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chenxin
2026-04-23 10:50:18 +08:00
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IAPV1.1/Driver/system/delay/delay.c Normal file
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#include "delay.h"
#include "sys.h"
#include <stdio.h>
#include "bsp.h"
//static u8 fac_us=0;//us<75><73>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
//static u16 fac_ms=0;//ms<6D><73>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><>ucos<6F><73>,<2C><><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ms<6D><73>
//void SysTick_Handler(void)
//{
//
//}
//<2F><>ʼ<EFBFBD><CABC><EFBFBD>ӳٺ<D3B3><D9BA><EFBFBD>
//<2F><>ʹ<EFBFBD><CAB9>ucos<6F><73>ʱ<EFBFBD><CAB1>,<2C>˺<EFBFBD><CBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ucos<6F><73>ʱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>
//SYSTICK<43><4B>ʱ<EFBFBD>ӹ̶<D3B9>ΪHCLKʱ<4B>ӵ<EFBFBD>1/8
//SYSCLK:ϵͳʱ<CDB3><CAB1>
//void delay_init(u8 SYSCLK)
//{
// SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);//<2F>ڲ<EFBFBD>ʱ<EFBFBD><CAB1>Դ
// // SysTick->CTRL&=~(1<<2); //SYSTICKʹ<4B><CAB9><EFBFBD>ⲿʱ<E2B2BF><CAB1>Դ
// fac_us=SYSCLK/8; //<2F><><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>ʹ<EFBFBD><CAB9>ucos,fac_us<75><73><EFBFBD><EFBFBD>Ҫʹ<D2AA><CAB9>
// fac_ms=(u16)fac_us*1000;//<2F><><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF>ms<6D><73>Ҫ<EFBFBD><D2AA>systickʱ<6B><CAB1><EFBFBD><EFBFBD>
//}
//void delay_init(void)
//{
// SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK_Div8); //ѡ<><D1A1><EFBFBD>ⲿʱ<E2B2BF><CAB1> HCLK/8
// fac_us=SystemCoreClock/8000000; //Ϊϵͳʱ<CDB3>ӵ<EFBFBD>1/8
//
// fac_ms=(u16)fac_us*1000;//<2F><>ucos<6F><73>,<2C><><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF>ms<6D><73>Ҫ<EFBFBD><D2AA>systickʱ<6B><CAB1><EFBFBD><EFBFBD>
//}
//<2F><>ʱnms
//ע<><D7A2>nms<6D>ķ<EFBFBD>Χ
//SysTick->LOADΪ24λ<34>Ĵ<EFBFBD><C4B4><EFBFBD>,<2C><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱΪ:
//nms<=0xffffff*8*1000/SYSCLK
//SYSCLK<4C><4B>λΪHz,nms<6D><73>λΪms
//<2F><>72M<32><4D><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,nms<=1864
//<2F><>ʱnus
//nusΪҪ<CEAA><D2AA>ʱ<EFBFBD><CAB1>us<75><73>.
//void delay_us(u32 nus)
//{
// u32 temp;
// SysTick->LOAD=nus*fac_us; //ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// SysTick->VAL=0x00; //<2F><><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>
// SysTick->CTRL|=SysTick_CTRL_ENABLE_Msk ; //<2F><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
// do
// {
// temp=SysTick->CTRL;
// }
// while(temp&0x01&&!(temp&(1<<16)));//<2F>ȴ<EFBFBD>ʱ<EFBFBD>䵽<EFBFBD><E4B5BD>
// SysTick->CTRL&=~SysTick_CTRL_ENABLE_Msk; //<2F>رռ<D8B1><D5BC><EFBFBD><EFBFBD><EFBFBD>
// SysTick->VAL =0X00; //<2F><><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>
//}
//<2F><>ʱnms
//ע<><D7A2>nms<6D>ķ<EFBFBD>Χ
//SysTick->LOADΪ24λ<34>Ĵ<EFBFBD><C4B4><EFBFBD>,<2C><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱΪ:
//nms<=0xffffff*8*1000/SYSCLK
//SYSCLK<4C><4B>λΪHz,nms<6D><73>λΪms
//<2F><>72M<32><4D><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,nms<=1864
//void delay_ms(u16 nms)
//{
// u32 temp;
// SysTick->LOAD=(u32)nms*fac_ms;//ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(SysTick->LOADΪ24bit)
// SysTick->VAL =0x00; //<2F><><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>
// SysTick->CTRL|=SysTick_CTRL_ENABLE_Msk ; //<2F><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
// do
// {
// temp=SysTick->CTRL;
// }
// while(temp&0x01&&!(temp&(1<<16)));//<2F>ȴ<EFBFBD>ʱ<EFBFBD>䵽<EFBFBD><E4B5BD>
// SysTick->CTRL&=~SysTick_CTRL_ENABLE_Msk; //<2F>رռ<D8B1><D5BC><EFBFBD><EFBFBD><EFBFBD>
// SysTick->VAL =0X00; //<2F><><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>
//}