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
/**
******************************************************************************
* @file BSP/Src/sd.c
* @author MCD Application Team
* @brief This example code shows how to use the SD 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.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_HAL_Examples
* @{
*/
/** @addtogroup BSP
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BLOCK_START_ADDR 0 /* Block start address */
#define NUM_OF_BLOCKS 5 /* Total number of blocks */
#define BUFFER_WORDS_SIZE ((BLOCKSIZE * NUM_OF_BLOCKS) >> 2) /* Total data size in bytes */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint32_t aTxBuffer[BUFFER_WORDS_SIZE];
uint32_t aRxBuffer[BUFFER_WORDS_SIZE];
/* Private function prototypes -----------------------------------------------*/
static void SD_SetHint(void);
static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset);
static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength);
/* Private functions ---------------------------------------------------------*/
/**
* @brief SD Demo
* @param None
* @retval None
*/
void SD_demo(void)
{
uint8_t SD_state = MSD_OK;
static uint8_t prev_status = 0;
SD_SetHint();
SD_state = BSP_SD_Init();
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SD Initialization : FAIL.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SD Initialization : OK.", LEFT_MODE);
SD_state = BSP_SD_Erase(BLOCK_START_ADDR, NUM_OF_BLOCKS);
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"SD ERASE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"SD ERASE : OK.", LEFT_MODE);
/* Fill the buffer to write */
Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF);
SD_state = BSP_SD_WriteBlocks(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT);
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD WRITE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD WRITE : OK.", LEFT_MODE);
SD_state = BSP_SD_ReadBlocks(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT);
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"SD READ : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"SD READ : OK.", LEFT_MODE);
if(Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0)
{
BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SD COMPARE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 175, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SD Test : OK.", LEFT_MODE);
}
}
}
}
}
/* Check if the SD card is plugged in the slot */
if(BSP_SD_IsDetected() == SD_PRESENT)
{
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Connected ", LEFT_MODE);
}
else
{
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Not Connected", LEFT_MODE);
}
while (1)
{
/* Check if the SD card is plugged in the slot */
if(BSP_SD_IsDetected() != SD_PRESENT)
{
if(prev_status == 0)
{
BSP_SD_Init();
prev_status = 1;
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Not Connected", LEFT_MODE);
}
}
else if (prev_status == 1)
{
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Connected ", LEFT_MODE);
prev_status = 0;
}
if(CheckForUserInput() > 0)
{
return;
}
}
}
/**
* @brief Display SD Demo Hint
* @param None
* @retval None
*/
static void SD_SetHint(void)
{
/* Clear the LCD */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Set LCD Demo description */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 80);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_SetFont(&Font24);
BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"SD", CENTER_MODE);
BSP_LCD_SetFont(&Font12);
BSP_LCD_DisplayStringAt(0, 30, (uint8_t *)"This example shows how to write", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 45, (uint8_t *)"and read data on the microSD and also", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 60, (uint8_t *)"how to detect the presence of the card", CENTER_MODE);
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_DrawRect(10, 90, BSP_LCD_GetXSize() - 20, BSP_LCD_GetYSize()- 100);
BSP_LCD_DrawRect(11, 91, BSP_LCD_GetXSize() - 22, BSP_LCD_GetYSize()- 102);
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
}
/**
* @brief Fills buffer with user predefined data.
* @param pBuffer: pointer on the buffer to fill
* @param uwBufferLenght: size of the buffer to fill
* @param uwOffset: first value to fill on the buffer
* @retval None
*/
static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset)
{
uint32_t tmpIndex = 0;
/* Put in global buffer different values */
for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++ )
{
pBuffer[tmpIndex] = tmpIndex + uwOffset;
}
}
/**
* @brief Compares two buffers.
* @param pBuffer1, pBuffer2: buffers to be compared.
* @param BufferLength: buffer's length
* @retval 1: pBuffer identical to pBuffer1
* 0: pBuffer differs from pBuffer1
*/
static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
return 1;
}
pBuffer1++;
pBuffer2++;
}
return 0;
}
/**
* @}
*/
/**
* @}
*/
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.