4X4X4 LED cude

nexusone1984 · July 8, 2011

Been busy with a lot of other stuff... but after a little time here and there put together a 4x4x4 LED Cube.

Soldering the LED's took me forever....

I used Common Cathode configuration for the LED's, this way logic 1 turns on the LED. and Logic 1 also turns on a Row transistor.

Simple little demo.

Parts: Launchpad board, 3 x 74HC595 8-bit shift registers, 4 x 2N3904 NPN transistors, 64 Yellow LED's.

bluehash · July 9, 2011

Nice! Was wondering where you went. Good video.

Now make it better with an RGB

nexusone1984 · July 9, 2011

Thanks I am still here, Summer Vacation, etc.. works been crazy.... I get times where I have more free time then others. Still have a list of stuff on the MSP430 to make.

Nice! Was wondering where you went. Good video.

Now make it better with an RGB

nuetron · July 9, 2011

Now make it better with an RGB

I second the motion! :lol:

Theshadowwalker91 · August 25, 2011

hello. good job on the cube. i was wondering when/if you are going to put the code up for this project. i have built a 4x4x4 cube with an arduino but it cost to much to make it worth keeping. i have been wanting to make one with the msp430 because they only cost 5 bucks so i dont mind putting one together for good.

Theshadowwalker91 · November 18, 2011

hello again. i notice that the code was posted on a link. but it is for linux based software. is there anyone that can make this code work with CCS.

//  MSP430G2231  4X4X4 Matrix Cube code 
// uses three 74hc595 shift registers
#include  
#include 
#include 
#include 
#include 


void Initializeports(void);
static void __inline__delay(register unsigned int n);
int binary2bcd16( unsigned char *bcd, int t );  // 16bit
int display_led(int t, int display);
void display_refresh( void );

// Time function varibles
volatile unsigned char days = 0, hours = 0, minutes = 0, seconds = 0, e_hours = 0, e_minutes = 0, e_seconds = 0;
volatile unsigned int milliseconds = 0, milliseconds_t = 0;

// Display buffer/control 
volatile int display_buffer[8];
volatile int display_ctl[8];
volatile int display_blink = 0;
volatile int display_blink_rate;
volatile int display_position;

// Switch, mode control
char d_mode = 0, e_mode = 0, d_mode_digit = 0, switch1, switch2;
unsigned int switch1_dt, switch2_dt;
char scroll[48] = {"MSP430 Launchpad....--->Hello Yuri...Alex<--...."};

void main(void)
{
 int i, t, l;
 unsigned char  digit[5], alt_digit = 0;
 WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
//1Mhz
 BCSCTL1 = CALBC1_1MHZ;                    // Set range
 DCOCTL = CALDCO_1MHZ;                     // Set DCO step + modulation */

 CCTL0 = CCIE;                             // CCR0 interrupt enabled
 CCR0 = 1000;
 TACTL = TASSEL_2 + MC_2;                  // SMCLK, contmode

 Initializeports();


_EINT();

 /* Main Application Loop */
 while(1)
 {
display_buffer[0] = 0x0000;
display_buffer[1] = 0xffff;
display_buffer[2] = 0xffff;
display_buffer[3] = 0xffff;
for(t=0; t<80; t++)
  {
l = display_buffer[3];
display_buffer[3] = display_buffer[2];
display_buffer[2] = display_buffer[1];       
display_buffer[1] = display_buffer[0];
display_buffer[0] = l;

for(i=0;i<600;i++) __inline__delay(25); 
} 

for(t=0; t<20; t++)
   {
display_buffer[0] = 0x0000;
display_buffer[1] = 0x0000;
display_buffer[2] = 0x0000;
display_buffer[3] = 0x0000;
for(i=0;i<1200;i++) __inline__delay(100);           
display_buffer[0] = 0xffff;
display_buffer[1] = 0x0000;
display_buffer[2] = 0x0000;
display_buffer[3] = 0x0000;
 for(i=0;i<1200;i++) __inline__delay(100);
display_buffer[0] = 0xffff;
display_buffer[1] = 0xffff;
display_buffer[2] = 0x0000;
display_buffer[3] = 0x0000;
for(i=0;i<1200;i++) __inline__delay(100); 
display_buffer[0] = 0xffff;
display_buffer[1] = 0xffff;
display_buffer[2] = 0xffff;
display_buffer[3] = 0x0000;
for(i=0;i<1200;i++) __inline__delay(100); 
display_buffer[0] = 0xffff;
display_buffer[1] = 0xffff;
display_buffer[2] = 0xffff;
display_buffer[3] = 0xffff;
for(i=0;i<1200;i++) __inline__delay(100); 
  }   


for(l=0;l<20;l++)
  {

  display_buffer[t] = 0x000f;
for(i=0;i<4;i++)
   { 
display_buffer[0] = (display_buffer[0]<<4) | 0x00f;
display_buffer[1] = display_buffer[0];
display_buffer[2] = display_buffer[0];
display_buffer[3] = display_buffer[0];
   __inline__delay(20000);
   }

   for(t=0;t<4;t++)
  {
   for(i=0;i<17;i++)
   { 
display_buffer[t] = (display_buffer[t]<<1) & 0xfff7;
   __inline__delay(5000);
   }

  }
}
 }
}

int binary2bcd16( unsigned char *bcd, int t )  // 16bit to BCD conversion
{
int i;

while( i < 5)
{
bcd[i] = 0;
i++;
}

    if ( t > 9999 ) bcd[4] = t / 10000;
    if ( t > 999  ) bcd[3] = t  / 1000 - bcd[4] * 10;
    if ( t > 99 ) bcd[2] = t / 100 - (bcd[3] * 10 + bcd[4] * 100); 
    if ( t > 9 ) bcd[1] = t / 10 - (bcd[2] * 10 + bcd[3] * 100 + bcd[4] * 1000);
    bcd[0] = t - (bcd[1] * 10 + bcd[2] * 100 + bcd[3] * 1000 + bcd[4] * 10000);      

}
// Display
void display_refresh( void )
{
int d;

if ( (display_ctl[display_position] == 0x01) && (display_blink == 0x01))
   {
  d = 16;
  }else{
   d = display_buffer[display_position];
  }
display_led( d, display_position);
display_position++;
if (display_position > 3) display_position = 0;

}

// Serial out of LED data to 74HC595
int display_led(int t, int display)
{
int j, i, mask;

mask = (0x1000<
j = t; 

P1OUT &= ~BIT2;
for(i=0; i < 4; i++)
  {    
  P1OUT &= ~BIT1;
  if  (mask & 0x8000)
     {
     P1OUT |= BIT0;
     }else{
     P1OUT &= ~BIT0;
     }
P1OUT |= BIT1;
  mask = mask<<1;
  }

for(i=0; i < 16; i++)
  {    
  P1OUT &= ~BIT1;
  if  (j & 0x8000)
     {
     P1OUT |= BIT0;
     }else{
     P1OUT &= ~BIT0;
     }
P1OUT |= BIT1;
  j = j<<1;
  }
P1OUT |= BIT2;

}

// setup ports
void Initializeports(void)
{
int i = 0;
P1DIR |= 0x07;     
P1SEL = 0x00;
P1OUT = 0x18;                             // P1.4 set, else reset
P1REN |= 0x18; 
while( i < 8 )
 { 
 display_buffer[i] = 0;
 display_ctl[i] = 0;
 i++;
 }
}    

// Delay Routine from mspgcc help file
static void __inline__delay(register unsigned int n)
{
 __asm__ __volatile__ (
 "1: \n"
 " dec %[n] \n"
 " jne 1b \n"
       : [n] "+r"(n));
}

// Time keeping routine
interrupt(TIMERA0_VECTOR) Timer_A (void)
{
milliseconds++;
milliseconds_t++;
if (milliseconds > 999)
  {
  seconds++;
  milliseconds = 0;
  }

if (milliseconds_t > 59999)
  {
  milliseconds_t = 0;
  }
if ( 0x10 & ~P1IN)
  {
  switch1_dt++; 
 }else{
 switch1_dt = 0;
 }

if ( 0x08 & ~P1IN)
  {
  switch2_dt++; 
 }else{
 switch2_dt = 0;
 }

if (seconds > 59)
  { 
  minutes++;
  seconds = 0;
  }    
if (minutes > 59 )
  {
   hours++;
   minutes = 0;
  }
if (hours > 23)
   {
   hours = 0;
   days++;
   }

display_blink_rate++;  
if  (display_blink_rate > 250)  // LED Blink rate
   {
   display_blink = (~display_blink) & 0x01;   
   display_blink_rate = 0;
   }
display_refresh( ); 
CCR0 += 999;
}

gwdeveloper · November 19, 2011

Did you attempt to compile it and get the list of errors? There's only a few things that need changing...

I hope Nexusone doesn't mind but since I wanted to test this code for myself too, here it is in CCS...

//  MSP430G2231  4X4X4 Matrix Cube code
// uses three 74hc595 shift registers
#include  

#include 
#include 


void Initializeports(void);

void binary2bcd16( unsigned char *bcd, int t );  // 16bit
void display_led(int t, int display);
void display_refresh( void );

// Time function varibles
volatile unsigned char days = 0, hours = 0, minutes = 0, seconds = 0, e_hours = 0, e_minutes = 0, e_seconds = 0;
volatile unsigned int milliseconds = 0, milliseconds_t = 0;

// Display buffer/control
volatile int display_buffer[8];
volatile int display_ctl[8];
volatile int display_blink = 0;
volatile int display_blink_rate;
volatile int display_position;

// Switch, mode control
char d_mode = 0, e_mode = 0, d_mode_digit = 0, switch1, switch2;
unsigned int switch1_dt, switch2_dt;
char scroll[48] = {"MSP430 Launchpad....--->Hello Yuri...Alex<--...."};

int i, t, l;
unsigned char  digit[5], alt_digit = 0;

void main(void)
{

 WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
//1Mhz
 BCSCTL1 = CALBC1_1MHZ;                    // Set range
 DCOCTL = CALDCO_1MHZ;                     // Set DCO step + modulation */

 CCTL0 = CCIE;                             // CCR0 interrupt enabled
 CCR0 = 1000;
 TACTL = TASSEL_2 + MC_2;                  // SMCLK, contmode

 Initializeports();


_EINT();

 /* Main Application Loop */
 while(1)
 {
display_buffer[0] = 0x0000;
display_buffer[1] = 0xffff;
display_buffer[2] = 0xffff;
display_buffer[3] = 0xffff;
for(t=0; t<80; t++)
  {
l = display_buffer[3];
display_buffer[3] = display_buffer[2];
display_buffer[2] = display_buffer[1];
display_buffer[1] = display_buffer[0];
display_buffer[0] = l;

for(i=0;i<600;i++) __delay_cycles(25);
}

for(t=0; t<20; t++)
   {
display_buffer[0] = 0x0000;
display_buffer[1] = 0x0000;
display_buffer[2] = 0x0000;
display_buffer[3] = 0x0000;
for(i=0;i<1200;i++) __delay_cycles(100);
display_buffer[0] = 0xffff;
display_buffer[1] = 0x0000;
display_buffer[2] = 0x0000;
display_buffer[3] = 0x0000;
 for(i=0;i<1200;i++) __delay_cycles(100);
display_buffer[0] = 0xffff;
display_buffer[1] = 0xffff;
display_buffer[2] = 0x0000;
display_buffer[3] = 0x0000;
for(i=0;i<1200;i++) __delay_cycles(100);
display_buffer[0] = 0xffff;
display_buffer[1] = 0xffff;
display_buffer[2] = 0xffff;
display_buffer[3] = 0x0000;
for(i=0;i<1200;i++) __delay_cycles(100);
display_buffer[0] = 0xffff;
display_buffer[1] = 0xffff;
display_buffer[2] = 0xffff;
display_buffer[3] = 0xffff;
for(i=0;i<1200;i++) __delay_cycles(100);
  }


for(l=0;l<20;l++)
  {

  display_buffer[t] = 0x000f;
for(i=0;i<4;i++)
   {
display_buffer[0] = (display_buffer[0]<<4) | 0x00f;
display_buffer[1] = display_buffer[0];
display_buffer[2] = display_buffer[0];
display_buffer[3] = display_buffer[0];
   __delay_cycles(20000);
   }

   for(t=0;t<4;t++)
  {
   for(i=0;i<17;i++)
   {
display_buffer[t] = (display_buffer[t]<<1) & 0xfff7;
   __delay_cycles(5000);
   }

  }
}
 }
}

void binary2bcd16( unsigned char *bcd, int t )  // 16bit to BCD conversion
{
int i = 0;

while( i < 5)
{
bcd[i] = 0;
i++;
}

    if ( t > 9999 ) bcd[4] = t / 10000;
    if ( t > 999  ) bcd[3] = t  / 1000 - bcd[4] * 10;
    if ( t > 99 ) bcd[2] = t / 100 - (bcd[3] * 10 + bcd[4] * 100);
    if ( t > 9 ) bcd[1] = t / 10 - (bcd[2] * 10 + bcd[3] * 100 + bcd[4] * 1000);
    bcd[0] = t - (bcd[1] * 10 + bcd[2] * 100 + bcd[3] * 1000 + bcd[4] * 10000);

}
// Display
void display_refresh( void )
{
int d;

if ( (display_ctl[display_position] == 0x01) && (display_blink == 0x01))
   {
  d = 16;
  }else{
   d = display_buffer[display_position];
  }
display_led( d, display_position);
display_position++;
if (display_position > 3) display_position = 0;

}

// Serial out of LED data to 74HC595
void display_led(int t, int display)
{
int j, i, mask;

mask = (0x1000<
j = t;

P1OUT &= ~BIT2;
for(i=0; i < 4; i++)
  {
  P1OUT &= ~BIT1;
  if  (mask & 0x8000)
     {
     P1OUT |= BIT0;
     }else{
     P1OUT &= ~BIT0;
     }
P1OUT |= BIT1;
  mask = mask<<1;
  }

for(i=0; i < 16; i++)
  {
  P1OUT &= ~BIT1;
  if  (j & 0x8000)
     {
     P1OUT |= BIT0;
     }else{
     P1OUT &= ~BIT0;
     }
P1OUT |= BIT1;
  j = j<<1;
  }
P1OUT |= BIT2;

}

// setup ports
void Initializeports(void)
{
int i = 0;
P1DIR |= 0x07;
P1SEL = 0x00;
P1OUT = 0x18;                             // P1.4 set, else reset
P1REN |= 0x18;
while( i < 8 )
 {
 display_buffer[i] = 0;
 display_ctl[i] = 0;
 i++;
 }
}

// Time keeping routine
#pragma vector=TIMERA0_VECTOR
__interrupt void Timer_A(void)
{
milliseconds++;
milliseconds_t++;
if (milliseconds > 999)
  {
  seconds++;
  milliseconds = 0;
  }

if (milliseconds_t > 59999)
  {
  milliseconds_t = 0;
  }
if ( 0x10 & ~P1IN)
  {
  switch1_dt++;
 }else{
 switch1_dt = 0;
 }

if ( 0x08 & ~P1IN)
  {
  switch2_dt++;
 }else{
 switch2_dt = 0;
 }

if (seconds > 59)
  {
  minutes++;
  seconds = 0;
  }
if (minutes > 59 )
  {
   hours++;
   minutes = 0;
  }
if (hours > 23)
   {
   hours = 0;
   days++;
   }

display_blink_rate++;
if  (display_blink_rate > 250)  // LED Blink rate
   {
   display_blink = (~display_blink) & 0x01;
   display_blink_rate = 0;
   }
display_refresh( );
CCR0 += 999;
}

Theshadowwalker91 · November 20, 2011

i get an error when i try to compile.

"../main.c", line 215: error: identifier "TIMERA0_VECTOR" is undefined

1 error detected in the compilation of "../main.c".

gwdeveloper · November 20, 2011

Which mcu are you using? TIMERA0_VECTOR would be for the G2231 and most others. A G2553 will need that changed to TIMER0_A0_VECTOR.

Theshadowwalker91 · November 20, 2011

i tried both G2231 and G2252

with the G2231 i get the error

"../lnk_msp430g2231.cmd", line 56: error: run placement fails for object

".bss", size 0x81 (page 0). Available ranges:

RAM size: 0x80 unused: 0x4e max hole: 0x4c

error: errors encountered during linking; "newtest.out" not built

with the G2252 i get the error

"../main.c", line 216: error: identifier "TIMERA0_VECTOR" is undefined

1 error detected in the compilation of "../main.c".

bluehash · November 20, 2011

In the case of the 2231, you have run out of RAM space, If I'm not mistaken, by one byte.

For the second one, rename to TIMER0_A0_VECTOR

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