First steps

As I wrote in recent post in this post I would like to describe progress in my activities.
So, let's start.
During the recent week I have worked  on following periferials:
- Digital to analog converter
- USART to communication with PC
- Timer_3 to generating PWM
- Timer_1 to triggering DAC.

Now, I can generate sine or PWM signal by using PC. I have wrote short program in order to set sine frequency or pulse and frequency of PWM.

Below I add picture which show results of my work.

As you see I have to improve quality of sine signal. This signal is obtained directly on on output of processor. I must design analog filter to mitigate edge of generated signal.
Maximum frequency which I obtained  is up to 75 kHz when I sampling this signal with frequency 0.5 MHz.  In this case by using DAC on processor frequency more than 75 kHz is impossible.

Plan for next week:
Firstly I will design analog filter.
I will try start design PCB for this project (maybe only schematics)
I will add more signals ( i.e. triangular)