Datavideo SE-500

Comments

• choonpoh Posts: 1

  March 2013

  zerodev wrote: »

  Does anyone have experience controlling one of these devices? I just looked up the protocol and it's a bit convoluted and unclear. I was hoping someone would have the basics coded (e.g. "Select Input 1") so that I wouldn't have to spend a few hours decoding the control protocol and then playing trial-and-error with the code.
  
  Thanks!

  
  
  Hi
  
  Do you have the control protocol? I am having problem figuring out with the checksum

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• ericmedley Posts: 4,177

  March 2013

  Post the protocol.

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• Auser Posts: 506

  March 2013

  If it's the same as the DN-500, this should work.
  

  define_function char CheckSum(char _cCommand[])
  {
  	stack_var		integer		_nCharacterIndex
  	stack_var		integer		_nBitIndex
  	stack_var		char			_cCheckSum
  	
  	for(_nCharacterIndex = 1; _nCharacterIndex <= length_array(_cCommand); _nCharacterIndex++)
  	{
  		for(_nBitIndex = 0; _nBitIndex < 8; _nBitIndex++)
  		{
  			if(_cCommand[_nCharacterIndex] & (1 << _nBitIndex))
  				_cCheckSum++
  		}
  	}
  	return _cCheckSum
  }
  

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