Mercurial > flash_v2

annotate packages/hal/sh/cq7708/current/misc/mkcqrom.c @ 94:4642a6d35749 ecos-sw-2000-06-02

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Merge from eCos master repository on 2000-06-02-07:47:04-BST
author jlarmour
date Fri, 02 Jun 2000 17:35:00 +0000
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94
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1 /* Split ROM data Program for CqREEK SH-3 (Thanks Yamanaka-san) */
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2 /* Nihon Cygnus Solutions KASHIWAYA Haruki '00-4-13 */
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3
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4 /* This program separate ROM data for one ROM socket.
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5 The cq board has two ROM sockets, and those bus size can
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6 switch to 8bit or 16bit with JP6.
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7 If your program is smaller than 32kByte, you can use
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8 a 256k bit ROM with 8bit bus mode.
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9 However, the board curcuit connection is peculiar.
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10 A0 is connected to A14 in 8bit bus mode (See the curcuit diagram),
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11 this mean's all odd data are assigned from 0x4000 offset.
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12 You must use this program and separate ROM data when you use
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13 a 256k bit ROM with 8bit bus mode.
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14
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15 If your program is bigger than 32kByte, simply, you can use
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16 two 256k bit(or bigger) ROM with 16bit bus mode.
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17 You do *not* need to use this program.
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18 (Details, separate ROM data to odd and even, and write each data to
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19 each ROMs, and attach odd's ROM to IC4, even's ROM to IC8.)
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20
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21 */
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22
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23 #include <stdio.h>
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24 #include <errno.h>
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25
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26 #define ROMSIZE (32 * 1024)
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27
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28 main(int argc, char **argv)
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29 {
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30 FILE *fpr, *fpw;
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31 int i, c;
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32 char *s, *p;
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33
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34 if(argc != 3) {
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35 printf("Usage: mkcqrom <input-filename> <output-filename>\n Please see comments in mkcqrom.c.\n");
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36 exit(1);
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37 }
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38
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39 p = (char *)malloc(ROMSIZE);
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40 if(p == NULL) {
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41 printf("malloc error\n");
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42 exit(1);
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43 }
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44 fpr = fopen(*++argv, "rb");
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45 if(fpr == NULL) {
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46 printf("open error %s %d\n", *argv, errno);
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47 exit(1);
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48 }
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49 memset(p, 0xff, ROMSIZE);
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50
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51 /* split even data to 0x4000 offset (A0 is assigned to A14) */
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52 i = 0;
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53 while(1) {
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54 c = getc(fpr);
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55 if(c == EOF) break;
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56 s = p + (i / 2) + (i % 2) * 0x4000;
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57 *s = (char)c;
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58 i++;
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59 }
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60 fclose(fpr);
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61
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62 fpw = fopen(*++argv, "wb");
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63 if(fpw == NULL) {
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64 printf("open error %s %d\n", *argv, errno);
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65 exit(1);
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66 }
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67 fwrite(p, ROMSIZE, sizeof(char), fpw);
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68 fclose(fpw);
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69 }
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