RE: How to Generate 3 MHz Clock Signal?

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11/04/00 11:57
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#6206 - RE: How to Generate 3 MHz Clock Signal?

Hi Yehuda,

I assume, you use a 12MHz crystal and a CMOS prescaler e.g 74HC93. After the 2. stage you have 12 / 4 = 3MHz.
Use XTAL2 to drive the clock of the 74HC93. Its reset line connect to a port pin. So you can synchronize the prescaler.

On 12Mhz you can only generate a baud rate up to 4800 baud. Otherwise use a 24MHz crystal for 9600 baud and the 3. stage of the 74HC93 for the 3MHz signal.

Peter

List of 8 messages in thread

Topic Author Date
How to Generate 3 MHz Clock Signal?              01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?              01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?              01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?              01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?              01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?              01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?              01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?              01/01/70 00:00

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Topic	Author	Date
How to Generate 3 MHz Clock Signal?		01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?		01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?		01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?		01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?		01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?		01/01/70 00:00
RE: How to Generate 3 MHz Clock Signal?		01/01/70 00:00
*RE: How to Generate 3 MHz Clock Signal?*		01/01/70 00:00