CCS/EVM430-FR6047: Print result in next line using UART

Divya Harikumar

Expert 2020 points

Part Number: EVM430-FR6047

Tool/software: Code Composer Studio

Hi,

Is there any method to print next value of UCA3TXBUF in next line of CCS termainal.

Can i get some help?

void main(char *data)
{

    uart_init();
    uart_baud();
    UCA3IE |= UCRXIE;                       // Enable USCI_A3 RX interrupt
    while (*data != '\0')
    {
        while (!UCTXIFG);
        UCA3TXBUF =*data;
        __delay_cycles(10000);             
        if (*data == '\n')
        {
            /*Wait for the transmit buffer to be ready*/
            while (!UCTXIFG);
            UCA3TXBUF = '\n';
        }
        data++;
    }
    __no_operation();                       // For debugger
    return ;
}

Best Regards,

Divya Harikumar

over 6 years ago

0 JD Crutchfield over 6 years ago

TI__Mastermind 29105 points

Hey Divya,

Are you wanting to see the data pointer in the CCS terminal? Are you trying to see the data while debugging or sending the data to the PC via the UART?

You can also use the printf statement to post expressions to the console window but it will drastically effect the program speed and performance because it's being paused with the JTAG. More information can be found here: processors.wiki.ti.com/.../Printf_support_for_MSP430_CCSTUDIO_compiler

You can also use the variables or expressions tabs in the top right to see what is at the pointer location using breakpoints.

Thanks,
JD

0 Divya Harikumar over 6 years ago in reply to JD Crutchfield

Expert 2020 points

Hi JD,

I am trying to see the data transmitted while debugging the UART transmission code.Right now the results are coming one after the other in the same line.

I would like to view such that the next transmitted data appears on the next line in CCS Terminal.

Could i get some help?

Regards,

DIvya Harikumar

0 JD Crutchfield over 6 years ago in reply to Divya Harikumar

TI__Mastermind 29105 points

Hey Divya,

Sounds like you just need to send a '\n' newline character after each transmit.

If that doesn't accomplish what you are trying to do, then please spost a screen shot.

Thanks,
JD

0 Keith Barkley over 6 years ago in reply to Divya Harikumar

Guru 42135 points

If you are using a '\n', you might try throwing an '\r' in there, too.

0 Bruce McKenney over 6 years ago

Guru 100355 points

> while (!UCTXIFG);
This statement has no effect, since UCTXIFG is a constant (!= 0). Try:
> while (!(UCA3IFG & UCTXIFG))/*EMPTY*/;

0 Divya Harikumar over 6 years ago in reply to Keith Barkley

Expert 2020 points

Hi Keith,

Sorry for the delay.

Where exactly must i include '\r' in my code?

Regards,

Divya Harikumar

0 Divya Harikumar over 6 years ago in reply to JD Crutchfield

Expert 2020 points

Hey JD,

It does not quite work for me as the alignment seems to be out of order.

The output viewed in CCS terminal is attached below.

Regards,

Divya Harikumar

0 Keith Barkley over 6 years ago in reply to Divya Harikumar

Guru 42135 points

You need to send it after the '\n'.
I strongly suggest that you create an interrupt handler to print strings.

0 JD Crutchfield over 6 years ago in reply to Divya Harikumar

TI__Mastermind 29105 points

Hey Divya,

As Keith mentioned, you actually need both newline '\n' and a return '\r' to move all the way back to the left. You should send these character one after the other in this order.

Thanks,
JD

0 Keith Barkley over 6 years ago in reply to Divya Harikumar

Guru 42135 points

If you don't want to create an interrupt based version, here is a blocking routine to print a string.
www.simplyembedded.org/.../

**Attention** This is a public forum

MSP low-power microcontrollers

MSP low-power microcontroller forum

CCS/EVM430-FR6047: Print result in next line using UART