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
|
/**
******************************************************************************
* @file stm32h7xx_ll_dma.c
* @author MCD Application Team
* @brief DMA LL module driver.
******************************************************************************
* @attention
*
* Copyright (c) 2017 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.
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_ll_dma.h"
#include "stm32h7xx_ll_bus.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32H7xx_LL_Driver
* @{
*/
#if defined (DMA1) || defined (DMA2)
/** @addtogroup DMA_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup DMA_LL_Private_Macros
* @{
*/
#define IS_LL_DMA_DIRECTION(__VALUE__) (((__VALUE__) == LL_DMA_DIRECTION_PERIPH_TO_MEMORY) || \
((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_PERIPH) || \
((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_MEMORY))
#define IS_LL_DMA_MODE(__VALUE__) (((__VALUE__) == LL_DMA_MODE_NORMAL) || \
((__VALUE__) == LL_DMA_MODE_CIRCULAR) || \
((__VALUE__) == LL_DMA_MODE_PFCTRL))
#define IS_LL_DMA_PERIPHINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_PERIPH_INCREMENT) || \
((__VALUE__) == LL_DMA_PERIPH_NOINCREMENT))
#define IS_LL_DMA_MEMORYINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_MEMORY_INCREMENT) || \
((__VALUE__) == LL_DMA_MEMORY_NOINCREMENT))
#define IS_LL_DMA_PERIPHDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_PDATAALIGN_BYTE) || \
((__VALUE__) == LL_DMA_PDATAALIGN_HALFWORD) || \
((__VALUE__) == LL_DMA_PDATAALIGN_WORD))
#define IS_LL_DMA_MEMORYDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_MDATAALIGN_BYTE) || \
((__VALUE__) == LL_DMA_MDATAALIGN_HALFWORD) || \
((__VALUE__) == LL_DMA_MDATAALIGN_WORD))
#define IS_LL_DMA_NBDATA(__VALUE__) ((__VALUE__) <= 0x0000FFFFU)
#if defined(TIM24)
#define IS_LL_DMA_REQUEST(REQUEST) (((REQUEST) <= LL_DMAMUX1_REQ_TIM24_TRIG))
#elif defined(ADC3)
#define IS_LL_DMA_REQUEST(REQUEST) (((REQUEST) <= LL_DMAMUX1_REQ_ADC3))
#else
#define IS_LL_DMA_REQUEST(REQUEST) (((REQUEST) <= LL_DMAMUX1_REQ_USART10_TX))
#endif /* TIM24 */
#define IS_LL_DMA_PRIORITY(__VALUE__) (((__VALUE__) == LL_DMA_PRIORITY_LOW) || \
((__VALUE__) == LL_DMA_PRIORITY_MEDIUM) || \
((__VALUE__) == LL_DMA_PRIORITY_HIGH) || \
((__VALUE__) == LL_DMA_PRIORITY_VERYHIGH))
#define IS_LL_DMA_ALL_STREAM_INSTANCE(INSTANCE, STREAM) ((((INSTANCE) == DMA1) && \
(((STREAM) == LL_DMA_STREAM_0) || \
((STREAM) == LL_DMA_STREAM_1) || \
((STREAM) == LL_DMA_STREAM_2) || \
((STREAM) == LL_DMA_STREAM_3) || \
((STREAM) == LL_DMA_STREAM_4) || \
((STREAM) == LL_DMA_STREAM_5) || \
((STREAM) == LL_DMA_STREAM_6) || \
((STREAM) == LL_DMA_STREAM_7) || \
((STREAM) == LL_DMA_STREAM_ALL))) || \
(((INSTANCE) == DMA2) && \
(((STREAM) == LL_DMA_STREAM_0) || \
((STREAM) == LL_DMA_STREAM_1) || \
((STREAM) == LL_DMA_STREAM_2) || \
((STREAM) == LL_DMA_STREAM_3) || \
((STREAM) == LL_DMA_STREAM_4) || \
((STREAM) == LL_DMA_STREAM_5) || \
((STREAM) == LL_DMA_STREAM_6) || \
((STREAM) == LL_DMA_STREAM_7) || \
((STREAM) == LL_DMA_STREAM_ALL))))
#define IS_LL_DMA_FIFO_MODE_STATE(STATE) (((STATE) == LL_DMA_FIFOMODE_DISABLE ) || \
((STATE) == LL_DMA_FIFOMODE_ENABLE))
#define IS_LL_DMA_FIFO_THRESHOLD(THRESHOLD) (((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_1_4) || \
((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_1_2) || \
((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_3_4) || \
((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_FULL))
#define IS_LL_DMA_MEMORY_BURST(BURST) (((BURST) == LL_DMA_MBURST_SINGLE) || \
((BURST) == LL_DMA_MBURST_INC4) || \
((BURST) == LL_DMA_MBURST_INC8) || \
((BURST) == LL_DMA_MBURST_INC16))
#define IS_LL_DMA_PERIPHERAL_BURST(BURST) (((BURST) == LL_DMA_PBURST_SINGLE) || \
((BURST) == LL_DMA_PBURST_INC4) || \
((BURST) == LL_DMA_PBURST_INC8) || \
((BURST) == LL_DMA_PBURST_INC16))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup DMA_LL_Exported_Functions
* @{
*/
/** @addtogroup DMA_LL_EF_Init
* @{
*/
/**
* @brief De-initialize the DMA registers to their default reset values.
* @param DMAx DMAx Instance
* @param Stream This parameter can be one of the following values:
* @arg @ref LL_DMA_STREAM_0
* @arg @ref LL_DMA_STREAM_1
* @arg @ref LL_DMA_STREAM_2
* @arg @ref LL_DMA_STREAM_3
* @arg @ref LL_DMA_STREAM_4
* @arg @ref LL_DMA_STREAM_5
* @arg @ref LL_DMA_STREAM_6
* @arg @ref LL_DMA_STREAM_7
* @arg @ref LL_DMA_STREAM_ALL
* @retval An ErrorStatus enumeration value:
* - SUCCESS: DMA registers are de-initialized
* - ERROR: DMA registers are not de-initialized
*/
uint32_t LL_DMA_DeInit(DMA_TypeDef *DMAx, uint32_t Stream)
{
DMA_Stream_TypeDef *tmp;
ErrorStatus status = SUCCESS;
/* Check the DMA Instance DMAx and Stream parameters */
assert_param(IS_LL_DMA_ALL_STREAM_INSTANCE(DMAx, Stream));
if (Stream == LL_DMA_STREAM_ALL)
{
if (DMAx == DMA1)
{
/* Force reset of DMA clock */
LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA1);
/* Release reset of DMA clock */
LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA1);
}
else if (DMAx == DMA2)
{
/* Force reset of DMA clock */
LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA2);
/* Release reset of DMA clock */
LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA2);
}
else
{
status = ERROR;
}
}
else
{
/* Disable the selected Stream */
LL_DMA_DisableStream(DMAx, Stream);
/* Get the DMA Stream Instance */
tmp = (DMA_Stream_TypeDef *)(__LL_DMA_GET_STREAM_INSTANCE(DMAx, Stream));
/* Reset DMAx_Streamy configuration register */
LL_DMA_WriteReg(tmp, CR, 0U);
/* Reset DMAx_Streamy remaining bytes register */
LL_DMA_WriteReg(tmp, NDTR, 0U);
/* Reset DMAx_Streamy peripheral address register */
LL_DMA_WriteReg(tmp, PAR, 0U);
/* Reset DMAx_Streamy memory address register */
LL_DMA_WriteReg(tmp, M0AR, 0U);
/* Reset DMAx_Streamy memory address register */
LL_DMA_WriteReg(tmp, M1AR, 0U);
/* Reset DMAx_Streamy FIFO control register */
LL_DMA_WriteReg(tmp, FCR, 0x00000021U);
/* Reset Channel register field for DMAx Stream */
LL_DMA_SetPeriphRequest(DMAx, Stream, LL_DMAMUX1_REQ_MEM2MEM);
if (Stream == LL_DMA_STREAM_0)
{
/* Reset the Stream0 pending flags */
DMAx->LIFCR = 0x0000003FU;
}
else if (Stream == LL_DMA_STREAM_1)
{
/* Reset the Stream1 pending flags */
DMAx->LIFCR = 0x00000F40U;
}
else if (Stream == LL_DMA_STREAM_2)
{
/* Reset the Stream2 pending flags */
DMAx->LIFCR = 0x003F0000U;
}
else if (Stream == LL_DMA_STREAM_3)
{
/* Reset the Stream3 pending flags */
DMAx->LIFCR = 0x0F400000U;
}
else if (Stream == LL_DMA_STREAM_4)
{
/* Reset the Stream4 pending flags */
DMAx->HIFCR = 0x0000003FU;
}
else if (Stream == LL_DMA_STREAM_5)
{
/* Reset the Stream5 pending flags */
DMAx->HIFCR = 0x00000F40U;
}
else if (Stream == LL_DMA_STREAM_6)
{
/* Reset the Stream6 pending flags */
DMAx->HIFCR = 0x003F0000U;
}
else if (Stream == LL_DMA_STREAM_7)
{
/* Reset the Stream7 pending flags */
DMAx->HIFCR = 0x0F400000U;
}
else
{
status = ERROR;
}
}
return (uint32_t)status;
}
/**
* @brief Initialize the DMA registers according to the specified parameters in DMA_InitStruct.
* @note To convert DMAx_Streamy Instance to DMAx Instance and Streamy, use helper macros :
* @arg @ref __LL_DMA_GET_INSTANCE
* @arg @ref __LL_DMA_GET_STREAM
* @param DMAx DMAx Instance
* @param Stream This parameter can be one of the following values:
* @arg @ref LL_DMA_STREAM_0
* @arg @ref LL_DMA_STREAM_1
* @arg @ref LL_DMA_STREAM_2
* @arg @ref LL_DMA_STREAM_3
* @arg @ref LL_DMA_STREAM_4
* @arg @ref LL_DMA_STREAM_5
* @arg @ref LL_DMA_STREAM_6
* @arg @ref LL_DMA_STREAM_7
* @param DMA_InitStruct pointer to a @ref LL_DMA_InitTypeDef structure.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: DMA registers are initialized
* - ERROR: Not applicable
*/
uint32_t LL_DMA_Init(DMA_TypeDef *DMAx, uint32_t Stream, LL_DMA_InitTypeDef *DMA_InitStruct)
{
/* Check the DMA Instance DMAx and Stream parameters */
assert_param(IS_LL_DMA_ALL_STREAM_INSTANCE(DMAx, Stream));
/* Check the DMA parameters from DMA_InitStruct */
assert_param(IS_LL_DMA_DIRECTION(DMA_InitStruct->Direction));
assert_param(IS_LL_DMA_MODE(DMA_InitStruct->Mode));
assert_param(IS_LL_DMA_PERIPHINCMODE(DMA_InitStruct->PeriphOrM2MSrcIncMode));
assert_param(IS_LL_DMA_MEMORYINCMODE(DMA_InitStruct->MemoryOrM2MDstIncMode));
assert_param(IS_LL_DMA_PERIPHDATASIZE(DMA_InitStruct->PeriphOrM2MSrcDataSize));
assert_param(IS_LL_DMA_MEMORYDATASIZE(DMA_InitStruct->MemoryOrM2MDstDataSize));
assert_param(IS_LL_DMA_NBDATA(DMA_InitStruct->NbData));
assert_param(IS_LL_DMA_REQUEST(DMA_InitStruct->PeriphRequest));
assert_param(IS_LL_DMA_PRIORITY(DMA_InitStruct->Priority));
assert_param(IS_LL_DMA_FIFO_MODE_STATE(DMA_InitStruct->FIFOMode));
/* Check the memory burst, peripheral burst and FIFO threshold parameters only
when FIFO mode is enabled */
if (DMA_InitStruct->FIFOMode != LL_DMA_FIFOMODE_DISABLE)
{
assert_param(IS_LL_DMA_FIFO_THRESHOLD(DMA_InitStruct->FIFOThreshold));
assert_param(IS_LL_DMA_MEMORY_BURST(DMA_InitStruct->MemBurst));
assert_param(IS_LL_DMA_PERIPHERAL_BURST(DMA_InitStruct->PeriphBurst));
}
/*---------------------------- DMAx SxCR Configuration ------------------------
* Configure DMAx_Streamy: data transfer direction, data transfer mode,
* peripheral and memory increment mode,
* data size alignment and priority level with parameters :
* - Direction: DMA_SxCR_DIR[1:0] bits
* - Mode: DMA_SxCR_CIRC bit
* - PeriphOrM2MSrcIncMode: DMA_SxCR_PINC bit
* - MemoryOrM2MDstIncMode: DMA_SxCR_MINC bit
* - PeriphOrM2MSrcDataSize: DMA_SxCR_PSIZE[1:0] bits
* - MemoryOrM2MDstDataSize: DMA_SxCR_MSIZE[1:0] bits
* - Priority: DMA_SxCR_PL[1:0] bits
*/
LL_DMA_ConfigTransfer(DMAx, Stream, DMA_InitStruct->Direction | \
DMA_InitStruct->Mode | \
DMA_InitStruct->PeriphOrM2MSrcIncMode | \
DMA_InitStruct->MemoryOrM2MDstIncMode | \
DMA_InitStruct->PeriphOrM2MSrcDataSize | \
DMA_InitStruct->MemoryOrM2MDstDataSize | \
DMA_InitStruct->Priority
);
if (DMA_InitStruct->FIFOMode != LL_DMA_FIFOMODE_DISABLE)
{
/*---------------------------- DMAx SxFCR Configuration ------------------------
* Configure DMAx_Streamy: fifo mode and fifo threshold with parameters :
* - FIFOMode: DMA_SxFCR_DMDIS bit
* - FIFOThreshold: DMA_SxFCR_FTH[1:0] bits
*/
LL_DMA_ConfigFifo(DMAx, Stream, DMA_InitStruct->FIFOMode, DMA_InitStruct->FIFOThreshold);
/*---------------------------- DMAx SxCR Configuration --------------------------
* Configure DMAx_Streamy: memory burst transfer with parameters :
* - MemBurst: DMA_SxCR_MBURST[1:0] bits
*/
LL_DMA_SetMemoryBurstxfer(DMAx, Stream, DMA_InitStruct->MemBurst);
/*---------------------------- DMAx SxCR Configuration --------------------------
* Configure DMAx_Streamy: peripheral burst transfer with parameters :
* - PeriphBurst: DMA_SxCR_PBURST[1:0] bits
*/
LL_DMA_SetPeriphBurstxfer(DMAx, Stream, DMA_InitStruct->PeriphBurst);
}
/*-------------------------- DMAx SxM0AR Configuration --------------------------
* Configure the memory or destination base address with parameter :
* - MemoryOrM2MDstAddress: DMA_SxM0AR_M0A[31:0] bits
*/
LL_DMA_SetMemoryAddress(DMAx, Stream, DMA_InitStruct->MemoryOrM2MDstAddress);
/*-------------------------- DMAx SxPAR Configuration ---------------------------
* Configure the peripheral or source base address with parameter :
* - PeriphOrM2MSrcAddress: DMA_SxPAR_PA[31:0] bits
*/
LL_DMA_SetPeriphAddress(DMAx, Stream, DMA_InitStruct->PeriphOrM2MSrcAddress);
/*--------------------------- DMAx SxNDTR Configuration -------------------------
* Configure the peripheral base address with parameter :
* - NbData: DMA_SxNDT[15:0] bits
*/
LL_DMA_SetDataLength(DMAx, Stream, DMA_InitStruct->NbData);
/*--------------------------- DMA SxCR_CHSEL Configuration ----------------------
* Configure the peripheral base address with parameter :
* - PeriphRequest: DMA_SxCR_CHSEL[3:0] bits
*/
LL_DMA_SetPeriphRequest(DMAx, Stream, DMA_InitStruct->PeriphRequest);
return (uint32_t)SUCCESS;
}
/**
* @brief Set each @ref LL_DMA_InitTypeDef field to default value.
* @param DMA_InitStruct Pointer to a @ref LL_DMA_InitTypeDef structure.
* @retval None
*/
void LL_DMA_StructInit(LL_DMA_InitTypeDef *DMA_InitStruct)
{
/* Set DMA_InitStruct fields to default values */
DMA_InitStruct->PeriphOrM2MSrcAddress = 0x00000000U;
DMA_InitStruct->MemoryOrM2MDstAddress = 0x00000000U;
DMA_InitStruct->Direction = LL_DMA_DIRECTION_PERIPH_TO_MEMORY;
DMA_InitStruct->Mode = LL_DMA_MODE_NORMAL;
DMA_InitStruct->PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT;
DMA_InitStruct->MemoryOrM2MDstIncMode = LL_DMA_MEMORY_NOINCREMENT;
DMA_InitStruct->PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_BYTE;
DMA_InitStruct->MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_BYTE;
DMA_InitStruct->NbData = 0x00000000U;
DMA_InitStruct->PeriphRequest = LL_DMAMUX1_REQ_MEM2MEM;
DMA_InitStruct->Priority = LL_DMA_PRIORITY_LOW;
DMA_InitStruct->FIFOMode = LL_DMA_FIFOMODE_DISABLE;
DMA_InitStruct->FIFOThreshold = LL_DMA_FIFOTHRESHOLD_1_4;
DMA_InitStruct->MemBurst = LL_DMA_MBURST_SINGLE;
DMA_InitStruct->PeriphBurst = LL_DMA_PBURST_SINGLE;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* DMA1 || DMA2 */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
|
