I've found a few references to a 250ns clock pulse related to srlatch and comparators here: http://www.picaxeforum.co.uk/showthread.php?24179-Tutorial-on-using-SRLatch-as-a-555-timer/page2
What I'm interested in is using that signal for an external interval timer that will operate in the microsecond range. I don't believe I can get the picaxe to do that directly (working with a 28x2 at the moment), but it would be great if I could. What I have in mind is to capture that clock and use a countdown timer to give me microsecond increments.
Can someone help me out as to how I can get that clock to show up on a (any) pin? Or alternately, how I can get microsecond length pulses directly from the picaxe.
The second part of my question is dependent on the first being possible. If I run the 28x2 at the 64MHz speed with an external 16MHz resonator, how will that affect the timing of this particular signal?
Thanks in advance!
John
What I'm interested in is using that signal for an external interval timer that will operate in the microsecond range. I don't believe I can get the picaxe to do that directly (working with a 28x2 at the moment), but it would be great if I could. What I have in mind is to capture that clock and use a countdown timer to give me microsecond increments.
Can someone help me out as to how I can get that clock to show up on a (any) pin? Or alternately, how I can get microsecond length pulses directly from the picaxe.
The second part of my question is dependent on the first being possible. If I run the 28x2 at the 64MHz speed with an external 16MHz resonator, how will that affect the timing of this particular signal?
Thanks in advance!
John