Hello everyone,
I am using CCSV7.0.0.00042 and i am connect to my own board MSP432P401M using XDS100V2 emulator. When I run(debug) the code at first time the counter value m and n is increment continuously, also the value in ADC14MEM0 is changes continuously and when i stop the programme and debug again the counter m and n continuously increment but value in ADC14MEM0 is not varied continuously.every time i want to pause and start the debug then result is change.
I am attaching main.c file for reference
// MSP432P401M - ADC14, Sample A1, AVcc Ref and Timer32 Example, One-shot mode in free run
//
// Description:A single sample is made on A1 with reference to AVcc.
// ADC14 internal oscillator times sample (16x) and conversion.
// Timer 32 (module 0) is set up in 32-bit, free-run, and ONE SHOT mode.
// Timer count is loaded with an initial value of 0xFFFFFF.
// After perform some function, the timer interrupt triggers
// and the ISR is executed. Within the ISR, timer counts down and reaches the 0.
// Software sets ADC14_CTL0_SC to start sample and
// conversion - ADC14_CTL0 automatically cleared at EOC.It just clears the interrupt flag
// and exits back to the main application and enters a while loop.
//************************************************************************************************//
// SAYALI PATHAK
// 3 Feb 2017 (Created)
// 8 Feb 2017 (Changes)
#include "MSP432P401M.h"
#include <ti/devices/msp432p4xx/driverlib/driverlib.h>
#include <stdint.h>
//Defining variables for inclinometer ADC conversions
//Nikhil Bapat 8 Feb 2017
unsigned int i;
//unsigned int j;
unsigned int l=1;
//SAYALI PATHAK 21 FEB 2017
unsigned char vsenseout;
unsigned char lAngle;
// sayali pathak 16 feb 2017
uint32_t currentPowerState;
//Defining variables for inclinometer voltage to angel conversions
//
//
//Counters for debugging
unsigned int m=0;
unsigned int n=0;
//SAYALI PATHAK 17 FEB 2017
/* Timer_A Continuous Mode Configuration Parameter */
const Timer_A_UpModeConfig upModeConfig =
{
TIMER_A_CLOCKSOURCE_ACLK, // ACLK Clock Source
TIMER_A_CLOCKSOURCE_DIVIDER_1, // ACLK/1 = 32hz
163.84,
TIMER_A_TAIE_INTERRUPT_DISABLE, // Disable Timer ISR
TIMER_A_CCIE_CCR0_INTERRUPT_DISABLE, // Disable CCR0
TIMER_A_DO_CLEAR // Clear Counter
};
//SAYALI PATHAK 17 FEB 2017
/* Timer_A Compare Configuration Parameter */
const Timer_A_CompareModeConfig compareConfig =
{
TIMER_A_CAPTURECOMPARE_REGISTER_1, // Use CCR1
TIMER_A_CAPTURECOMPARE_INTERRUPT_DISABLE, // Disable CCR interrupt
TIMER_A_OUTPUTMODE_SET_RESET, // Toggle output but
163.84, // 160 Period
};
/* Statics */
static volatile uint8_t resPos;
//*************************************************************************************
//Main code
int main(void)
{
//Stop watchdog timer
WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD;
//SAYALI PATHAK 17 FEB 2017
resPos = 0;
//this port pins is used as a UART pin
// P1->DIR |= BIT0;
//P1->OUT &= ~BIT0;
// Configure GPIO
P5->SEL1 |= BIT4; // Configure P5.4 for ADC
P5->SEL0 |= BIT4;
// UNUSED pin setup
P10->DIR &= ~(BIT0 + BIT1 + BIT2 + BIT3); // set P10 as input direction
P10->REN |= BIT0 + BIT1 + BIT2 + BIT3; //enable pull-up/pull-down resistors on P10
P10->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3); //Set P10 resistors to pull down
P1->DIR &= ~(BIT1 + BIT4 + BIT5 + BIT6 + BIT7);
P1->REN |= BIT1 + BIT4 + BIT5 + BIT6 + BIT7;
P1->OUT &= ~(BIT1 + BIT4 + BIT5 + BIT6 + BIT7);
P2->DIR &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P2->REN |= BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7;
P2->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P8->DIR &= BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7;
P8->REN |= BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7;
P8->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P9->DIR &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5);
P9->REN |= BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 ;
P9->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5);
P6->DIR &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P6->REN |= BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7;
P6->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P4->DIR &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P4->REN |= BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7;
P4->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P5->DIR &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P5->REN |= BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7;
P5->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7);
P7->DIR &= ~(BIT0 + BIT1 + BIT2 + BIT3);
P7->REN |= BIT0 + BIT1 + BIT2 + BIT3;
P7->OUT &= ~(BIT0 + BIT1 + BIT2 + BIT3);
//SAYALI PATHAK 17 FEB 2017
/* Setting up clocks
* MCLK = MCLK = 3MHz
* ACLK = REFO = 32Khz */
MAP_CS_initClockSignal(CS_ACLK, CS_REFOCLK_SELECT, CS_CLOCK_DIVIDER_1);
/* Initializing ADC (MCLK/1/1) */
// MAP_ADC14_enableModule();
// MAP_ADC14_initModule(ADC_CLOCKSOURCE_MCLK, ADC_PREDIVIDER_1, ADC_DIVIDER_1,0);
/* Configuring GPIOs (5.5 A0) */
/* MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P5, GPIO_PIN5,
GPIO_TERTIARY_MODULE_FUNCTION);*/
/* Configuring ADC Memory */
// MAP_ADC14_configureSingleSampleMode(ADC_MEM0, true);
// MAP_ADC14_configureConversionMemory(ADC_MEM0, ADC_VREFPOS_AVCC_VREFNEG_VSS, ADC_INPUT_A1, false);
/* Configuring Timer_A in continuous mode and sourced from ACLK */
MAP_Timer_A_configureUpMode(TIMER_A0_BASE, & upModeConfig);
/* Configuring Timer_A0 in CCR1 to trigger at 163.84 (0.005s) */
MAP_Timer_A_initCompare(TIMER_A0_BASE, &compareConfig);
/* Configuring the sample trigger to be sourced from Timer_A0 and setting it to automatic iteration after it is triggered*/
// MAP_ADC14_setSampleHoldTrigger(ADC_TRIGGER_SOURCE1, false);
/* Enabling the interrupt when a conversion on channel 1 is complete and enabling conversions */
// MAP_ADC14_enableInterrupt(ADC_INT0);
// MAP_ADC14_enableConversion();
/* Enabling Interrupts */
// MAP_Interrupt_enableInterrupt(INT_ADC14);
// MAP_Interrupt_enableMaster();
/* Starting the Timer */
MAP_Timer_A_startCounter(TIMER_A0_BASE, TIMER_A_UP_MODE);
/* Going to sleep
while (1)
{
MAP_PCM_gotoLPM0();
}*/
//sayali pathak 16 feb 2017
/*Transition to VCORE Level 1: AM0_LDO --> AM1_LDO */
/* Get current power state, if it's not AM0_LDO, error out */
currentPowerState = PCM->CTL0 & PCM_CTL0_CPM_MASK;
if (currentPowerState != PCM_CTL0_CPM_0)
error();
while ((PCM->CTL1 & PCM_CTL1_PMR_BUSY));
PCM->CTL0 = PCM_CTL0_KEY_VAL | PCM_CTL0_AMR_1;
while ((PCM->CTL1 & PCM_CTL1_PMR_BUSY));
if (PCM->IFG & PCM_IFG_AM_INVALID_TR_IFG)
error(); // Error if transition was not successful
if ((PCM->CTL0 & PCM_CTL0_CPM_MASK) != PCM_CTL0_CPM_1)
error(); // Error if device is not in AM1_LDO mode
/* Configure Flash wait-state to 1 for both banks 0 & 1 */
FLCTL->BANK0_RDCTL = (FLCTL->BANK0_RDCTL & ~(FLCTL_BANK0_RDCTL_WAIT_MASK)) |
FLCTL_BANK0_RDCTL_WAIT_1;
FLCTL->BANK1_RDCTL = (FLCTL->BANK0_RDCTL & ~(FLCTL_BANK1_RDCTL_WAIT_MASK)) |
FLCTL_BANK1_RDCTL_WAIT_1;
//SAYALI PATHAK 9 FEB 2017
// Configure DCO to 48MHz, ensure MCLK uses DCO as source
CS->KEY = CS_KEY_VAL ; // Unlock CS module for register access
CS->CTL0 = 0; // Reset tuning parameters
CS->CTL0 = CS_CTL0_DCORSEL_5; // Set DCO to 48MHz
CS->CTL1 = (CS->CTL1 & ~(CS_CTL1_SELM_MASK | CS_CTL1_DIVM_MASK)) | CS_CTL1_SELM_3; // Select MCLK = DCO, no divider
CS->KEY = 0; // Lock CS module from unintended accesses
//ADC Setup
ADC14->CTL0 = ADC14_CTL0_SHT0_2 | ADC14_CTL0_SHP | ADC14_CTL0_ON; // Sampling time, S&H=16, ADC14 on
// ADC14->CTL1 = ADC14_CTL1_RES_2; // Use sampling timer, 12-bit conversion results
ADC14->CTL1 = ADC14_CTL1_RES_3; // Use sampling timer, 14-bit conversion results
ADC14->MCTL[0] |= ADC14_MCTLN_INCH_1; // A1 ADC input select; Vref=AVCC
// ADC14->IER0 |= ADC14_IER0_IE0; // Enable ADC conv complete interrupt
/* // Timer32 set up in one-shot, free run, 32-bit, no pre-scale
TIMER32_1->CONTROL = TIMER32_CONTROL_SIZE |
TIMER32_CONTROL_ONESHOT;
// Load Timer32 Counter with initial value
TIMER32_1->LOAD= 0xFFFFFF;
// Enable the Timer32 interrupt in NVIC
__enable_irq();
NVIC->ISER[0] = 1 << ((T32_INT1_IRQn) & 31);
// Start Timer32 and enable interrupt
TIMER32_1->CONTROL |= TIMER32_CONTROL_ENABLE |
TIMER32_CONTROL_IE;
// Disable sleep on exit from ISR
SCB->SCR &= ~SCB_SCR_SLEEPONEXIT_Msk;
// Enter LPM0 and wait for the timer interrupt to wake-up
__sleep();
__no_operation();*/
while (1)
{
if(l == 1)
{
// Timer32 set up in periodic ,free run, 32-bit, no pre-scale
TIMER32_1->CONTROL = TIMER32_CONTROL_SIZE | TIMER32_CONTROL_ONESHOT;
// Load Timer32 Counter with initial value
TIMER32_1->LOAD= 0xFFFFFF;
// TIMER32_1->LOAD= 0xFFFF;
// Enable the Timer32 interrupt in NVIC
__enable_irq();
NVIC->ISER[0] = 1 << ((T32_INT1_IRQn) & 31);
// Disable sleep on exit from ISR
SCB->SCR &= ~SCB_SCR_SLEEPONEXIT_Msk;
// Start Timer32 and enable interrupt
TIMER32_1->CONTROL |= TIMER32_CONTROL_ENABLE | TIMER32_CONTROL_IE;
// Enter LPM0 and wait for the timer interrupt to wake-up
// __sleep();
// __no_operation();
// sayali pathak 21 feb 2017
switch (vsenseout)
{
case 1: 0x800<=vsenseout<=0x974;
// lAngle = 0x974 + (0x3974*vsenseout/0x174);
lAngle = 0x974 + (0x27*vsenseout);
break;
case 2:0x974<vsenseout<=0x1666;
//lAngle = 0x1666 + (0x2C5D*vsenseout/0xCF2);
lAngle = 0x1666 + (0x03*vsenseout);
break;
case 3: 0x1666<vsenseout<=0x1D87;
//lAngle = 0x1D87 + (0x2C5D*vsenseout/0x721);
lAngle = 0x1D87 + (0x06*vsenseout);
break;
case 4:0x1D87<vsenseout<=0x2517;
//lAngle = 0x2517 + (0x2C5D*vsenseout/0x790);
lAngle = 0x2517 + (0x05*vsenseout);
break;
case 5: 0x2517<vsenseout<=0x2C5D;
//lAngle = 0x2C5D + (0x2C5D*vsenseout/0x746);
lAngle = 0x2C5D + (0x06*vsenseout);
break;
case 6: 0x2C5D<vsenseout<=0x3358;
//lAngle = 0x3358 + (0x2C5D*vsenseout/0x6FB);
lAngle = 0x3358 + (0x06*vsenseout);
break;
case 7: 0x3358<vsenseout<=0x3974;
//lAngle = 0x3974 + (0x2C5D*vsenseout/0x61C);
lAngle = 0x3974 + (0x07*vsenseout);
break;
case 8 : 0x3974<vsenseout<=0x41E4;
//lAngle = 0x41E4 + (0x3974*vsenseout/0x870);
lAngle = 0x41E4 + (0x06*vsenseout);
break;
default :
lAngle = 0x5555; //error
break;
}
m++;
if (m>50000)
{
m=0;
}
l=0;
}
}
}
void T32_INT1_IRQHandler(void)
{
// P1->OUT ^= BIT0; // Toggle P1.0 LED
// Start sampling/conversion
ADC14->CTL0 |= ADC14_CTL0_ENC | ADC14_CTL0_SC;
n++;
if (n==50000)
{
n=0;
}
TIMER32_1->INTCLR |= BIT0; // Clear Timer32 interrupt flag
// Disable the timer and interrupt
TIMER32_1->CONTROL &= ~(TIMER32_CONTROL_ENABLE |TIMER32_CONTROL_IE);
l= 1;
}
//SAYALI PATHAK 16 FEB 2017
void error(void)
{
volatile uint32_t i;
// while (1)
// {
// P1->OUT ^= BIT0;
// for(i = 20000; i > 0; i--); // Blink LED forever
// }
}
//SAYALI PATHAK 17 FEB 2017
/* This interrupt is fired whenever a conversion is completed and placed in ADC_MEM0
void ADC14_IRQHandler(void)
{
uint64_t status;
status = MAP_ADC14_getEnabledInterruptStatus();
MAP_ADC14_clearInterruptFlag(status);
// if (status & ADC_INT0)
// {
// resultsBuffer[resPos++] = MAP_ADC14_getResult(ADC_MEM0);
// }
}*/
what i can do?? this is happened when i am adding the code for 48Mhz frequency and sampling frequency setting.
