CCS C Compiler Manual PCB / PCM / PCH

The pins must be specified with DI, DO, CLK or SPIx, all other options are
defaulted as indicated above.
Examples:
#use spi(DI=PIN_B1, DO=PIN_B0, CLK=PIN_B2, ENABLE=PIN_B4, BITS=16)
// uses software SPI
#use spi(FORCE_HW, BITS=16, stream=SPI_STREAM)
// uses hardware SPI and gives this stream the name SPI_STREAM
Example
Files:
Also See:
None
spi_xfer()
#use standard_io
Syntax:
Elements:
Purpose:
#USE STANDARD_IO (port)
port is A, B, C, D, E, F, G, H, J or ALL
This directive affects how the compiler will generate code for input and output
instructions that follow. This directive takes effect until another #USE XXX_IO directive
is encountered. The standard method of doing I/O will cause the compiler to generate
code to make an I/O pin either input or output every time it is used. On the 5X
processors this requires one byte of RAM for every port set to standard I/O.
Standard_io is the default I/O method for all ports.
When linking multiple compilation units be aware this directive only applies to the current
compilation unit.
Examples:
Example
Files:
Also See:
#use standard_io(A)
ex_cust.c
#USE FAST_IO, #USE FIXED_IO, General Purpose I/O
#use timer
Syntax:
Elements:
#USE TIMER (options)
TIMER=x
Sets the timer to use as the tick timer. x is a valid timer that the PIC has. Default
value is 1 for Timer 1.
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