microblaze c code for nexys2.

i want use seven segment with microblaze. can anyone send me an example c code?

phoenixx said:

i want use seven segment with microblaze. can anyone send me an example c code?

Click to expand...

/*

(blink.c)

- Short program showing how to use simple memory-mapped I/O
- Implements a counter on the 7-segment displays by...
- Generating a new piece of data to display through table lookup
- Displaying that piece of data for a visible amount of time

*/


// Located in: microblaze_0/include/xparameters.h
#include "xparameters.h"
#include "mb_interface.h"
#include "stdio.h"
#include "xutil.h"

//====================================================

int main (void) {


// Base address of register that controls LED output
volatile int* regLED = (int*)0x40020000;

// Values... 0 1 2 3 4 5 6 7 8 9
const int lookupTable [] = {(0x02),(0x9E),(0x24),(0x0C),(0x98),(0x48),(0x40),(0x1E),(0x00),(0x18)};

// Loop variables
int a, x, counter = 0;

// "Value" to display on LEDs
int val;

print("**** BEGIN ****\r\n");

// Number of times to loop through display sequence
while(counter < 10){

// Increment counter
counter++;

// Count from 0 to 9 on the LEDs
x = 0;
for (x=0; x < 10; x++){

// Change the displayed value
val = lookupTable[x] << 4;

xil_printf("Current Value = **0x%x**\r\n",val);

// Hold a value for a visible amount of time
for (a=0; a < 5000000; a++){
*regLED = val;
}
}

}

*regLED = 0xFE << 4;

print("**** END ****\r\n");
return 0;
}


-- Hope this helps...

thanks. it works but it doesn't count. all digits are zeros.