Code error not declared in this scope???

Using Arduino Programming Questions
1

A lot of code here pasted together. I was checking a lot of the forums and even though this may be a simple mistake I could use some help especially since i might add on to this to finish out my project. Basically in sort getting the error message was not declared in this scope init_registers() in the code below. Any help would be greatly appreciated!

RadioTEA5767-v1.ino (4.44 KB)

2

You have code not in a function. Where does setup() end, for instance ?

Auto Format is your friend. Use it often

3

You also forgot the "}" at the end of loop() and setFreq().

And I notice you don't initialize freqRead in setFreq().

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);


#include <Wire.h>
#include <TEA5767Radio.h>


TEA5767Radio radio = TEA5767Radio();


const byte FREQ_DIGITS = 5;
byte FREQUENCY[FREQ_DIGITS];
int freq_pos = 0;


#define FREQ_LOW 87
#define FREQ_INIT 94.9
#define FREQ_HIGH 108
char buf[14];
float curr_freq = 0;


#define PIN_IN_FREQ A1


#define NUM_DATABYTE 5
#define TEA5767_ADR 0x60
byte registers[NUM_DATABYTE];
byte registers_read[NUM_DATABYTE];


struct radio
{
  boolean rf;
  boolean blf;
  unsigned int pll;
  float freq;
  boolean stereo;
  byte lev;
  byte ci;
} radioTEA5767;


#define button 3
#define radio 5


int state = 0;
int old = 0;
int buttonPoll = 0;






void setup()
{
  {


    pinMode(button, INPUT);
    pinMode(radio, OUTPUT);


    digitalWrite(radio, HIGH);
  }


  radioTEA5767.freq = FREQ_INIT;
  Wire.begin();
  Serial.begin(9600);
  lcd.begin(20, 4);
  lcd.clear();
  lcd.setBacklight(HIGH);
  lcd.setCursor(7, 0);
  lcd.print("Joker's Grin");
  init_registers();
  lcd.setCursor(7, 1);
  lcd.print(printFreq(radioTEA5767.freq));
  lcd.setCursor ( 0, 2 );
  lcd.print("  20 cols, 4 rows   ");
  lcd.setCursor ( 0, 3 );
  lcd.print(" www.sunfounder.com ");




  void loop()


  {
    buttonPoll = digitalRead(button);
    if (buttonPoll == 1)
    {
      delay(50);
      buttonPoll = digitalRead(button);
      if (buttonPoll == 0)
      {
        state = old + 1;
      }
    }
    else
    {
      delay(100);
    }
    switch (state)
    {
      case 1:
        digitalWrite(radio, HIGH);
        old = state;
        break;
      case 2:
        digitalWrite(radio, LOW);
        old = state;
        break;


      default:
        digitalWrite(radio, LOW);
        old = 0;
        break;
    }
    {
      read_registers();
      Serial.println (printFreq(radioTEA5767.freq));
      delay(500);
    }




    // print frequency
    char *printFreq(float frq)
    {
      int integral_part = (int) frq;
      int decimal_part = (frq - integral_part) * 100;
      sprintf (buf, "%d.%d FM", integral_part, decimal_part);
      return buf;
    }




    // initialize registers
    void init_registers()
    {
      // set registers 1 && 2 (index 0 and 1)
      setPLL(radioTEA5767.freq);
      // set register 3 (index 2)
      registers[2] = 0xD0; // search up, mid volume, high side injection, stereo, no mute
      // set register 4 (index 3)
      registers[3] = 0x13; // eu band,clock 32768, stero noise cancelling on, ready flag SWPORT1
      // set register 5 (index 4)
      registers[4] = 0x00;
      write_registers();
      delay(10);
    }




    // read registers
    void read_registers()
    {
      byte c;


      Serial.println();
      Wire.requestFrom (TEA5767_ADR, NUM_DATABYTE);
      for (int i = 0; i < NUM_DATABYTE; i++)
        if (Wire.available())
        {
          c = Wire.read();
          //Serial.println(c, HEX);
          registers_read[i] = c;
        }
    }




    // write registers
    void write_registers()
    {
      Wire.beginTransmission(TEA5767_ADR);
      for (int i = 0; i < NUM_DATABYTE; i++)
      {
        Wire.write(registers[i]);
      }
      Wire.endTransmission();
    }




    float getRF()
    {
      boolean rf, blf;


      rf = false;
      blf = false;
      if (registers_read[0] & 0x80)
        rf = true;
      if (registers_read[0] & 0x40)
        blf = true;
      radioTEA5767.rf = rf;
      radioTEA5767.blf = blf;
      return rf;
    }


    unsigned int getPLL()
    {
      unsigned int pll;
      float frq;
      radioTEA5767.pll = 0;


      pll = registers_read[0] & 0x3F;
      pll = pll << 8;
      pll = pll + registers_read[1];
      radioTEA5767.pll = pll;


      frq = ((pll * 32768) / 4) - 225000.;
      radioTEA5767.freq = frq / 1000000;
      lcd.setCursor(7, 1);
      lcd.print(printFreq(radioTEA5767.freq));
      return pll;
    }


    unsigned int setPLL(float frq)
    {
      unsigned int pll;
      radioTEA5767.pll = 0;


      pll = (4 * (frq * 1000000 + 225000)) / 32768;
      registers[0] = pll >> 8;
      registers[1] = pll & 0x00FF;
      radioTEA5767.pll = pll;


      frq = ((pll * 32768) / 4) - 225000.;
      radioTEA5767.freq = frq / 1000000;
      lcd.setCursor(7, 1);
      lcd.print(printFreq(radioTEA5767.freq));
      write_registers();
      return pll;
    }


    void seekDown()
    {
      registers[0] |= 0x40; // SM = 1
      registers[2] &= 0x7F; // SUD = 0
      write_registers();
      getPLL();
      delay(500);
    }


    void seekUp()
    {
      registers[0] |= 0x40; // SM = 1
      registers[2] |= 0x80; // SUD = 1
      write_registers();
      getPLL();
      delay(500);
    }




    void setFreq()
    {
      float freqRead;
      const float step = (FREQ_HIGH - FREQ_LOW) / 1024.;
      float freqSet = 0;


      // read analog input from A1
      // output from potientemeter in 0...1023
      for (int i = 0; i < 10; i++)
        freqRead += analogRead(PIN_IN_FREQ);
      freqRead /= 10;
      freqSet = FREQ_LOW + (step * freqRead);
      if (abs(freqSet - radioTEA5767.freq) > 0.1)
      {
        setPLL(freqSet);
      }