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Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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1 /**
2 ******************************************************************************
3 * @file stm3210b_eval.c
4 * @author MCD Application Team
5 * @version V4.5.0
6 * @date 07-March-2011
7 * @brief This file provides
8 * - set of firmware functions to manage Leds, push-button and COM ports
9 * - low level initialization functions for SD card (on SPI), SPI serial
10 * flash (sFLASH) and temperature sensor (LM75)
11 * available on STM3210B-EVAL evaluation board from STMicroelectronics.
12 ******************************************************************************
13 * @attention
14 *
15 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
16 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
17 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
18 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
19 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
20 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
21 *
22 * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
23 ******************************************************************************
24 */
25
26 /* Includes ------------------------------------------------------------------*/
27 #include "stm3210b_eval.h"
28
29 /** @addtogroup Utilities
30 * @{
31 */
32
33 /** @addtogroup STM32_EVAL
34 * @{
35 */
36
37 /** @addtogroup STM3210B_EVAL
38 * @{
39 */
40
41 /** @defgroup STM3210B_EVAL_LOW_LEVEL
42 * @brief This file provides firmware functions to manage Leds, push-buttons,
43 * COM ports, SD card on SPI, serial flash (sFLASH), serial EEPROM (sEE)
44 * and temperature sensor (LM75) available on STM3210B-EVAL evaluation
45 * board from STMicroelectronics.
46 * @{
47 */
48
49 /** @defgroup STM3210B_EVAL_LOW_LEVEL_Private_TypesDefinitions
50 * @{
51 */
52 /**
53 * @}
54 */
55
56
57 /** @defgroup STM3210B_EVAL_LOW_LEVEL_Private_Defines
58 * @{
59 */
60 /**
61 * @}
62 */
63
64
65 /** @defgroup STM3210B_EVAL_LOW_LEVEL_Private_Macros
66 * @{
67 */
68 /**
69 * @}
70 */
71
72
73 /** @defgroup STM3210B_EVAL_LOW_LEVEL_Private_Variables
74 * @{
75 */
76 GPIO_TypeDef* GPIO_PORT[LEDn] = {LED1_GPIO_PORT, LED2_GPIO_PORT, LED3_GPIO_PORT,
77 LED4_GPIO_PORT};
78 const uint16_t GPIO_PIN[LEDn] = {LED1_PIN, LED2_PIN, LED3_PIN,
79 LED4_PIN};
80 const uint32_t GPIO_CLK[LEDn] = {LED1_GPIO_CLK, LED2_GPIO_CLK, LED3_GPIO_CLK,
81 LED4_GPIO_CLK};
82
83 GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT, TAMPER_BUTTON_GPIO_PORT,
84 KEY_BUTTON_GPIO_PORT, RIGHT_BUTTON_GPIO_PORT,
85 LEFT_BUTTON_GPIO_PORT, UP_BUTTON_GPIO_PORT,
86 DOWN_BUTTON_GPIO_PORT, SEL_BUTTON_GPIO_PORT};
87
88 const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN, TAMPER_BUTTON_PIN,
89 KEY_BUTTON_PIN, RIGHT_BUTTON_PIN,
90 LEFT_BUTTON_PIN, UP_BUTTON_PIN,
91 DOWN_BUTTON_PIN, SEL_BUTTON_PIN};
92
93 const uint32_t BUTTON_CLK[BUTTONn] = {WAKEUP_BUTTON_GPIO_CLK, TAMPER_BUTTON_GPIO_CLK,
94 KEY_BUTTON_GPIO_CLK, RIGHT_BUTTON_GPIO_CLK,
95 LEFT_BUTTON_GPIO_CLK, UP_BUTTON_GPIO_CLK,
96 DOWN_BUTTON_GPIO_CLK, SEL_BUTTON_GPIO_CLK};
97
98 const uint16_t BUTTON_EXTI_LINE[BUTTONn] = {WAKEUP_BUTTON_EXTI_LINE,
99 TAMPER_BUTTON_EXTI_LINE,
100 KEY_BUTTON_EXTI_LINE,
101 RIGHT_BUTTON_EXTI_LINE,
102 LEFT_BUTTON_EXTI_LINE,
103 UP_BUTTON_EXTI_LINE,
104 DOWN_BUTTON_EXTI_LINE,
105 SEL_BUTTON_EXTI_LINE};
106
107 const uint16_t BUTTON_PORT_SOURCE[BUTTONn] = {WAKEUP_BUTTON_EXTI_PORT_SOURCE,
108 TAMPER_BUTTON_EXTI_PORT_SOURCE,
109 KEY_BUTTON_EXTI_PORT_SOURCE,
110 RIGHT_BUTTON_EXTI_PORT_SOURCE,
111 LEFT_BUTTON_EXTI_PORT_SOURCE,
112 UP_BUTTON_EXTI_PORT_SOURCE,
113 DOWN_BUTTON_EXTI_PORT_SOURCE,
114 SEL_BUTTON_EXTI_PORT_SOURCE};
115
116 const uint16_t BUTTON_PIN_SOURCE[BUTTONn] = {WAKEUP_BUTTON_EXTI_PIN_SOURCE,
117 TAMPER_BUTTON_EXTI_PIN_SOURCE,
118 KEY_BUTTON_EXTI_PIN_SOURCE,
119 RIGHT_BUTTON_EXTI_PIN_SOURCE,
120 LEFT_BUTTON_EXTI_PIN_SOURCE,
121 UP_BUTTON_EXTI_PIN_SOURCE,
122 DOWN_BUTTON_EXTI_PIN_SOURCE,
123 SEL_BUTTON_EXTI_PIN_SOURCE};
124
125 const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_EXTI_IRQn, TAMPER_BUTTON_EXTI_IRQn,
126 KEY_BUTTON_EXTI_IRQn, RIGHT_BUTTON_EXTI_IRQn,
127 LEFT_BUTTON_EXTI_IRQn, UP_BUTTON_EXTI_IRQn,
128 DOWN_BUTTON_EXTI_IRQn, SEL_BUTTON_EXTI_IRQn};
129
130 USART_TypeDef* COM_USART[COMn] = {EVAL_COM1, EVAL_COM2};
131
132 GPIO_TypeDef* COM_TX_PORT[COMn] = {EVAL_COM1_TX_GPIO_PORT, EVAL_COM2_TX_GPIO_PORT};
133
134 GPIO_TypeDef* COM_RX_PORT[COMn] = {EVAL_COM1_RX_GPIO_PORT, EVAL_COM2_RX_GPIO_PORT};
135
136 const uint32_t COM_USART_CLK[COMn] = {EVAL_COM1_CLK, EVAL_COM2_CLK};
137
138 const uint32_t COM_TX_PORT_CLK[COMn] = {EVAL_COM1_TX_GPIO_CLK, EVAL_COM2_TX_GPIO_CLK};
139
140 const uint32_t COM_RX_PORT_CLK[COMn] = {EVAL_COM1_RX_GPIO_CLK, EVAL_COM2_RX_GPIO_CLK};
141
142 const uint16_t COM_TX_PIN[COMn] = {EVAL_COM1_TX_PIN, EVAL_COM2_TX_PIN};
143
144 const uint16_t COM_RX_PIN[COMn] = {EVAL_COM1_RX_PIN, EVAL_COM2_RX_PIN};
145
146
147 /**
148 * @}
149 */
150
151
152 /** @defgroup STM3210B_EVAL_LOW_LEVEL_Private_FunctionPrototypes
153 * @{
154 */
155
156 /**
157 * @}
158 */
159
160
161 /** @defgroup STM3210B_EVAL_LOW_LEVEL_Private_Functions
162 * @{
163 */
164
165 /**
166 * @brief Configures LED GPIO.
167 * @param Led: Specifies the Led to be configured.
168 * This parameter can be one of following parameters:
169 * @arg LED1
170 * @arg LED2
171 * @arg LED3
172 * @arg LED4
173 * @retval None
174 */
175 void STM_EVAL_LEDInit(Led_TypeDef Led)
176 {
177 GPIO_InitTypeDef GPIO_InitStructure;
178
179 /* Enable the GPIO_LED Clock */
180 RCC_APB2PeriphClockCmd(GPIO_CLK[Led], ENABLE);
181
182 /* Configure the GPIO_LED pin */
183 GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Led];
184 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
185 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
186
187 GPIO_Init(GPIO_PORT[Led], &GPIO_InitStructure);
188 }
189
190 /**
191 * @brief Turns selected LED On.
192 * @param Led: Specifies the Led to be set on.
193 * This parameter can be one of following parameters:
194 * @arg LED1
195 * @arg LED2
196 * @arg LED3
197 * @arg LED4
198 * @retval None
199 */
200 void STM_EVAL_LEDOn(Led_TypeDef Led)
201 {
202 GPIO_PORT[Led]->BSRR = GPIO_PIN[Led];
203 }
204
205 /**
206 * @brief Turns selected LED Off.
207 * @param Led: Specifies the Led to be set off.
208 * This parameter can be one of following parameters:
209 * @arg LED1
210 * @arg LED2
211 * @arg LED3
212 * @arg LED4
213 * @retval None
214 */
215 void STM_EVAL_LEDOff(Led_TypeDef Led)
216 {
217 GPIO_PORT[Led]->BRR = GPIO_PIN[Led];
218 }
219
220 /**
221 * @brief Toggles the selected LED.
222 * @param Led: Specifies the Led to be toggled.
223 * This parameter can be one of following parameters:
224 * @arg LED1
225 * @arg LED2
226 * @arg LED3
227 * @arg LED4
228 * @retval None
229 */
230 void STM_EVAL_LEDToggle(Led_TypeDef Led)
231 {
232 GPIO_PORT[Led]->ODR ^= GPIO_PIN[Led];
233 }
234
235 /**
236 * @brief Configures Button GPIO and EXTI Line.
237 * @param Button: Specifies the Button to be configured.
238 * This parameter can be one of following parameters:
239 * @arg BUTTON_WAKEUP: Wakeup Push Button
240 * @arg BUTTON_TAMPER: Tamper Push Button
241 * @arg BUTTON_KEY: Key Push Button
242 * @arg BUTTON_RIGHT: Joystick Right Push Button
243 * @arg BUTTON_LEFT: Joystick Left Push Button
244 * @arg BUTTON_UP: Joystick Up Push Button
245 * @arg BUTTON_DOWN: Joystick Down Push Button
246 * @arg BUTTON_SEL: Joystick Sel Push Button
247 * @param Button_Mode: Specifies Button mode.
248 * This parameter can be one of following parameters:
249 * @arg BUTTON_MODE_GPIO: Button will be used as simple IO
250 * @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt
251 * generation capability
252 * @retval None
253 */
254 void STM_EVAL_PBInit(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode)
255 {
256 GPIO_InitTypeDef GPIO_InitStructure;
257 EXTI_InitTypeDef EXTI_InitStructure;
258 NVIC_InitTypeDef NVIC_InitStructure;
259
260 /* Enable the BUTTON Clock */
261 RCC_APB2PeriphClockCmd(BUTTON_CLK[Button] | RCC_APB2Periph_AFIO, ENABLE);
262
263 /* Configure Button pin as input floating */
264 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
265 GPIO_InitStructure.GPIO_Pin = BUTTON_PIN[Button];
266 GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStructure);
267
268
269 if (Button_Mode == BUTTON_MODE_EXTI)
270 {
271 /* Connect Button EXTI Line to Button GPIO Pin */
272 GPIO_EXTILineConfig(BUTTON_PORT_SOURCE[Button], BUTTON_PIN_SOURCE[Button]);
273
274 /* Configure Button EXTI line */
275 EXTI_InitStructure.EXTI_Line = BUTTON_EXTI_LINE[Button];
276 EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
277
278 if(Button != BUTTON_WAKEUP)
279 {
280 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
281 }
282 else
283 {
284 EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
285 }
286 EXTI_InitStructure.EXTI_LineCmd = ENABLE;
287 EXTI_Init(&EXTI_InitStructure);
288
289 /* Enable and set Button EXTI Interrupt to the lowest priority */
290 NVIC_InitStructure.NVIC_IRQChannel = BUTTON_IRQn[Button];
291 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
292 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
293 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
294
295 NVIC_Init(&NVIC_InitStructure);
296 }
297 }
298
299 /**
300 * @brief Returns the selected Button state.
301 * @param Button: Specifies the Button to be checked.
302 * This parameter can be one of following parameters:
303 * @arg BUTTON_WAKEUP: Wakeup Push Button
304 * @arg BUTTON_TAMPER: Tamper Push Button
305 * @arg BUTTON_KEY: Key Push Button
306 * @arg BUTTON_RIGHT: Joystick Right Push Button
307 * @arg BUTTON_LEFT: Joystick Left Push Button
308 * @arg BUTTON_UP: Joystick Up Push Button
309 * @arg BUTTON_DOWN: Joystick Down Push Button
310 * @arg BUTTON_SEL: Joystick Sel Push Button
311 * @retval The Button GPIO pin value.
312 */
313 uint32_t STM_EVAL_PBGetState(Button_TypeDef Button)
314 {
315 return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]);
316 }
317
318 /**
319 * @brief Configures COM port.
320 * @param COM: Specifies the COM port to be configured.
321 * This parameter can be one of following parameters:
322 * @arg COM1
323 * @arg COM2
324 * @param USART_InitStruct: pointer to a USART_InitTypeDef structure that
325 * contains the configuration information for the specified USART peripheral.
326 * @retval None
327 */
328 void STM_EVAL_COMInit(COM_TypeDef COM, USART_InitTypeDef* USART_InitStruct)
329 {
330 GPIO_InitTypeDef GPIO_InitStructure;
331
332 /* Enable GPIO clock */
333 RCC_APB2PeriphClockCmd(COM_TX_PORT_CLK[COM] | COM_RX_PORT_CLK[COM] | RCC_APB2Periph_AFIO, ENABLE);
334
335 if (COM == COM1)
336 {
337 RCC_APB2PeriphClockCmd(COM_USART_CLK[COM], ENABLE);
338 }
339 else
340 {
341 /* Enable the USART2 Pins Software Remapping */
342 GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
343 RCC_APB1PeriphClockCmd(COM_USART_CLK[COM], ENABLE);
344 }
345
346 /* Configure USART Tx as alternate function push-pull */
347 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
348 GPIO_InitStructure.GPIO_Pin = COM_TX_PIN[COM];
349 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
350 GPIO_Init(COM_TX_PORT[COM], &GPIO_InitStructure);
351
352
353 /* Configure USART Rx as input floating */
354 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
355 GPIO_InitStructure.GPIO_Pin = COM_RX_PIN[COM];
356 GPIO_Init(COM_RX_PORT[COM], &GPIO_InitStructure);
357
358 /* USART configuration */
359 USART_Init(COM_USART[COM], USART_InitStruct);
360
361 /* Enable USART */
362 USART_Cmd(COM_USART[COM], ENABLE);
363 }
364
365 /**
366 * @brief DeInitializes the SD/SD communication.
367 * @param None
368 * @retval None
369 */
370 void SD_LowLevel_DeInit(void)
371 {
372 GPIO_InitTypeDef GPIO_InitStructure;
373
374 SPI_Cmd(SD_SPI, DISABLE); /*!< SD_SPI disable */
375 SPI_I2S_DeInit(SD_SPI); /*!< DeInitializes the SD_SPI */
376
377 /*!< SD_SPI Periph clock disable */
378 RCC_APB2PeriphClockCmd(SD_SPI_CLK, DISABLE);
379
380 /*!< Configure SD_SPI pins: SCK */
381 GPIO_InitStructure.GPIO_Pin = SD_SPI_SCK_PIN;
382 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
383 GPIO_Init(SD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
384
385 /*!< Configure SD_SPI pins: MISO */
386 GPIO_InitStructure.GPIO_Pin = SD_SPI_MISO_PIN;
387 GPIO_Init(SD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
388
389 /*!< Configure SD_SPI pins: MOSI */
390 GPIO_InitStructure.GPIO_Pin = SD_SPI_MOSI_PIN;
391 GPIO_Init(SD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
392
393 /*!< Configure SD_SPI_CS_PIN pin: SD Card CS pin */
394 GPIO_InitStructure.GPIO_Pin = SD_CS_PIN;
395 GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStructure);
396
397 /*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */
398 GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
399 GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
400 }
401
402 /**
403 * @brief Initializes the SD_SPI and CS pins.
404 * @param None
405 * @retval None
406 */
407 void SD_LowLevel_Init(void)
408 {
409 GPIO_InitTypeDef GPIO_InitStructure;
410 SPI_InitTypeDef SPI_InitStructure;
411
412 /*!< SD_SPI_CS_GPIO, SD_SPI_MOSI_GPIO, SD_SPI_MISO_GPIO, SD_SPI_DETECT_GPIO
413 and SD_SPI_SCK_GPIO Periph clock enable */
414 RCC_APB2PeriphClockCmd(SD_CS_GPIO_CLK | SD_SPI_MOSI_GPIO_CLK | SD_SPI_MISO_GPIO_CLK |
415 SD_SPI_SCK_GPIO_CLK | SD_DETECT_GPIO_CLK, ENABLE);
416
417 /*!< SD_SPI Periph clock enable */
418 RCC_APB2PeriphClockCmd(SD_SPI_CLK, ENABLE);
419
420
421 /*!< Configure SD_SPI pins: SCK */
422 GPIO_InitStructure.GPIO_Pin = SD_SPI_SCK_PIN;
423 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
424 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
425 GPIO_Init(SD_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
426
427 /*!< Configure SD_SPI pins: MOSI */
428 GPIO_InitStructure.GPIO_Pin = SD_SPI_MOSI_PIN;
429 GPIO_Init(SD_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
430
431 /*!< Configure SD_SPI pins: MISO */
432 GPIO_InitStructure.GPIO_Pin = SD_SPI_MISO_PIN;
433 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
434 GPIO_Init(SD_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
435
436 /*!< Configure SD_SPI_CS_PIN pin: SD Card CS pin */
437 GPIO_InitStructure.GPIO_Pin = SD_CS_PIN;
438 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
439 GPIO_Init(SD_CS_GPIO_PORT, &GPIO_InitStructure);
440
441 /*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */
442 GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;
443 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
444 GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);
445
446 /*!< SD_SPI Config */
447 SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
448 SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
449 SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
450 SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
451 SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
452 SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
453 SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
454 SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
455 SPI_InitStructure.SPI_CRCPolynomial = 7;
456 SPI_Init(SD_SPI, &SPI_InitStructure);
457
458 SPI_Cmd(SD_SPI, ENABLE); /*!< SD_SPI enable */
459 }
460
461 /**
462 * @brief DeInitializes the peripherals used by the SPI FLASH driver.
463 * @param None
464 * @retval None
465 */
466 void sFLASH_LowLevel_DeInit(void)
467 {
468 GPIO_InitTypeDef GPIO_InitStructure;
469
470 /*!< Disable the sFLASH_SPI */
471 SPI_Cmd(sFLASH_SPI, DISABLE);
472
473 /*!< DeInitializes the sFLASH_SPI */
474 SPI_I2S_DeInit(sFLASH_SPI);
475
476 /*!< sFLASH_SPI Periph clock disable */
477 RCC_APB2PeriphClockCmd(sFLASH_SPI_CLK, DISABLE);
478
479 /*!< Configure sFLASH_SPI pins: SCK */
480 GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_SCK_PIN;
481 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
482 GPIO_Init(sFLASH_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
483
484 /*!< Configure sFLASH_SPI pins: MISO */
485 GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MISO_PIN;
486 GPIO_Init(sFLASH_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
487
488 /*!< Configure sFLASH_SPI pins: MOSI */
489 GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MOSI_PIN;
490 GPIO_Init(sFLASH_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
491
492 /*!< Configure sFLASH_CS_PIN pin: sFLASH Card CS pin */
493 GPIO_InitStructure.GPIO_Pin = sFLASH_CS_PIN;
494 GPIO_Init(sFLASH_CS_GPIO_PORT, &GPIO_InitStructure);
495 }
496
497 /**
498 * @brief Initializes the peripherals used by the SPI FLASH driver.
499 * @param None
500 * @retval None
501 */
502 void sFLASH_LowLevel_Init(void)
503 {
504 GPIO_InitTypeDef GPIO_InitStructure;
505
506 /*!< sFLASH_SPI_CS_GPIO, sFLASH_SPI_MOSI_GPIO, sFLASH_SPI_MISO_GPIO
507 and sFLASH_SPI_SCK_GPIO Periph clock enable */
508 RCC_APB2PeriphClockCmd(sFLASH_CS_GPIO_CLK | sFLASH_SPI_MOSI_GPIO_CLK | sFLASH_SPI_MISO_GPIO_CLK |
509 sFLASH_SPI_SCK_GPIO_CLK, ENABLE);
510
511 /*!< sFLASH_SPI Periph clock enable */
512 RCC_APB2PeriphClockCmd(sFLASH_SPI_CLK, ENABLE);
513
514 /*!< Configure sFLASH_SPI pins: SCK */
515 GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_SCK_PIN;
516 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
517 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
518 GPIO_Init(sFLASH_SPI_SCK_GPIO_PORT, &GPIO_InitStructure);
519
520 /*!< Configure sFLASH_SPI pins: MOSI */
521 GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MOSI_PIN;
522 GPIO_Init(sFLASH_SPI_MOSI_GPIO_PORT, &GPIO_InitStructure);
523
524 /*!< Configure sFLASH_SPI pins: MISO */
525 GPIO_InitStructure.GPIO_Pin = sFLASH_SPI_MISO_PIN;
526 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
527 GPIO_Init(sFLASH_SPI_MISO_GPIO_PORT, &GPIO_InitStructure);
528
529 /*!< Configure sFLASH_CS_PIN pin: sFLASH Card CS pin */
530 GPIO_InitStructure.GPIO_Pin = sFLASH_CS_PIN;
531 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
532 GPIO_Init(sFLASH_CS_GPIO_PORT, &GPIO_InitStructure);
533 }
534
535 /**
536 * @brief DeInitializes the LM75_I2C.
537 * @param None
538 * @retval None
539 */
540 void LM75_LowLevel_DeInit(void)
541 {
542 GPIO_InitTypeDef GPIO_InitStructure;
543
544 /*!< Disable LM75_I2C */
545 I2C_Cmd(LM75_I2C, DISABLE);
546 /*!< DeInitializes the LM75_I2C */
547 I2C_DeInit(LM75_I2C);
548
549 /*!< LM75_I2C Periph clock disable */
550 RCC_APB1PeriphClockCmd(LM75_I2C_CLK, DISABLE);
551
552 /*!< Configure LM75_I2C pins: SCL */
553 GPIO_InitStructure.GPIO_Pin = LM75_I2C_SCL_PIN;
554 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
555 GPIO_Init(LM75_I2C_SCL_GPIO_PORT, &GPIO_InitStructure);
556
557 /*!< Configure LM75_I2C pins: SDA */
558 GPIO_InitStructure.GPIO_Pin = LM75_I2C_SDA_PIN;
559 GPIO_Init(LM75_I2C_SDA_GPIO_PORT, &GPIO_InitStructure);
560
561 /*!< Configure LM75_I2C pin: SMBUS ALERT */
562 GPIO_InitStructure.GPIO_Pin = LM75_I2C_SMBUSALERT_PIN;
563 GPIO_Init(LM75_I2C_SMBUSALERT_GPIO_PORT, &GPIO_InitStructure);
564 }
565
566 /**
567 * @brief Initializes the LM75_I2C.
568 * @param None
569 * @retval None
570 */
571 void LM75_LowLevel_Init(void)
572 {
573 GPIO_InitTypeDef GPIO_InitStructure;
574
575 /*!< LM75_I2C Periph clock enable */
576 RCC_APB1PeriphClockCmd(LM75_I2C_CLK, ENABLE);
577
578 /*!< LM75_I2C_SCL_GPIO_CLK, LM75_I2C_SDA_GPIO_CLK
579 and LM75_I2C_SMBUSALERT_GPIO_CLK Periph clock enable */
580 RCC_APB2PeriphClockCmd(LM75_I2C_SCL_GPIO_CLK | LM75_I2C_SDA_GPIO_CLK |
581 LM75_I2C_SMBUSALERT_GPIO_CLK, ENABLE);
582
583 /*!< Configure LM75_I2C pins: SCL */
584 GPIO_InitStructure.GPIO_Pin = LM75_I2C_SCL_PIN;
585 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
586 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
587 GPIO_Init(LM75_I2C_SCL_GPIO_PORT, &GPIO_InitStructure);
588
589 /*!< Configure LM75_I2C pins: SDA */
590 GPIO_InitStructure.GPIO_Pin = LM75_I2C_SDA_PIN;
591 GPIO_Init(LM75_I2C_SDA_GPIO_PORT, &GPIO_InitStructure);
592
593 /*!< Configure LM75_I2C pin: SMBUS ALERT */
594 GPIO_InitStructure.GPIO_Pin = LM75_I2C_SMBUSALERT_PIN;
595 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
596 GPIO_Init(LM75_I2C_SMBUSALERT_GPIO_PORT, &GPIO_InitStructure);
597 }
598
599 /**
600 * @}
601 */
602
603
604 /**
605 * @}
606 */
607
608 /**
609 * @}
610 */
611
612 /**
613 * @}
614 */
615
616 /**
617 * @}
618 */
619
620 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/