Saving programs

John.Gray

I am using the Parallax PDB to run the SX28.· after I get done with the program, I select Run and Run, when I turn the PDB off I seem to lose the program.· What am I missing here?·

John

Bean

John,
If you are using the SX-Key for a clock source, when it loses power it does not provide a clock again when it is powered up.
You can use RUN->CLOCK to enable the SX-Key clock after it loses power.
Bean.

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Cheap 4-digit LED display with driver IC·www.hc4led.com


COMING SOON "SD DATA LOGGER" www.sddatalogger.com

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Paul Baker

Or plug the resonator in [noparse]:)[/noparse].

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1+1=10

John.Gray

Thanks, so unhook the Key and replace the resonator in and the program ran, once again thanks. What is the deal with the SX's internal speed?

Bean

You can run the SX at 4MHz, 1MHz, 128Khz or 32KHz. But the speed is not very stable, so you cannot use the internal osc for timing critial (serial) applications. I think it's about +/- 8%.

Bean.

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Cheap 4-digit LED display with driver IC·www.hc4led.com


COMING SOON "SD DATA LOGGER" www.sddatalogger.com

"I reject your reality, and substitute my own." Mythbusters
·