amereshadow
Joined: 16 May 2008 Posts: 5
|
generating MHz frequencies |
Posted: Sun Jun 01, 2008 12:59 am |
|
|
hi there, after my previous problem, solved after a few days (now ducati is happy and my laurea thesis too) i have another question
i was testing a circuit received by a friend of mine, an RF circuit which used an inverting Schmitt trigger (74hc14) 2 xtal and some passives to generate two square wave @ 2~3MHz; then the frequency is divided by two using a counter and taking the least significant bit. at this point i have two frequencies at a bout 1,2288 and 1.5 MHz.
because i didn't have some components (56pf cap and 2.4576MHz xtal) i trying to generate the two freq (1.5 and 1.2) with a pic, or two pic. i can dedicate an entire pic to a single frequency generation, but how? PWM or software? with a 877a at 10MHz theoretically i could generate both the frequencies, or no?
tnx
pietro |
|