单片机解密NXP_LPC1114延时函数集合
| 单片机解密#include "LPC11XX.h" 单片机解密#include "gpio.h" 单片机解密#include "timer16.h" /*系统时钟配置为48MHz，AHB不分频，一次定时器时钟为48Mhz，因此得出以下分频值，匹配值*/ void Delay_Us(unsigned int DelayTimes) { /* * setup timer #1 for delay */ //LPC_SYSCON->SYSAHBCLKCTRL |= (1<<8); /*开启定时器Timer16_1时钟--时钟配置中开启该时钟*/ LPC_TMR16B1->TCR = 0x02; /* reset timer */ LPC_TMR16B1->PR = 48; /* set prescaler to zero 根据AHB时钟确定分频值*/ LPC_TMR16B1->MR0 = DelayTimes; /* 所需的延时时间 */ LPC_TMR16B1->IR = 0xff; /* reset all interrrupts 复位所有的中断*/ LPC_TMR16B1->MCR = 0x04; /* stop timer on match --达到匹配停止*/ LPC_TMR16B1->TCR = 0x01; /* start timer 启动定时器*/ while (LPC_TMR16B1->TCR & 0x01); /*等待直到时间到*/ LPC_TMR16B1->TCR = 0x00; /* Close timer --关闭定时器*/ } void Delay_Ms(unsigned int DelayTimes) { /* * setup timer #1 for delay */ //LPC_SYSCON->SYSAHBCLKCTRL |= (1<<8); //开启定时器Timer16_1时钟 LPC_TMR16B1->TCR = 0x02; /* reset timer */ LPC_TMR16B1->PR = 48000; /* set prescaler to zero */ LPC_TMR16B1->MR0 = DelayTimes; LPC_TMR16B1->IR = 0xff; /* reset all interrrupts */ LPC_TMR16B1->MCR = 0x04; /* stop timer on match */ LPC_TMR16B1->TCR = 0x01; /* start timer */ while (LPC_TMR16B1->TCR & 0x01); /*等待直到时间到*/ LPC_TMR16B1->TCR = 0x00; /* Close timer */ } void Delay_Sec(unsigned char DelayTimes) { /* * setup timer #1 for delay */ //LPC_SYSCON->SYSAHBCLKCTRL |= (1<<8); //开启定时器Timer16_1时钟 LPC_TMR16B1->TCR = 0x02; /* reset timer */ LPC_TMR16B1->PR = 48000000; /* set prescaler to zero */ LPC_TMR16B1->MR0 = DelayTimes; LPC_TMR16B1->IR = 0xff; /* reset all interrrupts */ LPC_TMR16B1->MCR = 0x04; /* stop timer on match */ LPC_TMR16B1->TCR = 0x01; /* start timer */ while (LPC_TMR16B1->TCR & 0x01); /*等待直到时间到*/ LPC_TMR16B1->TCR = 0x00; /* Close timer */ } |
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