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Reduce noise with sleep function
6 years 6 months ago #1034
by ucfanrg
Reduce noise with sleep function was created by ucfanrg
Hi there,
I've stopped the project for while because I am stuck with an issue that prevents me from moving forward, and it's the annoying hiss you hear from the Microcontroller.
I Understand that when the Microcontroller is running, you get a lot of noise from all the component around. There is a way to fix this on AVR system (like the Arduino UNO) because it has a sleep function that lets the ADC run but shuts down the CPU and the clocks, and when the ADC is ready, it wakes up.
I am struggling to find a good tutorial about Sleep function with interrupts on ARM Cortex M3.
Do you guys have any experience with that?
I've stopped the project for while because I am stuck with an issue that prevents me from moving forward, and it's the annoying hiss you hear from the Microcontroller.
I Understand that when the Microcontroller is running, you get a lot of noise from all the component around. There is a way to fix this on AVR system (like the Arduino UNO) because it has a sleep function that lets the ADC run but shuts down the CPU and the clocks, and when the ADC is ready, it wakes up.
I am struggling to find a good tutorial about Sleep function with interrupts on ARM Cortex M3.
Do you guys have any experience with that?
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6 years 6 months ago #1036
by Ray
Replied by Ray on topic Reduce noise with sleep function
Hi, it is a good idea, I did not know about it, I have been checking around and there are some talks in the Arduino DUE forum:
forum.arduino.cc/index.php?topic=181543.0
I will try to see if I can make something to run.
Anyway try to use a good power supply (not just a USB connection), it makes a huge difference.
forum.arduino.cc/index.php?topic=181543.0
I will try to see if I can make something to run.
Anyway try to use a good power supply (not just a USB connection), it makes a huge difference.
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6 years 6 months ago #1037
by ucfanrg
Rendering Error in layout Message/Item: array_keys(): Argument #1 ($array) must be of type array, null given. Please enable debug mode for more information.
Replied by ucfanrg on topic Reduce noise with sleep function
Rendering Error in layout Message/Item: array_keys(): Argument #1 ($array) must be of type array, null given. Please enable debug mode for more information.
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