138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
/**
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****************************************************************************************************
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* @file fm33lc0xx_fl.c
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* @author FMSH Application Team
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* @brief Source file of FL Driver Library
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****************************************************************************************************
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* @attention
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*
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* Copyright (c) [2019] [Fudan Microelectronics]
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* THIS SOFTWARE is licensed under the Mulan PSL v1.
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* can use this software according to the terms and conditions of the Mulan PSL v1.
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* You may obtain a copy of Mulan PSL v1 at:
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* http://license.coscl.org.cn/MulanPSL
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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* PURPOSE.
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* See the Mulan PSL v1 for more details.
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*
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****************************************************************************************************
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*/
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/* Includes -------------------------------------------------------------------------------------------*/
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#include "fm33lc0xx_fl.h"
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/** @addtogroup FL_EF_DELAY
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* @{
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*/
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/**
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* @brief Initialize the timer(default is Systick) used as delay timer.
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* @note The function is declared as __WEAK to be overwritten in case of other
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* implementation in user file.
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* @param None
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* @retval None
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*/
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__WEAK void FL_DelayInit(void)
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{
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SysTick->CTRL |= SysTick_CTRL_CLKSOURCE_Msk;
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SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk;
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}
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/**
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* @brief Provide block delay in microseconds.
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* @note The function is declared as __WEAK to be overwritten in case of other
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* implementation in user file.
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* @param count specifies the delay count in microseconds.
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* @retval None
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*/
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__WEAK void FL_DelayUs(uint32_t count)
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{
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count = FL_DELAY_US * count;
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count = count > 16777216 ? 16777216 : count;
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SysTick->LOAD = count - 1;
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SysTick->VAL = 0;
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while(!((SysTick->CTRL >> 16) & 0x1));
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}
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/**
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* @brief Provide blocking delay in milliseconds.
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* @note The function is declared as __WEAK to be overwritten in case of other
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* implementation in user file.
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* @param count specifies the delay count in milliseconds.
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* @retval None
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*/
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__WEAK void FL_DelayMs(uint32_t count)
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{
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while(count--)
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{
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FL_DelayUs(1000);
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}
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}
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/**
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* @brief Provide no-blocking delay initialization in microseconds.
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* @note Should be follow By while(!FL_DelayEnd()){ ** user code ** } immediately.
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The function is declared as __WEAK to be overwritten in case of other
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* implementation in user file.
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* @param count specifies the delay count in microseconds.
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* @retval None
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*/
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__WEAK void FL_DelayUsStart(uint32_t count)
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{
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count = FL_DELAY_US * count;
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count = count > 16777216 ? 16777216 : count;
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SysTick->LOAD = count - 1;
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SysTick->VAL = 0;
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}
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/**
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* @brief Provide no-blocking delay initialization in milliseconds.
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* @note Should be followed By while(!FL_DelayEnd()){ ** user code ** }.
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* The function is declared as __WEAK to be overwritten in case of other
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* implementation in user file.
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* @param count specifies the delay count in milliseconds.
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* @retval None
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*/
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__WEAK void FL_DelayMsStart(uint32_t count)
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{
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FL_DelayUsStart(1000 * count);
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}
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/**
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* @brief Showing if the no-blocking delay has ended.
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* @note Should be used with FL_DelayMs/UsStart() function.
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The function is declared as __WEAK to be overwritten in case of other
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* implementation in user file.
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* @param count specifies the delay count in milliseconds.
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* @retval true - delay has ended
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* false - delay is in progress
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*/
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__WEAK bool FL_DelayEnd(void)
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{
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return (((SysTick->CTRL >> 16) & 0x1) == 0x1);
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}
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/**
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*@}
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*/
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/** @addtogroup FL_EF_DELAY
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* @{
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*/
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void FL_Init(void)
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{
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// Init delay support function
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FL_DelayInit();
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}
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/**
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*@}
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*/
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/*************************(C) COPYRIGHT Fudan Microelectronics **** END OF FILE*************************/
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