Outline ![]()
Files ![]()
loading...
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
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
/**
******************************************************************************
* @file stm32f4xx_hal_dac.c
* @author MCD Application Team
* @brief DAC HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Digital to Analog Converter (DAC) peripheral:
* + Initialization and de-initialization functions
* + IO operation functions
* + Peripheral Control functions
* + Peripheral State and Errors functions
*
*
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
@verbatim
==============================================================================
##### DAC Peripheral features #####
==============================================================================
[..]
*** DAC Channels ***
====================
[..]
STM32F4 devices integrate two 12-bit Digital Analog Converters
The 2 converters (i.e. channel1 & channel2)
can be used independently or simultaneously (dual mode):
(#) DAC channel1 with DAC_OUT1 (PA4) as output
(#) DAC channel2 with DAC_OUT2 (PA5) as output
*** DAC Triggers ***
====================
[..]
Digital to Analog conversion can be non-triggered using DAC_TRIGGER_NONE
and DAC_OUT1/DAC_OUT2 is available once writing to DHRx register.
[..]
Digital to Analog conversion can be triggered by:
(#) External event: EXTI Line 9 (any GPIOx_PIN_9) using DAC_TRIGGER_EXT_IT9.
The used pin (GPIOx_PIN_9) must be configured in input mode.
(#) Timers TRGO: TIM2, TIM4, TIM5, TIM6, TIM7 and TIM8
(DAC_TRIGGER_T2_TRGO, DAC_TRIGGER_T4_TRGO...)
(#) Software using DAC_TRIGGER_SOFTWARE
*** DAC Buffer mode feature ***
===============================
[..]
Each DAC channel integrates an output buffer that can be used to
reduce the output impedance, and to drive external loads directly
without having to add an external operational amplifier.
To enable, the output buffer use
sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
[..]
(@) Refer to the device datasheet for more details about output
impedance value with and without output buffer.
*** DAC wave generation feature ***
===================================
[..]
Both DAC channels can be used to generate
(#) Noise wave
(#) Triangle wave
*** DAC data format ***
=======================
[..]
The DAC data format can be:
(#) 8-bit right alignment using DAC_ALIGN_8B_R
(#) 12-bit left alignment using DAC_ALIGN_12B_L
(#) 12-bit right alignment using DAC_ALIGN_12B_R
*** DAC data value to voltage correspondence ***
================================================
[..]
The analog output voltage on each DAC channel pin is determined
by the following equation:
[..]
DAC_OUTx = VREF+ * DOR / 4095
(+) with DOR is the Data Output Register
[..]
VREF+ is the input voltage reference (refer to the device datasheet)
[..]
e.g. To set DAC_OUT1 to 0.7V, use
(+) Assuming that VREF+ = 3.3V, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V
*** DMA requests ***
=====================
[..]
A DMA request can be generated when an external trigger (but not a software trigger)
occurs if DMA1 requests are enabled using HAL_DAC_Start_DMA().
DMA1 requests are mapped as following:
(#) DAC channel1 mapped on DMA1 Stream5 channel7 which must be
already configured
(#) DAC channel2 mapped on DMA1 Stream6 channel7 which must be
already configured
[..]
(@) For Dual mode and specific signal (Triangle and noise) generation please
refer to Extended Features Driver description
##### How to use this driver #####
==============================================================================
[..]
(+) DAC APB clock must be enabled to get write access to DAC
registers using HAL_DAC_Init()
(+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode.
(+) Configure the DAC channel using HAL_DAC_ConfigChannel() function.
(+) Enable the DAC channel using HAL_DAC_Start() or HAL_DAC_Start_DMA() functions.
*** Polling mode IO operation ***
=================================
[..]
(+) Start the DAC peripheral using HAL_DAC_Start()
(+) To read the DAC last data output value, use the HAL_DAC_GetValue() function.
(+) Stop the DAC peripheral using HAL_DAC_Stop()
*** DMA mode IO operation ***
==============================
[..]
(+) Start the DAC peripheral using HAL_DAC_Start_DMA(), at this stage the user specify the length
of data to be transferred at each end of conversion
First issued trigger will start the conversion of the value previously set by HAL_DAC_SetValue().
(+) At the middle of data transfer HAL_DAC_ConvHalfCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
function is executed and user can add his own code by customization of function pointer
HAL_DAC_ConvHalfCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
(+) At The end of data transfer HAL_DAC_ConvCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
function is executed and user can add his own code by customization of function pointer
HAL_DAC_ConvCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
(+) In case of transfer Error, HAL_DAC_ErrorCallbackCh1() function is executed and user can
add his own code by customization of function pointer HAL_DAC_ErrorCallbackCh1
(+) In case of DMA underrun, DAC interruption triggers and execute internal function HAL_DAC_IRQHandler.
HAL_DAC_DMAUnderrunCallbackCh1() or HAL_DACEx_DMAUnderrunCallbackCh2()
function is executed and user can add his own code by customization of function pointer
HAL_DAC_DMAUnderrunCallbackCh1() or HAL_DACEx_DMAUnderrunCallbackCh2() and
add his own code by customization of function pointer HAL_DAC_ErrorCallbackCh1()
(+) Stop the DAC peripheral using HAL_DAC_Stop_DMA()
*** Callback registration ***
=============================================
[..]
The compilation define USE_HAL_DAC_REGISTER_CALLBACKS when set to 1
allows the user to configure dynamically the driver callbacks.
Use Functions HAL_DAC_RegisterCallback() to register a user callback,
it allows to register following callbacks:
(+) ConvCpltCallbackCh1 : callback when a half transfer is completed on Ch1.
(+) ConvHalfCpltCallbackCh1 : callback when a transfer is completed on Ch1.
(+) ErrorCallbackCh1 : callback when an error occurs on Ch1.
(+) DMAUnderrunCallbackCh1 : callback when an underrun error occurs on Ch1.
(+) ConvCpltCallbackCh2 : callback when a half transfer is completed on Ch2.
(+) ConvHalfCpltCallbackCh2 : callback when a transfer is completed on Ch2.
(+) ErrorCallbackCh2 : callback when an error occurs on Ch2.
(+) DMAUnderrunCallbackCh2 : callback when an underrun error occurs on Ch2.
(+) MspInitCallback : DAC MspInit.
(+) MspDeInitCallback : DAC MspdeInit.
This function takes as parameters the HAL peripheral handle, the Callback ID
and a pointer to the user callback function.
Use function HAL_DAC_UnRegisterCallback() to reset a callback to the default
weak (overridden) function. It allows to reset following callbacks:
(+) ConvCpltCallbackCh1 : callback when a half transfer is completed on Ch1.
(+) ConvHalfCpltCallbackCh1 : callback when a transfer is completed on Ch1.
(+) ErrorCallbackCh1 : callback when an error occurs on Ch1.
(+) DMAUnderrunCallbackCh1 : callback when an underrun error occurs on Ch1.
(+) ConvCpltCallbackCh2 : callback when a half transfer is completed on Ch2.
(+) ConvHalfCpltCallbackCh2 : callback when a transfer is completed on Ch2.
(+) ErrorCallbackCh2 : callback when an error occurs on Ch2.
(+) DMAUnderrunCallbackCh2 : callback when an underrun error occurs on Ch2.
(+) MspInitCallback : DAC MspInit.
(+) MspDeInitCallback : DAC MspdeInit.
(+) All Callbacks
This function) takes as parameters the HAL peripheral handle and the Callback ID.
By default, after the HAL_DAC_Init and if the state is HAL_DAC_STATE_RESET
all callbacks are reset to the corresponding legacy weak (overridden) functions.
Exception done for MspInit and MspDeInit callbacks that are respectively
reset to the legacy weak (overridden) functions in the HAL_DAC_Init
and HAL_DAC_DeInit only when these callbacks are null (not registered beforehand).
If not, MspInit or MspDeInit are not null, the HAL_DAC_Init and HAL_DAC_DeInit
keep and use the user MspInit/MspDeInit callbacks (registered beforehand)
Callbacks can be registered/unregistered in READY state only.
Exception done for MspInit/MspDeInit callbacks that can be registered/unregistered
in READY or RESET state, thus registered (user) MspInit/DeInit callbacks can be used
during the Init/DeInit.
In that case first register the MspInit/MspDeInit user callbacks
using HAL_DAC_RegisterCallback before calling HAL_DAC_DeInit
or HAL_DAC_Init function.
When The compilation define USE_HAL_DAC_REGISTER_CALLBACKS is set to 0 or
not defined, the callback registering feature is not available
and weak (overridden) callbacks are used.
*** DAC HAL driver macros list ***
=============================================
[..]
Below the list of most used macros in DAC HAL driver.
(+) __HAL_DAC_ENABLE : Enable the DAC peripheral
(+) __HAL_DAC_DISABLE : Disable the DAC peripheral
(+) __HAL_DAC_CLEAR_FLAG: Clear the DAC's pending flags
(+) __HAL_DAC_GET_FLAG: Get the selected DAC's flag status
[..]
(@) You can refer to the DAC HAL driver header file for more useful macros
@endverbatim
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
#ifdef HAL_DAC_MODULE_ENABLED
#if defined(DAC)
/** @defgroup DAC DAC
* @brief DAC driver modules
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions -------------------------------------------------------*/
/** @defgroup DAC_Exported_Functions DAC Exported Functions
* @{
*/
/** @defgroup DAC_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and Configuration functions
*
@verbatim
==============================================================================
##### Initialization and de-initialization functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Initialize and configure the DAC.
(+) De-initialize the DAC.
@endverbatim
* @{
*/
/**
* @brief Initialize the DAC peripheral according to the specified parameters
* in the DAC_InitStruct and initialize the associated handle.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_Init(DAC_HandleTypeDef *hdac)
{
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));
if (hdac->State == HAL_DAC_STATE_RESET)
{
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
/* Init the DAC Callback settings */
hdac->ConvCpltCallbackCh1 = HAL_DAC_ConvCpltCallbackCh1;
hdac->ConvHalfCpltCallbackCh1 = HAL_DAC_ConvHalfCpltCallbackCh1;
hdac->ErrorCallbackCh1 = HAL_DAC_ErrorCallbackCh1;
hdac->DMAUnderrunCallbackCh1 = HAL_DAC_DMAUnderrunCallbackCh1;
#if defined(DAC_CHANNEL2_SUPPORT)
hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2;
hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2;
hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2;
hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2;
#endif /* DAC_CHANNEL2_SUPPORT */
if (hdac->MspInitCallback == NULL)
{
hdac->MspInitCallback = HAL_DAC_MspInit;
}
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
/* Allocate lock resource and initialize it */
hdac->Lock = HAL_UNLOCKED;
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
/* Init the low level hardware */
hdac->MspInitCallback(hdac);
#else
/* Init the low level hardware */
HAL_DAC_MspInit(hdac);
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
}
/* Initialize the DAC state*/
hdac->State = HAL_DAC_STATE_BUSY;
/* Set DAC error code to none */
hdac->ErrorCode = HAL_DAC_ERROR_NONE;
/* Initialize the DAC state*/
hdac->State = HAL_DAC_STATE_READY;
/* Return function status */
return HAL_OK;
}
/**
* @brief Deinitialize the DAC peripheral registers to their default reset values.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_DeInit(DAC_HandleTypeDef *hdac)
{
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));
/* Change DAC state */
hdac->State = HAL_DAC_STATE_BUSY;
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
if (hdac->MspDeInitCallback == NULL)
{
hdac->MspDeInitCallback = HAL_DAC_MspDeInit;
}
/* DeInit the low level hardware */
hdac->MspDeInitCallback(hdac);
#else
/* DeInit the low level hardware */
HAL_DAC_MspDeInit(hdac);
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
/* Set DAC error code to none */
hdac->ErrorCode = HAL_DAC_ERROR_NONE;
/* Change DAC state */
hdac->State = HAL_DAC_STATE_RESET;
/* Release Lock */
__HAL_UNLOCK(hdac);
/* Return function status */
return HAL_OK;
}
/**
* @brief Initialize the DAC MSP.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval None
*/
__weak void HAL_DAC_MspInit(DAC_HandleTypeDef *hdac)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdac);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DAC_MspInit could be implemented in the user file
*/
}
/**
* @brief DeInitialize the DAC MSP.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval None
*/
__weak void HAL_DAC_MspDeInit(DAC_HandleTypeDef *hdac)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdac);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DAC_MspDeInit could be implemented in the user file
*/
}
/**
* @}
*/
/** @defgroup DAC_Exported_Functions_Group2 IO operation functions
* @brief IO operation functions
*
@verbatim
==============================================================================
##### IO operation functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Start conversion.
(+) Stop conversion.
(+) Start conversion and enable DMA transfer.
(+) Stop conversion and disable DMA transfer.
(+) Get result of conversion.
@endverbatim
* @{
*/
/**
* @brief Enables DAC and starts conversion of channel.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @param Channel The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_CHANNEL_1: DAC Channel1 selected
* @arg DAC_CHANNEL_2: DAC Channel2 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef *hdac, uint32_t Channel)
{
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(Channel));
/* Process locked */
__HAL_LOCK(hdac);
/* Change DAC state */
hdac->State = HAL_DAC_STATE_BUSY;
/* Enable the Peripheral */
__HAL_DAC_ENABLE(hdac, Channel);
if (Channel == DAC_CHANNEL_1)
{
/* Check if software trigger enabled */
if ((hdac->Instance->CR & (DAC_CR_TEN1 | DAC_CR_TSEL1)) == DAC_TRIGGER_SOFTWARE)
{
/* Enable the selected DAC software conversion */
SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG1);
}
}
#if defined(DAC_CHANNEL2_SUPPORT)
else
{
/* Check if software trigger enabled */
if ((hdac->Instance->CR & (DAC_CR_TEN2 | DAC_CR_TSEL2)) == (DAC_TRIGGER_SOFTWARE << (Channel & 0x10UL)))
{
/* Enable the selected DAC software conversion*/
SET_BIT(hdac->Instance->SWTRIGR, DAC_SWTRIGR_SWTRIG2);
}
}
#endif /* DAC_CHANNEL2_SUPPORT */
/* Change DAC state */
hdac->State = HAL_DAC_STATE_READY;
/* Process unlocked */
__HAL_UNLOCK(hdac);
/* Return function status */
return HAL_OK;
}
/**
* @brief Disables DAC and stop conversion of channel.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @param Channel The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_CHANNEL_1: DAC Channel1 selected
* @arg DAC_CHANNEL_2: DAC Channel2 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_Stop(DAC_HandleTypeDef *hdac, uint32_t Channel)
{
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(Channel));
/* Disable the Peripheral */
__HAL_DAC_DISABLE(hdac, Channel);
/* Change DAC state */
hdac->State = HAL_DAC_STATE_READY;
/* Return function status */
return HAL_OK;
}
/**
* @brief Enables DAC and starts conversion of channel.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @param Channel The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_CHANNEL_1: DAC Channel1 selected
* @arg DAC_CHANNEL_2: DAC Channel2 selected
* @param pData The source Buffer address.
* @param Length The length of data to be transferred from memory to DAC peripheral
* @param Alignment Specifies the data alignment for DAC channel.
* This parameter can be one of the following values:
* @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
* @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
* @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef *hdac, uint32_t Channel, const uint32_t *pData, uint32_t Length,
uint32_t Alignment)
{
HAL_StatusTypeDef status = HAL_ERROR;
uint32_t tmpreg;
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(Channel));
assert_param(IS_DAC_ALIGN(Alignment));
/* Process locked */
__HAL_LOCK(hdac);
/* Change DAC state */
hdac->State = HAL_DAC_STATE_BUSY;
if (Channel == DAC_CHANNEL_1)
{
/* Set the DMA transfer complete callback for channel1 */
hdac->DMA_Handle1->XferCpltCallback = DAC_DMAConvCpltCh1;
/* Set the DMA half transfer complete callback for channel1 */
hdac->DMA_Handle1->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh1;
/* Set the DMA error callback for channel1 */
hdac->DMA_Handle1->XferErrorCallback = DAC_DMAErrorCh1;
/* Enable the selected DAC channel1 DMA request */
SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN1);
/* Case of use of channel 1 */
switch (Alignment)
{
case DAC_ALIGN_12B_R:
/* Get DHR12R1 address */
tmpreg = (uint32_t)&hdac->Instance->DHR12R1;
break;
case DAC_ALIGN_12B_L:
/* Get DHR12L1 address */
tmpreg = (uint32_t)&hdac->Instance->DHR12L1;
break;
default: /* case DAC_ALIGN_8B_R */
/* Get DHR8R1 address */
tmpreg = (uint32_t)&hdac->Instance->DHR8R1;
break;
}
}
#if defined(DAC_CHANNEL2_SUPPORT)
else
{
/* Set the DMA transfer complete callback for channel2 */
hdac->DMA_Handle2->XferCpltCallback = DAC_DMAConvCpltCh2;
/* Set the DMA half transfer complete callback for channel2 */
hdac->DMA_Handle2->XferHalfCpltCallback = DAC_DMAHalfConvCpltCh2;
/* Set the DMA error callback for channel2 */
hdac->DMA_Handle2->XferErrorCallback = DAC_DMAErrorCh2;
/* Enable the selected DAC channel2 DMA request */
SET_BIT(hdac->Instance->CR, DAC_CR_DMAEN2);
/* Case of use of channel 2 */
switch (Alignment)
{
case DAC_ALIGN_12B_R:
/* Get DHR12R2 address */
tmpreg = (uint32_t)&hdac->Instance->DHR12R2;
break;
case DAC_ALIGN_12B_L:
/* Get DHR12L2 address */
tmpreg = (uint32_t)&hdac->Instance->DHR12L2;
break;
default: /* case DAC_ALIGN_8B_R */
/* Get DHR8R2 address */
tmpreg = (uint32_t)&hdac->Instance->DHR8R2;
break;
}
}
#endif /* DAC_CHANNEL2_SUPPORT */
if (Channel == DAC_CHANNEL_1)
{
/* Enable the DAC DMA underrun interrupt */
__HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR1);
/* Enable the DMA Stream */
status = HAL_DMA_Start_IT(hdac->DMA_Handle1, (uint32_t)pData, tmpreg, Length);
}
#if defined(DAC_CHANNEL2_SUPPORT)
else
{
/* Enable the DAC DMA underrun interrupt */
__HAL_DAC_ENABLE_IT(hdac, DAC_IT_DMAUDR2);
/* Enable the DMA Stream */
status = HAL_DMA_Start_IT(hdac->DMA_Handle2, (uint32_t)pData, tmpreg, Length);
}
#endif /* DAC_CHANNEL2_SUPPORT */
/* Process Unlocked */
__HAL_UNLOCK(hdac);
if (status == HAL_OK)
{
/* Enable the Peripheral */
__HAL_DAC_ENABLE(hdac, Channel);
}
else
{
hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
}
/* Return function status */
return status;
}
/**
* @brief Disables DAC and stop conversion of channel.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @param Channel The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_CHANNEL_1: DAC Channel1 selected
* @arg DAC_CHANNEL_2: DAC Channel2 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef *hdac, uint32_t Channel)
{
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(Channel));
/* Disable the selected DAC channel DMA request */
hdac->Instance->CR &= ~(DAC_CR_DMAEN1 << (Channel & 0x10UL));
/* Disable the Peripheral */
__HAL_DAC_DISABLE(hdac, Channel);
/* Disable the DMA Stream */
/* Channel1 is used */
if (Channel == DAC_CHANNEL_1)
{
/* Disable the DMA Stream */
(void)HAL_DMA_Abort(hdac->DMA_Handle1);
/* Disable the DAC DMA underrun interrupt */
__HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR1);
}
#if defined(DAC_CHANNEL2_SUPPORT)
else /* Channel2 is used for */
{
/* Disable the DMA Stream */
(void)HAL_DMA_Abort(hdac->DMA_Handle2);
/* Disable the DAC DMA underrun interrupt */
__HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR2);
}
#endif /* DAC_CHANNEL2_SUPPORT */
/* Change DAC state */
hdac->State = HAL_DAC_STATE_READY;
/* Return function status */
return HAL_OK;
}
/**
* @brief Handles DAC interrupt request
* This function uses the interruption of DMA
* underrun.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval None
*/
void HAL_DAC_IRQHandler(DAC_HandleTypeDef *hdac)
{
uint32_t itsource = hdac->Instance->CR;
uint32_t itflag = hdac->Instance->SR;
if ((itsource & DAC_IT_DMAUDR1) == DAC_IT_DMAUDR1)
{
/* Check underrun flag of DAC channel 1 */
if ((itflag & DAC_FLAG_DMAUDR1) == DAC_FLAG_DMAUDR1)
{
/* Change DAC state to error state */
hdac->State = HAL_DAC_STATE_ERROR;
/* Set DAC error code to channel1 DMA underrun error */
SET_BIT(hdac->ErrorCode, HAL_DAC_ERROR_DMAUNDERRUNCH1);
/* Clear the underrun flag */
__HAL_DAC_CLEAR_FLAG(hdac, DAC_FLAG_DMAUDR1);
/* Disable the selected DAC channel1 DMA request */
__HAL_DAC_DISABLE_IT(hdac, DAC_CR_DMAEN1);
/* Error callback */
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
hdac->DMAUnderrunCallbackCh1(hdac);
#else
HAL_DAC_DMAUnderrunCallbackCh1(hdac);
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
}
}
#if defined(DAC_CHANNEL2_SUPPORT)
if ((itsource & DAC_IT_DMAUDR2) == DAC_IT_DMAUDR2)
{
/* Check underrun flag of DAC channel 2 */
if ((itflag & DAC_FLAG_DMAUDR2) == DAC_FLAG_DMAUDR2)
{
/* Change DAC state to error state */
hdac->State = HAL_DAC_STATE_ERROR;
/* Set DAC error code to channel2 DMA underrun error */
SET_BIT(hdac->ErrorCode, HAL_DAC_ERROR_DMAUNDERRUNCH2);
/* Clear the underrun flag */
__HAL_DAC_CLEAR_FLAG(hdac, DAC_FLAG_DMAUDR2);
/* Disable the selected DAC channel2 DMA request */
__HAL_DAC_DISABLE_IT(hdac, DAC_CR_DMAEN2);
/* Error callback */
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
hdac->DMAUnderrunCallbackCh2(hdac);
#else
HAL_DACEx_DMAUnderrunCallbackCh2(hdac);
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
}
}
#endif /* DAC_CHANNEL2_SUPPORT */
}
/**
* @brief Set the specified data holding register value for DAC channel.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @param Channel The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_CHANNEL_1: DAC Channel1 selected
* @arg DAC_CHANNEL_2: DAC Channel2 selected
* @param Alignment Specifies the data alignment.
* This parameter can be one of the following values:
* @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
* @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
* @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
* @param Data Data to be loaded in the selected data holding register.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef *hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)
{
__IO uint32_t tmp = 0UL;
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(Channel));
assert_param(IS_DAC_ALIGN(Alignment));
assert_param(IS_DAC_DATA(Data));
tmp = (uint32_t)hdac->Instance;
if (Channel == DAC_CHANNEL_1)
{
tmp += DAC_DHR12R1_ALIGNMENT(Alignment);
}
#if defined(DAC_CHANNEL2_SUPPORT)
else
{
tmp += DAC_DHR12R2_ALIGNMENT(Alignment);
}
#endif /* DAC_CHANNEL2_SUPPORT */
/* Set the DAC channel selected data holding register */
*(__IO uint32_t *) tmp = Data;
/* Return function status */
return HAL_OK;
}
/**
* @brief Conversion complete callback in non-blocking mode for Channel1
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval None
*/
__weak void HAL_DAC_ConvCpltCallbackCh1(DAC_HandleTypeDef *hdac)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdac);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DAC_ConvCpltCallbackCh1 could be implemented in the user file
*/
}
/**
* @brief Conversion half DMA transfer callback in non-blocking mode for Channel1
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval None
*/
__weak void HAL_DAC_ConvHalfCpltCallbackCh1(DAC_HandleTypeDef *hdac)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdac);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DAC_ConvHalfCpltCallbackCh1 could be implemented in the user file
*/
}
/**
* @brief Error DAC callback for Channel1.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval None
*/
__weak void HAL_DAC_ErrorCallbackCh1(DAC_HandleTypeDef *hdac)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdac);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DAC_ErrorCallbackCh1 could be implemented in the user file
*/
}
/**
* @brief DMA underrun DAC callback for channel1.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval None
*/
__weak void HAL_DAC_DMAUnderrunCallbackCh1(DAC_HandleTypeDef *hdac)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdac);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DAC_DMAUnderrunCallbackCh1 could be implemented in the user file
*/
}
/**
* @}
*/
/** @defgroup DAC_Exported_Functions_Group3 Peripheral Control functions
* @brief Peripheral Control functions
*
@verbatim
==============================================================================
##### Peripheral Control functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Configure channels.
(+) Set the specified data holding register value for DAC channel.
@endverbatim
* @{
*/
/**
* @brief Returns the last data output value of the selected DAC channel.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @param Channel The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_CHANNEL_1: DAC Channel1 selected
* @arg DAC_CHANNEL_2: DAC Channel2 selected
* @retval The selected DAC channel data output value.
*/
uint32_t HAL_DAC_GetValue(const DAC_HandleTypeDef *hdac, uint32_t Channel)
{
uint32_t result = 0;
/* Check the DAC peripheral handle */
assert_param(hdac != NULL);
/* Check the parameters */
assert_param(IS_DAC_CHANNEL(Channel));
if (Channel == DAC_CHANNEL_1)
{
result = hdac->Instance->DOR1;
}
#if defined(DAC_CHANNEL2_SUPPORT)
else
{
result = hdac->Instance->DOR2;
}
#endif /* DAC_CHANNEL2_SUPPORT */
/* Returns the DAC channel data output register value */
return result;
}
/**
* @brief Configures the selected DAC channel.
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @param sConfig DAC configuration structure.
* @param Channel The selected DAC channel.
* This parameter can be one of the following values:
* @arg DAC_CHANNEL_1: DAC Channel1 selected
* @arg DAC_CHANNEL_2: DAC Channel2 selected
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DAC_ConfigChannel(DAC_HandleTypeDef *hdac,
const DAC_ChannelConfTypeDef *sConfig, uint32_t Channel)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t tmpreg1;
uint32_t tmpreg2;
/* Check the DAC peripheral handle and channel configuration struct */
if ((hdac == NULL) || (sConfig == NULL))
{
return HAL_ERROR;
}
/* Check the DAC parameters */
assert_param(IS_DAC_TRIGGER(sConfig->DAC_Trigger));
assert_param(IS_DAC_OUTPUT_BUFFER_STATE(sConfig->DAC_OutputBuffer));
assert_param(IS_DAC_CHANNEL(Channel));
/* Process locked */
__HAL_LOCK(hdac);
/* Change DAC state */
hdac->State = HAL_DAC_STATE_BUSY;
/* Get the DAC CR value */
tmpreg1 = hdac->Instance->CR;
/* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */
tmpreg1 &= ~(((uint32_t)(DAC_CR_MAMP1 | DAC_CR_WAVE1 | DAC_CR_TSEL1 | DAC_CR_TEN1 | DAC_CR_BOFF1))
<< (Channel & 0x10UL));
/* Configure for the selected DAC channel: buffer output, trigger */
/* Set TSELx and TENx bits according to DAC_Trigger value */
/* Set BOFFx bit according to DAC_OutputBuffer value */
tmpreg2 = (sConfig->DAC_Trigger | sConfig->DAC_OutputBuffer);
/* Calculate CR register value depending on DAC_Channel */
tmpreg1 |= tmpreg2 << (Channel & 0x10UL);
/* Write to DAC CR */
hdac->Instance->CR = tmpreg1;
/* Disable wave generation */
CLEAR_BIT(hdac->Instance->CR, (DAC_CR_WAVE1 << (Channel & 0x10UL)));
/* Change DAC state */
hdac->State = HAL_DAC_STATE_READY;
/* Process unlocked */
__HAL_UNLOCK(hdac);
/* Return function status */
return status;
}
/**
* @}
*/
/** @defgroup DAC_Exported_Functions_Group4 Peripheral State and Errors functions
* @brief Peripheral State and Errors functions
*
@verbatim
==============================================================================
##### Peripheral State and Errors functions #####
==============================================================================
[..]
This subsection provides functions allowing to
(+) Check the DAC state.
(+) Check the DAC Errors.
@endverbatim
* @{
*/
/**
* @brief return the DAC handle state
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval HAL state
*/
HAL_DAC_StateTypeDef HAL_DAC_GetState(const DAC_HandleTypeDef *hdac)
{
/* Return DAC handle state */
return hdac->State;
}
/**
* @brief Return the DAC error code
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
* the configuration information for the specified DAC.
* @retval DAC Error Code
*/
uint32_t HAL_DAC_GetError(const DAC_HandleTypeDef *hdac)
{
return hdac->ErrorCode;
}
/**
* @}
*/
/**
* @}
*/
/** @addtogroup DAC_Exported_Functions
* @{
*/
/** @addtogroup DAC_Exported_Functions_Group1
* @{
*/
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
/**
* @brief Register a User DAC Callback
* To be used instead of the weak (overridden) predefined callback
* @note The HAL_DAC_RegisterCallback() may be called before HAL_DAC_Init() in HAL_DAC_STATE_RESET to register
* callbacks for HAL_DAC_MSPINIT_CB_ID and HAL_DAC_MSPDEINIT_CB_ID
* @param hdac DAC handle
* @param CallbackID ID of the callback to be registered
* This parameter can be one of the following values:
* @arg @ref HAL_DAC_ERROR_INVALID_CALLBACK DAC Error Callback ID
* @arg @ref HAL_DAC_CH1_COMPLETE_CB_ID DAC CH1 Complete Callback ID
* @arg @ref HAL_DAC_CH1_HALF_COMPLETE_CB_ID DAC CH1 Half Complete Callback ID
* @arg @ref HAL_DAC_CH1_ERROR_ID DAC CH1 Error Callback ID
* @arg @ref HAL_DAC_CH1_UNDERRUN_CB_ID DAC CH1 UnderRun Callback ID
* @arg @ref HAL_DAC_CH2_COMPLETE_CB_ID DAC CH2 Complete Callback ID
* @arg @ref HAL_DAC_CH2_HALF_COMPLETE_CB_ID DAC CH2 Half Complete Callback ID
* @arg @ref HAL_DAC_CH2_ERROR_ID DAC CH2 Error Callback ID
* @arg @ref HAL_DAC_CH2_UNDERRUN_CB_ID DAC CH2 UnderRun Callback ID
* @arg @ref HAL_DAC_MSPINIT_CB_ID DAC MSP Init Callback ID
* @arg @ref HAL_DAC_MSPDEINIT_CB_ID DAC MSP DeInit Callback ID
*
* @param pCallback pointer to the Callback function
* @retval status
*/
HAL_StatusTypeDef HAL_DAC_RegisterCallback(DAC_HandleTypeDef *hdac, HAL_DAC_CallbackIDTypeDef CallbackID,
pDAC_CallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
if (pCallback == NULL)
{
/* Update the error code */
hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK;
return HAL_ERROR;
}
if (hdac->State == HAL_DAC_STATE_READY)
{
switch (CallbackID)
{
case HAL_DAC_CH1_COMPLETE_CB_ID :
hdac->ConvCpltCallbackCh1 = pCallback;
break;
case HAL_DAC_CH1_HALF_COMPLETE_CB_ID :
hdac->ConvHalfCpltCallbackCh1 = pCallback;
break;
case HAL_DAC_CH1_ERROR_ID :
hdac->ErrorCallbackCh1 = pCallback;
break;
case HAL_DAC_CH1_UNDERRUN_CB_ID :
hdac->DMAUnderrunCallbackCh1 = pCallback;
break;
#if defined(DAC_CHANNEL2_SUPPORT)
case HAL_DAC_CH2_COMPLETE_CB_ID :
hdac->ConvCpltCallbackCh2 = pCallback;
break;
case HAL_DAC_CH2_HALF_COMPLETE_CB_ID :
hdac->ConvHalfCpltCallbackCh2 = pCallback;
break;
case HAL_DAC_CH2_ERROR_ID :
hdac->ErrorCallbackCh2 = pCallback;
break;
case HAL_DAC_CH2_UNDERRUN_CB_ID :
hdac->DMAUnderrunCallbackCh2 = pCallback;
break;
#endif /* DAC_CHANNEL2_SUPPORT */
case HAL_DAC_MSPINIT_CB_ID :
hdac->MspInitCallback = pCallback;
break;
case HAL_DAC_MSPDEINIT_CB_ID :
hdac->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else if (hdac->State == HAL_DAC_STATE_RESET)
{
switch (CallbackID)
{
case HAL_DAC_MSPINIT_CB_ID :
hdac->MspInitCallback = pCallback;
break;
case HAL_DAC_MSPDEINIT_CB_ID :
hdac->MspDeInitCallback = pCallback;
break;
default :
/* Update the error code */
hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
return status;
}
/**
* @brief Unregister a User DAC Callback
* DAC Callback is redirected to the weak (overridden) predefined callback
* @note The HAL_DAC_UnRegisterCallback() may be called before HAL_DAC_Init() in HAL_DAC_STATE_RESET to un-register
* callbacks for HAL_DAC_MSPINIT_CB_ID and HAL_DAC_MSPDEINIT_CB_ID
* @param hdac DAC handle
* @param CallbackID ID of the callback to be unregistered
* This parameter can be one of the following values:
* @arg @ref HAL_DAC_CH1_COMPLETE_CB_ID DAC CH1 transfer Complete Callback ID
* @arg @ref HAL_DAC_CH1_HALF_COMPLETE_CB_ID DAC CH1 Half Complete Callback ID
* @arg @ref HAL_DAC_CH1_ERROR_ID DAC CH1 Error Callback ID
* @arg @ref HAL_DAC_CH1_UNDERRUN_CB_ID DAC CH1 UnderRun Callback ID
* @arg @ref HAL_DAC_CH2_COMPLETE_CB_ID DAC CH2 Complete Callback ID
* @arg @ref HAL_DAC_CH2_HALF_COMPLETE_CB_ID DAC CH2 Half Complete Callback ID
* @arg @ref HAL_DAC_CH2_ERROR_ID DAC CH2 Error Callback ID
* @arg @ref HAL_DAC_CH2_UNDERRUN_CB_ID DAC CH2 UnderRun Callback ID
* @arg @ref HAL_DAC_MSPINIT_CB_ID DAC MSP Init Callback ID
* @arg @ref HAL_DAC_MSPDEINIT_CB_ID DAC MSP DeInit Callback ID
* @arg @ref HAL_DAC_ALL_CB_ID DAC All callbacks
* @retval status
*/
HAL_StatusTypeDef HAL_DAC_UnRegisterCallback(DAC_HandleTypeDef *hdac, HAL_DAC_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check the DAC peripheral handle */
if (hdac == NULL)
{
return HAL_ERROR;
}
if (hdac->State == HAL_DAC_STATE_READY)
{
switch (CallbackID)
{
case HAL_DAC_CH1_COMPLETE_CB_ID :
hdac->ConvCpltCallbackCh1 = HAL_DAC_ConvCpltCallbackCh1;
break;
case HAL_DAC_CH1_HALF_COMPLETE_CB_ID :
hdac->ConvHalfCpltCallbackCh1 = HAL_DAC_ConvHalfCpltCallbackCh1;
break;
case HAL_DAC_CH1_ERROR_ID :
hdac->ErrorCallbackCh1 = HAL_DAC_ErrorCallbackCh1;
break;
case HAL_DAC_CH1_UNDERRUN_CB_ID :
hdac->DMAUnderrunCallbackCh1 = HAL_DAC_DMAUnderrunCallbackCh1;
break;
#if defined(DAC_CHANNEL2_SUPPORT)
case HAL_DAC_CH2_COMPLETE_CB_ID :
hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2;
break;
case HAL_DAC_CH2_HALF_COMPLETE_CB_ID :
hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2;
break;
case HAL_DAC_CH2_ERROR_ID :
hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2;
break;
case HAL_DAC_CH2_UNDERRUN_CB_ID :
hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2;
break;
#endif /* DAC_CHANNEL2_SUPPORT */
case HAL_DAC_MSPINIT_CB_ID :
hdac->MspInitCallback = HAL_DAC_MspInit;
break;
case HAL_DAC_MSPDEINIT_CB_ID :
hdac->MspDeInitCallback = HAL_DAC_MspDeInit;
break;
case HAL_DAC_ALL_CB_ID :
hdac->ConvCpltCallbackCh1 = HAL_DAC_ConvCpltCallbackCh1;
hdac->ConvHalfCpltCallbackCh1 = HAL_DAC_ConvHalfCpltCallbackCh1;
hdac->ErrorCallbackCh1 = HAL_DAC_ErrorCallbackCh1;
hdac->DMAUnderrunCallbackCh1 = HAL_DAC_DMAUnderrunCallbackCh1;
#if defined(DAC_CHANNEL2_SUPPORT)
hdac->ConvCpltCallbackCh2 = HAL_DACEx_ConvCpltCallbackCh2;
hdac->ConvHalfCpltCallbackCh2 = HAL_DACEx_ConvHalfCpltCallbackCh2;
hdac->ErrorCallbackCh2 = HAL_DACEx_ErrorCallbackCh2;
hdac->DMAUnderrunCallbackCh2 = HAL_DACEx_DMAUnderrunCallbackCh2;
#endif /* DAC_CHANNEL2_SUPPORT */
hdac->MspInitCallback = HAL_DAC_MspInit;
hdac->MspDeInitCallback = HAL_DAC_MspDeInit;
break;
default :
/* Update the error code */
hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else if (hdac->State == HAL_DAC_STATE_RESET)
{
switch (CallbackID)
{
case HAL_DAC_MSPINIT_CB_ID :
hdac->MspInitCallback = HAL_DAC_MspInit;
break;
case HAL_DAC_MSPDEINIT_CB_ID :
hdac->MspDeInitCallback = HAL_DAC_MspDeInit;
break;
default :
/* Update the error code */
hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* Update the error code */
hdac->ErrorCode |= HAL_DAC_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
return status;
}
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
/**
* @}
*/
/**
* @}
*/
/** @addtogroup DAC_Private_Functions
* @{
*/
/**
* @brief DMA conversion complete callback.
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA module.
* @retval None
*/
void DAC_DMAConvCpltCh1(DMA_HandleTypeDef *hdma)
{
DAC_HandleTypeDef *hdac = (DAC_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
hdac->ConvCpltCallbackCh1(hdac);
#else
HAL_DAC_ConvCpltCallbackCh1(hdac);
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
hdac->State = HAL_DAC_STATE_READY;
}
/**
* @brief DMA half transfer complete callback.
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA module.
* @retval None
*/
void DAC_DMAHalfConvCpltCh1(DMA_HandleTypeDef *hdma)
{
DAC_HandleTypeDef *hdac = (DAC_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
/* Conversion complete callback */
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
hdac->ConvHalfCpltCallbackCh1(hdac);
#else
HAL_DAC_ConvHalfCpltCallbackCh1(hdac);
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
}
/**
* @brief DMA error callback
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA module.
* @retval None
*/
void DAC_DMAErrorCh1(DMA_HandleTypeDef *hdma)
{
DAC_HandleTypeDef *hdac = (DAC_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent;
/* Set DAC error code to DMA error */
hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
#if (USE_HAL_DAC_REGISTER_CALLBACKS == 1)
hdac->ErrorCallbackCh1(hdac);
#else
HAL_DAC_ErrorCallbackCh1(hdac);
#endif /* USE_HAL_DAC_REGISTER_CALLBACKS */
hdac->State = HAL_DAC_STATE_READY;
}
/**
* @}
*/
/**
* @}
*/
#endif /* DAC */
#endif /* HAL_DAC_MODULE_ENABLED */
/**
* @}
*/
Details ![]()
Show: from Types: Columns: ![]( "Show Project Names")
![]( "Show Locations")
![]( "Show Referring Symbols")
![]( "Show Scope")
This file uses the notable symbols shown below. Click anywhere in the file to view more details.