On Fri, May 2, 2025 at 09:20 AM, Cheng Fei Phung wrote:
Umm, your simulation is a .DC sweep.? .DC sweeps can't oscillate.
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Where is the crystal?? Nothing stands out as being the crystal.? If it is there, I apologize.? Please help us by pointing it out.
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Did you upload the wrong schematic by accident?
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When you get to the point of running .TRAN simulations, try it first with .TRAN ... STARTUP and a very long simulation time (10 or 1000 seconds instead of 10 microseconds).? If that doesn't work, then try .TRAN ... UIC.? If it still won't oscillate, try adding specific sources of transients (PULSE sources) into the circuit, to kick-start it.? But first I think you need to add a crystal, and make sure that it has good parameters for a high-Q crystal.
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Andy
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