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https://gitee.com/Lyon1998/pikapython.git
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71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
/*********************************************************************************************************************
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* COPYRIGHT NOTICE
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* Copyright (c) 2020,<2C><><EFBFBD>ɿƼ<C9BF>
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* All rights reserved.
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* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>QQȺ<51><C8BA><EFBFBD><EFBFBD>Ⱥ<EFBFBD><C8BA>824575535
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*
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* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɿƼ<C9BF><C6BC><EFBFBD><EFBFBD>У<EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5>;<EFBFBD><CDBE>
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* <20><>ӭ<EFBFBD><D3AD>λʹ<CEBB>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB8><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>뱣<EFBFBD><EBB1A3><EFBFBD><EFBFBD><EFBFBD>ɿƼ<C9BF><C6BC>İ<EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*
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* @file stm_systick
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* @company <09>ɶ<EFBFBD><C9B6><EFBFBD><EFBFBD>ɿƼ<C9BF><C6BC><EFBFBD><EFBFBD><EFBFBD>˾
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* @author <09><><EFBFBD>ɿƼ<C9BF>(QQ3184284598)
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* @version <09>鿴doc<6F><63>version<6F>ļ<EFBFBD> <20>汾˵<E6B1BE><CBB5>
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* @Software ADS v1.2.2
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* @Target core TC264D
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* @Taobao https://seekfree.taobao.com/
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* @date 2020-3-23
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********************************************************************************************************************/
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#include "IfxStm.h"
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#include "IFXSTM_CFG.h"
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#include "zf_stm_systick.h"
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static uint32 systick_count[2];
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//-------------------------------------------------------------------------------------------------------------------
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// @brief systick<63><6B>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
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// @param time <20><>Ҫ<EFBFBD><D2AA>ʱ<EFBFBD><CAB1>ʱ<EFBFBD><CAB1>
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// @return void
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// Sample usage: <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>ã<EFBFBD><C3A3>û<EFBFBD><C3BB><EFBFBD>ʹ<EFBFBD><CAB9>h<EFBFBD>ļ<EFBFBD><C4BC>еĺ궨<C4BA><EAB6A8>
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//-------------------------------------------------------------------------------------------------------------------
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void systick_delay(STMN_enum stmn, uint32 time)
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{
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uint32 stm_clk;
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stm_clk = IfxStm_getFrequency(IfxStm_getAddress((IfxStm_Index)stmn));
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IfxStm_waitTicks(IfxStm_getAddress((IfxStm_Index)stmn), (uint32)((uint64)stm_clk*time/1000000000));
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}
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//-------------------------------------------------------------------------------------------------------------------
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// @brief systick<63><6B>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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// @param stmn ѡ<><D1A1>ʹ<EFBFBD>õ<EFBFBD>ģ<EFBFBD><C4A3>
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// @return void
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// Sample usage: systick_start(STM0);//<2F><>¼<EFBFBD>µ<EFBFBD>ǰ<EFBFBD><C7B0>ʱ<EFBFBD><CAB1>
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//-------------------------------------------------------------------------------------------------------------------
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void systick_start(STMN_enum stmn)
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{
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systick_count[stmn] = IfxStm_getLower(IfxStm_getAddress((IfxStm_Index)stmn));
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}
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//-------------------------------------------------------------------------------------------------------------------
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// @brief <20><><EFBFBD>õ<EFBFBD>ǰSystem tick timer<65><72>ֵ
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// @param stmn ѡ<><D1A1>ʹ<EFBFBD>õ<EFBFBD>ģ<EFBFBD><C4A3>
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// @return uint32 <09><><EFBFBD>شӿ<D8B4>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>ʱ<EFBFBD><CAB1>(<28><>λ10ns)
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// Sample usage: uint32 tim = systick_getval(STM0);
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//-------------------------------------------------------------------------------------------------------------------
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uint32 systick_getval(STMN_enum stmn)
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{
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uint32 time;
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uint32 stm_clk;
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stm_clk = IfxStm_getFrequency(IfxStm_getAddress((IfxStm_Index)stmn));
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time = IfxStm_getLower(IfxStm_getAddress((IfxStm_Index)stmn)) - systick_count[stmn];
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time = (uint32)((uint64)time * 100000000 / stm_clk);
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return time;
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}
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