PIC microcontroller CCS C language (#USE FIXED

Collect

#USE FIXED_IO

语法:#use fixed_io(port_outputs=pin.pin?)

port is A~G.

pin is one of the pins defined in the device.h file.

Purpose: Affects how the compiler generates input and output code, as described below. This instruction is valid until the next #use xxxx_io appears. Executing the method to set I/O will cause the compiler to generate code that makes the I/O either an input or an output each time it is used. The pin is programmed according to the information in the I/O direction register (the I/O direction register is actually implemented but not operated on), which will store a byte in the RAM used by standard I/O.

Example: #use fixed_io(a_outputs=PIN_A2,PIN_A3) //Set PINA2 and PIN_A3 as outputs

Keywords：CCS USE FIXED_IO Reference address：PIC microcontroller CCS C language (#USE FIXED_IO usage)

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