251 lines
7.5 KiB
C
251 lines
7.5 KiB
C
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/*******************************************************************************
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* Copyright (C) 2019, Huada Semiconductor Co.,Ltd All rights reserved.
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*
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* This software is owned and published by:
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* Huada Semiconductor Co.,Ltd ("HDSC").
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*
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* BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND
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* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
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*
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* This software contains source code for use with HDSC
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* components. This software is licensed by HDSC to be adapted only
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* for use in systems utilizing HDSC components. HDSC shall not be
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* responsible for misuse or illegal use of this software for devices not
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* supported herein. HDSC is providing this software "AS IS" and will
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* not be responsible for issues arising from incorrect user implementation
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* of the software.
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*
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* Disclaimer:
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* HDSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE,
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* REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS),
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* ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING,
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* WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED
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* WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED
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* WARRANTY OF NONINFRINGEMENT.
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* HDSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT,
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* NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT
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* LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
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* LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR
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* INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA,
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* SAVINGS OR PROFITS,
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* EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR
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* INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED
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* FROM, THE SOFTWARE.
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*
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* This software may be replicated in part or whole for the licensed use,
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* with the restriction that this Disclaimer and Copyright notice must be
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* included with each copy of this software, whether used in part or whole,
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* at all times.
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*/
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/******************************************************************************/
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/** \file ddl.c
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**
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** Common API of DDL.
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** @link ddlGroup Some description @endlink
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**
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** - 2019-03-03
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**
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******************************************************************************/
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/******************************************************************************/
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/* Include files */
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/******************************************************************************/
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#include "ddl.h"
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/**
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******************************************************************************
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** \addtogroup DDL Common Functions
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******************************************************************************/
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//@{
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/******************************************************************************/
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/* Local pre-processor symbols/macros ('#define') */
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/******************************************************************************/
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/******************************************************************************/
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/* Global variable definitions (declared in header file with 'extern') */
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/******************************************************************************/
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/******************************************************************************/
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/* Local type definitions ('typedef') */
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/******************************************************************************/
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/******************************************************************************/
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/* Local variable definitions ('static') */
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/******************************************************************************/
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/******************************************************************************/
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/* Local function prototypes ('static') */
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/******************************************************************************/
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/******************************************************************************/
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/* Function implementation - global ('extern') and local ('static') */
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/******************************************************************************/
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#ifndef __DEBUG
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#define __DEBUG
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//#define __CC_ARM
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#endif
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uint32_t Log2(uint32_t u32Val)
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{
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uint32_t u32V1 = 0;
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if(0u == u32Val)
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{
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return 0;
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}
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while(u32Val > 1u)
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{
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u32V1++;
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u32Val /=2;
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}
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return u32V1;
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}
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/**
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*******************************************************************************
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** \brief Memory clear function for DDL_ZERO_STRUCT()
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******************************************************************************/
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void ddl_memclr(void *pu8Address, uint32_t u32Count)
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{
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uint8_t *pu8Addr = (uint8_t *)pu8Address;
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if(NULL == pu8Addr)
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{
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return;
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}
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while (u32Count--)
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{
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*pu8Addr++ = 0;
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}
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}
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/**
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* \brief delay1ms
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* delay approximately 1ms.
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* \param [in] u32Cnt
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* \retval void
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*/
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void delay1ms(uint32_t u32Cnt)
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{
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uint32_t u32end;
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SysTick->LOAD = 0xFFFFFF;
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SysTick->VAL = 0;
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SysTick->CTRL = SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_CLKSOURCE_Msk;
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while(u32Cnt-- > 0)
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{
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SysTick->VAL = 0;
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u32end = 0x1000000 - SystemCoreClock/1000;
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while(SysTick->VAL > u32end)
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{
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;
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}
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}
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SysTick->CTRL = (SysTick->CTRL & (~SysTick_CTRL_ENABLE_Msk));
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}
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/**
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* \brief delay100us
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* delay approximately 100us.
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* \param [in] u32Cnt
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* \retval void
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*/
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void delay100us(uint32_t u32Cnt)
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{
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uint32_t u32end;
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SysTick->LOAD = 0xFFFFFF;
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SysTick->VAL = 0;
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SysTick->CTRL = SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_CLKSOURCE_Msk;
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while(u32Cnt-- > 0)
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{
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SysTick->VAL = 0;
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u32end = 0x1000000 - SystemCoreClock/10000;
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while(SysTick->VAL > u32end)
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{
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;
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}
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}
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SysTick->CTRL = (SysTick->CTRL & (~SysTick_CTRL_ENABLE_Msk));
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}
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/**
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* \brief delay10us
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* delay approximately 10us.
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* \param [in] u32Cnt
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* \retval void
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*/
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void delay10us(uint32_t u32Cnt)
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{
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uint32_t u32end;
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SysTick->LOAD = 0xFFFFFF;
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SysTick->VAL = 0;
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SysTick->CTRL = SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_CLKSOURCE_Msk;
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while(u32Cnt-- > 0)
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{
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SysTick->VAL = 0;
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u32end = 0x1000000 - SystemCoreClock/100000;
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while(SysTick->VAL > u32end)
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{
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;
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}
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}
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SysTick->CTRL = (SysTick->CTRL & (~SysTick_CTRL_ENABLE_Msk));
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}
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/**
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* \brief set register bit
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*
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* \param [in] addr
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* \param [in] offset
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* \retval void
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*/
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void SetBit(uint32_t addr, uint32_t offset, boolean_t bFlag)
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{
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if(TRUE == bFlag)
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{
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*((volatile uint32_t *)(addr)) |= ((1UL)<<(offset));
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}
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else
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{
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*((volatile uint32_t *)(addr)) &= (~(1UL<<(offset)));
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}
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}
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/**
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* \brief get register bit
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*
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* \param [in] addr
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* \param [in] offset
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* \retval void
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*/
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boolean_t GetBit(uint32_t addr, uint32_t offset)
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{
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return ((((*((volatile uint32_t *)(addr))) >> (offset)) & 1u) > 0) ? TRUE : FALSE;
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}
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//@} // DDL Functions
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/******************************************************************************
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* EOF (not truncated)
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******************************************************************************/
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