How to use stm32f407VE a waveform generator design, produce the sawtooth wave, amplitude between 3-5 v, variable frequency requirements, controlled by the analog input to realize continuous frequency change, need, a great god for help, thank you very much

CodePudding user response:

DAC data increasing data is the sawtooth wave and change the frequency by increasing the data rate

CodePudding user response:

The program can play out

CodePudding user response:

For programming is not understand, can only to modify the program

CodePudding user response:

Can the program to be typed, I have these programs don't know much about

CodePudding user response:

The waveform data stored in the array, a DMA output to the DAC, triggered by a counter, change the inside of the storage data waveform, the change can change the waveform frequency counter oh load values, the resources are used less, perfect

CodePudding user response:

Can use interrupt set frequency, according to a count in the interrupt USES HAL library DAC_SetValue () sets the output value, the waveform can be generated in advance an array of data can be read in the interrupt.