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

 

posted on 2013-05-14 13:46  红色理想  阅读(814)  评论(0)  编辑  收藏  举报

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