OpenCores
URL https://opencores.org/ocsvn/eco32/eco32/trunk

Subversion Repositories eco32

[/] [eco32/] [trunk/] [stdalone/] [memtest/] [main.c] - Blame information for rev 306

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 213 hellwig 
/*
2 
 * main.c -- ECO32 memory test
3 
 */
4 
 
5 
 
6 
#include "types.h"
7 
#include "stdarg.h"
8 
#include "iolib.h"
9 
 
10 
 
11 
#define K               1024
12 
#define M               (K * K)
13 
#define MEM_ADDR        ((void *) (0xC0000000 + 0x10000 + 0x3000))
14 
#define MEM_SIZE        (32 * M - (0x10000 + 0x3000))
15 
#define PASSES          3
16 
 
17 
 
18 
/**************************************************************/
19 
 
20 
 
21 
unsigned int randomNumber;
22 
 
23 
 
24 
void setRandomNumber(unsigned int seed) {
25 
  randomNumber = seed;
26 
}
27 
 
28 
 
29 
unsigned int getRandomNumber(void) {
30 
  randomNumber = randomNumber * (unsigned) 1103515245 + (unsigned) 12345;
31 
  return randomNumber;
32 
}
33 
 
34 
 
35 
/**************************************************************/
36 
 
37 
 
38 
void writeWords(void *start,
39 
                unsigned int numWords,
40 
                unsigned int seed) {
41 
  unsigned int *addr;
42 
  unsigned int rn;
43 
 
44 
  setRandomNumber(seed);
45 
  addr = (unsigned int *) start;
46 
  while (numWords -= 1) {
47 
    rn = getRandomNumber();
48 
    *addr++ = rn;
49 
  }
50 
}
51 
 
52 
 
53 
void writeHalfs(void *start,
54 
                unsigned int numHalfs,
55 
                unsigned int seed) {
56 
  unsigned short *addr;
57 
  unsigned int rn;
58 
 
59 
  setRandomNumber(seed);
60 
  addr = (unsigned short *) start;
61 
  while (numHalfs -= 2) {
62 
    rn = getRandomNumber();
63 
    *addr++ = (rn >> 16) & 0x0000FFFF;
64 
    *addr++ = (rn >>  0) & 0x0000FFFF;
65 
  }
66 
}
67 
 
68 
 
69 
void writeBytes(void *start,
70 
                unsigned int numBytes,
71 
                unsigned int seed) {
72 
  unsigned char *addr;
73 
  unsigned int rn;
74 
 
75 
  setRandomNumber(seed);
76 
  addr = (unsigned char *) start;
77 
  while (numBytes -= 4) {
78 
    rn = getRandomNumber();
79 
    *addr++ = (rn >> 24) & 0x000000FF;
80 
    *addr++ = (rn >> 16) & 0x000000FF;
81 
    *addr++ = (rn >>  8) & 0x000000FF;
82 
    *addr++ = (rn >>  0) & 0x000000FF;
83 
  }
84 
}
85 
 
86 
 
87 
unsigned int readWords(void *start,
88 
                       unsigned int numWords,
89 
                       unsigned int seed) {
90 
  unsigned int errors;
91 
  unsigned int *addr;
92 
  unsigned int rn;
93 
 
94 
  errors = 0;
95 
  setRandomNumber(seed);
96 
  addr = (unsigned int *) start;
97 
  while (numWords -= 1) {
98 
    rn = getRandomNumber();
99 
    if (*addr++ != rn) {
100 
      errors++;
101 
    }
102 
  }
103 
  return errors;
104 
}
105 
 
106 
 
107 
unsigned int readHalfs(void *start,
108 
                       unsigned int numHalfs,
109 
                       unsigned int seed) {
110 
  unsigned int errors;
111 
  unsigned short *addr;
112 
  unsigned int rn;
113 
 
114 
  errors = 0;
115 
  setRandomNumber(seed);
116 
  addr = (unsigned short *) start;
117 
  while (numHalfs -= 2) {
118 
    rn = getRandomNumber();
119 
    if (*addr++ != ((rn >> 16) & 0x0000FFFF)) {
120 
      errors++;
121 
    }
122 
    if (*addr++ != ((rn >>  0) & 0x0000FFFF)) {
123 
      errors++;
124 
    }
125 
  }
126 
  return errors;
127 
}
128 
 
129 
 
130 
unsigned int readBytes(void *start,
131 
                       unsigned int numBytes,
132 
                       unsigned int seed) {
133 
  unsigned int errors;
134 
  unsigned char *addr;
135 
  unsigned int rn;
136 
 
137 
  errors = 0;
138 
  setRandomNumber(seed);
139 
  addr = (unsigned char *) start;
140 
  while (numBytes -= 4) {
141 
    rn = getRandomNumber();
142 
    if (*addr++ != ((rn >> 24) & 0x000000FF)) {
143 
      errors++;
144 
    }
145 
    if (*addr++ != ((rn >> 16) & 0x000000FF)) {
146 
      errors++;
147 
    }
148 
    if (*addr++ != ((rn >>  8) & 0x000000FF)) {
149 
      errors++;
150 
    }
151 
    if (*addr++ != ((rn >>  0) & 0x000000FF)) {
152 
      errors++;
153 
    }
154 
  }
155 
  return errors;
156 
}
157 
 
158 
 
159 
/**************************************************************/
160 
 
161 
 
162 
void memtest(void *start, unsigned int size, int passes) {
163 
  int i;
164 
  int j;
165 
  unsigned int seed;
166 
 
167 
  setRandomNumber(10007);
168 
  for (i = 1; i <= passes; i++) {
169 
    printf("Pass %d\n", i);
170 
    /* -------------------- */
171 
    printf("  writing words...\n");
172 
    for (j = 0; j < i; j++) {
173 
      getRandomNumber();
174 
    }
175 
    seed = getRandomNumber();
176 
    writeWords(start, size / 4, seed);
177 
    printf("    reading words: ");
178 
    printf("%d", readWords(start, size / 4, seed));
179 
    printf(" errors\n");
180 
    printf("    reading halfs: ");
181 
    printf("%d", readHalfs(start, size / 2, seed));
182 
    printf(" errors\n");
183 
    printf("    reading bytes: ");
184 
    printf("%d", readBytes(start, size / 1, seed));
185 
    printf(" errors\n");
186 
    /* -------------------- */
187 
    printf("  writing halfs...\n");
188 
    for (j = 0; j < i; j++) {
189 
      getRandomNumber();
190 
    }
191 
    seed = getRandomNumber();
192 
    writeHalfs(start, size / 2, seed);
193 
    printf("    reading words: ");
194 
    printf("%d", readWords(start, size / 4, seed));
195 
    printf(" errors\n");
196 
    printf("    reading halfs: ");
197 
    printf("%d", readHalfs(start, size / 2, seed));
198 
    printf(" errors\n");
199 
    printf("    reading bytes: ");
200 
    printf("%d", readBytes(start, size / 1, seed));
201 
    printf(" errors\n");
202 
    /* -------------------- */
203 
    printf("  writing bytes...\n");
204 
    for (j = 0; j < i; j++) {
205 
      getRandomNumber();
206 
    }
207 
    seed = getRandomNumber();
208 
    writeBytes(start, size / 1, seed);
209 
    printf("    reading words: ");
210 
    printf("%d", readWords(start, size / 4, seed));
211 
    printf(" errors\n");
212 
    printf("    reading halfs: ");
213 
    printf("%d", readHalfs(start, size / 2, seed));
214 
    printf(" errors\n");
215 
    printf("    reading bytes: ");
216 
    printf("%d", readBytes(start, size / 1, seed));
217 
    printf(" errors\n");
218 
  }
219 
}
220 
 
221 
 
222 
/**************************************************************/
223 
 
224 
 
225 
int main(void) {
226 
  printf("\nECO32 memory test started\n\n");
227 
  memtest(MEM_ADDR, MEM_SIZE, PASSES);
228 
  printf("\nECO32 memory test finished\n");
229 
  return 0;
230 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.