ST / ST_FREQUENCY_DIVIDER

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

Files at this revision

API Documentation at this revision

Revision 1:d75cd2582664, committed 2017-07-10

Comitter:
Davidroid
Date:
Mon Jul 10 16:02:43 2017 +0000
Parent:
0:f11903264b5e
Child:
2:52d3392d33d3
Commit message:
Enabling compilation for F4 family.

Changed in this revision

mbed_lib.json Show annotated file Show diff for this revision Revisions of this file
targets/TARGET_STM/TARGET_STM32F4/TARGET_NUCLEO_F401RE/stm_divider_api.c Show diff for this revision Revisions of this file
targets/TARGET_STM/TARGET_STM32F4/stm_divider_api.c Show annotated file Show diff for this revision Revisions of this file 
--- a/mbed_lib.json	Fri Apr 21 10:22:24 2017 +0200
+++ b/mbed_lib.json	Mon Jul 10 16:02:43 2017 +0000
@@ -1,7 +1,7 @@
 {
     "name": "stm-frequency-divider",
     	"target_overrides": {
-    		"NUCLEO_F401RE": {
+    		"*": {
 			"target.device_has_add": ["FREQUENCY_DIVIDER"]
 		}
     }

--- a/targets/TARGET_STM/TARGET_STM32F4/TARGET_NUCLEO_F401RE/stm_divider_api.c	Fri Apr 21 10:22:24 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,144 +0,0 @@
-/**
- ******************************************************************************
- * @file    stm_divider_api.c
- * @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.
- *
- ******************************************************************************
- */
-
-
-/* Includes ------------------------------------------------------------------*/
-
-#include "cmsis.h"
-#include "stm_divider_api.h"
-#include "component_def.h"
-
-
-/* Variables -----------------------------------------------------------------*/
-
-static TIM_HandleTypeDef TimDividerHandle;
-static TIM_SlaveConfigTypeDef sSlaveConfig;
-static TIM_IC_InitTypeDef sICConfig;
-static TIM_OC_InitTypeDef sOCConfig;
-
-
-/* Functions -----------------------------------------------------------------*/
-
-/**
- * @brief  Initializing timer.
- * @param  None.
- * @retval 0 in case of success, -1 otherwise.
- */
-uint8_t ST_Timer_Init(void)
-{
-  GPIO_InitTypeDef GPIO_InitStruct;
-  
-  /* Enable AUDIO_TIMER clock*/
-  AUDIO_IN_TIMER_CLK_ENABLE();
-  AUDIO_IN_TIMER_CHOUT_GPIO_PORT_CLK_ENABLE();
-  AUDIO_IN_TIMER_CHIN_GPIO_PORT_CLK_ENABLE();
-  
-  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-  GPIO_InitStruct.Pull = GPIO_PULLUP;
-  GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
-  
-  GPIO_InitStruct.Alternate = AUDIO_IN_TIMER_CHIN_AF;
-  GPIO_InitStruct.Pin = AUDIO_IN_TIMER_CHIN_PIN;
-  HAL_GPIO_Init(AUDIO_IN_TIMER_CHIN_GPIO_PORT, &GPIO_InitStruct);
-  
-  GPIO_InitStruct.Alternate = AUDIO_IN_TIMER_CHOUT_AF;
-  GPIO_InitStruct.Pin = AUDIO_IN_TIMER_CHOUT_PIN;
-  HAL_GPIO_Init(AUDIO_IN_TIMER_CHOUT_GPIO_PORT, &GPIO_InitStruct);
-  
-  TimDividerHandle.Instance = AUDIO_IN_TIMER;
-  
-  /* Configure the Input: channel_1 */
-  sICConfig.ICPolarity  = TIM_ICPOLARITY_RISING;
-  sICConfig.ICSelection = TIM_ICSELECTION_DIRECTTI;
-  sICConfig.ICPrescaler = TIM_ICPSC_DIV1;
-  sICConfig.ICFilter = 0;
-  if (HAL_TIM_IC_ConfigChannel(&TimDividerHandle, &sICConfig, TIM_CHANNEL_1) != HAL_OK)
-  {
-    return -1;
-  }
-  
-  /* Configure TIM1 in Gated Slave mode for the external trigger (Filtered Timer
-  Input 1) */
-  sSlaveConfig.InputTrigger = TIM_TS_TI1FP1;
-  sSlaveConfig.SlaveMode    = TIM_SLAVEMODE_EXTERNAL1;
-  if (HAL_TIM_SlaveConfigSynchronization(&TimDividerHandle, &sSlaveConfig) != HAL_OK)
-  {
-    return -1;
-  }
-  
-  /* Initialize TIM3 peripheral in PWM mode*/
-  TimDividerHandle.Init.Period            = 1;
-  TimDividerHandle.Init.Prescaler         = 0;
-  TimDividerHandle.Init.ClockDivision     = 0;
-  TimDividerHandle.Init.CounterMode       = TIM_COUNTERMODE_UP;
-  TimDividerHandle.Init.RepetitionCounter = 0;
-  if (HAL_TIM_PWM_Init(&TimDividerHandle) != HAL_OK)
-  {
-    return -1;
-  }
-  
-  /* Configure the PWM_channel_1  */
-  sOCConfig.OCMode     = TIM_OCMODE_PWM1;
-  sOCConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
-  sOCConfig.Pulse = 1;
-  if (HAL_TIM_PWM_ConfigChannel(&TimDividerHandle, &sOCConfig, TIM_CHANNEL_2) != HAL_OK)
-  {
-    return -1;
-  }
-
-  return 0;
-}
-
-/**
-* @brief  Starting timer.
-* @param  None.
-* @retval 0 in case of success, -1 otherwise.
-*/
-uint8_t ST_Timer_Start(void)
-{
-  if (HAL_TIM_IC_Start(&TimDividerHandle, TIM_CHANNEL_1) != HAL_OK)
-  {
-    return -1;
-  }
-  /* Start the Output Compare */
-  if (HAL_TIM_OC_Start(&TimDividerHandle, TIM_CHANNEL_2) != HAL_OK)
-  {
-    return -1;
-  }
-  
-  return 0;
-}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_STM/TARGET_STM32F4/stm_divider_api.c	Mon Jul 10 16:02:43 2017 +0000
@@ -0,0 +1,144 @@
+/**
+ ******************************************************************************
+ * @file    stm_divider_api.c
+ * @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.
+ *
+ ******************************************************************************
+ */
+
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "cmsis.h"
+#include "stm_divider_api.h"
+#include "component_def.h"
+
+
+/* Variables -----------------------------------------------------------------*/
+
+static TIM_HandleTypeDef TimDividerHandle;
+static TIM_SlaveConfigTypeDef sSlaveConfig;
+static TIM_IC_InitTypeDef sICConfig;
+static TIM_OC_InitTypeDef sOCConfig;
+
+
+/* Functions -----------------------------------------------------------------*/
+
+/**
+ * @brief  Initializing timer.
+ * @param  None.
+ * @retval 0 in case of success, -1 otherwise.
+ */
+uint8_t ST_Timer_Init(void)
+{
+  GPIO_InitTypeDef GPIO_InitStruct;
+  
+  /* Enable AUDIO_TIMER clock*/
+  AUDIO_IN_TIMER_CLK_ENABLE();
+  AUDIO_IN_TIMER_CHOUT_GPIO_PORT_CLK_ENABLE();
+  AUDIO_IN_TIMER_CHIN_GPIO_PORT_CLK_ENABLE();
+  
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+  
+  GPIO_InitStruct.Alternate = AUDIO_IN_TIMER_CHIN_AF;
+  GPIO_InitStruct.Pin = AUDIO_IN_TIMER_CHIN_PIN;
+  HAL_GPIO_Init(AUDIO_IN_TIMER_CHIN_GPIO_PORT, &GPIO_InitStruct);
+  
+  GPIO_InitStruct.Alternate = AUDIO_IN_TIMER_CHOUT_AF;
+  GPIO_InitStruct.Pin = AUDIO_IN_TIMER_CHOUT_PIN;
+  HAL_GPIO_Init(AUDIO_IN_TIMER_CHOUT_GPIO_PORT, &GPIO_InitStruct);
+  
+  TimDividerHandle.Instance = AUDIO_IN_TIMER;
+  
+  /* Configure the Input: channel_1 */
+  sICConfig.ICPolarity  = TIM_ICPOLARITY_RISING;
+  sICConfig.ICSelection = TIM_ICSELECTION_DIRECTTI;
+  sICConfig.ICPrescaler = TIM_ICPSC_DIV1;
+  sICConfig.ICFilter = 0;
+  if (HAL_TIM_IC_ConfigChannel(&TimDividerHandle, &sICConfig, TIM_CHANNEL_1) != HAL_OK)
+  {
+    return -1;
+  }
+  
+  /* Configure TIM1 in Gated Slave mode for the external trigger (Filtered Timer
+  Input 1) */
+  sSlaveConfig.InputTrigger = TIM_TS_TI1FP1;
+  sSlaveConfig.SlaveMode    = TIM_SLAVEMODE_EXTERNAL1;
+  if (HAL_TIM_SlaveConfigSynchronization(&TimDividerHandle, &sSlaveConfig) != HAL_OK)
+  {
+    return -1;
+  }
+  
+  /* Initialize TIM3 peripheral in PWM mode*/
+  TimDividerHandle.Init.Period            = 1;
+  TimDividerHandle.Init.Prescaler         = 0;
+  TimDividerHandle.Init.ClockDivision     = 0;
+  TimDividerHandle.Init.CounterMode       = TIM_COUNTERMODE_UP;
+  TimDividerHandle.Init.RepetitionCounter = 0;
+  if (HAL_TIM_PWM_Init(&TimDividerHandle) != HAL_OK)
+  {
+    return -1;
+  }
+  
+  /* Configure the PWM_channel_1  */
+  sOCConfig.OCMode     = TIM_OCMODE_PWM1;
+  sOCConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
+  sOCConfig.Pulse = 1;
+  if (HAL_TIM_PWM_ConfigChannel(&TimDividerHandle, &sOCConfig, TIM_CHANNEL_2) != HAL_OK)
+  {
+    return -1;
+  }
+
+  return 0;
+}
+
+/**
+* @brief  Starting timer.
+* @param  None.
+* @retval 0 in case of success, -1 otherwise.
+*/
+uint8_t ST_Timer_Start(void)
+{
+  if (HAL_TIM_IC_Start(&TimDividerHandle, TIM_CHANNEL_1) != HAL_OK)
+  {
+    return -1;
+  }
+  /* Start the Output Compare */
+  if (HAL_TIM_OC_Start(&TimDividerHandle, TIM_CHANNEL_2) != HAL_OK)
+  {
+    return -1;
+  }
+  
+  return 0;
+}