How to write a C program about square waves in DAC0832

Send data 0xff for a period of time, send 0x00 for a while, and repeat the operation.

Output square wave, no need for 0832.

Any interface pin of the microcontroller itself can output a square wave.

Wouldn't it be nice to use two delays???

Use the DAC0832 to create a signal generator that can generate rectangular, triangular and sawtooth waves. The requirement can be boiled down to using a microcontroller to control the data sent to the DAC: the rectangular wave method is: adjustable resistance AD microcontroller.

Only character-based data can be displayed, that is, only frequency, amplitude, and other data can be displayed.

2. DAC0832 is driven by an 8-bit bus, in order to ensure the smoothness of the output waveform, an interrupt timer is required, and the sampling output rate of a waveform data is generally set to 1ms.

3. It is relatively simple to output the square wave, which is to send 00, ff data. For sine waves, a forward selected wave fix** is formed by excel with 1000 8-bit data. The frequency is changed by sampling.

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Did you put the output part of the operation?

Yes, this method will not produce errors in the compiler, but the square wave is not like this, you are a triangle wave, and the square wave is generated by high and low levels.

This is a sawtooth wave program, while(1).

Send it to me

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#include

#include

#define dac0832 xbyte[0x7fff]void dealy()

void main()

Bus controlled, single buffer mode. Splice selection, WR to WR1, P0 to D10-17, WR2, XFER to ground. Draw your own picture.