benortiz

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• 'Uncaught InternalError: Timeout on I2C Write BUSY' after save()

  @benortiz started

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• 'Uncaught InternalError: Timeout on I2C Write BUSY' after save()

  in Pico / Wifi / Original Espruino • 5 years, 1 month

  

  Gordon! Thank you so much for your detailed advice. The path with using "save on send" unfortunately did not work, but setting up the onInit() function like you suggested worked like a charm! And thanks for including the resource on Saving, I had not seen that yet. Very helpful.

• 'Uncaught InternalError: Timeout on I2C Write BUSY' after save()

  in Pico / Wifi / Original Espruino • 5 years, 1 month

  

  Hello,

  When I have my Wifi plugged in with USB and I load the code through the IDE, everything works fine. The moment I save() it breaks and I get the I2C error above. Where should I begin to hunt down what's causing the issue?

  Full code

  Excerpt of code that is raising an error

  function setup(){
    NEOPIXEL.write(B15, [0,0,0]);
    I2C2.setup({scl:B10,sda:B3});
  
    nfc = require("PN532").connect(I2C2);
    nfc.SAMConfig();
  
    setInterval(function() {
      nfc.findCards(function(card) {
        card = JSON.stringify(card);
        checkCard(card); 
        return;
      });
    }, 1000);
  
    spi = new SPI();
    spi.setup({mosi: B6 /* D1 */, sck:B5 /* D0 */});
    g = require("SSD1306").connectSPI(spi, A0 /* DC */, B7, start,{ height : 32 });
  }
  

  Full Error Message:

  Uncaught InternalError: Timeout on I2C Write BUSY
   at line 1 col 172
  ...sh(0);this.i2c.writeTo(36,b);b=this.i­2c.readFrom(36,6);b[4]&...
                                ^
  in function "cmd" called from line 1 col 18
  this.cmd([74,1,0]);var d=this;setTimeout(function(){var c=d....
                   ^
  in function "findCards" called from line 69 col 6
      });
       ^
  in function called from system
  

  I have also attached an image of the NFC chip I'm using. It is wired as follows:

  • NFC -> Espruino
    
  • GND -> -
    
  • VCC -> 3.3v
    
  • SDA -> B3
    
  • SCL -> B10
    
    

  I have looked at some of the Troubleshooting guides and they suggest:

  • Remove all console.log/print statements. I think I have done so.
    
  • Setting USB.setConsole() during onInit(). That changed nothing.
    
    

  Any pointers would be greatly appreciated, I'm very new to all of this. Thanks in advance!