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ZBasic System Library
105
ZX Microcontroller Family
Most ZX processors contain a single analog-to-digital converter thus allowing only one conversion to be
performed at a time.  The conversion process takes approximately 220uS during which time the calling
task will be awaiting conversion completion.
Compatibility
Although the BasicX manual indicates that that it is not necessary to configure the pin to be an input
before calling, tests indicate that it is, in fact, necessary to do so.  Consequently, the behavior of this
implementation matches the actual behavior of the BasicX platform.  The second and third forms are not
available in BasicX mode.
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