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  VS Arduino › Visual Micro › Microchip Studio (Atmel Studio 7) › AtmelStudio6/7+Arduino 1.8.0+VM: Delays when using DallasTemp Lib
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Normal Topic AtmelStudio6/7+Arduino 1.8.0+VM: Delays when using DallasTemp Lib (Read 2946 times)
acsg
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AtmelStudio6/7+Arduino 1.8.0+VM: Delays when using DallasTemp Lib
Jan 5th, 2017 at 9:54am
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Using Dallastemp 3.7.7 lib:

Compiling with AS+VM+AR1.8 : long delays in Dallastemp library
Compiling same sketch directly in AR1.8: no delays
« Last Edit: Jan 5th, 2017 at 2:52pm by acsg »  
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Tim@Visual Micro
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Re: AS 6.2 with Arduino 1.8.0 :Sketch works very slow when VM compiles
Reply #1 - Jan 5th, 2017 at 12:08pm
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Hi,

Have you got he toolbar set to "Release" or "Debug"? Can you please make sure it is set to "Release" and then upload. Confirm if all works in the same way as the Arduino IDE thanks?

Thanks

The AS6.2 version of visual micro is quite old now and was produced long before arduino 1.8 which has only been released in the past week or so.

For some time there has been a version of Visual Micro for the free Visual Studio community version such as VS2017 and that is recommended. There is also a version for atmel studio 7 which is currently up to arduino 1.6.9 and will shortly be released for arduino 1.8

There is a lot of new and useful functionality in more recent Visual Micro versions. It's a free upgrade for you so I recommend it and also recommend Visual Studio 2017 with C++. 
  
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Re: AS 6.2 with Arduino 1.8.0 :Sketch works very slow when VM compiles
Reply #2 - Jan 5th, 2017 at 12:43pm
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Debug or release in AS6.2 or AS7: same effect.
Compiling with AR1.8 = no delays; 
Compiling with AS+VM: 2sec delay per call in the DallasTemperature 3.7.7 library:


void DallasTemperature::blockTillConversionComplete(uint8_t bitResolution, const uint8_t* deviceAddress){
    
    int delms = millisToWaitForConversion(bitResolution);
    if (deviceAddress != NULL && checkForConversion && !parasite){
        unsigned long now = millis();
        while(!isConversionAvailable(deviceAddress) && (millis() - delms < now));
    } else {
        delay(delms);
    }    
}

As I poll my DS18B20 sensors every sec, I don't have to wait for the "temp conversion", so I disabled this part of the library and it works normal now.

But why does VM and AR do not compile same?
« Last Edit: Jan 5th, 2017 at 2:33pm by acsg »  
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