Pre-Processor
pin to output the clock.
fast_start some chips allow the chip to begin execution using an internal clock until
the primary clock is stable.
lock some chips can prevent the oscillator type from being changed at run time by
the software.
USB or USB_FULL for devices with a built-in USB peripheral. When used with the
type=speed option the compiler will set the correct configuration bits for the USB
peripheral to operate at Full-Speed.
USB_LOW for devices with a built-in USB peripheral. When used with the
type=speed option the compiler will set the correct configuration bits for the USB
peripheral to operate at Low-Speed.
Also See: delay_ms(), delay_us()
#USE DYNAMIC_MEMORY
Syntax:
Elements:
Purpose:
#USE DYNAMIC_MEMORY
None
This pre-processor directive instructs the compiler to create the
_DYNAMIC_HEAD object. _DYNAMIC_HEAD is the location where the first free
space is allocated.
Examples: #USE DYNAMIC_MEMORY
void main ( ){
}
Example
Files:
Also See:
None
#USE FAST_IO
Syntax:
#USE FAST_IO ( port )
Elements: port is A, B, C, D, E, F, G, H, J or ALL
Purpose:
Affects how the compiler will generate code for input and output instructions that
follow. This directive takes effect until another #use xxxx_IO directive is
123
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