如何使用STM32实现systick的精确延时-SYSTICK寄存器初始化
void SysTick_Configuration(void)
{
if (SysTick_Config(SystemCoreClock / 100))
{
while (1);
}
NVIC_SetPriority(SysTick_IRQn, 0x0);
}
单片机与PC之间串行通信设计-源程序:
#include
sbit button=P3^5;
void init_tx()
{
TMOD=0x20;
TH1=0xfd;
TL1=0xfd;
PCON=0x00;
SCON=0x40;
EA=1;
ES=1;
EX1=1;
TI=0;
EX1=1;
IT1=0;
TR1=1;
}
MSP430单片机中断函数的编写方法-#pragmavector=USCI_A0_VECTOR
__interruptvoidUSCI_A0_ISR(void)
{
switch(__even_in_range(UCA0IV,4))
{
case0:
break;
case2://接收中断
//dosomethinghere
break;
case4://发送中断
//dosomethinghere
break;
default:
break;
}
}
AVR单片的外部中断应用设计-#include
#include
#include interrupt.h》
void port_init(void)
{
DDRB = 0xff;
PORTB = 0xff;
DDRD = 0x00;
PORTD |= (1 《《 2);
如何升级STM32单片机的代码-bootloader设置:
static void check_boot_mode(void)
{
uint32_t JumpAddress;
void(*Jump_To_Application)(void);
if (((*((__IO uint32_t*)(APP_SEGA_START_ADDRESS+8))) & 0x2FFE0000 ) == 0x20000000)
{
includestm32f10xhincludestm32f10x_usarthvoidRCC_Config(void);voidGPIO_Config(void);voidUSART_Config(
includestringh>voidmain(void){inta=15,b=24;printf(a=%db=%dn,a,b);a=a^b;b=b^a;a=a^b;printf(a=%db=%