我是靠谱客的博主 醉熏裙子，这篇文章主要介绍【STM32】STM32H750VBT6 CubeMX USBFS-UVC设备实现,以及移植问题开发环境CubeMX配置，现在分享给大家，希望可以做个参考。
开发环境
ARM-MDK 5
STM32H750VBT6核心板
CubeMX配置
1. 时钟及内存
这里没有开启DCache，因为和HAL库这里还有BUG。如果要开启DCache那么就不要Enable internal IP DMA。我看有文章说全速模式就是不能开启DMA的，但是我看不太对。没有DCache时确实能使用DMA，调试看过DMA确实打开了。我觉得有可能和LWIP一样，需要配置MPU。
修改：
参考ST社区的帖子知道：
DTCM, which is not accessible by USB.内存配置问题，You can change the DTCM memory with another one which is accessible by USB.但是文章最后说DCache数据一致性的问题还是没有解决，只能关闭DCache。
internal IP DMA可以在下图位置使能。
2.配置USB
选择CDC设备即可，待会会修改：
3.生成代码
4.修改代码
usb_uvc代码：
复制代码
1
2git clone https://github.com/MisakaMikoto128/STM32H750_UVC.git
添加usb_uvc下的Inc到包含路径，添加usbd_uvc.c和usbd_uvc_if.c到项目：
- 第一步：
- 第二步：修改usb_device.c如下(已删减)：
复制代码
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/* Includes ------------------------------------------------------------------*/ #include "usb_device.h" #include "usbd_core.h" #include "usbd_desc.h" /* USER CODE BEGIN Includes */ #include "usbd_uvc.h" #include "usbd_uvc_if.h" /* USER CODE END Includes */ void MX_USB_DEVICE_Init(void) { /* Init Device Library, add supported class and start the library. */ if (USBD_Init(&hUsbDeviceFS, &FS_Desc, DEVICE_FS) != USBD_OK) { Error_Handler(); } if (USBD_RegisterClass(&hUsbDeviceFS, &USBD_UVC) != USBD_OK) { Error_Handler(); } if (USBD_UVC_RegisterCamera(&hUsbDeviceFS, &USBD_UVC_Camera) != USBD_OK) { Error_Handler(); } if (USBD_Start(&hUsbDeviceFS) != USBD_OK) { Error_Handler(); } /* USER CODE BEGIN USB_DEVICE_Init_PostTreatment */ HAL_PWREx_EnableUSBVoltageDetector(); /* USER CODE END USB_DEVICE_Init_PostTreatment */ }
- 第三步：这个步骤很重要，因为HAL库的USB库有些BUG，我拿来一以前的版本反而能够使用，用beyondCompare比较和Keil调试了一早上才找到问题所在(不太熟悉STM32的USB)。直接替换
HAL_PCD_IRQHandler为这里的代码：代码我贴在后面了，有点长。
效果图下图：
生成图片数组的工具看这篇文章：
【数字图像处理】YUV格式转化为YUY2
：
HAL_PCD_IRQHandler的代码
复制代码
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/** * @brief Handles PCD interrupt request. * @param hpcd PCD handle * @retval HAL status */ void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd) { USB_OTG_GlobalTypeDef *USBx = hpcd->Instance; uint32_t USBx_BASE = (uint32_t)USBx; uint32_t i, ep_intr, epint, epnum; uint32_t fifoemptymsk, temp; USB_OTG_EPTypeDef *ep; /* ensure that we are in device mode */ if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE) { /* avoid spurious interrupt */ if (__HAL_PCD_IS_INVALID_INTERRUPT(hpcd)) { return; } if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS)) { /* incorrect mode, acknowledge the interrupt */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS); } /* Handle RxQLevel Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_RXFLVL)) { USB_MASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL); temp = USBx->GRXSTSP; ep = &hpcd->OUT_ep[temp & USB_OTG_GRXSTSP_EPNUM]; if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_DATA_UPDT) { if ((temp & USB_OTG_GRXSTSP_BCNT) != 0U) { (void)USB_ReadPacket(USBx, ep->xfer_buff, (uint16_t)((temp & USB_OTG_GRXSTSP_BCNT) >> 4)); ep->xfer_buff += (temp & USB_OTG_GRXSTSP_BCNT) >> 4; ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4; } } else if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_SETUP_UPDT) { (void)USB_ReadPacket(USBx, (uint8_t *)hpcd->Setup, 8U); ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4; } else { /* ... */ } USB_UNMASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL); } if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT)) { epnum = 0U; /* Read in the device interrupt bits */ ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance); while (ep_intr != 0U) { if ((ep_intr & 0x1U) != 0U) { epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, (uint8_t)epnum); if ((epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC); (void)PCD_EP_OutXfrComplete_int(hpcd, epnum); } if ((epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP); /* Class B setup phase done for previous decoded setup */ (void)PCD_EP_OutSetupPacket_int(hpcd, epnum); } if ((epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS); } /* Clear OUT Endpoint disable interrupt */ if ((epint & USB_OTG_DOEPINT_EPDISD) == USB_OTG_DOEPINT_EPDISD) { if ((USBx->GINTSTS & USB_OTG_GINTSTS_BOUTNAKEFF) == USB_OTG_GINTSTS_BOUTNAKEFF) { USBx_DEVICE->DCTL |= USB_OTG_DCTL_CGONAK; } ep = &hpcd->OUT_ep[epnum]; if (ep->is_iso_incomplete == 1U) { ep->is_iso_incomplete = 0U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_EPDISD); } /* Clear Status Phase Received interrupt */ if ((epint & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR); } /* Clear OUT NAK interrupt */ if ((epint & USB_OTG_DOEPINT_NAK) == USB_OTG_DOEPINT_NAK) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_NAK); } } epnum++; ep_intr >>= 1U; } } if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT)) { /* Read in the device interrupt bits */ ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance); epnum = 0U; while (ep_intr != 0U) { if ((ep_intr & 0x1U) != 0U) /* In ITR */ { epint = USB_ReadDevInEPInterrupt(hpcd->Instance, (uint8_t)epnum); if ((epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC) { fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK)); USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk; CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC); if (hpcd->Init.dma_enable == 1U) { hpcd->IN_ep[epnum].xfer_buff += hpcd->IN_ep[epnum].maxpacket; /* this is ZLP, so prepare EP0 for next setup */ if ((epnum == 0U) && (hpcd->IN_ep[epnum].xfer_len == 0U)) { /* prepare to rx more setup packets */ (void)USB_EP0_OutStart(hpcd->Instance, 1U, (uint8_t *)hpcd->Setup); } } #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->DataInStageCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_DataInStageCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } if ((epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC) { CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC); } if ((epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE) { CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE); } if ((epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE) { CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE); } if ((epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD) { (void)USB_FlushTxFifo(USBx, epnum); ep = &hpcd->IN_ep[epnum]; if (ep->is_iso_incomplete == 1U) { ep->is_iso_incomplete = 0U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ISOINIncompleteCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_ISOINIncompleteCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD); } if ((epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE) { (void)PCD_WriteEmptyTxFifo(hpcd, epnum); } } epnum++; ep_intr >>= 1U; } } /* Handle Resume Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT)) { /* Clear the Remote Wake-up Signaling */ USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG; if (hpcd->LPM_State == LPM_L1) { hpcd->LPM_State = LPM_L0; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->LPMCallback(hpcd, PCD_LPM_L0_ACTIVE); #else HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L0_ACTIVE); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } else { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ResumeCallback(hpcd); #else HAL_PCD_ResumeCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT); } /* Handle Suspend Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP)) { if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->SuspendCallback(hpcd); #else HAL_PCD_SuspendCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP); } /* Handle LPM Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT)) { __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT); if (hpcd->LPM_State == LPM_L0) { hpcd->LPM_State = LPM_L1; hpcd->BESL = (hpcd->Instance->GLPMCFG & USB_OTG_GLPMCFG_BESL) >> 2U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->LPMCallback(hpcd, PCD_LPM_L1_ACTIVE); #else HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L1_ACTIVE); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } else { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->SuspendCallback(hpcd); #else HAL_PCD_SuspendCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } } /* Handle Reset Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBRST)) { USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG; (void)USB_FlushTxFifo(hpcd->Instance, 0x10U); for (i = 0U; i < hpcd->Init.dev_endpoints; i++) { USBx_INEP(i)->DIEPINT = 0xFB7FU; USBx_INEP(i)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL; USBx_INEP(i)->DIEPCTL |= USB_OTG_DIEPCTL_SNAK; USBx_OUTEP(i)->DOEPINT = 0xFB7FU; USBx_OUTEP(i)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL; USBx_OUTEP(i)->DOEPCTL |= USB_OTG_DOEPCTL_SNAK; } USBx_DEVICE->DAINTMSK |= 0x10001U; if (hpcd->Init.use_dedicated_ep1 != 0U) { USBx_DEVICE->DOUTEP1MSK |= USB_OTG_DOEPMSK_STUPM | USB_OTG_DOEPMSK_XFRCM | USB_OTG_DOEPMSK_EPDM; USBx_DEVICE->DINEP1MSK |= USB_OTG_DIEPMSK_TOM | USB_OTG_DIEPMSK_XFRCM | USB_OTG_DIEPMSK_EPDM; } else { USBx_DEVICE->DOEPMSK |= USB_OTG_DOEPMSK_STUPM | USB_OTG_DOEPMSK_XFRCM | USB_OTG_DOEPMSK_EPDM | USB_OTG_DOEPMSK_OTEPSPRM | USB_OTG_DOEPMSK_NAKM; USBx_DEVICE->DIEPMSK |= USB_OTG_DIEPMSK_TOM | USB_OTG_DIEPMSK_XFRCM | USB_OTG_DIEPMSK_EPDM; } /* Set Default Address to 0 */ USBx_DEVICE->DCFG &= ~USB_OTG_DCFG_DAD; /* setup EP0 to receive SETUP packets */ (void)USB_EP0_OutStart(hpcd->Instance, (uint8_t)hpcd->Init.dma_enable, (uint8_t *)hpcd->Setup); __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBRST); } /* Handle Enumeration done Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE)) { (void)USB_ActivateSetup(hpcd->Instance); hpcd->Init.speed = USB_GetDevSpeed(hpcd->Instance); /* Set USB Turnaround time */ (void)USB_SetTurnaroundTime(hpcd->Instance, HAL_RCC_GetHCLKFreq(), (uint8_t)hpcd->Init.speed); #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ResetCallback(hpcd); #else HAL_PCD_ResetCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE); } /* Handle SOF Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SOF)) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->SOFCallback(hpcd); #else HAL_PCD_SOFCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SOF); } /* Handle Global OUT NAK effective Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_BOUTNAKEFF)) { USBx->GINTMSK &= ~USB_OTG_GINTMSK_GONAKEFFM; for (epnum = 1U; epnum < hpcd->Init.dev_endpoints; epnum++) { if (hpcd->OUT_ep[epnum].is_iso_incomplete == 1U) { /* Abort current transaction and disable the EP */ (void)HAL_PCD_EP_Abort(hpcd, (uint8_t)epnum); } } } /* Handle Incomplete ISO IN Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR)) { /* Keep application checking the corresponding Iso IN endpoint causing the incomplete Interrupt */ epnum = 0U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ISOINIncompleteCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_ISOINIncompleteCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR); } /* Handle Incomplete ISO OUT Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT)) { /* Keep application checking the corresponding Iso OUT endpoint causing the incomplete Interrupt */ epnum = 0U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT); } /* Handle Connection event Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT)) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ConnectCallback(hpcd); #else HAL_PCD_ConnectCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT); } /* Handle Disconnection event Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OTGINT)) { temp = hpcd->Instance->GOTGINT; if ((temp & USB_OTG_GOTGINT_SEDET) == USB_OTG_GOTGINT_SEDET) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->DisconnectCallback(hpcd); #else HAL_PCD_DisconnectCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } hpcd->Instance->GOTGINT |= temp; } } } #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
我参考的HAL_PCD_IRQHandler代码：
复制代码
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/** * @brief Handles PCD interrupt request. * @param hpcd PCD handle * @retval HAL status */ void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd) { USB_OTG_GlobalTypeDef *USBx = hpcd->Instance; uint32_t USBx_BASE = (uint32_t)USBx; uint32_t i, ep_intr, epint, epnum; uint32_t fifoemptymsk, temp; USB_OTG_EPTypeDef *ep; /* ensure that we are in device mode */ if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE) { /* avoid spurious interrupt */ if (__HAL_PCD_IS_INVALID_INTERRUPT(hpcd)) { return; } if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS)) { /* incorrect mode, acknowledge the interrupt */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS); } /* Handle RxQLevel Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_RXFLVL)) { USB_MASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL); temp = USBx->GRXSTSP; ep = &hpcd->OUT_ep[temp & USB_OTG_GRXSTSP_EPNUM]; if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_DATA_UPDT) { if ((temp & USB_OTG_GRXSTSP_BCNT) != 0U) { (void)USB_ReadPacket(USBx, ep->xfer_buff, (uint16_t)((temp & USB_OTG_GRXSTSP_BCNT) >> 4)); ep->xfer_buff += (temp & USB_OTG_GRXSTSP_BCNT) >> 4; ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4; } } else if (((temp & USB_OTG_GRXSTSP_PKTSTS) >> 17) == STS_SETUP_UPDT) { (void)USB_ReadPacket(USBx, (uint8_t *)hpcd->Setup, 8U); ep->xfer_count += (temp & USB_OTG_GRXSTSP_BCNT) >> 4; } else { /* ... */ } USB_UNMASK_INTERRUPT(hpcd->Instance, USB_OTG_GINTSTS_RXFLVL); } if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT)) { epnum = 0U; /* Read in the device interrupt bits */ ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance); while (ep_intr != 0U) { if ((ep_intr & 0x1U) != 0U) { epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, (uint8_t)epnum); if ((epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC); (void)PCD_EP_OutXfrComplete_int(hpcd, epnum); } if ((epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP); /* Class B setup phase done for previous decoded setup */ (void)PCD_EP_OutSetupPacket_int(hpcd, epnum); } if ((epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS); } /* Clear Status Phase Received interrupt */ if ((epint & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR); } /* Clear OUT NAK interrupt */ if ((epint & USB_OTG_DOEPINT_NAK) == USB_OTG_DOEPINT_NAK) { CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_NAK); } } epnum++; ep_intr >>= 1U; } } if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT)) { /* Read in the device interrupt bits */ ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance); epnum = 0U; while (ep_intr != 0U) { if ((ep_intr & 0x1U) != 0U) /* In ITR */ { epint = USB_ReadDevInEPInterrupt(hpcd->Instance, (uint8_t)epnum); if ((epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC) { fifoemptymsk = (uint32_t)(0x1UL << (epnum & EP_ADDR_MSK)); USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk; CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC); if (hpcd->Init.dma_enable == 1U) { hpcd->IN_ep[epnum].xfer_buff += hpcd->IN_ep[epnum].maxpacket; /* this is ZLP, so prepare EP0 for next setup */ if ((epnum == 0U) && (hpcd->IN_ep[epnum].xfer_len == 0U)) { /* prepare to rx more setup packets */ (void)USB_EP0_OutStart(hpcd->Instance, 1U, (uint8_t *)hpcd->Setup); } } #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->DataInStageCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_DataInStageCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } if ((epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC) { CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC); } if ((epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE) { CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE); } if ((epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE) { CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE); } if ((epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD) { CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD); } if ((epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE) { (void)PCD_WriteEmptyTxFifo(hpcd, epnum); } } epnum++; ep_intr >>= 1U; } } /* Handle Resume Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT)) { /* Clear the Remote Wake-up Signaling */ USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG; if (hpcd->LPM_State == LPM_L1) { hpcd->LPM_State = LPM_L0; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->LPMCallback(hpcd, PCD_LPM_L0_ACTIVE); #else HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L0_ACTIVE); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } else { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ResumeCallback(hpcd); #else HAL_PCD_ResumeCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT); } /* Handle Suspend Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP)) { if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->SuspendCallback(hpcd); #else HAL_PCD_SuspendCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP); } /* Handle LPM Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT)) { __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT); if (hpcd->LPM_State == LPM_L0) { hpcd->LPM_State = LPM_L1; hpcd->BESL = (hpcd->Instance->GLPMCFG & USB_OTG_GLPMCFG_BESL) >> 2U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->LPMCallback(hpcd, PCD_LPM_L1_ACTIVE); #else HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L1_ACTIVE); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } else { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->SuspendCallback(hpcd); #else HAL_PCD_SuspendCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } } /* Handle Reset Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBRST)) { USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG; (void)USB_FlushTxFifo(hpcd->Instance, 0x10U); for (i = 0U; i < hpcd->Init.dev_endpoints; i++) { USBx_INEP(i)->DIEPINT = 0xFB7FU; USBx_INEP(i)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL; USBx_INEP(i)->DIEPCTL |= USB_OTG_DIEPCTL_SNAK; USBx_OUTEP(i)->DOEPINT = 0xFB7FU; USBx_OUTEP(i)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL; USBx_OUTEP(i)->DOEPCTL |= USB_OTG_DOEPCTL_SNAK; } USBx_DEVICE->DAINTMSK |= 0x10001U; if (hpcd->Init.use_dedicated_ep1 != 0U) { USBx_DEVICE->DOUTEP1MSK |= USB_OTG_DOEPMSK_STUPM | USB_OTG_DOEPMSK_XFRCM | USB_OTG_DOEPMSK_EPDM; USBx_DEVICE->DINEP1MSK |= USB_OTG_DIEPMSK_TOM | USB_OTG_DIEPMSK_XFRCM | USB_OTG_DIEPMSK_EPDM; } else { USBx_DEVICE->DOEPMSK |= USB_OTG_DOEPMSK_STUPM | USB_OTG_DOEPMSK_XFRCM | USB_OTG_DOEPMSK_EPDM | USB_OTG_DOEPMSK_OTEPSPRM | USB_OTG_DOEPMSK_NAKM; USBx_DEVICE->DIEPMSK |= USB_OTG_DIEPMSK_TOM | USB_OTG_DIEPMSK_XFRCM | USB_OTG_DIEPMSK_EPDM; } /* Set Default Address to 0 */ USBx_DEVICE->DCFG &= ~USB_OTG_DCFG_DAD; /* setup EP0 to receive SETUP packets */ (void)USB_EP0_OutStart(hpcd->Instance, (uint8_t)hpcd->Init.dma_enable, (uint8_t *)hpcd->Setup); __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBRST); } /* Handle Enumeration done Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE)) { (void)USB_ActivateSetup(hpcd->Instance); hpcd->Init.speed = USB_GetDevSpeed(hpcd->Instance); /* Set USB Turnaround time */ (void)USB_SetTurnaroundTime(hpcd->Instance, HAL_RCC_GetHCLKFreq(), (uint8_t)hpcd->Init.speed); #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ResetCallback(hpcd); #else HAL_PCD_ResetCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_ENUMDNE); } /* Handle SOF Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SOF)) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->SOFCallback(hpcd); #else HAL_PCD_SOFCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SOF); } /* Handle Incomplete ISO IN Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR)) { /* Keep application checking the corresponding Iso IN endpoint causing the incomplete Interrupt */ epnum = 0U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ISOINIncompleteCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_ISOINIncompleteCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_IISOIXFR); } /* Handle Incomplete ISO OUT Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT)) { /* Keep application checking the corresponding Iso OUT endpoint causing the incomplete Interrupt */ epnum = 0U; #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum); #else HAL_PCD_ISOOUTIncompleteCallback(hpcd, (uint8_t)epnum); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_PXFR_INCOMPISOOUT); } /* Handle Connection event Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT)) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->ConnectCallback(hpcd); #else HAL_PCD_ConnectCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_SRQINT); } /* Handle Disconnection event Interrupt */ if (__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OTGINT)) { temp = hpcd->Instance->GOTGINT; if ((temp & USB_OTG_GOTGINT_SEDET) == USB_OTG_GOTGINT_SEDET) { #if (USE_HAL_PCD_REGISTER_CALLBACKS == 1U) hpcd->DisconnectCallback(hpcd); #else HAL_PCD_DisconnectCallback(hpcd); #endif /* USE_HAL_PCD_REGISTER_CALLBACKS */ } hpcd->Instance->GOTGINT |= temp; } } } #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
最后
以上就是醉熏裙子最近收集整理的关于【STM32】STM32H750VBT6 CubeMX USBFS-UVC设备实现,以及移植问题开发环境CubeMX配置的全部内容，更多相关【STM32】STM32H750VBT6内容请搜索靠谱客的其他文章。
本图文内容来源于网友提供，作为学习参考使用，或来自网络收集整理，版权属于原作者所有。
发表评论 取消回复