[lwip-users] How to implement VGA and PS2 on Xilinx Spartan 3E Starter Kit

[Jian Rong @ Makoto]

Dear everyone,

 

                Anyone has successfully implemented and run VGA functios and PS2 port on Xilinx Spartan 3E Starter Kit?

 

                I had problems running the VGA port on it. The FPGA is configured according to the Starter kit user guide, and a simple TestApp.c file is downloaded into the board to run   but when connected the board to my LCD monitor, there is no display on the monitor.  In the TestApp.c file :

 

#include "xparameters.h"
#include <mb_interface.h>
#include "xutil.h"
#include "xgpio.h"
#include "xgpio_l.h"

/* External Instance Pointers for Xilinx Peripherals */
//extern XGpio Switches;
//extern XGpio LEDs;

/*
 * Routine to used as a "wait states"
 */
void wait(int x) {
  int y;

  for (y = 0; y < x; y++);

}

/*
 * Routine to write a pattern out to a GPIO
 * which is configured as an output
 *   PARAMETER C_ALL_INPUTS = 0
 */
void WriteToGPOutput(Xuint32 BaseAddress, int gpio_width) {
   int i=0, j=0, k=0;
   int numTimes = 1;
 
   XGpio_mSetDataDirection(BaseAddress, 1, 0x00000000);   /* Set as outputs */
   while (numTimes > 0) {
      j = 1;
      for(i=0; i<(gpio_width-1); i++) {
         XGpio_mSetDataReg(BaseAddress, j, 0x00000000);
         j = j << 1;
         for (k=0; k<1000000; k++) {
            ; //wait
         }
      }
      j = 1;
      j = ~j;
      for(i=0; i<(gpio_width-1); i++) {
         XGpio_mSetDataReg(BaseAddress, j, 0x00000000);
         j = j << 1;
         for (k=0; k<1000000; k++) {
            ; //wait
         }
      }
      numTimes--;
   }
}

/*
 * Routine to read data from a GPIO
 * which is configured as an input
 *   PARAMETER C_ALL_INPUTS = 1
 */
Xuint32 ReadFromGPInput(Xuint32 BaseAddress) {
   Xuint32 data = "" 1);
   return data;
}

     

int main (void) {
unsigned int input, data;
int qwe;

print("-- Entering main() --\n\r");

//vga_test();
scr_init();
xil_printf("VGA Initialization done.");
//draws a grid coordinate for the character map on the VGA port for a 800x600 screen
for(qwe=0;qwe<100;qwe++)
   {
   scr_write_char(qwe,2,'0'+(qwe%10),'b');
   if(qwe%10==0)
    scr_write_char(qwe,1,'0'+(qwe/10),'b');
   if(qwe<73)
      scr_write_char(2,qwe,'0'+(qwe%10),'a'); 
  if(qwe%10==0)
      scr_write_char(1,qwe,'0'+(qwe/10),'a'); 
   }

// Writes "Spartan-3E Starter Kit Board!" to the VGA screen starting at
// row 10 column 10 and goes increase colum numbers as it changes colors
// to show all 8 colors
for(qwe=0;qwe<8;qwe++)
{
 scr_write_chars(10, (10+qwe), ('a'+qwe), "Spartan-3E Starter Kit Board!", 28);
}

//draws a horizontal line start at grid coordiate(x,y) 5,5 and spans for 15 characters
scr_draw_horiz_line (5, 5, 'd', 15);

//draws a vertical line start at grid coordiate(x,y) 8,8 and spans for 17 characters
scr_draw_vert_line (8, 8, 'e', 17);

// shows how to use the character fill driver displaying SPARTAN-3 15 times
// vertically with every letter in a different color starting at coordinate (20,20)
// color
// NOte the color 'h' is black and cannot be seen with a black background.
{
scr_fill_char  (20, 20, 'S', 'a', 15);
scr_fill_char  (21, 21, 'P', 'b', 15);
scr_fill_char  (22, 22, 'A', 'c', 15);
scr_fill_char  (23, 23, 'R', 'd', 15);
scr_fill_char  (24, 24, 'T', 'e', 15);
scr_fill_char  (25, 25, 'A', 'f', 15);
scr_fill_char  (26, 26, 'N', 'g', 15);
scr_fill_char  (27, 27, '-', 'h', 15);
scr_fill_char  (28, 28, '3', 'i', 15);

}

// Writes "Spartan-3 Starter Kit Board!" to the VGA screen starting at
// row 60 column 60 and goes increase colum numbers as it changes colors
// to show all 8 colors

for(qwe=0;qwe<8;qwe++)
{
 scr_write_chars(60, (60+qwe), ('a'+qwe), "Spartan-3E Starter Kit Board!", 28);
}
   

//reads the switch value and outputs values to the screen
{
  Xuint32 dataB = ReadFromGPInput(XPAR_DIP_SWITCHES_4BIT_BASEADDR);
  xil_printf("Data read from DIP_Switches_4Bit: 0x%x\n\r\n\r", dataB);
}

//testing RS232 input
// reads a number from the RS232 (UART) port and diplays it to the 7-segment display
print("-- Please enter any number to test the input of the RS232 --\n\r");
input = XUartLite_RecvByte(XPAR_RS232_DTE_BASEADDR); 

print("The number entered in the RS232 port should be displayed on the 7-segment display.\n\r\n\r"); 
 
// testing PS/2 port
{
  print("-- Please enter any number or character on the PS/2 keyboard --\n\r");
  data = "">  xil_printf("pressed %c on the PS/2 Keyboard\n\r",data); 
}

print("-- Exiting main() --\n\r");
return 0;
}

Yours sincerely,

Jian Rong @ Makoto

http://www.amtfpureland.com.cn/

http://buddha.goodweb.cn/music/music1.htm

 

 

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