Timer problem

[imanpakii]

Posted on April 05, 2013 at 03:40

Hi guys

I want to do an experience with stm32f4.

I want to simulate AM(amplitude modulation).I want to use 168 MHz as a carrier and generate the data in 100 khz. and modulate this 2 waves together.this action like i put my 100KHz in input on AND Gate and put 168 MHz in another input of AND Gate. But i want to know if I can do that with stm32f4 timers.And i have modulated signal in one pin on stm32f4.

thank you

    

[Tesla DeLorean]

Posted on April 05, 2013 at 05:32

Not so much, the fastest signal you can get out of the part is 84 MHz, arguably you might be able to get 100 MHz, but only by running the CPU at that speed.

I could see some ways of modulating a faster counter in software, and by slaving one counter against another, but perhaps not at as high a frequency as you'd like.