STMicroelectronics library to handle a hardware timer as a frequency divider.

Dependents:   X_NUCLEO_CCA02M1

Fork of ST_FREQUENCY_DIVIDER by ST Expansion SW Team

Platform compatibility

Revision:
0:f11903264b5e
diff -r 000000000000 -r f11903264b5e hal/stm_divider_api.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hal/stm_divider_api.h	Fri Apr 21 10:22:24 2017 +0200
@@ -0,0 +1,75 @@
+/**
+ ******************************************************************************
+ * @file    stm_divider_api.h
+ * @author  AST / Software Platforms and Cloud
+ * @version V1.0
+ * @date    November 8th, 2016
+ * @brief   Utilities header file for the X_NUCLEO_CCA02M1 expansion board.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ *   3. Neither the name of STMicroelectronics nor the names of its contributors
+ *      may be used to endorse or promote products derived from this software
+ *      without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef __DIVIDER_H
+#define __DIVIDER_H
+
+/* Includes ------------------------------------------------------------------*/
+
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif 
+
+/* Definitions ---------------------------------------------------------------*/
+
+#define AUDIO_IN_TIMER                                     TIM3
+#define AUDIO_IN_TIMER_CLK_ENABLE()                        __TIM3_CLK_ENABLE()  
+#define AUDIO_IN_TIMER_CHOUT_AF                            GPIO_AF2_TIM3
+#define AUDIO_IN_TIMER_CHOUT_PIN                           GPIO_PIN_5
+#define AUDIO_IN_TIMER_CHOUT_GPIO_PORT                     GPIOB
+#define AUDIO_IN_TIMER_CHOUT_GPIO_PORT_CLK_ENABLE()        __GPIOB_CLK_ENABLE()  
+#define AUDIO_IN_TIMER_CHIN_AF                             GPIO_AF2_TIM3
+#define AUDIO_IN_TIMER_CHIN_PIN                            GPIO_PIN_4
+#define AUDIO_IN_TIMER_CHIN_GPIO_PORT                      GPIOB
+#define AUDIO_IN_TIMER_CHIN_GPIO_PORT_CLK_ENABLE()         __GPIOB_CLK_ENABLE()   
+
+
+/* Functions -----------------------------------------------------------------*/
+
+uint8_t ST_Timer_Init(void);
+uint8_t ST_Timer_Start(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif