redefinition of void setup hatası
  • /*
    * A simple single freq AD9850 Arduino test script
    * Original AD9851 DDS sketch by Andrew Smallbone at www.rocketnumbernine.com
    * Modified for testing the inexpensive AD9850 ebay DDS modules
    * Pictures and pinouts at nr8o.dhlpilotcentral.com
    * 9850 datasheet at http://www.analog.com/static/imported-files/data_sheets/AD9850.pdf
    * Use freely
    */

    #define W_CLK 8 // Pin 8 - connect to AD9850 module word load clock pin (CLK)
    #define FQ_UD 9 // Pin 9 - connect to freq update pin (FQ)
    #define DATA 10 // Pin 10 - connect to serial data load pin (DATA)
    #define RESET 11 // Pin 11 - connect to reset pin (RST).

    #define pulseHigh(pin) {digitalWrite(pin, HIGH); digitalWrite(pin, LOW); }

    // transfers a byte, a bit at a time, LSB first to the 9850 via serial DATA line
    void tfr_byte(byte data)
    {
    for (int i=0; i<8; i++, data>>=1) {
    digitalWrite(DATA, data & 0x01);
    pulseHigh(W_CLK); //after each bit sent, CLK is pulsed high
    }
    }

    // frequency calc from datasheet page 8 = * /2^32
    void sendFrequency(double frequency) {
    int32_t freq = frequency * 4294967295/125000000; // note 125 MHz clock on 9850
    for (int b=0; b<4; b++, freq>>=8) {
    tfr_byte(freq & 0xFF);
    }
    tfr_byte(0x000); // Final control byte, all 0 for 9850 chip
    pulseHigh(FQ_UD); // Done! Should see output
    }

    void setup() {
    // configure arduino data pins for output
    pinMode(FQ_UD, OUTPUT);
    pinMode(W_CLK, OUTPUT);
    pinMode(DATA, OUTPUT);
    pinMode(RESET, OUTPUT);

    pulseHigh(RESET);
    pulseHigh(W_CLK);
    pulseHigh(FQ_UD); // this pulse enables serial mode - Datasheet page 12 figure 10
    }

    void loop() {
    sendFrequency(10.e6);
    delay (1000);
    sendFrequency(10.01e6); // freq
    delay(1000);
    }
  • redefition void setup'ta hata veriyor neden bilen var mı
  • Derlediğimde herhangi bir hata almadım.
    1.6.5 ide sürümüm.
  • 1.8.3 ide sorun yok

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