$CRYSTAL/de
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Revision as of 21:06, 15 February 2013
Contents |
= (**COPIED FROM ENGLISH PAGE**) === Action
Instruct the compiler to override the crystal frequency options setting.
Syntax
$CRYSTAL = var
Remarks
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var |
A numeric constant with the Frequency of the crystal. |
The frequency is selectable from the Options Compiler Communication. It is stored in a configuration file. The $CRYSTAL directive overrides this setting.
It is best to use the $CRYSTAL directive as the used crystal frequency is visible in your program that way.
Most new AVR chips have an internal oscillator that is enabled by default. Check the data sheet for the default value.
See also
$BAUD , BAUD , CONFIG CLOCKDIV
Example
$regfile = "m48def.dat" $crystal = 4000000 $baud = 19200 Config Com1 = Dummy , Synchrone = 0 , Parity = None , Stopbits = 1 , Databits = 8 , Clockpol = 0 Print "Hello world" End
| Languages | English • Deutsch |
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