Hi All I am using two mechanisms for high sampling. 1. Using MicStreamC and changing the prescalar value inside MicP to ATM128_ADC_PRESCALE_32 and the gain value is set to 64. I create a buffer of 1000 samples and every time the buffer gets full I take the average and print it out. The problem is that the microphone does not seem to be responding or is not showing me sufficiently precise values. The average when I dont make a noise is around 500 ADC.. and even if I am clapping shouting (for long durations) it still shows me slightly *lower values like 497 etc. So I am not sure why this is so ?*
2. When I created the low level interfaces on my own using the sample SoundLocalizer example in Tinyos programming book, I am giving the microphone ADC a free run at the same prescale setup (there is a difference of some parameter being passed through getData as FALSE in that example which is suppose to cater to LEFT_ADJUSTMENT ) but when I compare the values that I am getting inside dataReady they respond well to sounds. This would work for me but I am just curious why the MicStream does not work. This way I would not have to recreate all the buffer code. If anyone can please tell me what setting inside MicSetting or MicP have I done wrong that it is not responding. Thanks a lot. SIncerely Akankshu Dhawan -- First they ignore you, then they laugh at you, then they fight you, then you win. - Mahatma Gandhi
_______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
