fb11e647
 vrobic
reseau statique a...
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
/*
* Copyright (C) 2015 Eistec AB
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Test application for the SPI NVRAM driver
*
* @author Joakim Nohlgård <joakim.nohlgard@eistec.se
*
* @}
*/
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "board.h"
#include "xtimer.h"
#include "periph/spi.h"
#include "nvram-spi.h"
#ifndef TEST_NVRAM_SPI_DEV
#error "TEST_NVRAM_SPI_DEV not defined"
#endif
#ifndef TEST_NVRAM_SPI_CS
#error "TEST_NVRAM_SPI_CS not defined"
#endif
#ifndef TEST_NVRAM_SPI_SIZE
#error "TEST_NVRAM_SPI_SIZE not defined"
#endif
#ifndef TEST_NVRAM_SPI_ADDRESS_COUNT
#error "TEST_NVRAM_SPI_ADDRESS_COUNT not defined"
#endif
#ifdef TEST_NVRAM_SPI_CONF
#define SPI_CONF (TEST_NVRAM_SPI_CONF)
#else
#define SPI_CONF (SPI_CONF_FIRST_RISING)
#endif
#ifdef TEST_NVRAM_SPI_SPEED
#define SPI_SPEED (TEST_NVRAM_SPI_SPEED)
#else
#define SPI_SPEED (SPI_SPEED_10MHZ)
#endif
/* This will only work on small memories. Modify if you need to test NVRAM
* memories which do not fit inside free RAM */
static uint8_t buf_out[TEST_NVRAM_SPI_SIZE];
static uint8_t buf_in[TEST_NVRAM_SPI_SIZE];
/**
* @brief xxd-like printing of a binary buffer
*/
static void print_buffer(const uint8_t * buf, size_t length) {
static const unsigned int bytes_per_line = 16;
static const unsigned int bytes_per_group = 2;
unsigned long i = 0;
while (i < length) {
unsigned int col;
for (col = 0; col < bytes_per_line; ++col) {
/* Print hex data */
if (col == 0) {
printf("\n%08lx: ", i);
}
else if ((col % bytes_per_group) == 0) {
putchar(' ');
}
if ((i + col) < length) {
printf("%02hhx", buf[i + col]);
} else {
putchar(' ');
putchar(' ');
}
}
putchar(' ');
for (col = 0; col < bytes_per_line; ++col) {
if ((i + col) < length) {
/* Echo only printable chars */
if (isprint(buf[i + col])) {
putchar(buf[i + col]);
} else {
putchar('.');
}
} else {
putchar(' ');
}
}
i += bytes_per_line;
}
/* end with a newline */
puts("");
}
/* weak PRNG for generating "random" test data */
static uint8_t lcg_rand8(void) {
static const uint32_t a = 1103515245;
static const uint32_t c = 12345;
static uint32_t val = 123456; /* seed value */
val = val * a + c;
return (val >> 16) & 0xff;
}
int main(void)
{
uint32_t i;
nvram_spi_params_t spi_params = {
.spi = TEST_NVRAM_SPI_DEV,
.cs = TEST_NVRAM_SPI_CS,
.address_count = TEST_NVRAM_SPI_ADDRESS_COUNT,
};
nvram_t dev;
uint32_t start_delay = 10;
puts("NVRAM SPI test application starting...");
printf("Initializing SPI_%i... ", TEST_NVRAM_SPI_DEV);
if (spi_init_master(TEST_NVRAM_SPI_DEV, SPI_CONF, SPI_SPEED_10MHZ) == 0) {
puts("[OK]");
}
else {
puts("[Failed]\n");
return 1;
}
puts("Initializing NVRAM SPI device descriptor... ");
if (nvram_spi_init(&dev, &spi_params, TEST_NVRAM_SPI_SIZE) == 0) {
puts("[OK]");
}
else {
puts("[Failed]\n");
return 1;
}
puts("NVRAM SPI init done.\n");
puts("!!! This test will erase everything on the NVRAM !!!");
puts("!!! Unplug/reset/halt device now if this is not acceptable !!!");
puts("Waiting for 10 seconds before continuing...");
xtimer_sleep(start_delay);
puts("Reading current memory contents...");
for (i = 0; i < TEST_NVRAM_SPI_SIZE; ++i) {
if (dev.read(&dev, &buf_in[i], i, 1) != 1) {
puts("[Failed]\n");
return 1;
}
}
puts("[OK]");
puts("NVRAM contents before test:");
print_buffer(buf_in, sizeof(buf_in));
puts("Writing bytewise 0xFF to device");
memset(buf_out, 0xff, sizeof(buf_out));
for (i = 0; i < TEST_NVRAM_SPI_SIZE; ++i) {
if (dev.write(&dev, &buf_out[i], i, 1) != 1) {
puts("[Failed]\n");
return 1;
}
if (buf_out[i] != 0xff) {
puts("nvram_spi_write modified *src!");
printf(" i = %08lx\n", (unsigned long) i);
puts("[Failed]\n");
return 1;
}
}
puts("Reading back blockwise");
memset(buf_in, 0x00, sizeof(buf_in));
if (dev.read(&dev, buf_in, 0, TEST_NVRAM_SPI_SIZE) != TEST_NVRAM_SPI_SIZE) {
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("Verifying contents...");
if (memcmp(buf_in, buf_out, TEST_NVRAM_SPI_SIZE) != 0) {
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("Writing blockwise address complement to device");
for (i = 0; i < TEST_NVRAM_SPI_SIZE; ++i) {
buf_out[i] = (~(i)) & 0xff;
}
if (dev.write(&dev, buf_out, 0, TEST_NVRAM_SPI_SIZE) != TEST_NVRAM_SPI_SIZE) {
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("buf_out:");
print_buffer(buf_out, sizeof(buf_out));
puts("Reading back blockwise");
memset(buf_in, 0x00, sizeof(buf_in));
if (dev.read(&dev, buf_in, 0, TEST_NVRAM_SPI_SIZE) != TEST_NVRAM_SPI_SIZE) {
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("Verifying contents...");
if (memcmp(buf_in, buf_out, TEST_NVRAM_SPI_SIZE) != 0) {
puts("buf_in:");
print_buffer(buf_in, sizeof(buf_in));
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("Generating pseudo-random test data...");
for (i = 0; i < TEST_NVRAM_SPI_SIZE; ++i) {
buf_out[i] = lcg_rand8();
}
puts("buf_out:");
print_buffer(buf_out, sizeof(buf_out));
puts("Writing blockwise data to device");
if (dev.write(&dev, buf_out, 0, TEST_NVRAM_SPI_SIZE) != TEST_NVRAM_SPI_SIZE) {
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("Reading back blockwise");
memset(buf_in, 0x00, sizeof(buf_in));
if (dev.read(&dev, buf_in, 0, TEST_NVRAM_SPI_SIZE) != TEST_NVRAM_SPI_SIZE) {
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("Verifying contents...");
if (memcmp(buf_in, buf_out, TEST_NVRAM_SPI_SIZE) != 0) {
puts("buf_in:");
print_buffer(buf_in, sizeof(buf_in));
puts("[Failed]\n");
return 1;
}
puts("[OK]");
puts("All tests passed!");
while(1);
return 0;
}
|