CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
delay_cycles( )
Syntax:
delay_cycles (count)
Parameters: count - a constant 1-255
Returns:
Function:
undefined
Creates code to perform a delay of the specified number of instruction clocks
(1-255). An instruction clock is equal to four oscillator clocks.
The delay time may be longer than requested if an interrupt is serviced during
the delay. The time spent in the ISR does not count toward the delay time.
Availability:
Requires:
Examples:
Example Files:
Also See:
All devices
Nothing
delay_cycles( 1 ); // Same as a NOP
delay_cycles(25); // At 20 mhz a 5us delay
ex_cust.c
delay_us(), delay_ms()
delay_ms( )
Syntax:
delay_ms (time)
Parameters: time - a variable 0-65535(int16) or a constant 0-65535
Note: Previous compiler versions ignored the upper byte of an int16, now the
upper byte affects the time.
Returns:
Function:
undefined
This function will create code to perform a delay of the specified length. Time
is specified in milliseconds. This function works by executing a precise
number of instructions to cause the requested delay. It does not use any
timers. If interrupts are enabled the time spent in an interrupt routine is not
counted toward the time.
The delay time may be longer than requested if an interrupt is serviced during
the delay. The time spent in the ISR does not count toward the delay time.
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