TRANSMITTER CONTROLLER. NEEDS TO LATCH RELAY AS SET WHEN NO SERIAL DATA IS ENTERED.

[wa3tfs 0]

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THIS CODE WORKS IN ALL WAYS EXCEPT WHEN IT LOOPS BACK TO GET MORE DATA, AND NONE IS BEING SENT, IT TURNS OFF THE RELAY THAT HAS BEEN SET ON.  i NEED TO KEEP THE RELAY SET WHEN NO SERIAL INPUT DATA IS THERE.  WHEN DIFFERENT DATA, OR THE SAME DATA IS INPUT, IT AGAIN WORKS AS EXPECTED UNTIL LOOPING BACK TO LOOK FOR MORE DATA.  THE RESULT, IS THAT THE RELAY IS JUST PULSED ON UNTIL THE NEXT LOOP THROUGH.  CAN ANYONE HELP ME TO GET THE RELAYS TO STAY ON WHEN SELECTED UNTIL NEW DATA IS INPUT FOR A DIFFERENT ONE? 

 

#include <msp430g2553.h>
/* Updated filter switching routine to make sure unwanted filters off
 * Version 2.2 to use lower LO injection for higher RF output at upper frequencies Sep 6 2017
 * This version uses same BFO frequency for USB and LSB 
 * fine tune seperately for frequency accuracy for below 14 Mhz and 14 Mhz and above
 * transmit controller program for th WA3TFS 11212016 COMPANION SSB TRANSMITTER
 * modified Dec 2016 to add functions to control second dds for BFO
 * modified april 2 2015 by WA3TFS to convert arduino to launchpad
 * DDS frequency set up and control program using launchpad and 430G2553
 * If using ver 1.4 or below board, jumper RXD and TXD diagonally
 * WA3TFS Added serial function to load frequency and control of 5 low pass filters
 */
#define W_CLK 7        // Pin 7 - connect to AD9850 module word load clock pin (CLK)
#define FQ_UD 10       // Pin 10 - connect to freq update pin (FQ_UD)
#define DATA 9         // Pin 9 - connect to serial data load pin (DATA)
#define RESET 8        // Pin 8 - connect to reset pin (RST).
#define pulseHigh(pin) {digitalWrite(pin, HIGH); digitalWrite(pin, LOW); }
#define ONESXTY 6      // select 160 meter band filter PIN 6
#define EIGHTY 5       // select 80 meter band filter PIN 5
#define FORTY 11       //select 40 meter band filter PIN 11
#define TWENTY 15      //select 20 meter and above filter PIN 15
#define FIFTEEN 18     //SELECT 15 meter and above filter PIN 18
#define TOP 19         //SELECT 10 METER LPF PIN 19
#define B_CLK 12       //clock BFO DDS PIN 12
#define BQ_UD 13       //load BFO DDS PIN 13
#define BATA 14        //BFO frequency PIN 14
#define BESET 2        //BFO reset PIN 2

long bfo;
long frequency;
long oldfreq;
long val;
long val2;
long val3;
long val4;
long bfreq;

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

// 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 = <sys clock> * <frequency tuning word>/2^32

void sendFrequency(double frequency) {

  int32_t freq = frequency * 34.35973836;  // 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

}

// frequency calc from datasheet page 8 = <sys clock> * <BFO DDS frequency tuning word>/2^32
void sendBfo(double bfo) {

  int32_t bfreq = bfo * 34.35973836;  // note 125 MHz clock on 9850V

  for (int e=0; e<4; e++, bfreq>>=8) {
    tfr_bfobyte(bfreq & 0xFF);
  }
  tfr_bfobyte(0x000);   // Final control byte, all 0 for 9850 chip
  pulseHigh(BQ_UD);  // Done!  Should see BFO output
}

//added this code to talk serially
void setup() {
  Serial.begin(9600);
  // configure launchpad data pins for output
  pinMode(FQ_UD, OUTPUT);
  pinMode(W_CLK, OUTPUT);
  pinMode(DATA, OUTPUT);
  pinMode(RESET, OUTPUT);
  pinMode(ONESXTY, OUTPUT);
  pinMode(EIGHTY, OUTPUT);
  pinMode(FORTY, OUTPUT);
  pinMode(TWENTY, OUTPUT);
  pinMode(FIFTEEN, OUTPUT);
  pinMode(TOP, OUTPUT);  
  pinMode(B_CLK, OUTPUT);
  pinMode(BQ_UD, OUTPUT);
  pinMode(BATA, OUTPUT);
  pinMode(BESET, OUTPUT);
  digitalWrite(ONESXTY, LOW);  //SET UP INITIAL STATE OF CONTROL PINS
  digitalWrite(EIGHTY, LOW);
  digitalWrite(FORTY, LOW);
  digitalWrite(TWENTY, LOW);
  digitalWrite(TOP, LOW);
  digitalWrite(FIFTEEN, LOW);   //ON START UP ACTIVATE NO FILTER
  pulseHigh(RESET);  //main dds reset
  pulseHigh(W_CLK);  //main dds clock
  pulseHigh(FQ_UD);  // this pulse enables updates main dds 
  pulseHigh(BESET);  //bfo dds reset
  pulseHigh(B_CLK);  //bfo dds clock
  pulseHigh(BQ_UD);  // this pulse updates bfo dds28500000

}

//added this below to input required frequencies and offsets
//this also selects the proper low pass filter and BFO for the frequencies programmed
void loop()
{

  if (Serial.available()) {
    frequency = Serial.parseInt();
    //if (frequency == oldfreq) goto loop1;

    if (frequency<1000) goto loop1;

    if (frequency>1500000 && frequency<2100000)
    {

      digitalWrite(ONESXTY, HIGH);   //IF TRUE TURN ON THIS FILTER
      Serial.println("transmit accepted");
      //delay (10000);  //test relay active

    }
    else
    { 
      digitalWrite(ONESXTY, LOW);  //TURN OFF OTHER LOW PASS FILTERS
      digitalWrite(EIGHTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FORTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TWENTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FIFTEEN, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TOP, LOW);   //IF TRUE TURN OFF THIS FILTER
    }
    if (frequency>2100001 && frequency<4000000)
    {
      digitalWrite(EIGHTY, HIGH);   //IF TRUE TURN ON THIS FILTER 
      Serial.println("transmit accepted");

    }

    else
    { 
      digitalWrite(EIGHTY, LOW);   //TURN OFF OTHER LOW PASS FILTERS
      digitalWrite(ONESXTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FORTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TWENTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FIFTEEN, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TOP, LOW);   //IF TRUE TURN OFF THIS FILTER

    }
    if (frequency>4000001 && frequency<7400000)
    {
      digitalWrite(FORTY, HIGH);   //IF TRUE TURN ON THIS FILTER 
      Serial.println("transmit accepted");

    }
    else
    {
      digitalWrite(FORTY, LOW); //TURN OFF OTHER LOW PASS FILTERS
      digitalWrite(EIGHTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(ONESXTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TWENTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FIFTEEN, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TOP, LOW);   //IF TRUE TURN OFF THIS FILTER

    }
    if (frequency>7400001 && frequency<14500000)
    {
      digitalWrite(TWENTY, HIGH);   //IF TRUE TURN ON THIS FILTER
      Serial.println("transmit accepted");

    }
    else
    { 
      digitalWrite(TWENTY, LOW);   //TURN OFF OTHER LOW PASS FILTERS
      digitalWrite(EIGHTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FORTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(ONESXTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FIFTEEN, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TOP, LOW);   //IF TRUE TURN OFF THIS FILTER

    }
    if (frequency>14400001 && frequency<28000000)
    {
      digitalWrite(FIFTEEN, HIGH);   //IF TRUE TURN ON THIS FILTER 
      Serial.println("transmit accepted");

    }
    else
    { 
      digitalWrite(FIFTEEN, LOW);  //TURN OFF OTHER LOW PASS FILTERS
      digitalWrite(EIGHTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FORTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TWENTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(ONESXTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TOP, LOW);   //IF TRUE TURN OFF THIS FILTER
    }
    if (frequency>28000001 && frequency<35000000)
    {
      digitalWrite(TOP, HIGH);   //IF TRUE TURN ON THIS FILTER 
      Serial.println("transmit accepted");

    }
    else
    { 
      digitalWrite(TOP, LOW);  //TURN OFF OTHER LOW PASS FILTERS
      digitalWrite(EIGHTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FORTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(TWENTY, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(FIFTEEN, LOW);   //IF TRUE TURN OFF THIS FILTER
      digitalWrite(ONESXTY, LOW);   //IF TRUE TURN OFF THIS FILTER
    }
    oldfreq == frequency;
    if (frequency<(7400000))
    { 
      bfo = (8996900); //LSB bfo injection frequency 8996600
      frequency = (frequency + 100); //add or subtranct to set exact transmit freq 250
    }
    else
    {
      bfo = (9000250); //test bfo offset replace next line
      //bfo = (9000000); //USB bfo injection frequency
      frequency = (frequency + 70); //add or subtract to set exact transmit freq (195)
    }
    if (frequency<(13999000))//changed to get lo lower
    {
      frequency = (frequency + bfo);// create local oscillator injection offset (350) from bfo to correct transmit frequency
    }
    else
    {
      frequency = (frequency + bfo);// set higher frequency injection offset for higher RF output at upper frequencies (15,14,12 and 10 meters)
    }
    bfo = bfo;
    sendFrequency(frequency);  // send LO frequency to DDS ctrl.Offset 175 corrects frequency
    //Serial.print(frequency);  //print actual value to monitor to debug offset not displayed
    //Serial.print(bfo);  //print actual value to monitor to debug
    sendBfo(bfo);  // send BFO frequency to DDS ctrl.

loop1:;

  }
}

[Rei Vilo 695]

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