AttachIntrerrupt stops NRF24L01+ from working – ARDUINO

huangapple
go评论77阅读模式
英文:

AttachIntrerrupt stops NRF24L01+ from working - ARDUINO

问题

如果我删除 attachInterrupt(digitalPinToInterrupt(encoder1),readEncoder,RISING); ，代码可以运行。但一旦添加了这行，radio.available 下面的任何内容都不会运行。

英文:

If I remove attachInterrupt(digitalPinToInterrupt(encoder1),readEncoder,RISING); The code works. But once its added, the radio.available doesnt let anything under it run.

  1. #include <SPI.h>
  2. #include <nRF24L01.h>
  3. #include <RF24.h>
  5. RF24 radio(7, 8); // CE, CSN
  7. const byte address[6] = "00001";
  10. struct InputData  // define stuct
  11. {
  12.    int x;
  13.    int y;
  14. };
  16. InputData data;
  19. // Motor A connections
  20. int motor_enA = 9;
  21. int motor_in1 = 10;
  22. int motor_in2 = 6;
  25. int encoder1 = 2;
  26. int encoder2 = 3;
  29. int counter = 0;
  30. int angle = 0;
  33. void setup() {
  34.   Serial.begin(9600);
  35.   radio.begin();
  36.   radio.openReadingPipe(1, address);
  37.   radio.setPALevel(RF24_PA_MIN);
  38.   radio.startListening();
  41.   // Set all the motor control pins to outputs
  42.   pinMode(motor_enA, OUTPUT);
  43.   pinMode(motor_in1, OUTPUT);
  44.   pinMode(motor_in2, OUTPUT);
  46.   // Turn off motors - Initial state
  47.   digitalWrite(motor_in1, LOW);
  48.   digitalWrite(motor_in2, LOW);
  49.   analogWrite(motor_enA, 255);
  52.   pinMode (encoder1, INPUT);
  53.   pinMode (encoder2, INPUT);
  55.   attachInterrupt(digitalPinToInterrupt(encoder1),readEncoder,RISING);
  56. }
  58. void loop() {
  59.   readEncoder();
  60.   if (radio.available()) {
  61.     radio.read(&data, sizeof(data));
  62. //    Serial.println(data.y);
  63.     if (data.y > 5) {
  64.       digitalWrite(motor_in1, HIGH);
  65.       digitalWrite(motor_in2, LOW);
  66.     }
  67.     else if (data.y < -5) {
  68.       digitalWrite(motor_in1, LOW);
  69.       digitalWrite(motor_in2, HIGH);
  70.   
  71.     }
  72.     else {
  73.       digitalWrite(motor_in1, LOW);
  74.       digitalWrite(motor_in2, LOW);
  75.     }
  76.   }
  77.   
  78.   if(counter>1){
  79.     counter=0;
  80.     angle+=2;
  81.   }else if(counter<-1){
  82.     counter=0;
  83.     angle-=2;
  84.   }
  85.   Serial.print("Position: ");
  86.   Serial.println(angle);
  87. }
  90. void readEncoder()
  91. {
  92.   if(digitalRead(encoder1)==HIGH){
  93.     int b = digitalRead(encoder2);
  94.     if(b>0){
  95.       counter++;
  96.     }
  97.     else{
  98.       counter--;
  99.     }
  100.   }
  101. }

I have tried removing and adding the line, as described above^^

答案1

得分: 0

根据 Hcheung 的建议，将计数器设为 volatile 并从循环中移除 readEncoder();。
我稍微简化了 ISR readEncoder();

  1. volatile int counter = 0;
  2. [....] 
  3. void readEncoder() {
  4.   //if(digitalRead(encoder1)==HIGH){  //我们在这里是因为 digitalRead(encoder1) = HIGH!
  5.     if(digitalRead(encoder2)) counter++;
  6.     else counter--;
  7. }
英文:

as mentioned by Hcheung, make counter volatile and remove readEncoder(); from loop.
I simplify a bit ISR readEncoder();

  1. volatile int counter = 0;
  2. [....] 
  3. void readEncoder() {
  4.   //if(digitalRead(encoder1)==HIGH){  //we are precisely here because digitalRead(encoder1) = HIGH !
  5.     if(digitalRead(encoder2)) counter++;
  6.     else counter--;
  7. }

huangapple
  • 本文由 发表于 2023年2月19日 23:30:03
  • 转载请务必保留本文链接：https://go.coder-hub.com/75501220.html
  • arduino
  • arduino-c++
  • arduino-uno
匿名

发表评论

匿名网友

:?: :razz: :sad: :evil: :!: :smile: :oops: :grin: :eek: :shock: :???: :cool: :lol: :mad: :twisted: :roll: :wink: :idea: :arrow: :neutral: :cry: :mrgreen:

确定