@@ -1,281 +1,282 | |||||
1 | #include <stdlib.h> |
|
1 | #include <stdlib.h> | |
2 | #include <errno.h> |
|
2 | #include <errno.h> | |
3 | #include <string.h> |
|
3 | #include <string.h> | |
4 | #include <sys/stat.h> |
|
4 | #include <sys/stat.h> | |
5 | #include <sys/types.h> |
|
5 | #include <sys/types.h> | |
6 | #include <sys/times.h> |
|
6 | #include <sys/times.h> | |
7 | #include <streamdevices.h> |
|
7 | #include <streamdevices.h> | |
8 | #include <string.h> |
|
8 | #include <string.h> | |
9 | #include <stdio.h> |
|
9 | #include <stdio.h> | |
10 | #include <gpio.h> |
|
10 | #include <gpio.h> | |
11 | #include <uart.h> |
|
11 | #include <uart.h> | |
12 | #include <stdint.h> |
|
12 | #include <stdint.h> | |
13 | #include <bsp.h> |
|
13 | #include <bsp.h> | |
|
14 | #include <core.h> | |||
14 |
|
15 | |||
15 | #undef errno |
|
16 | #undef errno | |
16 |
|
17 | |||
17 |
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18 | |||
18 | #ifdef __cplusplus |
|
19 | #ifdef __cplusplus | |
19 | extern "C" { |
|
20 | extern "C" { | |
20 | #endif |
|
21 | #endif | |
21 | extern int errno; |
|
22 | extern int errno; | |
22 | extern int32_t __max_opened_files__; |
|
23 | extern int32_t __max_opened_files__; | |
23 | extern streamdevice* __opnfiles__[]; |
|
24 | extern streamdevice* __opnfiles__[]; | |
24 | extern int32_t* __fs_root__; |
|
25 | extern int32_t* __fs_root__; | |
25 | extern int32_t __fs_root_size__; |
|
26 | extern int32_t __fs_root_size__; | |
26 |
|
27 | |||
27 | char *__env[1] = { 0 }; |
|
28 | char *__env[1] = { 0 }; | |
28 | char **environ = __env; |
|
29 | char **environ = __env; | |
29 |
|
30 | |||
30 | int _exit() |
|
31 | int _exit() | |
31 | { |
|
32 | { | |
32 | while(1) |
|
33 | while(1) | |
33 | { |
|
34 | { | |
34 | delay_100us(10000); |
|
35 | delay_100us(10000); | |
35 | gpioset(LED2); |
|
36 | gpioset(LED2); | |
36 | delay_100us(10000); |
|
37 | delay_100us(10000); | |
37 | gpioclr(LED2); |
|
38 | gpioclr(LED2); | |
38 | } |
|
39 | } | |
39 | } |
|
40 | } | |
40 |
|
41 | |||
41 | int _close(int file) |
|
42 | int _close(int file) | |
42 | { |
|
43 | { | |
43 | if(file<__max_opened_files__ && __opnfiles__[file]!=NULL) |
|
44 | if(file<__max_opened_files__ && __opnfiles__[file]!=NULL) | |
44 | { |
|
45 | { | |
45 | return __opnfiles__[file]->ops->close( __opnfiles__[file]); |
|
46 | return __opnfiles__[file]->ops->close( __opnfiles__[file]); | |
46 | } |
|
47 | } | |
47 | return 0; |
|
48 | return 0; | |
48 | } |
|
49 | } | |
49 |
|
50 | |||
50 |
|
51 | |||
51 | int _write(int file, char *ptr, int len) |
|
52 | int _write(int file, char *ptr, int len) | |
52 | { |
|
53 | { | |
53 | if(file<__max_opened_files__ && __opnfiles__[file]!=NULL) |
|
54 | if(file<__max_opened_files__ && __opnfiles__[file]!=NULL) | |
54 | { |
|
55 | { | |
55 | if(__opnfiles__[file]->ops->write(__opnfiles__[file],ptr,1,len)) return len; |
|
56 | if(__opnfiles__[file]->ops->write(__opnfiles__[file],ptr,1,len)) return len; | |
56 | } |
|
57 | } | |
57 | return len; |
|
58 | return len; | |
58 | } |
|
59 | } | |
59 |
|
60 | |||
60 | int _execve(char *name, char **argv, char **env) { |
|
61 | int _execve(char *name, char **argv, char **env) { | |
61 | errno = ENOMEM; |
|
62 | errno = ENOMEM; | |
62 | return -1; |
|
63 | return -1; | |
63 | } |
|
64 | } | |
64 |
|
65 | |||
65 |
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66 | |||
66 | int _fork(void) { |
|
67 | int _fork(void) { | |
67 | errno = EAGAIN; |
|
68 | errno = EAGAIN; | |
68 | return -1; |
|
69 | return -1; | |
69 | } |
|
70 | } | |
70 |
|
71 | |||
71 | int _fstat(int file, struct stat *st) { |
|
72 | int _fstat(int file, struct stat *st) { | |
72 | st->st_mode = S_IFCHR; |
|
73 | st->st_mode = S_IFCHR; | |
73 | return 0; |
|
74 | return 0; | |
74 | } |
|
75 | } | |
75 |
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76 | |||
76 |
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77 | |||
77 | int _getpid(void) { |
|
78 | int _getpid(void) { | |
78 | return 1; |
|
79 | return 1; | |
79 | } |
|
80 | } | |
80 |
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81 | |||
81 |
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82 | |||
82 | int _isatty(int file) { |
|
83 | int _isatty(int file) { | |
83 | return 1; |
|
84 | return 1; | |
84 | } |
|
85 | } | |
85 |
|
86 | |||
86 |
|
87 | |||
87 | int _kill(int pid, int sig) { |
|
88 | int _kill(int pid, int sig) { | |
88 | errno = EINVAL; |
|
89 | errno = EINVAL; | |
89 | return -1; |
|
90 | return -1; | |
90 | } |
|
91 | } | |
91 |
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92 | |||
92 |
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93 | |||
93 | int _link(char *old, char *_new) { |
|
94 | int _link(char *old, char *_new) { | |
94 | errno = EMLINK; |
|
95 | errno = EMLINK; | |
95 | return -1; |
|
96 | return -1; | |
96 | } |
|
97 | } | |
97 |
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98 | |||
98 |
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99 | |||
99 | int _lseek(int file, int ptr, int dir) { |
|
100 | int _lseek(int file, int ptr, int dir) { | |
100 | return 0; |
|
101 | return 0; | |
101 | } |
|
102 | } | |
102 |
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103 | |||
103 | #include <gpio.h> |
|
104 | #include <gpio.h> | |
104 |
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105 | |||
105 | int _open(const char *name, int flags, int mode) |
|
106 | int _open(const char *name, int flags, int mode) | |
106 | { |
|
107 | { | |
107 | if(!strncmp("UART", name, 4) && ((name[4] & 0x30)==0x30)) |
|
108 | if(!strncmp("UART", name, 4) && ((name[4] & 0x30)==0x30)) | |
108 | { |
|
109 | { | |
109 | //uart_t* uart1 = malloc(sizeof(uart_t)); |
|
110 | //uart_t* uart1 = malloc(sizeof(uart_t)); | |
110 | streamdevice* fd1 = malloc(sizeof(streamdevice)); |
|
111 | streamdevice* fd1 = malloc(sizeof(streamdevice)); | |
111 | uart_t uart=uartopen((name[4] & 0xF)-1); |
|
112 | uart_t uart=uartopen((name[4] & 0xF)-1); | |
112 | if(uart!=-1); |
|
113 | if(uart!=-1); | |
113 | { |
|
114 | { | |
114 | uartmkstreamdev(uart,fd1); |
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115 | uartmkstreamdev(uart,fd1); | |
115 | int i=2; |
|
116 | int i=2; | |
116 | while((i<__max_opened_files__) && (__opnfiles__[i]!=NULL))i++; |
|
117 | while((i<__max_opened_files__) && (__opnfiles__[i]!=NULL))i++; | |
117 | if(i!=__max_opened_files__) |
|
118 | if(i!=__max_opened_files__) | |
118 | { |
|
119 | { | |
119 | __opnfiles__[i] = fd1; |
|
120 | __opnfiles__[i] = fd1; | |
120 | return i; |
|
121 | return i; | |
121 | } |
|
122 | } | |
122 | else printf("Too much files opened\n\r"); |
|
123 | else printf("Too much files opened\n\r"); | |
123 | } |
|
124 | } | |
124 | } |
|
125 | } | |
125 | return -1; |
|
126 | return -1; | |
126 | } |
|
127 | } | |
127 |
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128 | |||
128 | int _read(int file, char *ptr, int len) { |
|
129 | int _read(int file, char *ptr, int len) { | |
129 | if(file<__max_opened_files__ && __opnfiles__[file]!=NULL) |
|
130 | if(file<__max_opened_files__ && __opnfiles__[file]!=NULL) | |
130 | { |
|
131 | { | |
131 | if(__opnfiles__[file]->ops->read(__opnfiles__[file],ptr,1,len)) return len; |
|
132 | if(__opnfiles__[file]->ops->read(__opnfiles__[file],ptr,1,len)) return len; | |
132 | } |
|
133 | } | |
133 | return 0; |
|
134 | return 0; | |
134 | } |
|
135 | } | |
135 |
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136 | |||
136 |
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137 | |||
137 |
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138 | |||
138 | caddr_t _sbrk(int incr) { |
|
139 | caddr_t _sbrk(int incr) { | |
139 | register char * stack_ptr __asm__ ("sp"); |
|
140 | register char * stack_ptr __asm__ ("sp"); | |
140 | extern char end; /* Defined by the linker */ |
|
141 | extern char end; /* Defined by the linker */ | |
141 | static char *heap_end; |
|
142 | static char *heap_end; | |
142 | char *prev_heap_end; |
|
143 | char *prev_heap_end; | |
143 | if (heap_end == 0) { |
|
144 | if (heap_end == 0) { | |
144 | heap_end = &end; |
|
145 | heap_end = &end; | |
145 | } |
|
146 | } | |
146 | prev_heap_end = heap_end; |
|
147 | prev_heap_end = heap_end; | |
147 | if (heap_end + incr > stack_ptr) { |
|
148 | if (heap_end + incr > stack_ptr) { | |
148 | printf("Heap and stack collision\n"); |
|
149 | printf("Heap and stack collision\n"); | |
149 | //abort (); |
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150 | //abort (); | |
150 | while(1) |
|
151 | while(1) | |
151 | { |
|
152 | { | |
152 | delay_100us(10000); |
|
153 | delay_100us(10000); | |
153 | gpioset(LED2); |
|
154 | gpioset(LED2); | |
154 | delay_100us(10000); |
|
155 | delay_100us(10000); | |
155 | gpioclr(LED2); |
|
156 | gpioclr(LED2); | |
156 | } |
|
157 | } | |
157 | } |
|
158 | } | |
158 | heap_end += incr; |
|
159 | heap_end += incr; | |
159 | return (caddr_t) prev_heap_end; |
|
160 | return (caddr_t) prev_heap_end; | |
160 | } |
|
161 | } | |
161 |
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162 | |||
162 |
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163 | |||
163 |
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164 | |||
164 | int _stat(char *file, struct stat *st) { |
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165 | int _stat(char *file, struct stat *st) { | |
165 | st->st_mode = S_IFCHR; |
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166 | st->st_mode = S_IFCHR; | |
166 | return 0; |
|
167 | return 0; | |
167 | } |
|
168 | } | |
168 |
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169 | |||
169 |
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170 | |||
170 | int _times(struct tms *buf) { |
|
171 | int _times(struct tms *buf) { | |
171 | return -1; |
|
172 | return -1; | |
172 | } |
|
173 | } | |
173 |
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174 | |||
174 |
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175 | |||
175 | int _unlink(char *name) { |
|
176 | int _unlink(char *name) { | |
176 | errno = ENOENT; |
|
177 | errno = ENOENT; | |
177 | return -1; |
|
178 | return -1; | |
178 | } |
|
179 | } | |
179 |
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180 | |||
180 | int _wait(int *status) { |
|
181 | int _wait(int *status) { | |
181 | errno = ECHILD; |
|
182 | errno = ECHILD; | |
182 | return -1; |
|
183 | return -1; | |
183 | } |
|
184 | } | |
184 |
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185 | |||
185 |
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186 | |||
186 | int _read_r (struct _reent *r, int file, char * ptr, int len) |
|
187 | int _read_r (struct _reent *r, int file, char * ptr, int len) | |
187 | { |
|
188 | { | |
188 | r = r; |
|
189 | r = r; | |
189 | file = file; |
|
190 | file = file; | |
190 | ptr = ptr; |
|
191 | ptr = ptr; | |
191 | len = len; |
|
192 | len = len; | |
192 | _read(file,ptr,len); |
|
193 | _read(file,ptr,len); | |
193 | errno = EINVAL; |
|
194 | errno = EINVAL; | |
194 | return -1; |
|
195 | return -1; | |
195 | } |
|
196 | } | |
196 |
|
197 | |||
197 | /***************************************************************************/ |
|
198 | /***************************************************************************/ | |
198 |
|
199 | |||
199 | int _lseek_r (struct _reent *r, int file, int ptr, int dir) |
|
200 | int _lseek_r (struct _reent *r, int file, int ptr, int dir) | |
200 | { |
|
201 | { | |
201 | r = r; |
|
202 | r = r; | |
202 | file = file; |
|
203 | file = file; | |
203 | ptr = ptr; |
|
204 | ptr = ptr; | |
204 | dir = dir; |
|
205 | dir = dir; | |
205 |
|
206 | |||
206 | return 0; |
|
207 | return 0; | |
207 | } |
|
208 | } | |
208 |
|
209 | |||
209 | /***************************************************************************/ |
|
210 | /***************************************************************************/ | |
210 |
|
211 | |||
211 | int _write_r (struct _reent *r, int file, char * ptr, int len) |
|
212 | int _write_r (struct _reent *r, int file, char * ptr, int len) | |
212 | { |
|
213 | { | |
213 | return _write(file, ptr, len); |
|
214 | return _write(file, ptr, len); | |
214 | } |
|
215 | } | |
215 |
|
216 | |||
216 | /***************************************************************************/ |
|
217 | /***************************************************************************/ | |
217 |
|
218 | |||
218 | int _close_r (struct _reent *r, int file) |
|
219 | int _close_r (struct _reent *r, int file) | |
219 | { |
|
220 | { | |
220 | return 0; |
|
221 | return 0; | |
221 | } |
|
222 | } | |
222 |
|
223 | |||
223 | /***************************************************************************/ |
|
224 | /***************************************************************************/ | |
224 |
|
225 | |||
225 | caddr_t _sbrk_r (struct _reent *r, int incr) |
|
226 | caddr_t _sbrk_r (struct _reent *r, int incr) | |
226 | { |
|
227 | { | |
227 | register char * stack_ptr __asm__ ("sp"); |
|
228 | register char * stack_ptr __asm__ ("sp"); | |
228 | extern char end; /* Defined by the linker */ |
|
229 | extern char end; /* Defined by the linker */ | |
229 | static char *heap_end; |
|
230 | static char *heap_end; | |
230 | char *prev_heap_end; |
|
231 | char *prev_heap_end; | |
231 | if (heap_end == 0) { |
|
232 | if (heap_end == 0) { | |
232 | heap_end = &end; |
|
233 | heap_end = &end; | |
233 | } |
|
234 | } | |
234 | prev_heap_end = heap_end; |
|
235 | prev_heap_end = heap_end; | |
235 | if (heap_end + incr > stack_ptr) { |
|
236 | if (heap_end + incr > stack_ptr) { | |
236 | printf( "Heap and stack collision\n"); |
|
237 | printf( "Heap and stack collision\n"); | |
237 | //abort (); |
|
238 | //abort (); | |
238 | while(1) |
|
239 | while(1) | |
239 | { |
|
240 | { | |
240 | delay_100us(10000); |
|
241 | delay_100us(10000); | |
241 | gpioset(LED2); |
|
242 | gpioset(LED2); | |
242 | delay_100us(10000); |
|
243 | delay_100us(10000); | |
243 | gpioclr(LED2); |
|
244 | gpioclr(LED2); | |
244 | } |
|
245 | } | |
245 | } |
|
246 | } | |
246 | heap_end += incr; |
|
247 | heap_end += incr; | |
247 | return (caddr_t) prev_heap_end; |
|
248 | return (caddr_t) prev_heap_end; | |
248 | } |
|
249 | } | |
249 |
|
250 | |||
250 | /***************************************************************************/ |
|
251 | /***************************************************************************/ | |
251 |
|
252 | |||
252 | int _fstat_r (struct _reent *r, int file, struct stat * st) |
|
253 | int _fstat_r (struct _reent *r, int file, struct stat * st) | |
253 | { |
|
254 | { | |
254 | r = r; |
|
255 | r = r; | |
255 | file = file; |
|
256 | file = file; | |
256 |
|
257 | |||
257 | memset (st, 0, sizeof (* st)); |
|
258 | memset (st, 0, sizeof (* st)); | |
258 | st->st_mode = S_IFCHR; |
|
259 | st->st_mode = S_IFCHR; | |
259 | return 0; |
|
260 | return 0; | |
260 | } |
|
261 | } | |
261 |
|
262 | |||
262 | /***************************************************************************/ |
|
263 | /***************************************************************************/ | |
263 | int _open_r(struct _reent *r,const char *name, int flags, int mode) |
|
264 | int _open_r(struct _reent *r,const char *name, int flags, int mode) | |
264 | { |
|
265 | { | |
265 | return _open(name, flags, mode); |
|
266 | return _open(name, flags, mode); | |
266 | } |
|
267 | } | |
267 |
|
268 | |||
268 | int _isatty_r(struct _reent *r, int fd) |
|
269 | int _isatty_r(struct _reent *r, int fd) | |
269 | { |
|
270 | { | |
270 | r = r; |
|
271 | r = r; | |
271 | fd = fd; |
|
272 | fd = fd; | |
272 |
|
273 | |||
273 | return 1; |
|
274 | return 1; | |
274 | } |
|
275 | } | |
275 |
|
276 | |||
276 |
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277 | |||
277 | #ifdef __cplusplus |
|
278 | #ifdef __cplusplus | |
278 | } |
|
279 | } | |
279 | #endif |
|
280 | #endif | |
280 |
|
281 | |||
281 |
|
282 |
@@ -1,387 +1,388 | |||||
1 | /*------------------------------------------------------------------------------ |
|
1 | /*------------------------------------------------------------------------------ | |
2 | -- This file is a part of the libuc, microcontroler library |
|
2 | -- This file is a part of the libuc, microcontroler library | |
3 | -- Copyright (C) 2012, Alexis Jeandet |
|
3 | -- Copyright (C) 2012, Alexis Jeandet | |
4 | -- |
|
4 | -- | |
5 | -- This program is free software; you can redistribute it and/or modify |
|
5 | -- This program is free software; you can redistribute it and/or modify | |
6 | -- it under the terms of the GNU General Public License as published by |
|
6 | -- it under the terms of the GNU General Public License as published by | |
7 | -- the Free Software Foundation; either version 3 of the License, or |
|
7 | -- the Free Software Foundation; either version 3 of the License, or | |
8 | -- (at your option) any later version. |
|
8 | -- (at your option) any later version. | |
9 | -- |
|
9 | -- | |
10 | -- This program is distributed in the hope that it will be useful, |
|
10 | -- This program is distributed in the hope that it will be useful, | |
11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | -- GNU General Public License for more details. |
|
13 | -- GNU General Public License for more details. | |
14 | -- |
|
14 | -- | |
15 | -- You should have received a copy of the GNU General Public License |
|
15 | -- You should have received a copy of the GNU General Public License | |
16 | -- along with this program; if not, write to the Free Software |
|
16 | -- along with this program; if not, write to the Free Software | |
17 | -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|
17 | -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | ------------------------------------------------------------------------------- |
|
18 | ------------------------------------------------------------------------------- | |
19 | -- Author : Alexis Jeandet |
|
19 | -- Author : Alexis Jeandet | |
20 | -- Mail : alexis.jeandet@member.fsf.org |
|
20 | -- Mail : alexis.jeandet@member.fsf.org | |
21 | -------------------------------------------------------------------------------*/ |
|
21 | -------------------------------------------------------------------------------*/ | |
22 |
|
22 | |||
23 | #include <i2c.h> |
|
23 | #include <i2c.h> | |
24 | #include <stm32f4xx_usart.h> |
|
24 | #include <stm32f4xx_usart.h> | |
25 | #include <stm32f4xx_rcc.h> |
|
25 | #include <stm32f4xx_rcc.h> | |
26 | #include <stm32f4xx_gpio.h> |
|
26 | #include <stm32f4xx_gpio.h> | |
27 | #include <gpio.h> |
|
27 | #include <gpio.h> | |
28 | #include <core.h> |
|
28 | #include <core.h> | |
29 | #include <stdio.h> |
|
29 | #include <stdio.h> | |
30 |
|
30 | |||
31 | #define GPIOGETPORT(gpio) ((GPIO_TypeDef*)(((((uint32_t)gpio) & (uint32_t)0x0000FF00)*(uint32_t)4) + (uint32_t)GPIOA)) |
|
31 | #define GPIOGETPORT(gpio) ((GPIO_TypeDef*)(((((uint32_t)gpio) & (uint32_t)0x0000FF00)*(uint32_t)4) + (uint32_t)GPIOA)) | |
32 | #define GPIOPORTNUM(gpio) (((uint32_t)(gpio) & (uint32_t)0x0000FF00)>>(uint32_t)8) |
|
32 | #define GPIOPORTNUM(gpio) (((uint32_t)(gpio) & (uint32_t)0x0000FF00)>>(uint32_t)8) | |
33 |
|
33 | |||
34 | int i2ctimeout=1000*1000; |
|
34 | int i2ctimeout=1000*1000; | |
35 |
|
35 | |||
36 | I2C_TypeDef* _i2c_dev_table[3]={I2C1,I2C2,I2C3}; |
|
36 | I2C_TypeDef* _i2c_dev_table[3]={I2C1,I2C2,I2C3}; | |
37 |
|
37 | |||
38 | i2c_t i2copen(int count) |
|
38 | i2c_t i2copen(int count) | |
39 | { |
|
39 | { | |
40 | #define _INIT_DEV(_RCC_) \ |
|
40 | #define _INIT_DEV(_RCC_) \ | |
41 | RCC_APB1PeriphClockCmd(_RCC_, ENABLE); \ |
|
41 | RCC_APB1PeriphClockCmd(_RCC_, ENABLE); \ | |
42 | RCC_APB1PeriphResetCmd(_RCC_, ENABLE); \ |
|
42 | RCC_APB1PeriphResetCmd(_RCC_, ENABLE); \ | |
43 | RCC_APB1PeriphResetCmd(_RCC_, DISABLE); |
|
43 | RCC_APB1PeriphResetCmd(_RCC_, DISABLE); \ | |
|
44 | RCC_APB1PeriphClockCmd(_RCC_, ENABLE); | |||
44 |
|
45 | |||
45 | switch(count) |
|
46 | switch(count) | |
46 | { |
|
47 | { | |
47 | case i2c1: |
|
48 | case i2c1: | |
48 | _INIT_DEV(RCC_APB1Periph_I2C1); |
|
49 | _INIT_DEV(RCC_APB1Periph_I2C1); | |
49 | return i2c1; |
|
50 | return i2c1; | |
50 | break; |
|
51 | break; | |
51 | case i2c2: |
|
52 | case i2c2: | |
52 | _INIT_DEV(RCC_APB1Periph_I2C2); |
|
53 | _INIT_DEV(RCC_APB1Periph_I2C2); | |
53 | return i2c2; |
|
54 | return i2c2; | |
54 | break; |
|
55 | break; | |
55 | case i2c3: |
|
56 | case i2c3: | |
56 | _INIT_DEV(RCC_APB1Periph_I2C3); |
|
57 | _INIT_DEV(RCC_APB1Periph_I2C3); | |
57 | return i2c3; |
|
58 | return i2c3; | |
58 | break; |
|
59 | break; | |
59 | default: |
|
60 | default: | |
60 | break; |
|
61 | break; | |
61 | } |
|
62 | } | |
62 | return -1; |
|
63 | return -1; | |
63 | } |
|
64 | } | |
64 |
|
65 | |||
65 | i2c_t i2copenandconfig(int count,uint32_t cfg,uint32_t speed,uint32_t SDA,uint32_t SCL) |
|
66 | i2c_t i2copenandconfig(int count,uint32_t cfg,uint32_t speed,uint32_t SDA,uint32_t SCL) | |
66 | { |
|
67 | { | |
67 | i2c_t dev = i2copen(count); |
|
68 | i2c_t dev = i2copen(count); | |
68 | if(dev!=-1) |
|
69 | if(dev!=-1) | |
69 | { |
|
70 | { | |
70 | i2cclose(dev); |
|
71 | i2cclose(dev); | |
71 | i2csetpins(dev,SDA,SCL); |
|
72 | i2csetpins(dev,SDA,SCL); | |
72 | i2copen(count); |
|
73 | i2copen(count); | |
73 | i2csetspeed(dev,speed); |
|
74 | i2csetspeed(dev,speed); | |
74 | i2cenable(count); |
|
75 | i2cenable(count); | |
75 | } |
|
76 | } | |
76 | return dev; |
|
77 | return dev; | |
77 | } |
|
78 | } | |
78 |
|
79 | |||
79 | int i2cclose(i2c_t dev) |
|
80 | int i2cclose(i2c_t dev) | |
80 | { |
|
81 | { | |
81 | switch(dev) |
|
82 | switch(dev) | |
82 | { |
|
83 | { | |
83 | case i2c1: |
|
84 | case i2c1: | |
84 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE); |
|
85 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, ENABLE); | |
85 | break; |
|
86 | break; | |
86 | case i2c2: |
|
87 | case i2c2: | |
87 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, ENABLE); |
|
88 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C2, ENABLE); | |
88 | break; |
|
89 | break; | |
89 | case i2c3: |
|
90 | case i2c3: | |
90 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C3, ENABLE); |
|
91 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C3, ENABLE); | |
91 | break; |
|
92 | break; | |
92 | default: |
|
93 | default: | |
93 | break; |
|
94 | break; | |
94 | } |
|
95 | } | |
95 | return 1; |
|
96 | return 1; | |
96 | } |
|
97 | } | |
97 |
|
98 | |||
98 | int i2csetpins(i2c_t dev, uint32_t SDA, uint32_t SCL) |
|
99 | int i2csetpins(i2c_t dev, uint32_t SDA, uint32_t SCL) | |
99 | { |
|
100 | { | |
100 | if((dev<i2c4)&&(dev>=i2c1)) |
|
101 | if((dev<i2c4)&&(dev>=i2c1)) | |
101 | { |
|
102 | { | |
102 | gpio_t SDApin,SCLpin; |
|
103 | gpio_t SDApin,SCLpin; | |
103 | SDApin = gpioopen(SDA); |
|
104 | SDApin = gpioopen(SDA); | |
104 | SCLpin = gpioopen(SCL); |
|
105 | SCLpin = gpioopen(SCL); | |
105 | SDApin |= gpiolowspeed | gpioaf | gpioopendraintype | gpionopulltype; |
|
106 | SDApin |= gpiolowspeed | gpioaf | gpioopendraintype | gpionopulltype; | |
106 | SCLpin |= gpiolowspeed | gpiooutdir | gpioopendraintype | gpionopulltype; |
|
107 | SCLpin |= gpiolowspeed | gpiooutdir | gpioopendraintype | gpionopulltype; | |
107 | gpiosetconfig(&SCLpin); |
|
108 | gpiosetconfig(&SCLpin); | |
108 | for(int i=0;i<32;i++) |
|
109 | for(int i=0;i<32;i++) | |
109 | { |
|
110 | { | |
110 | gpioclr(SCLpin); |
|
111 | gpioclr(SCLpin); | |
111 | for(int l=0;l<200;l++) |
|
112 | for(int l=0;l<200;l++) | |
112 | {__asm__("nop");} |
|
113 | {__asm__("nop");} | |
113 | gpioset(SCLpin); |
|
114 | gpioset(SCLpin); | |
114 | for(int l=0;l<200;l++) |
|
115 | for(int l=0;l<200;l++) | |
115 | {__asm__("nop");} |
|
116 | {__asm__("nop");} | |
116 | } |
|
117 | } | |
117 | SCLpin = gpioopen(SCL); |
|
118 | SCLpin = gpioopen(SCL); | |
118 | SCLpin |= gpiolowspeed | gpioaf | gpioopendraintype | gpionopulltype; |
|
119 | SCLpin |= gpiolowspeed | gpioaf | gpioopendraintype | gpionopulltype; | |
119 | gpiosetconfig(&SDApin); |
|
120 | gpiosetconfig(&SDApin); | |
120 | gpiosetconfig(&SCLpin); |
|
121 | gpiosetconfig(&SCLpin); | |
121 | uint8_t gpioAFi2cx = GPIO_AF_I2C1; |
|
122 | uint8_t gpioAFi2cx = GPIO_AF_I2C1; | |
122 | switch(dev) |
|
123 | switch(dev) | |
123 | { |
|
124 | { | |
124 | case i2c1: |
|
125 | case i2c1: | |
125 | gpioAFi2cx = GPIO_AF_I2C1; |
|
126 | gpioAFi2cx = GPIO_AF_I2C1; | |
126 | break; |
|
127 | break; | |
127 | case i2c2: |
|
128 | case i2c2: | |
128 | gpioAFi2cx = GPIO_AF_I2C2; |
|
129 | gpioAFi2cx = GPIO_AF_I2C2; | |
129 | break; |
|
130 | break; | |
130 | case i2c3: |
|
131 | case i2c3: | |
131 | gpioAFi2cx = GPIO_AF_I2C3; |
|
132 | gpioAFi2cx = GPIO_AF_I2C3; | |
132 | break; |
|
133 | break; | |
133 | default: |
|
134 | default: | |
134 | break; |
|
135 | break; | |
135 | } |
|
136 | } | |
136 | GPIO_PinAFConfig(GPIOGETPORT(SDApin), (uint8_t)(SDApin & 0xF), gpioAFi2cx); |
|
137 | GPIO_PinAFConfig(GPIOGETPORT(SDApin), (uint8_t)(SDApin & 0xF), gpioAFi2cx); | |
137 | GPIO_PinAFConfig(GPIOGETPORT(SCLpin), (uint8_t)(SCLpin & 0xF), gpioAFi2cx); |
|
138 | GPIO_PinAFConfig(GPIOGETPORT(SCLpin), (uint8_t)(SCLpin & 0xF), gpioAFi2cx); | |
138 | return 0; |
|
139 | return 0; | |
139 | } |
|
140 | } | |
140 | return -1; |
|
141 | return -1; | |
141 | } |
|
142 | } | |
142 |
|
143 | |||
143 | int i2cenable(i2c_t dev) |
|
144 | int i2cenable(i2c_t dev) | |
144 | { |
|
145 | { | |
145 | if((dev<i2c4)&&(dev>=i2c1)) |
|
146 | if((dev<i2c4)&&(dev>=i2c1)) | |
146 | { |
|
147 | { | |
147 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
148 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
148 | _dev_->CR1 |=1 ; |
|
149 | _dev_->CR1 |=1 ; | |
149 | return 0; |
|
150 | return 0; | |
150 | } |
|
151 | } | |
151 | return -1; |
|
152 | return -1; | |
152 | } |
|
153 | } | |
153 |
|
154 | |||
154 | int i2cdisable(i2c_t dev) |
|
155 | int i2cdisable(i2c_t dev) | |
155 | { |
|
156 | { | |
156 | if((dev<i2c4)&&(dev>=i2c1)) |
|
157 | if((dev<i2c4)&&(dev>=i2c1)) | |
157 | { |
|
158 | { | |
158 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
159 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
159 | _dev_->CR1 &= ~1; |
|
160 | _dev_->CR1 &= ~1; | |
160 | return 0; |
|
161 | return 0; | |
161 | } |
|
162 | } | |
162 | return -1; |
|
163 | return -1; | |
163 | } |
|
164 | } | |
164 |
|
165 | |||
165 |
|
166 | |||
166 | int i2csetspeed(i2c_t dev,uint32_t speed) |
|
167 | int i2csetspeed(i2c_t dev,uint32_t speed) | |
167 | { |
|
168 | { | |
168 | if((dev<i2c4)&&(dev>=i2c1)) |
|
169 | if((dev<i2c4)&&(dev>=i2c1)) | |
169 | { |
|
170 | { | |
170 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
171 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
171 | int32_t APB1Freq=getAPB1Freq()/1000000; |
|
172 | int32_t APB1Freq=getAPB1Freq()/1000000; | |
172 | if((APB1Freq>1)&&(APB1Freq<43)) |
|
173 | if((APB1Freq>1)&&(APB1Freq<43)) | |
173 | { |
|
174 | { | |
174 |
|
175 | |||
175 | uint16_t tmpreg=_dev_->CR2; |
|
176 | uint16_t tmpreg=_dev_->CR2; | |
176 | tmpreg &= ~(0x1f); |
|
177 | tmpreg &= ~(0x1f); | |
177 | tmpreg |= APB1Freq; |
|
178 | tmpreg |= APB1Freq; | |
178 | _dev_->CR2=tmpreg; |
|
179 | _dev_->CR2=tmpreg; | |
179 | i2cdisable(dev); |
|
180 | i2cdisable(dev); | |
180 | tmpreg=_dev_->CCR; |
|
181 | tmpreg=_dev_->CCR; | |
181 | APB1Freq=getAPB1Freq(); |
|
182 | APB1Freq=getAPB1Freq(); | |
182 | if(speed>100000) //100kHz= standard mode, 400kHz= fast mode |
|
183 | if(speed>100000) //100kHz= standard mode, 400kHz= fast mode | |
183 | { |
|
184 | { | |
184 | if(speed<=400000) |
|
185 | if(speed<=400000) | |
185 | { |
|
186 | { | |
186 | tmpreg |= 1<<15; |
|
187 | tmpreg |= 1<<15; | |
187 | tmpreg &= ~(1<<14); |
|
188 | tmpreg &= ~(1<<14); | |
188 | tmpreg &= ~(0xfff); |
|
189 | tmpreg &= ~(0xfff); | |
189 | tmpreg |= 0xfff & (APB1Freq/(3*speed)); |
|
190 | tmpreg |= 0xfff & (APB1Freq/(3*speed)); | |
190 | } |
|
191 | } | |
191 | } |
|
192 | } | |
192 | else |
|
193 | else | |
193 | { |
|
194 | { | |
194 | tmpreg &= ~(1<<15); |
|
195 | tmpreg &= ~(1<<15); | |
195 | tmpreg &= ~(0xfff); |
|
196 | tmpreg &= ~(0xfff); | |
196 | tmpreg |= 0xfff & (APB1Freq/(2*speed)); |
|
197 | tmpreg |= 0xfff & (APB1Freq/(2*speed)); | |
197 | } |
|
198 | } | |
198 | _dev_->CCR=tmpreg; |
|
199 | _dev_->CCR=tmpreg; | |
199 | tmpreg=_dev_->TRISE; |
|
200 | tmpreg=_dev_->TRISE; | |
200 | tmpreg &= ~(0x3f); |
|
201 | tmpreg &= ~(0x3f); | |
201 | tmpreg |= (APB1Freq/1000000)+1; |
|
202 | tmpreg |= (APB1Freq/1000000)+1; | |
202 | _dev_->TRISE = tmpreg; |
|
203 | _dev_->TRISE = tmpreg; | |
203 | i2cenable(dev); |
|
204 | i2cenable(dev); | |
204 | return 0; |
|
205 | return 0; | |
205 | } |
|
206 | } | |
206 | } |
|
207 | } | |
207 | return -1; |
|
208 | return -1; | |
208 | } |
|
209 | } | |
209 |
|
210 | |||
210 | int i2cbusy(i2c_t dev) |
|
211 | int i2cbusy(i2c_t dev) | |
211 | { |
|
212 | { | |
212 | if((dev<i2c4)&&(dev>=i2c1)) |
|
213 | if((dev<i2c4)&&(dev>=i2c1)) | |
213 | { |
|
214 | { | |
214 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
215 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
215 | if((_dev_->SR2 & 2) ==2) return 1; /* Dev is busy */ |
|
216 | if((_dev_->SR2 & 2) ==2) return 1; /* Dev is busy */ | |
216 | return 0; /* Dev isn't busy */ |
|
217 | return 0; /* Dev isn't busy */ | |
217 | } |
|
218 | } | |
218 | return -1; /* Error, dev is out of range */ |
|
219 | return -1; /* Error, dev is out of range */ | |
219 | } |
|
220 | } | |
220 |
|
221 | |||
221 | int i2cwrite(i2c_t dev,char address,char* data,int count) |
|
222 | int i2cwrite(i2c_t dev,char address,char* data,int count) | |
222 | { |
|
223 | { | |
223 | if((dev<i2c4)&&(dev>=i2c1)) |
|
224 | if((dev<i2c4)&&(dev>=i2c1)) | |
224 | { |
|
225 | { | |
225 | int timeout=i2ctimeout; |
|
226 | int timeout=i2ctimeout; | |
226 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
227 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
227 | while(i2cbusy(dev)) |
|
228 | while(i2cbusy(dev)) | |
228 | { |
|
229 | { | |
229 | if(0==(timeout--)) |
|
230 | if(0==(timeout--)) | |
230 | { |
|
231 | { | |
231 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
232 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
232 | return -1; |
|
233 | return -1; | |
233 | } |
|
234 | } | |
234 | } |
|
235 | } | |
235 | _dev_->CR1 |= 1<<8; |
|
236 | _dev_->CR1 |= 1<<8; | |
236 | timeout=i2ctimeout; |
|
237 | timeout=i2ctimeout; | |
237 | while(!i2cStatusCheck(dev,((uint32_t)0x00030001))) |
|
238 | while(!i2cStatusCheck(dev,((uint32_t)0x00030001))) | |
238 | { |
|
239 | { | |
239 | if(0==(timeout--)) |
|
240 | if(0==(timeout--)) | |
240 | { |
|
241 | { | |
241 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
242 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
242 | return -1; |
|
243 | return -1; | |
243 | } |
|
244 | } | |
244 | } |
|
245 | } | |
245 | _dev_->DR= address<<1; |
|
246 | _dev_->DR= address<<1; | |
246 | timeout=i2ctimeout; |
|
247 | timeout=i2ctimeout; | |
247 | while(!i2cStatusCheck(dev, ((uint32_t)0x00070082))) |
|
248 | while(!i2cStatusCheck(dev, ((uint32_t)0x00070082))) | |
248 | { |
|
249 | { | |
249 | if(0==(timeout--)) |
|
250 | if(0==(timeout--)) | |
250 | { |
|
251 | { | |
251 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
252 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
252 | return -1; |
|
253 | return -1; | |
253 | } |
|
254 | } | |
254 | } |
|
255 | } | |
255 | address=_dev_->SR2; |
|
256 | address=_dev_->SR2; | |
256 | for(int i=0;i<count;i++) |
|
257 | for(int i=0;i<count;i++) | |
257 | { |
|
258 | { | |
258 | timeout=i2ctimeout; |
|
259 | timeout=i2ctimeout; | |
259 | while(!i2cStatusCheck(dev,((uint32_t)0x00070080))) |
|
260 | while(!i2cStatusCheck(dev,((uint32_t)0x00070080))) | |
260 | { |
|
261 | { | |
261 | if(0==(timeout--)) |
|
262 | if(0==(timeout--)) | |
262 | { |
|
263 | { | |
263 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
264 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
264 | return -1; |
|
265 | return -1; | |
265 | } |
|
266 | } | |
266 | } |
|
267 | } | |
267 | _dev_->DR= data[i]; |
|
268 | _dev_->DR= data[i]; | |
268 | } |
|
269 | } | |
269 | timeout=i2ctimeout; |
|
270 | timeout=i2ctimeout; | |
270 | while(!i2cStatusCheck(dev,1<<7)) |
|
271 | while(!i2cStatusCheck(dev,1<<7)) | |
271 | { |
|
272 | { | |
272 | if(0==(timeout--)) |
|
273 | if(0==(timeout--)) | |
273 | { |
|
274 | { | |
274 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
275 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
275 | return -1; |
|
276 | return -1; | |
276 | } |
|
277 | } | |
277 | } |
|
278 | } | |
278 | timeout=i2ctimeout; |
|
279 | timeout=i2ctimeout; | |
279 | while(!i2cStatusCheck(dev,1<<2)) |
|
280 | while(!i2cStatusCheck(dev,1<<2)) | |
280 | { |
|
281 | { | |
281 | if(0==(timeout--)) |
|
282 | if(0==(timeout--)) | |
282 | { |
|
283 | { | |
283 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
284 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
284 | return -1; |
|
285 | return -1; | |
285 | } |
|
286 | } | |
286 | } |
|
287 | } | |
287 | _dev_->CR1 |= 1<<9; |
|
288 | _dev_->CR1 |= 1<<9; | |
288 | return count; |
|
289 | return count; | |
289 | } |
|
290 | } | |
290 | return -1; |
|
291 | return -1; | |
291 | } |
|
292 | } | |
292 |
|
293 | |||
293 | int i2cread(i2c_t dev,char address,char* data,int count) |
|
294 | int i2cread(i2c_t dev,char address,char* data,int count) | |
294 | { |
|
295 | { | |
295 | if((dev<i2c4)&&(dev>=i2c1)) |
|
296 | if((dev<i2c4)&&(dev>=i2c1)) | |
296 | { |
|
297 | { | |
297 | int i=0; |
|
298 | int i=0; | |
298 | int timeout=i2ctimeout; |
|
299 | int timeout=i2ctimeout; | |
299 | while(i2cbusy(dev)) |
|
300 | while(i2cbusy(dev)) | |
300 | { |
|
301 | { | |
301 | if(0==(timeout--)) |
|
302 | if(0==(timeout--)) | |
302 | { |
|
303 | { | |
303 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
304 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
304 | return -1; |
|
305 | return -1; | |
305 | } |
|
306 | } | |
306 | } |
|
307 | } | |
307 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
308 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
308 | _dev_->CR1 |= (1<<8) + (1<<10); |
|
309 | _dev_->CR1 |= (1<<8) + (1<<10); | |
309 | timeout=i2ctimeout; |
|
310 | timeout=i2ctimeout; | |
310 | while(!i2cStatusCheck(dev,0x00030001)) |
|
311 | while(!i2cStatusCheck(dev,0x00030001)) | |
311 | { |
|
312 | { | |
312 | if(0==(timeout--)) |
|
313 | if(0==(timeout--)) | |
313 | { |
|
314 | { | |
314 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
315 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
315 | return -1; |
|
316 | return -1; | |
316 | } |
|
317 | } | |
317 | } |
|
318 | } | |
318 | _dev_->DR= (address<<1) + 1; |
|
319 | _dev_->DR= (address<<1) + 1; | |
319 | while(!i2cStatusCheck(dev,0x000002)) |
|
320 | while(!i2cStatusCheck(dev,0x000002)) | |
320 | { |
|
321 | { | |
321 | if(0==(timeout--)) |
|
322 | if(0==(timeout--)) | |
322 | { |
|
323 | { | |
323 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
324 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
324 | return -1; |
|
325 | return -1; | |
325 | } |
|
326 | } | |
326 | } |
|
327 | } | |
327 | if(count==1) |
|
328 | if(count==1) | |
328 | { |
|
329 | { | |
329 | _dev_->CR1 &= ~(1<<10); |
|
330 | _dev_->CR1 &= ~(1<<10); | |
330 | } |
|
331 | } | |
331 | address=_dev_->SR2; |
|
332 | address=_dev_->SR2; | |
332 | for(i=0;i<(count-1);i++) |
|
333 | for(i=0;i<(count-1);i++) | |
333 | { |
|
334 | { | |
334 | timeout=i2ctimeout; |
|
335 | timeout=i2ctimeout; | |
335 | while(!i2cStatusCheck(dev,0x0000040)) |
|
336 | while(!i2cStatusCheck(dev,0x0000040)) | |
336 | { |
|
337 | { | |
337 | if(0==(timeout--)) |
|
338 | if(0==(timeout--)) | |
338 | { |
|
339 | { | |
339 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
340 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
340 | return -1; |
|
341 | return -1; | |
341 | } |
|
342 | } | |
342 | } |
|
343 | } | |
343 | data[i]=_dev_->DR; |
|
344 | data[i]=_dev_->DR; | |
344 | } |
|
345 | } | |
345 | _dev_->CR1 &= ~(1<<10); |
|
346 | _dev_->CR1 &= ~(1<<10); | |
346 | _dev_->CR1 |= 1<<9; |
|
347 | _dev_->CR1 |= 1<<9; | |
347 | timeout=i2ctimeout; |
|
348 | timeout=i2ctimeout; | |
348 | while(!i2cStatusCheck(dev,0x0000040)) |
|
349 | while(!i2cStatusCheck(dev,0x0000040)) | |
349 | { |
|
350 | { | |
350 | if(0==(timeout--)) |
|
351 | if(0==(timeout--)) | |
351 | { |
|
352 | { | |
352 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
353 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
353 | return -1; |
|
354 | return -1; | |
354 | } |
|
355 | } | |
355 | } |
|
356 | } | |
356 | data[i]=_dev_->DR; |
|
357 | data[i]=_dev_->DR; | |
357 | timeout=i2ctimeout; |
|
358 | timeout=i2ctimeout; | |
358 | while(_dev_->CR1 & ((uint16_t)0x0200)) |
|
359 | while(_dev_->CR1 & ((uint16_t)0x0200)) | |
359 | { |
|
360 | { | |
360 | if(0==(timeout--)) |
|
361 | if(0==(timeout--)) | |
361 | { |
|
362 | { | |
362 | printf("Exited on timeout @ line %d\n\r",__LINE__); |
|
363 | printf("Exited on timeout @ line %d\n\r",__LINE__); | |
363 | return -1; |
|
364 | return -1; | |
364 | } |
|
365 | } | |
365 | } |
|
366 | } | |
366 | _dev_->CR1 |= 1<<10; |
|
367 | _dev_->CR1 |= 1<<10; | |
367 | return count; |
|
368 | return count; | |
368 | } |
|
369 | } | |
369 | return -1; |
|
370 | return -1; | |
370 | } |
|
371 | } | |
371 |
|
372 | |||
372 |
|
373 | |||
373 | int i2cStatusCheck(i2c_t dev,int32_t flagMask) |
|
374 | int i2cStatusCheck(i2c_t dev,int32_t flagMask) | |
374 | { |
|
375 | { | |
375 | int32_t flag; |
|
376 | int32_t flag; | |
376 | if((dev<i2c4)&&(dev>=i2c1)) |
|
377 | if((dev<i2c4)&&(dev>=i2c1)) | |
377 | { |
|
378 | { | |
378 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; |
|
379 | I2C_TypeDef* _dev_ = _i2c_dev_table[(int)dev]; | |
379 | flag= _dev_->SR1 + (_dev_->SR2<<16); |
|
380 | flag= _dev_->SR1 + (_dev_->SR2<<16); | |
380 | if(flagMask==(flag & flagMask)) |
|
381 | if(flagMask==(flag & flagMask)) | |
381 | return 1; |
|
382 | return 1; | |
382 | return 0; |
|
383 | return 0; | |
383 | } |
|
384 | } | |
384 | return -1; |
|
385 | return -1; | |
385 | } |
|
386 | } | |
386 |
|
387 | |||
387 |
|
388 |
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