Config Directive

The config directive allows the configuration bits, or fuses, to be specified in the assembly source file.

The directive has the following forms:

CONFIG setting = value
CONFIG register = literal_value

Here, setting is a configuration setting descriptor, e.g., WDT and value can be either a textual description of the desired state, e.g., OFF or a numerical value. Numerical values are subject to the same constraints as other numerical constant operands.

The register field is the name of a configuration or id-location register.

The available setting, register and value fields are documented in the chipinfo file relevant to your device (i.e. pic_chipinfo.html and pic18_chipinfo.html).

The following example shows a configuration register being programmed as a whole and programmed using the individual settings contained within that register.

; PIC18F67K22
; VREG Sleep Enable bit : Enabled
; LF-INTOSC Low-power Enable bit : LF-INTOSC in High-power mode during Sleep
; SOSC Power Selection and mode Configuration bits : High Power SOSC circuit selected
; Extended Instruction Set : Enabled
config RETEN = ON, INTOSCSEL = HIGH, SOSCSEL = HIGH, XINST = ON
; Alternatively
config CONFIG1L = 0x5D
; IDLOC @ 0x200000
config IDLOC0 = 0x15