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
|
/*
* File : board.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2009 RT-Thread Develop Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2009-01-05 Bernard first implementation
*/
#include <rthw.h>
#include <rtthread.h>
#include "board.h"
/**
* @addtogroup STM32
*/
/*@{*/
#if STM32_USE_SDIO
/**
* @brief DeInitializes the SDIO interface.
* @param None
* @retval None
*/
void SD_LowLevel_DeInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*!< Disable SDIO Clock */
SDIO_ClockCmd(DISABLE);
/*!< Set Power State to OFF */
SDIO_SetPowerState(SDIO_PowerState_OFF);
/*!< DeInitializes the SDIO peripheral */
SDIO_DeInit();
/* Disable the SDIO APB2 Clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, DISABLE);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_MCO);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_MCO);
/* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Configure PD.02 CMD line */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Configure PC.12 pin: CLK pin */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
/**
* @brief Initializes the SD Card and put it into StandBy State (Ready for
* data transfer).
* @param None
* @retval None
*/
void SD_LowLevel_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* GPIOC and GPIOD Periph clock enable */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOD | SD_DETECT_GPIO_CLK, ENABLE);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_SDIO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_SDIO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_SDIO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_SDIO);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_SDIO);
GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_SDIO);
/* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Configure PD.02 CMD line */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Configure PC.12 pin: CLK pin */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */
GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
/* Enable the SDIO APB2 Clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, ENABLE);
/* Enable the DMA2 Clock */
RCC_AHB1PeriphClockCmd(SD_SDIO_DMA_CLK, ENABLE);
}
/**
* @brief Configures the DMA2 Channel4 for SDIO Tx request.
* @param BufferSRC: pointer to the source buffer
* @param BufferSize: buffer size
* @retval None
*/
void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize)
{
DMA_InitTypeDef SDDMA_InitStructure;
DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF);
/* DMA2 Stream3 or Stream6 disable */
DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE);
/* DMA2 Stream3 or Stream6 Config */
DMA_DeInit(SD_SDIO_DMA_STREAM);
SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL;
SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferSRC;
SDDMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
SDDMA_InitStructure.DMA_BufferSize = 0;
SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4;
SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4;
DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure);
DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral);
/* DMA2 Stream3 or Stream6 enable */
DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE);
}
/**
* @brief Configures the DMA2 Channel4 for SDIO Rx request.
* @param BufferDST: pointer to the destination buffer
* @param BufferSize: buffer size
* @retval None
*/
void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize)
{
DMA_InitTypeDef SDDMA_InitStructure;
DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF);
/* DMA2 Stream3 or Stream6 disable */
DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE);
/* DMA2 Stream3 or Stream6 Config */
DMA_DeInit(SD_SDIO_DMA_STREAM);
SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL;
SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS;
SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferDST;
SDDMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
SDDMA_InitStructure.DMA_BufferSize = 0;
SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable;
SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4;
SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4;
DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure);
DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral);
/* DMA2 Stream3 or Stream6 enable */
DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE);
}
/**
* @brief Returns the DMA End Of Transfer Status.
* @param None
* @retval DMA SDIO Stream Status.
*/
uint32_t SD_DMAEndOfTransferStatus(void)
{
return (uint32_t)DMA_GetFlagStatus(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_TCIF);
}
#endif
/*******************************************************************************
* Function Name : NVIC_Configuration
* Description : Configures Vector Table base location.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void NVIC_Configuration(void)
{
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
}
/*******************************************************************************
* Function Name : SysTick_Configuration
* Description : Configures the SysTick for OS tick.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SysTick_Configuration(void)
{
RCC_ClocksTypeDef rcc_clocks;
rt_uint32_t cnts;
RCC_GetClocksFreq(&rcc_clocks);
cnts = (rt_uint32_t)rcc_clocks.HCLK_Frequency / RT_TICK_PER_SECOND;
SysTick_Config(cnts);
SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
}
/**
* This is the timer interrupt service routine.
*
*/
void SysTick_Handler(void)
{
/* enter interrupt */
rt_interrupt_enter();
rt_tick_increase();
/* leave interrupt */
rt_interrupt_leave();
}
/**
* This function will initial STM32 board.
*/
void rt_hw_board_init()
{
/* NVIC Configuration */
NVIC_Configuration();
/* Configure the SysTick */
SysTick_Configuration();
rt_hw_usart_init();
#ifdef RT_USING_CONSOLE
rt_console_set_device(CONSOLE_DEVICE);
#endif
}
/*@}*/
|
