krishna

Most recent activity

• Out of memory while appending to array!!!!

  in JavaScript • 9 years

  

  Hi Gordon,
  in this project we are trying transmit GPS data on "NRF"... this is the script which i am using.

  var data=command.test();
  var arr = [];
  data+=command.gps();
  
  eval(data);
  eval(Modvar.nrf());
  Serial2.setup(9600);
  Serial5.setup(9600);
  Serial5.on('data', function (data) { print(+data); });
  function onInit(){nrf.init([0,0,0,0,2],[0,0,0,0,1­]);}
  onInit();
  setInterval(function() {
    nrf.masterHandler();
  //  print(process.memory());
  }, 50);
  
  function nrf_print(data){
  
   // var i =nrf.sendString("\n"+data);
    print("result :"+data);
     
  }
  
  
  //eval(command.gps());
  
  var gps =ConnectGps(Serial2, function(data) {
  
     if(data.tag == "GGA")
     {
       console.log("\r\n lat:" +data.lat);
       console.log("\r\n lon:" +data.lon);
       console.log("\r\n fix:" +data.fix); 
  
       // lat
       arr[6] =  parseInt(data.lat[0],10)*10 +  parseInt(data.lat[1],10);
       arr[7] =  parseInt(data.lat[3],10)*10 +  parseInt(data.lat[4],10);
       arr[8] =  parseInt(data.lat[5],10)*10 +  parseInt(data.lat[6],10);
  
       // lon
       arr[9] =  parseInt(data.lon[0],10)*10 +  parseInt(data.lon[1],10);
       arr[10] =  parseInt(data.lon[3],10)*10 +  parseInt(data.lon[4],10);
       arr[11] =  parseInt(data.lon[5],10)*10 +  parseInt(data.lon[6],10);
     }
  
  
   else if(data.tag == "RMC")
    {
  
      console.log("\r\n time:" +data.time);
      console.log("\r\n date:" +data.date);
      console.log("\r\n speed:" +data.speed);
  	console.log("\r\n valid:" +data.valid);
  	console.log("\r\n course:" +data.course);
  
      // time  
      arr[0] =  parseInt(data.time[0],10)*10 +  parseInt(data.time[1],10);
      arr[1] =  parseInt(data.time[3],10)*10 +  parseInt(data.time[4],10);
      arr[2] =  parseInt(data.time[7],10)*10 +  parseInt(data.time[8],10);
  
      // date
      arr[3] =  parseInt(data.date[0],10)*10 +  parseInt(data.date[1],10);
      arr[4] =  parseInt(data.date[3],10)*10 +  parseInt(data.date[4],10);
      arr[5] =  parseInt(data.date[7],10)*10 +  parseInt(data.date[8],10);
  
      // valid
      arr[12] = data.valid[0];
  
      // speed 
      arr[13] = parseInt(data.speed,10);
      nrf_print(arr);
    }
     
  });
  

  in this

  nrf_print(arr);
  

  if i changed this one to static data like nrf_print("Helloworld"); there is no problem with memory... i think this "arr "array is creating some problem...

  Thanks
  Vishnu

• size of memory

  in General • 9 years

  

  Thanks for reply...!!

• size of memory

  @krishna started

  • 4 comments
  • 1,867 views

  @krishna replied
• DS1307 real time clock

  in Interfacing • 9 years

  

  Iam using STM32F103VCT6 espruino board,
  with espruino_1v77.
  still the result was all zeros.
  Thanks for reply....!!!

• DS1307 real time clock

  @krishna started

  • 14 comments
  • 4,989 views

  @krishna replied
• size of memory

  in General • 9 years

  

  How much the size of memory available to use in espruino(STM32F103VCT6) board...??

• DS1307 real time clock

  in Interfacing • 9 years

  

  yes it will help full to me.
  but,
  I tried this but the result was all zeros

• DS1307 real time clock

  in Interfacing • 9 years

  

  yes i can..
  but how many times can i do the read and write operations to the AT24 series EEPROM?

• DS1307 real time clock

  in Interfacing • 9 years

  

  ya i knw that but i have to make use of NVRAM.
  thanks for your reply...!!

• DS1307 real time clock

  in Interfacing • 9 years

  

  can any body give me the sample code for DS1307??