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
/**
******************************************************************************
* @file Display/LCD_AnimatedPictureFromSDCard/Src/main.c
* @author MCD Application Team
* @brief This file provides main program functions
******************************************************************************
* @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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_HAL_Applications
* @{
*/
/** @addtogroup LCD_AnimatedPictureFromSDCard
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
FATFS SD_FatFs; /* File system object for SD card logical drive */
char SD_Path[4]; /* SD card logical drive path */
DIR directory;
char* pDirectoryFiles[MAX_BMP_FILES];
uint8_t ubNumberOfFiles = 0;
uint32_t uwBmplen = 0;
extern LTDC_HandleTypeDef hltdc_eval;
extern DSI_HandleTypeDef hdsi_eval;
DSI_VidCfgTypeDef hdsivideo_handle;
/* Internal Buffer defined in SDRAM memory */
uint8_t *uwInternalBuffer;
/* Private function prototypes -----------------------------------------------*/
static void LCD_Config(void);
static void SystemClock_Config(void);
static void Error_Handler(void);
static uint8_t LCD_Init(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint32_t counter = 0;
uint8_t str[30];
uwInternalBuffer = (uint8_t *)INTERNAL_BUFFER_START_ADDRESS;
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Configure LED3 */
BSP_LED_Init(LED3);
/*##-1- Configure LCD ######################################################*/
LCD_Config();
/*##-2- Link the SD Card disk I/O driver ###################################*/
if(FATFS_LinkDriver(&SD_Driver, SD_Path) != 0)
{
Error_Handler();
}
else
{
/*##-3- Initialize the Directory Files pointers (heap) ###################*/
for (counter = 0; counter < MAX_BMP_FILES; counter++)
{
pDirectoryFiles[counter] = malloc(MAX_BMP_FILE_NAME);
if(pDirectoryFiles[counter] == NULL)
{
/* Set the Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(8, (uint8_t*)" Cannot allocate memory ");
Error_Handler();
}
}
/*##-4- Display Background picture #######################################*/
/* Select Background Layer */
BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_BACKGROUND);
/* Register the file system object to the FatFs module */
if(f_mount(&SD_FatFs, (TCHAR const*)SD_Path, 0) != FR_OK)
{
/* FatFs Initialization Error */
/* Set the Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(8, (uint8_t*)" FatFs Initialization Error ");
}
else
{
/* Open directory */
if (f_opendir(&directory, (TCHAR const*)"/BACK") != FR_OK)
{
/* Set the Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(8, (uint8_t*)" Open directory.. fails");
Error_Handler();
}
}
if (Storage_CheckBitmapFile("BACK/image.bmp", &uwBmplen) == 0)
{
/* Format the string */
Storage_OpenReadFile(uwInternalBuffer, "BACK/image.bmp");
/* Write bmp file on LCD frame buffer */
BSP_LCD_DrawBitmap(0, 0, uwInternalBuffer);
}
else
{
/* Set the Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(8, (uint8_t*)" File type not supported. ");
Error_Handler();
}
/*##-5- Display Foreground picture #######################################*/
/* Select Foreground Layer */
BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_FOREGROUND);
/* Decrease the foreground transparency */
BSP_LCD_SetTransparency(LTDC_ACTIVE_LAYER_FOREGROUND, 200);
/* Get the BMP file names on root directory */
ubNumberOfFiles = Storage_GetDirectoryBitmapFiles("/TOP", pDirectoryFiles);
if (ubNumberOfFiles == 0)
{
for (counter = 0; counter < MAX_BMP_FILES; counter++)
{
free(pDirectoryFiles[counter]);
}
/* Set the Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(8, (uint8_t*)" No Bitmap files... ");
Error_Handler();
}
}
HAL_Delay(100);
BSP_LCD_DisplayOn(); /*turn display On after background initialization */
/* Infinite loop */
while(1)
{
counter = 0;
while (counter < ubNumberOfFiles)
{
/* Format the string */
sprintf ((char*)str, "TOP/%-11.11s", pDirectoryFiles[counter]);
if (Storage_CheckBitmapFile((const char*)str, &uwBmplen) == 0)
{
/* Format the string */
sprintf ((char*)str, "TOP/%-11.11s", pDirectoryFiles[counter]);
/* Open a file and copy its content to a buffer */
Storage_OpenReadFile(uwInternalBuffer, (const char*)str);
HAL_Delay(100);
/* Write bmp file on LCD frame buffer */
BSP_LCD_DrawBitmap(0, 0, uwInternalBuffer);
/* Jump to next image */
counter++;
}
else
{
/* Set the Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(7, (uint8_t *) str);
BSP_LCD_DisplayStringAtLine(8, (uint8_t*)" File type not supported. ");
Error_Handler();
}
}
}
}
/**
* @brief LCD configuration.
* @param None
* @retval None
*/
static void LCD_Config(void)
{
/* LCD DSI initialization in mode Video Burst */
LCD_Init();
BSP_LCD_DisplayOff(); /*turn display Off during the initialization */
/* Activate background layers */
BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER_BACKGROUND, LCD_BG_LAYER_ADDRESS);
/* Set LCD Background Layer */
BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_BACKGROUND);
/* Clear the Background Layer */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Activate foreground and background layers */
BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER_FOREGROUND, LCD_FG_LAYER_ADDRESS);
/* Set LCD Foreground Layer */
BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_FOREGROUND);
/* Clear the Foreground Layer */
BSP_LCD_Clear(LCD_COLOR_BLACK);
/* Configure and enable the Color Keying feature */
BSP_LCD_SetColorKeying(1, 0);
/* Configure the transparency for foreground: Increase the transparency */
BSP_LCD_SetTransparency(LTDC_ACTIVE_LAYER_FOREGROUND, 100);
}
static uint8_t LCD_Init(void)
{
DSI_PLLInitTypeDef dsiPllInit;
DSI_PHY_TimerTypeDef PhyTimings;
static RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
uint32_t LcdClock = 19200; /*!< LcdClk = 19200 kHz */
uint32_t laneByteClk_kHz = 0;
uint32_t VSA; /*!< Vertical start active time in units of lines */
uint32_t VBP; /*!< Vertical Back Porch time in units of lines */
uint32_t VFP; /*!< Vertical Front Porch time in units of lines */
uint32_t VACT; /*!< Vertical Active time in units of lines = imageSize Y in pixels to display */
uint32_t HSA; /*!< Horizontal start active time in units of lcdClk */
uint32_t HBP; /*!< Horizontal Back Porch time in units of lcdClk */
uint32_t HFP; /*!< Horizontal Front Porch time in units of lcdClk */
uint32_t HACT; /*!< Horizontal Active time in units of lcdClk = imageSize X in pixels to display */
/* Toggle Hardware Reset of the DSI LCD using
* its XRES signal (active low) */
BSP_LCD_Reset();
/* Call first MSP Initialize only in case of first initialization
* This will set IP blocks LTDC, DSI and DMA2D
* - out of reset
* - clocked
* - NVIC IRQ related to IP blocks enabled
*/
BSP_LCD_MspInit();
/*************************DSI Initialization***********************************/
/* Base address of DSI Host/Wrapper registers to be set before calling De-Init */
hdsi_eval.Instance = DSI;
HAL_DSI_DeInit(&(hdsi_eval));
dsiPllInit.PLLNDIV = 100;
dsiPllInit.PLLIDF = DSI_PLL_IN_DIV5;
dsiPllInit.PLLODF = DSI_PLL_OUT_DIV1;
laneByteClk_kHz = 62500; /* 500 MHz / 8 = 62.5 MHz = 62500 kHz */
/* Set number of Lanes */
hdsi_eval.Init.NumberOfLanes = DSI_TWO_DATA_LANES;
/* TXEscapeCkdiv = f(LaneByteClk)/15.62 = 4 */
hdsi_eval.Init.TXEscapeCkdiv = laneByteClk_kHz/15620;
HAL_DSI_Init(&(hdsi_eval), &(dsiPllInit));
/* The following values are same for portrait and landscape orientations */
VSA = OTM8009A_480X800_VSYNC; /* 10 */
VBP = OTM8009A_480X800_VBP; /* 15 */
VFP = OTM8009A_480X800_VFP; /* 16 */
HSA = OTM8009A_480X800_HSYNC; /* 2 */
HBP = OTM8009A_480X800_HBP; /* 20 */
HFP = OTM8009A_480X800_HFP; /* 20 */
HACT = OTM8009A_800X480_WIDTH; /* 800 */
VACT = OTM8009A_800X480_HEIGHT; /* 480 */
hdsivideo_handle.VirtualChannelID = LCD_OTM8009A_ID;
hdsivideo_handle.ColorCoding = LCD_DSI_PIXEL_DATA_FMT_RBG888;
hdsivideo_handle.VSPolarity = DSI_VSYNC_ACTIVE_HIGH;
hdsivideo_handle.HSPolarity = DSI_HSYNC_ACTIVE_HIGH;
hdsivideo_handle.DEPolarity = DSI_DATA_ENABLE_ACTIVE_HIGH;
hdsivideo_handle.Mode = DSI_VID_MODE_BURST; /* Mode Video burst ie : one LgP per line */
hdsivideo_handle.NullPacketSize = 0xFFF;
hdsivideo_handle.NumberOfChunks = 0;
hdsivideo_handle.PacketSize = HACT; /* Value depending on display orientation choice portrait/landscape */
hdsivideo_handle.HorizontalSyncActive = (HSA * laneByteClk_kHz) / LcdClock;
hdsivideo_handle.HorizontalBackPorch = (HBP * laneByteClk_kHz) / LcdClock;
hdsivideo_handle.HorizontalLine = ((HACT + HSA + HBP + HFP) * laneByteClk_kHz) / LcdClock; /* Value depending on display orientation choice portrait/landscape */
hdsivideo_handle.VerticalSyncActive = VSA;
hdsivideo_handle.VerticalBackPorch = VBP;
hdsivideo_handle.VerticalFrontPorch = VFP;
hdsivideo_handle.VerticalActive = VACT; /* Value depending on display orientation choice portrait/landscape */
/* Enable or disable sending LP command while streaming is active in video mode */
hdsivideo_handle.LPCommandEnable = DSI_LP_COMMAND_ENABLE; /* Enable sending commands in mode LP (Low Power) */
/* Largest packet size possible to transmit in LP mode in VSA, VBP, VFP regions */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPLargestPacketSize = 16;
/* Largest packet size possible to transmit in LP mode in HFP region during VACT period */
/* Only useful when sending LP packets is allowed while streaming is active in video mode */
hdsivideo_handle.LPVACTLargestPacketSize = 0;
/* Specify for each region of the video frame, if the transmission of command in LP mode is allowed in this region */
/* while streaming is active in video mode */
hdsivideo_handle.LPHorizontalFrontPorchEnable = DSI_LP_HFP_ENABLE; /* Allow sending LP commands during HFP period */
hdsivideo_handle.LPHorizontalBackPorchEnable = DSI_LP_HBP_ENABLE; /* Allow sending LP commands during HBP period */
hdsivideo_handle.LPVerticalActiveEnable = DSI_LP_VACT_ENABLE; /* Allow sending LP commands during VACT period */
hdsivideo_handle.LPVerticalFrontPorchEnable = DSI_LP_VFP_ENABLE; /* Allow sending LP commands during VFP period */
hdsivideo_handle.LPVerticalBackPorchEnable = DSI_LP_VBP_ENABLE; /* Allow sending LP commands during VBP period */
hdsivideo_handle.LPVerticalSyncActiveEnable = DSI_LP_VSYNC_ENABLE; /* Allow sending LP commands during VSync = VSA period */
/* Configure DSI Video mode timings with settings set above */
HAL_DSI_ConfigVideoMode(&(hdsi_eval), &(hdsivideo_handle));
/* Configure DSI PHY HS2LP and LP2HS timings */
PhyTimings.ClockLaneHS2LPTime = 35;
PhyTimings.ClockLaneLP2HSTime = 35;
PhyTimings.DataLaneHS2LPTime = 35;
PhyTimings.DataLaneLP2HSTime = 35;
PhyTimings.DataLaneMaxReadTime = 0;
PhyTimings.StopWaitTime = 10;
HAL_DSI_ConfigPhyTimer(&hdsi_eval, &PhyTimings);
/*************************End DSI Initialization*******************************/
/************************LTDC Initialization***********************************/
/* Timing Configuration */
hltdc_eval.Init.HorizontalSync = (HSA - 1);
hltdc_eval.Init.AccumulatedHBP = (HSA + HBP - 1);
hltdc_eval.Init.AccumulatedActiveW = (HACT + HSA + HBP - 1);
hltdc_eval.Init.TotalWidth = (HACT + HSA + HBP + HFP - 1);
/* Initialize the LCD pixel width and pixel height */
hltdc_eval.LayerCfg->ImageWidth = HACT;
hltdc_eval.LayerCfg->ImageHeight = VACT;
/* LCD clock configuration */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 186 Mhz */
/* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 186 MHz / 5 = 37.2 MHz */
/* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_2 = 37.2 MHz / 2 = 18.6 MHz */
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLLSAI.PLLSAIN = 186;
PeriphClkInitStruct.PLLSAI.PLLSAIR = 5;
PeriphClkInitStruct.PLLSAIDivR = RCC_PLLSAIDIVR_2;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* Background value */
hltdc_eval.Init.Backcolor.Blue = 0;
hltdc_eval.Init.Backcolor.Green = 0;
hltdc_eval.Init.Backcolor.Red = 0;
hltdc_eval.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc_eval.Instance = LTDC;
/* Get LTDC Configuration from DSI Configuration */
HAL_LTDC_StructInitFromVideoConfig(&(hltdc_eval), &(hdsivideo_handle));
/* Initialize the LTDC */
HAL_LTDC_Init(&hltdc_eval);
/* Enable the DSI host and wrapper after the LTDC initialization
To avoid any synchronization issue, the DSI shall be started after enabling the LTDC */
HAL_DSI_Start(&(hdsi_eval));
#if !defined(DATA_IN_ExtSDRAM)
/* Initialize the SDRAM */
BSP_SDRAM_Init();
#endif /* DATA_IN_ExtSDRAM */
/* Initialize the font */
BSP_LCD_SetFont(&LCD_DEFAULT_FONT);
/************************End LTDC Initialization*******************************/
/***********************OTM8009A Initialization********************************/
/* Initialize the OTM8009A LCD Display IC Driver (KoD LCD IC Driver)
* depending on configuration set in 'hdsivideo_handle'.
*/
OTM8009A_Init(OTM8009A_FORMAT_RGB888, OTM8009A_ORIENTATION_LANDSCAPE);
/***********************End OTM8009A Initialization****************************/
return LCD_OK;
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
static void Error_Handler(void)
{
BSP_LCD_DisplayOn(); /*turn display On in case of error to display the error message */
/* Turn LED3 on */
BSP_LED_On(LED3);
while(1)
{
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 180000000
* HCLK(Hz) = 180000000
* AHB Prescaler = 1
* APB1 Prescaler = 4
* APB2 Prescaler = 2
* HSE Frequency(Hz) = 25000000
* PLL_M = 25
* PLL_N = 360
* PLL_P = 2
* PLL_Q = 7
* PLL_R = 6
* VDD(V) = 3.3
* Main regulator output voltage = Scale1 mode
* Flash Latency(WS) = 5
* @param None
* @retval None
*/
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
HAL_StatusTypeDef ret = HAL_OK;
/* Enable Power Control clock */
__HAL_RCC_PWR_CLK_ENABLE();
/* The voltage scaling allows optimizing the power consumption when the device is
clocked below the maximum system frequency, to update the voltage scaling value
regarding system frequency refer to product datasheet. */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 25;
RCC_OscInitStruct.PLL.PLLN = 360;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
RCC_OscInitStruct.PLL.PLLR = 6;
ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
if(ret != HAL_OK)
{
Error_Handler();
}
/* Activate the OverDrive to reach the 180 MHz Frequency */
ret = HAL_PWREx_EnableOverDrive();
if(ret != HAL_OK)
{
Error_Handler();
}
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
if(ret != HAL_OK)
{
Error_Handler();
}
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/