vc生成MIF文件，ROM使用

 1 #include <stdio.h>

 2 #include <string.h>

 3 #include"stdlib.h"

 4 

 5 unsigned char src[640*481];

 6 unsigned char dst[640*481];

 7 /*--  文字:  1  --*/

 8 /*--  微软雅黑24;  此字体下对应的点阵为：宽x高=20x42   --*/

 9 /*--  宽度不是8的倍数，现调整为：宽度x高度=24x42  --*/

10 unsigned char number1[]=

11 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

12 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x00,0x0F,0xFC,

13 0x00,0x3F,0xFC,0x00,0x3F,0xFC,0x00,0x3F,0xFC,0x00,0x3D,0xFC,0x00,0x01,0xFC,0x00,

14 0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,

15 0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,

16 0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x3F,0xFF,0xE0,0x3F,0xFF,0xE0,

17 0x3F,0xFF,0xE0,0x3F,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

18 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};

19 main()

20 {

21 FILE *fp;

22 unsigned long  i,j,m;

23 int c;

24 unsigned char ch;

25 

26  if ((fp=fopen("test.mif","wb+"))==NULL)//打开MIF源文件

27         { /* 以只读方式打开文件1 */

28             printf("cannot open file1\n");

29             exit(0);

30             //return(0);

31         }

32 

33 fprintf(fp,"WIDTH=%d;\n",1); //写入mif 存储数据宽度 

34 

35 fprintf(fp,"DEPTH=%d;\n",262144); //写入mif 存储数据总量 

36 

37 fprintf(fp,"\n"); 

38 

39 fprintf(fp,"ADDRESS_RADIX=DEC;\n"); //十进制表示地址 

40 

41 fprintf(fp,"DATA_RADIX=HEX;\n"); //十六进制表示数据 

42 

43 fprintf(fp,"CONTENT BEGIN;\n"); //内容开始 

44 

45 fprintf(fp,"\n"); 

46 

47 i=0;

48 m=0;

49 

50 //for(i=0;i<512;i++)

51     for(j=0;j<24*42/8;j++)

52         {

53             for(i=0;i<8;i++)

54                 {

55                 if((number1[j]>>i)&0x01==1)

56                     fprintf(fp,"\t%d\t:\t%x;\n",m,1); 

57                 else

58                     fprintf(fp,"\t%d\t:\t%x;\n",m,0);    

59                 m++;    

60                 }

61         }

62 i,j,

63 //fseek(fp, 0, SEEK_SET); 

64 fprintf(fp,"\n"); 

65 fprintf(fp,"END;"); 

66 fclose(fp);

67 }

View Code

 

1、MIF文件格式

http://quartushelp.altera.com/13.0/mergedProjects/reference/glossary/def_mif.htm

%  multiple-line comment  

multiple-line comment  %      

                                    

-- single-line comment

 

DEPTH = 32;                   -- The size of memory in words
WIDTH = 8;                    -- The size of data in bits
ADDRESS_RADIX = HEX;          -- The radix for address values
DATA_RADIX = BIN;             -- The radix for data values
CONTENT                       -- start of (address : data pairs)
BEGIN

00 : 00000000;                -- memory address : data
01 : 00000001;
02 : 00000010;
03 : 00000011;
04 : 00000100;
05 : 00000101;
06 : 00000110;
07 : 00000111;
08 : 00001000;
09 : 00001001;
0A : 00001010;
0B : 00001011;
0C : 00001100;

END;

 

 

Address : Data Pairs Syntax Rules	Definition	Example
A : D	Addr[A] = D	2 : 4 Address: 01234567 Data:    00400000
[A0..A1] : D	Addr[A0] to [A1] contain data D	[0..7] : 6 Address: 01234567 Data:    66666666
[A0..A1] : D0 D1	Addr[A0] = D0, Addr[A0+1] = D1, Add [A0+2] = D0, Addr[A0+3] = D1, until A0+n = A1	[0..7] : 5 6 Address: 01234567 Data:    56565656
A : D0 D1 D2	Addr[A] = D0, Addr[A+1] = D1, Addr[A+2] = D2	2 : 4 5 6 Address: 01234567 Data:    00456000

2、VC生成代码 

 

 1 #include <stdio.h>

 2 #include <string.h>

 3 #include"stdlib.h"

 4 

 5 unsigned char src[640*481];

 6 unsigned char dst[640*481];

 7 /*--  文字:  1  --*/

 8 /*--  微软雅黑24;  此字体下对应的点阵为：宽x高=20x42   --*/

 9 /*--  宽度不是8的倍数，现调整为：宽度x高度=24x42  --*/

10 unsigned char number1[]=

11 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

12 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x00,0x0F,0xFC,

13 0x00,0x3F,0xFC,0x00,0x3F,0xFC,0x00,0x3F,0xFC,0x00,0x3D,0xFC,0x00,0x01,0xFC,0x00,

14 0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,

15 0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,

16 0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x3F,0xFF,0xE0,0x3F,0xFF,0xE0,

17 0x3F,0xFF,0xE0,0x3F,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

18 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};

19 main()

20 {

21 FILE *fp;

22 unsigned long  i,j,m;

23 int c;

24 unsigned char ch;

25 

26  if ((fp=fopen("test.mif","wb+"))==NULL)//打开MIF源文件

27         { /* 以只读方式打开文件1 */

28             printf("cannot open file1\n");

29             exit(0);

30             //return(0);

31         }

32 

33 fprintf(fp,"WIDTH=%d;\n",1); //写入mif 存储数据宽度 

34 

35 fprintf(fp,"DEPTH=%d;\n",262144); //写入mif 存储数据总量 

36 

37 fprintf(fp,"\n"); 

38 

39 fprintf(fp,"ADDRESS_RADIX=DEC;\n"); //十进制表示地址 

40 

41 fprintf(fp,"DATA_RADIX=HEX;\n"); //十六进制表示数据 

42 

43 fprintf(fp,"CONTENT BEGIN;\n"); //内容开始 

44 

45 fprintf(fp,"\n"); 

46 

47 i=0;

48 m=0;

49 

50 //for(i=0;i<512;i++)

51     for(j=0;j<24*42/8;j++)

52         {

53             for(i=0;i<8;i++)

54                 {

55                 if((number1[j]>>i)&0x01==1)

56                     fprintf(fp,"\t%d\t:\t%x;\n",m,1); 

57                 else

58                     fprintf(fp,"\t%d\t:\t%x;\n",m,0);    

59                 m++;    

60                 }

61         }

62 i,j,

63 //fseek(fp, 0, SEEK_SET); 

64 fprintf(fp,"\n"); 

65 fprintf(fp,"END;"); 

66 fclose(fp);

67 }

View Code

 1 #include <stdio.h>

 2 #include <string.h>

 3 #include"stdlib.h"

 4 

 5 unsigned char src[640*481];

 6 unsigned char dst[640*481];

 7 /*--  文字:  1  --*/

 8 /*--  微软雅黑24;  此字体下对应的点阵为：宽x高=20x42   --*/

 9 /*--  宽度不是8的倍数，现调整为：宽度x高度=24x42  --*/

10 unsigned char number1[]=

11 {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

12 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7C,0x00,0x0F,0xFC,

13 0x00,0x3F,0xFC,0x00,0x3F,0xFC,0x00,0x3F,0xFC,0x00,0x3D,0xFC,0x00,0x01,0xFC,0x00,

14 0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,

15 0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,

16 0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x01,0xFC,0x00,0x3F,0xFF,0xE0,0x3F,0xFF,0xE0,

17 0x3F,0xFF,0xE0,0x3F,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

18 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};

19 main()

20 {

21 FILE *fp;

22 unsigned long  i,j,m;

23 int c;

24 unsigned char ch;

25 

26  if ((fp=fopen("test.mif","wb+"))==NULL)//打开MIF源文件

27         { /* 以只读方式打开文件1 */

28             printf("cannot open file1\n");

29             exit(0);

30             //return(0);

31         }

32 

33 fprintf(fp,"WIDTH=%d;\n",1); //写入mif 存储数据宽度 

34 

35 fprintf(fp,"DEPTH=%d;\n",262144); //写入mif 存储数据总量 

36 

37 fprintf(fp,"\n"); 

38 

39 fprintf(fp,"ADDRESS_RADIX=DEC;\n"); //十进制表示地址 

40 

41 fprintf(fp,"DATA_RADIX=HEX;\n"); //十六进制表示数据 

42 

43 fprintf(fp,"CONTENT BEGIN;\n"); //内容开始 

44 

45 fprintf(fp,"\n"); 

46 

47 i=0;

48 m=0;

49 

50 //for(i=0;i<512;i++)

51     for(j=0;j<24*42/8;j++)

52         {

53             for(i=0;i<8;i++)

54                 {

55                 if(((number1[j]<<i)&0x80)==0x80)

56                     fprintf(fp,"\t%d\t:\t%x;\n",m,1); 

57                 else

58                     fprintf(fp,"\t%d\t:\t%x;\n",m,0);    

59                 m++;    

60                 }

61         }

62 i,j,

63 //fseek(fp, 0, SEEK_SET); 

64 fprintf(fp,"\n"); 

65 fprintf(fp,"END;"); 

66 fclose(fp);

67 }

View Code

 

 3、ROM的建立

tool---megwizard ----creat----memory compiler ------ROM-1PORT-----在 mif init选项中添加 mif文件

 

4、注意事项

    位宽 深度的匹配，，，此例子为vc写入的char型数据的0和1即 FPGA可以认为是二进制的，即ROM的位宽为1位