Contents
Can a function generator create a PWM waveform?
To create a PWM waveform that is a product of a dynamic signal, you will need a function generator with arbitrary waveform capability or a built-in PWM function . A typical arbitrary waveform generator can hold 16k to 64k points and produce a signal with 12 or 14-bits of amplitude accuracy.
How does the DMA trigger the PWM duty cycle?
Lastly, we can use the DMA & Timer to periodically trigger the DMA unit so that it moves a sample data point from the lookup table stored in memory to the PWM duty cycle control register (CCRx).
How does raising the fpwm affect the DAC?
And also keep in mind that raising the FPWM will degrade the final DAC’s resolution. As you can see from the formula down below. This indicates that raising the FPWM will decrease its resolution at any value for timer clock FCLK, and therefore the DAC’s resolution decreases as well.
Which is the best way to use a DMA?
This method is the best way to achieve the task without any CPU intervention. The DMA can also be configured to operate in the circular mode so that it wraps around the lookup table every time it reaches the end of the table.
How to easily create an arbitrary waveform without programming?
With modern AWGs, creating an arbitrary waveform no longer has to be looked upon with doom and gloom. This application note covers how to create an arb from scratch using Excel and then transfer it to an AWG and to capture a waveform from an oscilloscope and then transfer it to an AWG.
How does the Arduino Due arbitrary wave generator work?
Arbitrary waves can be drawn, edited, saved, opened and uploaded to the Due via USB, or the Due can run alone controlled by pots & switches. This now runs on Linux as well as Windows. Analogue wave max freq: 100kHz.
How can arbitrary waves be uploaded to due?
Arbitrary waves can be drawn, edited, saved, opened and uploaded to the Due via USB, or the Due can run alone controlled by pots & switches. This now runs on Linux as well as Windows.