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YuanHongbin
2026-05-09 17:09:52 +08:00
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driver/src/ddl.c
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/*******************************************************************************
* Copyright (C) 2019, Huada Semiconductor Co.,Ltd All rights reserved.
*
* This software is owned and published by:
* Huada Semiconductor Co.,Ltd ("HDSC").
*
* BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND
* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
*
* This software contains source code for use with HDSC
* components. This software is licensed by HDSC to be adapted only
* for use in systems utilizing HDSC components. HDSC shall not be
* responsible for misuse or illegal use of this software for devices not
* supported herein. HDSC is providing this software "AS IS" and will
* not be responsible for issues arising from incorrect user implementation
* of the software.
*
* Disclaimer:
* HDSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE,
* REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS),
* ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING,
* WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED
* WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED
* WARRANTY OF NONINFRINGEMENT.
* HDSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT,
* NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT
* LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
* LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR
* INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA,
* SAVINGS OR PROFITS,
* EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
* YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR
* INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED
* FROM, THE SOFTWARE.
*
* This software may be replicated in part or whole for the licensed use,
* with the restriction that this Disclaimer and Copyright notice must be
* included with each copy of this software, whether used in part or whole,
* at all times.
*/
/******************************************************************************/
/** \file ddl.c
**
** Common API of DDL.
** @link ddlGroup Some description @endlink
**
** - 2019-03-03
**
******************************************************************************/
/******************************************************************************/
/* Include files */
/******************************************************************************/
#include "ddl.h"
/**
******************************************************************************
** \addtogroup DDL Common Functions
******************************************************************************/
//@{
/******************************************************************************/
/* Local pre-processor symbols/macros ('#define') */
/******************************************************************************/
/******************************************************************************/
/* Global variable definitions (declared in header file with 'extern') */
/******************************************************************************/
/******************************************************************************/
/* Local type definitions ('typedef') */
/******************************************************************************/
/******************************************************************************/
/* Local variable definitions ('static') */
/******************************************************************************/
/******************************************************************************/
/* Local function prototypes ('static') */
/******************************************************************************/
/******************************************************************************/
/* Function implementation - global ('extern') and local ('static') */
/******************************************************************************/
#ifndef __DEBUG
#define __DEBUG
//#define __CC_ARM
#endif
uint32_t Log2(uint32_t u32Val)
{
uint32_t u32V1 = 0;
if(0u == u32Val)
{
return 0;
}
while(u32Val > 1u)
{
u32V1++;
u32Val /=2;
}
return u32V1;
}
/**
*******************************************************************************
** \brief Memory clear function for DDL_ZERO_STRUCT()
******************************************************************************/
void ddl_memclr(void *pu8Address, uint32_t u32Count)
{
uint8_t *pu8Addr = (uint8_t *)pu8Address;
if(NULL == pu8Addr)
{
return;
}
while (u32Count--)
{
*pu8Addr++ = 0;
}
}
/**
* \brief delay1ms
* delay approximately 1ms.
* \param [in] u32Cnt
* \retval void
*/
void delay1ms(uint32_t u32Cnt)
{
uint32_t u32end;
SysTick->LOAD = 0xFFFFFF;
SysTick->VAL = 0;
SysTick->CTRL = SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_CLKSOURCE_Msk;
while(u32Cnt-- > 0)
{
SysTick->VAL = 0;
u32end = 0x1000000 - SystemCoreClock/1000;
while(SysTick->VAL > u32end)
{
;
}
}
SysTick->CTRL = (SysTick->CTRL & (~SysTick_CTRL_ENABLE_Msk));
}
/**
* \brief delay100us
* delay approximately 100us.
* \param [in] u32Cnt
* \retval void
*/
void delay100us(uint32_t u32Cnt)
{
uint32_t u32end;
SysTick->LOAD = 0xFFFFFF;
SysTick->VAL = 0;
SysTick->CTRL = SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_CLKSOURCE_Msk;
while(u32Cnt-- > 0)
{
SysTick->VAL = 0;
u32end = 0x1000000 - SystemCoreClock/10000;
while(SysTick->VAL > u32end)
{
;
}
}
SysTick->CTRL = (SysTick->CTRL & (~SysTick_CTRL_ENABLE_Msk));
}
/**
* \brief delay10us
* delay approximately 10us.
* \param [in] u32Cnt
* \retval void
*/
void delay10us(uint32_t u32Cnt)
{
uint32_t u32end;
SysTick->LOAD = 0xFFFFFF;
SysTick->VAL = 0;
SysTick->CTRL = SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_CLKSOURCE_Msk;
while(u32Cnt-- > 0)
{
SysTick->VAL = 0;
u32end = 0x1000000 - SystemCoreClock/100000;
while(SysTick->VAL > u32end)
{
;
}
}
SysTick->CTRL = (SysTick->CTRL & (~SysTick_CTRL_ENABLE_Msk));
}
/**
* \brief set register bit
*
* \param [in] addr
* \param [in] offset
* \retval void
*/
void SetBit(uint32_t addr, uint32_t offset, boolean_t bFlag)
{
if(TRUE == bFlag)
{
*((volatile uint32_t *)(addr)) |= ((1UL)<<(offset));
}
else
{
*((volatile uint32_t *)(addr)) &= (~(1UL<<(offset)));
}
}
/**
* \brief get register bit
*
* \param [in] addr
* \param [in] offset
* \retval void
*/
boolean_t GetBit(uint32_t addr, uint32_t offset)
{
return ((((*((volatile uint32_t *)(addr))) >> (offset)) & 1u) > 0) ? TRUE : FALSE;
}
//@} // DDL Functions
/******************************************************************************
* EOF (not truncated)
******************************************************************************/