Diff: targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/hal_tick.c

Revision:

384:ef87175507f1

Parent:

383:0564d9840d0d

Child:

385:be64abf45658

--- a/targets/cmsis/TARGET_STM/TARGET_DISCO_F429ZI/hal_tick.c	Mon Nov 03 11:00:07 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,124 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    hal_tick.c
-  * @author  MCD Application Team
-  * @brief   Initialization of HAL tick
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT 2014 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.
-  *
-  ******************************************************************************
-  */
-#include "hal_tick.h"
-
-TIM_HandleTypeDef TimMasterHandle;
-uint32_t PreviousVal = 0;
-
-void us_ticker_irq_handler(void);
-
-void timer_irq_handler(void) {
-    // Channel 1 for mbed timeout
-    if (__HAL_TIM_GET_ITSTATUS(&TimMasterHandle, TIM_IT_CC1) == SET) {
-        __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC1);
-        us_ticker_irq_handler();
-    }
-
-    // Channel 2 for HAL tick
-    if (__HAL_TIM_GET_ITSTATUS(&TimMasterHandle, TIM_IT_CC2) == SET) {
-        __HAL_TIM_CLEAR_IT(&TimMasterHandle, TIM_IT_CC2);
-        uint32_t val = __HAL_TIM_GetCounter(&TimMasterHandle);
-        if ((val - PreviousVal) >= HAL_TICK_DELAY) {
-            // Increment HAL variable
-            HAL_IncTick();
-            // Prepare next interrupt
-            __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_2, val + HAL_TICK_DELAY);
-            PreviousVal = val;
-#if 0 // For DEBUG only
-            HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_6);
-#endif
-        }
-    }
-}
-
-// Reconfigure the HAL tick using a standard timer instead of systick.
-HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority) {
-    // Enable timer clock
-    TIM_MST_RCC;
-
-    // Reset timer
-    TIM_MST_RESET_ON;
-    TIM_MST_RESET_OFF;
-  
-    // Configure time base
-    TimMasterHandle.Instance = TIM_MST;
-    TimMasterHandle.Init.Period            = 0xFFFFFFFF;
-	if ( SystemCoreClock == 16000000 ) { 
-		TimMasterHandle.Init.Prescaler         = (uint32_t)( SystemCoreClock / 1000000) - 1; // 1 µs tick
-	} else {
-		TimMasterHandle.Init.Prescaler         = (uint32_t)( SystemCoreClock / 2 / 1000000) - 1; // 1 µs tick
-	}
-    TimMasterHandle.Init.ClockDivision     = 0;
-    TimMasterHandle.Init.CounterMode       = TIM_COUNTERMODE_UP;
-    TimMasterHandle.Init.RepetitionCounter = 0;
-    HAL_TIM_OC_Init(&TimMasterHandle);
-
-    NVIC_SetVector(TIM_MST_IRQ, (uint32_t)timer_irq_handler);
-    NVIC_EnableIRQ(TIM_MST_IRQ);
-
-    // Channel 1 for mbed timeout
-    HAL_TIM_OC_Start(&TimMasterHandle, TIM_CHANNEL_1);
-
-    // Channel 2 for HAL tick
-    HAL_TIM_OC_Start(&TimMasterHandle, TIM_CHANNEL_2);
-    PreviousVal = __HAL_TIM_GetCounter(&TimMasterHandle);
-    __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_2, PreviousVal + HAL_TICK_DELAY);
-    __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
-
-#if 0 // For DEBUG only
-    __GPIOB_CLK_ENABLE();
-    GPIO_InitTypeDef GPIO_InitStruct;
-    GPIO_InitStruct.Pin = GPIO_PIN_6;
-    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
-    GPIO_InitStruct.Pull = GPIO_PULLUP;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
-    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
-#endif
-
-    return HAL_OK;
-}
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-  
-/**
-  * @}
-  */    
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/