FRAM_LOG_MODE;
__bic_SR_register_on_exit(LPM3_bits); // Exit LPM3
}
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