MSP430FR5994: Integer values are not printing in UART Terminal.

Selvakumaran I

Part Number: MSP430FR5994

Hi,

I am trying to print the sensor values in the UART terminal, I can able to print the values using print in debugging mode. But, I wanted to print the values in the UART terminal for real-time monitoring.

I am able to print the char 'A' and string, But, I can't print the integer sensor values in Terminal. I am using the driver lib Library in my code.

Clock setting is:

       //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);

    EUSCI_A_UART_initParam param = {0};
    param.selectClockSource = EUSCI_A_UART_CLOCKSOURCE_SMCLK; // EUSCI_A_UART_CLOCKSOURCE_SMCLK; //EUSCI_A_UART_CLOCKSOURCE_ACLK;
    param.clockPrescalar = 8; // 115200-8 9600-3;
    param.firstModReg = 0;
    param.secondModReg = 214; //115200-214; 9600-92;
    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;

Please let me know where I did wrong.

over 4 years ago

0 Dennis Lehman over 4 years ago

TI__Guru 71216 points

It looks like you clock and UART configuration are fine, since you are able to print strings.

For printing integers, have you tried something like this?

#include <stdio.h>

int main ()
{
   int value = 10;

   printf("value = %d\n", value);


   return(0);
}

0 Selvakumaran I over 4 years ago in reply to Dennis Lehman

Prodigy 185 points

Yes, I tried this in debugging mode. it's working fine. Now, I need to print this in UART Terminal.

0 Keith Barkley over 4 years ago in reply to Selvakumaran I

Guru 42205 points

How are you printing the integer? do you want binary or ASCII data?

Do you have a system to print strings?

You showed us the wrong code. Show us how you print the integer.

I am pretty sure you *are* printing the integer, but the terminal is interpreting the binary value as a control character.

0 Dennis Lehman over 4 years ago in reply to Keith Barkley

TI__Guru 71216 points

Hi Selvakumaran,

Do you still need assistance?

+1 Selvakumaran I over 4 years ago in reply to Keith Barkley

Prodigy 185 points

Hi Keith,

I am able to print the integer in the terminal, You are right I am able to print the string in the terminal. I used this code line to print the Integer in the terminal.

       str[Index1] = (temp / 100) + 48;
       Index1++;
       str[Index1] = (temp / 10) + 48;
       Index1++;
       str[Index1] = (temp % 10) + 48;

Thanks,

0 Keith Barkley over 4 years ago in reply to Selvakumaran I

Guru 42205 points

You might want to allow for a minus sign.

And, this might not work if the temperature is over 100, try it by hand.

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MSP430FR5994: Integer values are not printing in UART Terminal.