MSP430FG4618/2013 Experimenter Board LCD write

Development Boards MicroMod
1

I have try to play around with the LCD example that they have provided.

I am trying to write a value into the LCD but can’t seem to get it in there.

It always shows the clock running.

Attached is the code for it.

I am trying to display a “displayTach();” value on to the LCD.

If someone can help me find a way to write numbers and text to the LCD, will be greatly apprieciated.

Thanks again.

//******************************************************************************

// MSP430xG46x Demo - Software Toggle P5.1

//

// Description: Toggle P5.1 by xor’ing P5.1 inside of a software loop.

// ACLK = 32.768kHz, MCLK = SMCLK = default DCO

//

// MSP430xG461x

// -----------------------

// /|| |

// | | P2.2|–>LED1

// --|RST P2.1|–>LED2

// | P5.1|–>LED4

// | |

// SW1–>|P1.0 | SoftBaugh SBLCDA4 4-mux LCD

// SW2–>|P1.1 P10.5/S4|–>S0–>PIN14 (1A_1B_1C_1D)

// | P10.4/S5|–>S1–>PIN13 (1F_1G_1E_DP1)

// | P10.3/S6|–>S2–>PIN12 (2A_2B_2C_2D)

// | P10.2/S7|–>S3–>PIN11 (2F_2G_2E_DP2)

// | P10.1/S8|–>S4–>PIN10 (3A_3B_3C_3D)

// | P10.0/S9|–>S5–>PIN9 (3F_3G_3E_COL3)

// | P9.7/S10|–>S6–>PIN8 (4A_4B_4C_4D)

// | P9.6/S11|–>S7–>PIN7 (4F_4G_4E_DP4)

// | P9.5/S12|–>S8–>PIN6 (5A_5B_5C_5D)

// | P9.4/S13|–>S9–>PIN5 (5F_5G_5E_COL5)

// | P9.3/S14|–>S10->PIN4 (6A_6B_6C_6D)

// | P9.2/S15|–>S11->PIN3 (6F_6G_6E_DP6)

// | P9.1/S16|–>S12->PIN2 (7A_7B_7C_7D)

// | P9.0/S17|–>S13->PIN1 (7F_7G_7E_DP7)

// | P8.7/S18|–>S14->PIN19 (F5_PR_P4_P3)

// | P8.6/S19|–>S15->PIN20 (F1_F2_F3_F4)

// | P8.5/S20|–>S16->PIN21 (PL_P0_P1_P2)

// | P8.4/S21|–>S17->PIN22 (AU_AR_AD_AL)

// | P8.3/S22|–>S18->PIN23 (BT_B1_B0_BB)

// | P8.2/S23|–>S19->PIN24 (ANT_A2_A1_A0)

// | P8.1/S24|–>S20->PIN25 (ENV_TX_RX_8BC)

// | P8.0/S25|–>S21->PIN26 (DOL_ERR_MINUS_MEM)

// | COM3|–>COM3 (COM3)

// | COM2|–>COM2 (COM2)

// | COM1|–>COM1 (COM1)

// | COM0|–>COM0 (COM0)

// | |

//

//

// G. Morton

// Texas Instruments Inc.

// February 2007

// Built with IAR Embedded Workbench Version: 3.42A

//******************************************************************************

#include <Board.h>

#include <LCD.h>

//

// Function Declarations

//

void initBasicTimer(void);

void initPortPins(void);

int rpm = 1000;

void main(void)

{

WDTCTL = WDTPW + WDTHOLD; // Stop WDT

FLL_CTL0 |= XCAP18PF; // Set load cap for 32k xtal

initPortPins(); // Initialize port pins

initBasicTimer(); // Initialize basic timer

initLCD_A(); // Initialize LCD_A

testAll();

displayTach(rpm);

for(;:wink:

{

_BIS_SR(LPM3_bits + GIE); // LPM3, enable interrupts

testChar();

testSpecialChar();

testSigLvl();

testBatt();

testPwrLvl();

testFunc();

testArrow();

testSymbol();

}

}

// Basic Timer Interrupt Service Routine

#pragma vector=BASICTIMER_VECTOR

__interrupt void basic_timer_ISR(void)

{

P2OUT ^= PIN2+PIN1; // Toggle P2.2,1

P5OUT ^= PIN1; // Toggle P5.1

LPM3_EXIT;

}

//

// Initialize port pins

//

void initPortPins(void)

{

P2DIR = PIN2+PIN1; // Set P2.2,1 as outputs

P5DIR = PIN1; // Set P5.1 as output

P2OUT = PIN1; // Set P2.1 to 1

}

//

void displayTach(int rpm)

{

int start = 3;

LCDM4 = 0; // Clear LCD memory

LCDM5 = 0; // Clear LCD memory

LCDM6 = 0; // Clear LCD memory

LCDM7 = 0; // Clear LCD memory

displayValue(rpm, start); // Display the actual RPM value

}

//

// Initialize basic timer

//

void initBasicTimer(void)

{

// Basic timer setup

// Set ticker to 32768/(256*128)

// Enable BT interrupt

BTCTL = BT_fCLK2_DIV128 | BT_fCLK2_ACLK_DIV256;

IE2 |= BTIE;

}

2

OK, first off, please use the code tag to show code. It allows proper formatting.

Secondly, you don’t describe the symptoms (LCD doesn’t display, numbers are wrong, …). “clock running” doesn’t mean much to me - do you mean it displays a clock on the LCD?

Are you asking for help writing displayValue? I think that’s what you want but it’s pretty unclear. If so, think about how a number is represented in base 10. For example: 321 is 3* 100 + 2* 10 + 1. Think about how you will get each digit from the number using div and mod operations.

3

How do I do this? So I can do it right.

“use the code tag to show code. It allows proper formatting”

Clock: After I download the LCD.c code into the board. A clock start from 12:00:00 and goes on.

Yes. I am trying to displayValue. In his case, I set int rpm = 1500.

I was hoping to see the 1500 displayed on the screen.

Thanks

4

code tag - when you write a post or reply, you will see a bunch of buttons that say things like B i u Quote Code … Press random buttons to see what happens. Use Preview button at the bottom to see what they do.

From the sounds of it, you are loading some sort of clock code, not your own. I’m not even sure the code you posted ever got loaded in the msp.

5

Thanks for the tip.

I will check on the programmer.

Currently I am using the MSP-FETP430IF 1.4 programmer. It is a Parallel port device. Don’t know if it can be used on it.

6

I have got the board replaced now. And I am able to write to the board.

I tried out Ti’s example for the LCD. It cycles through the LCD.

Now, I trying to figure out how I can actually write a sec of digits to it.

Say if I save a value of 1500 on to “temp” And I want to display temp value on the LCD.

here is what I wrote.

#include <Board.h>

#include <LCD.h>

//

// Function Declarations

//

void initBasicTimer(void);

void initPortPins(void);

int temp;

void main(void)

{

WDTCTL = WDTPW + WDTHOLD; // Stop WDT

FLL_CTL0 |= XCAP18PF; // Set load cap for 32k xtal

initPortPins(); // Initialize port pins

initBasicTimer(); // Initialize basic timer

initLCD_A(); // Initialize LCD_A

temp = 1500;

for(;:wink:

{

_BIS_SR(LPM3_bits + GIE); // LPM3, enable interrupts

//dispChar(UInt8 pos, UInt8 index);

dispChar(8, temp);

}

}