noInterrupts()和interrupts()这两个函数的用法，谢谢
setup中这么写的
｛
pinMode(2,INPUT);
pinMode(13,OUTPUT);
attachInterrupt(0,counter,RISING);
｝
程序首先要执行一段初始化代码，这个时候要忽略中断，请问，该怎么用啊？谢谢，我是这么写的，但是没用
void loop()
{
noInterrupts();
while(ret_step!=1)rst();
}
就是执行while语句的时候，要忽略中断，该怎么写？谢谢 本帖最后由 smching 于 2013-6-24 22:22 编辑
请参考http://forum.arduino.cc/index.php/topic,43062.0.html
int servo1 = 2;
unsigned long servo1_startPulse;
volatile unsigned servo1_val;
int servo1_Ready;
void setup() {
pinMode(servo1, INPUT);
attachInterrupt(0, rc1_begin, RISING); // catch interrupt 0 (digital pin 2) going HIGH and send to rc1()
}
void rc1_begin() { // enter rc1_begin when interrupt pin goes HIGH.
servo1_startPulse = micros(); // record microseconds() value as servo1_startPulse
detachInterrupt(0);// after recording the value, detach the interrupt from rc1_begin
attachInterrupt(0, rc1_end, FALLING); // re-attach the interrupt as rc1_end, so we can record the value when it goes low
}
void rc1_end() {
servo1_val = micros() - servo1_startPulse;// when interrupt pin goes LOW, record the total pulse length by subtracting previous start value from current micros() vlaue.
detachInterrupt(0);// detach and get ready to go HIGH again
attachInterrupt(0, rc1_begin, RISING);
if (servo1_val < 150 || servo1_val > 600) {// only set the servo1_Ready flag if the value is a valid Servo pulse between 600-2400 microseconds.
servo1_Ready = false;
}
else {
servo1_Ready = true; // if not, don't pass the value to be processed
}
}
void loop() {
Serial.print("ch1:");
Serial.print(servo1_val);
Serial.print("");
} smching 发表于 2013-6-24 22:11 static/image/common/back.gif
请参考http://forum.arduino.cc/index.php/topic,43062.0.html
int servo1 = 2;
谢谢，弄好了
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