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
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
|
/**
******************************************************************************
* @file lib_pwm.c
* @author Application Team
* @version V4.4.0
* @date 2018-09-27
* @brief PWM library.
******************************************************************************
* @attention
*
******************************************************************************
*/
#include "lib_pwm.h"
/**
* @brief PWM timebase initialization.
* @param PWMx: PWM0~PWM3
InitStruct:PWM BASE configuration.
ClockDivision:
PWM_CLKDIV_2
PWM_CLKDIV_4
PWM_CLKDIV_8
PWM_CLKDIV_16
Mode:
PWM_MODE_STOP
PWM_MODE_UPCOUNT
PWM_MODE_CONTINUOUS
PWM_MODE_UPDOWN
ClockSource:
PWM_CLKSRC_APB
PWM_CLKSRC_APBD128
* @retval None
*/
void PWM_BaseInit(PWM_TypeDef *PWMx, PWM_BaseInitType *InitStruct)
{
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_CLKDIV(InitStruct->ClockDivision));
assert_parameters(IS_PWM_CNTMODE(InitStruct->Mode));
assert_parameters(IS_PWM_CLKSRC(InitStruct->ClockSource));
tmp = PWMx->CTL;
tmp &= ~(PWM_CTL_ID\
|PWM_CTL_MC\
|PWM_CTL_TESL);
tmp |= (InitStruct->ClockDivision\
|InitStruct->Mode\
|InitStruct->ClockSource);
PWMx->CTL = tmp;
}
/**
* @brief Fills each PWM_BaseInitType member with its default value.
* @param InitStruct: pointer to an PWM_BaseInitType structure which will be initialized.
* @retval None
*/
void PWM_BaseStructInit(PWM_BaseInitType *InitStruct)
{
/*------------ Reset PWM base init structure parameters values ------------*/
/* Initialize the ClockDivision member */
InitStruct->ClockDivision = PWM_CLKDIV_2;
/* Initialize the ClockSource member */
InitStruct->ClockSource = PWM_CLKSRC_APBD128;
/* Initialize the Mode member */
InitStruct->Mode = PWM_MODE_STOP;
}
/**
* @brief Fills each PWM_OCInitType member with its default value.
* @param OCInitType: pointer to an PWM_OCInitType structure which will be initialized.
* @retval None
*/
void PWM_OCStructInit(PWM_OCInitType *OCInitType)
{
/*------- Reset PWM output channel init structure parameters values --------*/
/* Initialize the OutMode member */
OCInitType->OutMode = PWM_OUTMOD_CONST;
/* Initialize the Period member */
OCInitType->Period = 0;
}
/**
* @brief PWM output compare channel 0.
* @param PWMx: PWM0~PWM3
OCInitType:PWM output compare configuration.
OutMode:
PWM_OUTMOD_CONST
PWM_OUTMOD_SET
PWM_OUTMOD_TOGGLE_RESET
PWM_OUTMOD_SET_RESET
PWM_OUTMOD_TOGGLE
PWM_OUTMOD_RESET
PWM_OUTMOD_TOGGLE_SET
PWM_OUTMOD_RESET_SET
Period: 0 ~ 0xFFFF
* @retval None
*/
void PWM_OC0Init(PWM_TypeDef *PWMx, PWM_OCInitType *OCInitType)
{
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_OUTMODE(OCInitType->OutMode));
assert_parameters(IS_PWM_CCR(OCInitType->Period));
tmp = PWMx->CCTL0;
tmp &= ~(PWM_CCTL_OUTMOD | PWM_CCTL_CCIGG);
tmp |= OCInitType->OutMode;
PWMx->CCTL0 = tmp;
PWMx->CCR0 = OCInitType->Period;
}
/**
* @brief PWM output compare channel 1.
* @param PWMx: PWM0~PWM3
OCInitType:PWM output compare configuration.
OutMode:
PWM_OUTMOD_CONST
PWM_OUTMOD_SET
PWM_OUTMOD_TOGGLE_RESET
PWM_OUTMOD_SET_RESET
PWM_OUTMOD_TOGGLE
PWM_OUTMOD_RESET
PWM_OUTMOD_TOGGLE_SET
PWM_OUTMOD_RESET_SET
Period: 0 ~ 0xFFFF
* @retval None
*/
void PWM_OC1Init(PWM_TypeDef *PWMx, PWM_OCInitType *OCInitType)
{
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_OUTMODE(OCInitType->OutMode));
assert_parameters(IS_PWM_CCR(OCInitType->Period));
tmp = PWMx->CCTL1;
tmp &= ~(PWM_CCTL_OUTMOD | PWM_CCTL_CCIGG);
tmp |= OCInitType->OutMode;
PWMx->CCTL1 = tmp;
PWMx->CCR1 = OCInitType->Period;
}
/**
* @brief PWM output compare channel 2.
* @param PWMx: PWM0~PWM3
OCInitType:PWM output compare configuration.
OutMode:
PWM_OUTMOD_CONST
PWM_OUTMOD_SET
PWM_OUTMOD_TOGGLE_RESET
PWM_OUTMOD_SET_RESET
PWM_OUTMOD_TOGGLE
PWM_OUTMOD_RESET
PWM_OUTMOD_TOGGLE_SET
PWM_OUTMOD_RESET_SET
Period: 0 ~ 0xFFFF
* @retval None
*/
void PWM_OC2Init(PWM_TypeDef *PWMx, PWM_OCInitType *OCInitType)
{
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_OUTMODE(OCInitType->OutMode));
assert_parameters(IS_PWM_CCR(OCInitType->Period));
tmp = PWMx->CCTL2;
tmp &= ~(PWM_CCTL_OUTMOD | PWM_CCTL_CCIGG);
tmp |= OCInitType->OutMode;
PWMx->CCTL2 = tmp;
PWMx->CCR2 = OCInitType->Period;
}
/**
* @brief PWM base interrupt configure.
* @param PWMx: PWM0~PWM3
NewState:
ENABLE
DISABLE
* @retval None
*/
void PWM_BaseINTConfig(PWM_TypeDef *PWMx, uint32_t NewState)
{
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_FUNCTIONAL_STATE(NewState));
tmp = PWMx->CTL;
tmp &= ~(PWM_CTL_IE | PWM_CTL_IFG);
if (NewState == ENABLE)
{
tmp |= PWM_CTL_IE;
}
PWMx->CTL = tmp;
}
/**
* @brief Get PWM base interrupt status.
* @param PWMx: PWM0~PWM3
* @retval interrupt status.
*/
uint8_t PWM_GetBaseINTStatus(PWM_TypeDef *PWMx)
{
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
if (PWMx->CTL&PWM_CTL_IFG)
return 1;
else
return 0;
}
/**
* @brief Clear PWM base interrupt status.
* @param PWMx: PWM0~PWM3
* @retval None.
*/
void PWM_ClearBaseINTStatus(PWM_TypeDef *PWMx)
{
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
PWMx->CTL |= PWM_CTL_IFG;
}
/**
* @brief channel interrupt configure.
* @param PWMx: PWM0~PWM3
Channel:
PWM_CHANNEL_0
PWM_CHANNEL_1
PWM_CHANNEL_2
NewState:
ENABLE
DISABLE
* @retval None
*/
void PWM_ChannelINTConfig(PWM_TypeDef *PWMx, uint32_t Channel, uint32_t NewState)
{
__IO uint32_t *addr;
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_CHANNEL(Channel));
assert_parameters(IS_FUNCTIONAL_STATE(NewState));
addr = &PWMx->CCTL0 + Channel;
tmp = *addr;
tmp &= ~(PWM_CCTL_CCIE | PWM_CCTL_CCIGG);
if (NewState == ENABLE)
{
tmp |= PWM_CCTL_CCIE;
}
*addr = tmp;
}
/**
* @brief Get channel interrupt status.
* @param PWMx: PWM0~PWM3
Channel:
PWM_CHANNEL_0
PWM_CHANNEL_1
PWM_CHANNEL_2
* @retval interrupt status
*/
uint8_t PWM_GetChannelINTStatus(PWM_TypeDef *PWMx, uint32_t Channel)
{
__IO uint32_t *addr;
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_CHANNEL(Channel));
addr = &PWMx->CCTL0 + Channel;
tmp = *addr;
if (tmp & PWM_CCTL_CCIGG)
{
return 1;
}
else
{
return 0;
}
}
/**
* @brief Clear channel interrupt status.
* @param PWMx: PWM0~PWM3
Channel:
PWM_CHANNEL_0
PWM_CHANNEL_1
PWM_CHANNEL_2
* @retval None
*/
void PWM_ClearChannelINTStatus(PWM_TypeDef *PWMx, uint32_t Channel)
{
__IO uint32_t *addr;
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_CHANNEL(Channel));
addr = &PWMx->CCTL0 + Channel;
tmp = *addr;
tmp &= ~PWM_CCTL_CCIGG;
tmp |= PWM_CCTL_CCIGG;
*addr = tmp;
}
/**
* @brief PWM clear counter.
* @param PWMx: PWM0~PWM3
* @retval None
*/
void PWM_ClearCounter(PWM_TypeDef *PWMx)
{
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
PWMx->CTL |= PWM_CTL_CLR;
}
/**
* @brief Configure PWMx channelx's CCR value.
* @param PWMx: PWM0~PWM3
Channel:
PWM_CHANNEL_0
PWM_CHANNEL_1
PWM_CHANNEL_2
Period: 0 ~ 0xFFFF
* @retval None
*/
void PWM_CCRConfig(PWM_TypeDef *PWMx, uint32_t Channel, uint16_t Period)
{
__IO uint32_t *addr;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_CHANNEL(Channel));
addr = &PWMx->CCR0 + Channel;
*addr = Period;
}
/**
* @brief pwm output line selection.
* @param OutSelection:
PWM0_OUT0
PWM0_OUT1
PWM0_OUT2
PWM1_OUT0
PWM1_OUT1
PWM1_OUT2
PWM2_OUT0
PWM2_OUT1
PWM2_OUT2
PWM3_OUT0
PWM3_OUT1
PWM3_OUT2
OLine: can use the ��|�� operator
PWM_OLINE_0
PWM_OLINE_1
PWM_OLINE_2
PWM_OLINE_3
* @note PWM Single channel's output waveform can be output on multiple output lines.
* Multiple-line configuration can be performed by using the ��|�� operator.
* ex: PWM_OLineConfig(PWM0_OUT0, PWM_OLINE_0 | PWM_OLINE_2)
* PWM0 channel0 output by PWM0&PWM2's lien.
* @retval None
*/
void PWM_OLineConfig(uint32_t OutSelection, uint32_t OLine)
{
uint32_t tmp;
uint32_t position = 0;
/* Check parameters */
assert_parameters(IS_PWM_OUTLINE(OLine));
assert_parameters(IS_PWM_OUTSEL(OutSelection));
tmp = PWMMUX->OSEL;
while ((OLine >> position) != 0UL)
{
if ((OLine >> position) & 1UL)
{
tmp &= ~(PWM_O_SEL_O_SEL0 << (position * 4));
tmp |= (OutSelection << (position * 4));
}
position++;
}
PWMMUX->OSEL = tmp;
}
/**
* @brief PWM output enable.
* @param PWMx: PWM0~PWM3
Channel:
PWM_CHANNEL_0
PWM_CHANNEL_1
PWM_CHANNEL_2
NewState:
ENABLE
DISABLE
* @retval None
*/
void PWM_OutputCmd(PWM_TypeDef *PWMx, uint32_t Channel, uint32_t NewState)
{
__IO uint32_t *addr;
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_CHANNEL(Channel));
assert_parameters(IS_FUNCTIONAL_STATE(NewState));
addr = &PWMx->CCTL0 + Channel;
tmp = *addr;
tmp &= ~PWM_CCTL_CCIGG;
if (NewState == ENABLE)
tmp |= PWM_CCTL_OUTEN;
else
tmp &= ~PWM_CCTL_OUTEN;
*addr = tmp;
}
/**
* @brief Set channel output level.
* @param PWMx: PWM0~PWM3
Channel:
PWM_CHANNEL_0
PWM_CHANNEL_1
PWM_CHANNEL_2
Level:
PWM_LEVEL_HIGH
PWM_LEVEL_LOW
* @retval None
*/
void PWM_SetOutLevel(PWM_TypeDef *PWMx, uint32_t Channel, uint32_t Level)
{
__IO uint32_t *addr;
uint32_t tmp;
/* Check parameters */
assert_parameters(IS_PWM_ALL_INSTANCE(PWMx));
assert_parameters(IS_PWM_CHANNEL(Channel));
assert_parameters(IS_PWM_OUTLVL(Level));
addr = &PWMx->CCTL0 + Channel;
tmp = *addr;
tmp &= ~(PWM_CCTL_OUT | PWM_CCTL_CCIGG);
tmp |= Level;
*addr = tmp;
}
/*********************************** END OF FILE ******************************/
|
