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Altera_Forum's avatar
Altera_Forum
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8 years ago

Standart quartz oscillator

i connect standart oscillator ALTUFM_OSC osc( .oscena(1'b1), .osc(clk))

i count 6 000 000 by counter. 


begin
counter = counter+ 1'b1;
if(counter == const_data)
 begin
 signal = ~signal;
 counter = 25'b0; 
end

LED blinks once per second.

Is it means, that frequency of quartz oscillator is 6MHz (instead of 50MHz)?

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    8 years ago

    --- Quote Start ---

    Is it means, that frequency of quartz oscillator is 6MHz (instead of 50MHz)?

    --- Quote End ---

    Seems to fit well the ALTUFM user guide. Did you ever looked into it? The MAX II/V internal oscillator is no quartz oscillator, btw.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    8 years ago

    --- Quote Start ---

    Did you ever looked into it?

    --- Quote End ---

    Great idea, thanks