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_CONFIG Parameters: Where are they documented?

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micro571

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I am trying to setup a PIC18F4455 with 48MHz external oscillator. I don't want any fancy things. I'll just be using I/O pins and the UART. No USB or memory protection, etc.

Where can I find what the config parameters mean?

I am using the Hi-Tech C compiler.

I copied these from a tutorial:
Code:
__CONFIG(1,HSPLL & USBPLL & PLLDIV5 & CPUDIV1 & FCMDIS & IESODIS);
__CONFIG(2,VREGEN & PWRTDIS & BOREN & BORV20 & WDTDIS & WDTPS32K);
__CONFIG(3,CCP2RC1 & PBADDIS & LPT1DIS & MCLREN);
__CONFIG(4,STVREN & LVPDIS & XINSTDIS & DEBUGDIS);
__CONFIG(5,UNPROTECT);
__CONFIG(6,UNPROTECT);
__CONFIG(7,UNPROTECT);

But when I search the 18F4455 datasheet for the terms, they don't appear.
 
For starters it can't use a 48mhz external oscillator.
I always get the configures from mpasm out of the .inc file
Code:
;==========================================================================
;
;   IMPORTANT: For the PIC18 devices, the __CONFIG directive has been
;              superseded by the CONFIG directive.  The following settings
;              are available for this device.
;
;   PLL Prescaler Selection bits:
;     PLLDIV = 1           No prescale (4 MHz oscillator input drives PLL directly)
;     PLLDIV = 2           Divide by 2 (8 MHz oscillator input)
;     PLLDIV = 3           Divide by 3 (12 MHz oscillator input)
;     PLLDIV = 4           Divide by 4 (16 MHz oscillator input)
;     PLLDIV = 5           Divide by 5 (20 MHz oscillator input)
;     PLLDIV = 6           Divide by 6 (24 MHz oscillator input)
;     PLLDIV = 10          Divide by 10 (40 MHz oscillator input)
;     PLLDIV = 12          Divide by 12 (48 MHz oscillator input)
;
;   CPU System Clock Postscaler:
;     CPUDIV = OSC1_PLL2   [OSC1/OSC2 Src: /1][96 MHz PLL Src: /2]
;     CPUDIV = OSC2_PLL3   [OSC1/OSC2 Src: /2][96 MHz PLL Src: /3]
;     CPUDIV = OSC3_PLL4   [OSC1/OSC2 Src: /3][96 MHz PLL Src: /4]
;     CPUDIV = OSC4_PLL6   [OSC1/OSC2 Src: /4][96 MHz PLL Src: /6]
;
;   USB Clock Selection bit (used in Full Speed USB mode only; UCFG:FSEN = 1):
;     USBDIV = 1           USB clock source comes directly from the primary oscillator block with no postscale
;     USBDIV = 2           USB clock source comes from the 96 MHz PLL divided by 2
;
;   Oscillator Selection bits:
;     FOSC = XT_XT         XT oscillator, XT used by USB
;     FOSC = XTPLL_XT      XT oscillator, PLL enabled, XT used by USB
;     FOSC = ECIO_EC       External clock, port function on RA6, EC used by USB
;     FOSC = EC_EC         External clock, CLKOUT on RA6, EC used by USB
;     FOSC = ECPLLIO_EC    External clock, PLL enabled, port function on RA6, EC used by USB
;     FOSC = ECPLL_EC      External clock, PLL enabled, CLKOUT on RA6, EC used by USB
;     FOSC = INTOSCIO_EC   Internal oscillator, port function on RA6, EC used by USB
;     FOSC = INTOSC_EC     Internal oscillator, CLKOUT on RA6, EC used by USB
;     FOSC = INTOSC_XT     Internal oscillator, XT used by USB
;     FOSC = INTOSC_HS     Internal oscillator, HS used by USB
;     FOSC = HS            HS oscillator, HS used by USB
;     FOSC = HSPLL_HS      HS oscillator, PLL enabled, HS used by USB
;
;   Fail-Safe Clock Monitor Enable bit:
;     FCMEN = OFF          Fail-Safe Clock Monitor disabled
;     FCMEN = ON           Fail-Safe Clock Monitor enabled
;
;   Internal/External Oscillator Switchover bit:
;     IESO = OFF           Oscillator Switchover mode disabled
;     IESO = ON            Oscillator Switchover mode enabled
;
;   Power-up Timer Enable bit:
;     PWRT = ON            PWRT enabled
;     PWRT = OFF           PWRT disabled
;
;   Brown-out Reset Enable bits:
;     BOR = OFF            Brown-out Reset disabled in hardware and software
;     BOR = SOFT           Brown-out Reset enabled and controlled by software (SBOREN is enabled)
;     BOR = ON_ACTIVE      Brown-out Reset enabled in hardware only and disabled in Sleep mode (SBOREN is disabled)
;     BOR = ON             Brown-out Reset enabled in hardware only (SBOREN is disabled)
;
;   Brown-out Voltage bits:
;     BORV = 0             Maximum setting
;     BORV = 1             
;     BORV = 2             
;     BORV = 3             Minimum setting
;
;   USB Voltage Regulator Enable bit:
;     VREGEN = OFF         USB voltage regulator disabled
;     VREGEN = ON          USB voltage regulator enabled
;
;   Watchdog Timer Enable bit:
;     WDT = OFF            HW Disabled - SW Controlled
;     WDT = ON             HW Enabled - SW Disabled
;
;   Watchdog Timer Postscale Select bits:
;     WDTPS = 1            1:1
;     WDTPS = 2            1:2
;     WDTPS = 4            1:4
;     WDTPS = 8            1:8
;     WDTPS = 16           1:16
;     WDTPS = 32           1:32
;     WDTPS = 64           1:64
;     WDTPS = 128          1:128
;     WDTPS = 256          1:256
;     WDTPS = 512          1:512
;     WDTPS = 1024         1:1024
;     WDTPS = 2048         1:2048
;     WDTPS = 4096         1:4096
;     WDTPS = 8192         1:8192
;     WDTPS = 16384        1:16384
;     WDTPS = 32768        1:32768
;
;   MCLR Pin Enable bit:
;     MCLRE = OFF          RE3 input pin enabled; MCLR disabled
;     MCLRE = ON           MCLR pin enabled; RE3 input pin disabled
;
;   Low-Power Timer 1 Oscillator Enable bit:
;     LPT1OSC = OFF        Timer1 configured for higher power operation
;     LPT1OSC = ON         Timer1 configured for low-power operation
;
;   PORTB A/D Enable bit:
;     PBADEN = OFF         PORTB<4:0> pins are configured as digital I/O on Reset
;     PBADEN = ON          PORTB<4:0> pins are configured as analog input channels on Reset
;
;   CCP2 MUX bit:
;     CCP2MX = OFF         CCP2 input/output is multiplexed with RB3
;     CCP2MX = ON          CCP2 input/output is multiplexed with RC1
;
;   Stack Full/Underflow Reset Enable bit:
;     STVREN = OFF         Stack full/underflow will not cause Reset
;     STVREN = ON          Stack full/underflow will cause Reset
;
;   Single-Supply ICSP Enable bit:
;     LVP = OFF            Single-Supply ICSP disabled
;     LVP = ON             Single-Supply ICSP enabled
;
;   Dedicated In-Circuit Debug/Programming Port (ICPORT) Enable bit:
;     ICPRT = OFF          ICPORT disabled
;     ICPRT = ON           ICPORT enabled
;
;   Extended Instruction Set Enable bit:
;     XINST = OFF          Instruction set extension and Indexed Addressing mode disabled (Legacy mode)
;     XINST = ON           Instruction set extension and Indexed Addressing mode enabled
;
;   Background Debugger Enable bit:
;     DEBUG = ON           Background debugger enabled, RB6 and RB7 are dedicated to In-Circuit Debug
;     DEBUG = OFF          Background debugger disabled, RB6 and RB7 configured as general purpose I/O pins
;
;   Code Protection bit Block 0:
;     CP0 = ON             Block 0 (000800-001FFFh) code-protected
;     CP0 = OFF            Block 0 (000800-001FFFh) not code-protected
;
;   Code Protection bit Block 1:
;     CP1 = ON             Block 1 (002000-003FFFh) code-protected
;     CP1 = OFF            Block 1 (002000-003FFFh) not code-protected
;
;   Code Protection bit Block 2:
;     CP2 = ON             Block 2 (004000-005FFFh) code-protected
;     CP2 = OFF            Block 2 (004000-005FFFh) not code-protected
;
;   Boot Block Code Protection bit:
;     CPB = ON             Boot block (000000-0007FFh) code-protected
;     CPB = OFF            Boot block (000000-0007FFh) not code-protected
;
;   Data EEPROM Code Protection bit:
;     CPD = ON             Data EEPROM code-protected
;     CPD = OFF            Data EEPROM not code-protected
;
;   Write Protection bit Block 0:
;     WRT0 = ON            Block 0 (000800-001FFFh) write-protected
;     WRT0 = OFF           Block 0 (000800-001FFFh) not write-protected
;
;   Write Protection bit Block 1:
;     WRT1 = ON            Block 1 (002000-003FFFh) write-protected
;     WRT1 = OFF           Block 1 (002000-003FFFh) not write-protected
;
;   Write Protection bit Block 2:
;     WRT2 = ON            Block 2 (004000-005FFFh) write-protected
;     WRT2 = OFF           Block 2 (004000-005FFFh) not write-protected
;
;   Boot Block Write Protection bit:
;     WRTB = ON            Boot block (000000-0007FFh) write-protected
;     WRTB = OFF           Boot block (000000-0007FFh) not write-protected
;
;   Configuration Register Write Protection bit:
;     WRTC = ON            Configuration registers (300000-3000FFh) write-protected
;     WRTC = OFF           Configuration registers (300000-3000FFh) not write-protected
;
;   Data EEPROM Write Protection bit:
;     WRTD = ON            Data EEPROM write-protected
;     WRTD = OFF           Data EEPROM not write-protected
;
;   Table Read Protection bit Block 0:
;     EBTR0 = ON           Block 0 (000800-001FFFh) protected from table reads executed in other blocks
;     EBTR0 = OFF          Block 0 (000800-001FFFh) not protected from table reads executed in other blocks
;
;   Table Read Protection bit Block 1:
;     EBTR1 = ON           Block 1 (002000-003FFFh) protected from table reads executed in other blocks
;     EBTR1 = OFF          Block 1 (002000-003FFFh) not protected from table reads executed in other blocks
;
;   Table Read Protection bit Block 2:
;     EBTR2 = ON           Block 2 (004000-005FFFh) protected from table reads executed in other blocks
;     EBTR2 = OFF          Block 2 (004000-005FFFh) not protected from table reads executed in other blocks
;
;   Boot Block Table Read Protection:
;     EBTRB = ON           Boot block (000000-0007FFh) protected from table reads executed in other blocks
;     EBTRB = OFF          Boot block (000000-0007FFh) not protected from table reads executed in other blocks
;
;==========================================================================
;==========================================================================
;
;       Configuration Bits
;
;   NAME            Address
;   CONFIG1L        300000h
;   CONFIG1H        300001h
;   CONFIG2L        300002h
;   CONFIG2H        300003h
;   CONFIG3H        300005h
;   CONFIG4L        300006h
;   CONFIG5L        300008h
;   CONFIG5H        300009h
;   CONFIG6L        30000Ah
;   CONFIG6H        30000Bh
;   CONFIG7L        30000Ch
;   CONFIG7H        30000Dh
;
;==========================================================================

; The following is an assignment of address values for all of the
; configuration registers for the purpose of table reads
_CONFIG1L        EQU  H'300000'
_CONFIG1H        EQU  H'300001'
_CONFIG2L        EQU  H'300002'
_CONFIG2H        EQU  H'300003'
_CONFIG3H        EQU  H'300005'
_CONFIG4L        EQU  H'300006'
_CONFIG5L        EQU  H'300008'
_CONFIG5H        EQU  H'300009'
_CONFIG6L        EQU  H'30000A'
_CONFIG6H        EQU  H'30000B'
_CONFIG7L        EQU  H'30000C'
_CONFIG7H        EQU  H'30000D'

;----- CONFIG1L Options --------------------------------------------------
_PLLDIV_1_1L         EQU  H'F8'    ; No prescale (4 MHz oscillator input drives PLL directly)
_PLLDIV_2_1L         EQU  H'F9'    ; Divide by 2 (8 MHz oscillator input)
_PLLDIV_3_1L         EQU  H'FA'    ; Divide by 3 (12 MHz oscillator input)
_PLLDIV_4_1L         EQU  H'FB'    ; Divide by 4 (16 MHz oscillator input)
_PLLDIV_5_1L         EQU  H'FC'    ; Divide by 5 (20 MHz oscillator input)
_PLLDIV_6_1L         EQU  H'FD'    ; Divide by 6 (24 MHz oscillator input)
_PLLDIV_10_1L        EQU  H'FE'    ; Divide by 10 (40 MHz oscillator input)
_PLLDIV_12_1L        EQU  H'FF'    ; Divide by 12 (48 MHz oscillator input)

_CPUDIV_OSC1_PLL2_1L EQU  H'E7'    ; [OSC1/OSC2 Src: /1][96 MHz PLL Src: /2]
_CPUDIV_OSC2_PLL3_1L EQU  H'EF'    ; [OSC1/OSC2 Src: /2][96 MHz PLL Src: /3]
_CPUDIV_OSC3_PLL4_1L EQU  H'F7'    ; [OSC1/OSC2 Src: /3][96 MHz PLL Src: /4]
_CPUDIV_OSC4_PLL6_1L EQU  H'FF'    ; [OSC1/OSC2 Src: /4][96 MHz PLL Src: /6]

_USBDIV_1_1L         EQU  H'DF'    ; USB clock source comes directly from the primary oscillator block with no postscale
_USBDIV_2_1L         EQU  H'FF'    ; USB clock source comes from the 96 MHz PLL divided by 2

;----- CONFIG1H Options --------------------------------------------------
_FOSC_XT_XT_1H       EQU  H'F0'    ; XT oscillator, XT used by USB
_FOSC_XTPLL_XT_1H    EQU  H'F2'    ; XT oscillator, PLL enabled, XT used by USB
_FOSC_ECIO_EC_1H     EQU  H'F4'    ; External clock, port function on RA6, EC used by USB
_FOSC_EC_EC_1H       EQU  H'F5'    ; External clock, CLKOUT on RA6, EC used by USB
_FOSC_ECPLLIO_EC_1H  EQU  H'F6'    ; External clock, PLL enabled, port function on RA6, EC used by USB
_FOSC_ECPLL_EC_1H    EQU  H'F7'    ; External clock, PLL enabled, CLKOUT on RA6, EC used by USB
_FOSC_INTOSCIO_EC_1H EQU  H'F8'    ; Internal oscillator, port function on RA6, EC used by USB
_FOSC_INTOSC_EC_1H   EQU  H'F9'    ; Internal oscillator, CLKOUT on RA6, EC used by USB
_FOSC_INTOSC_XT_1H   EQU  H'FA'    ; Internal oscillator, XT used by USB
_FOSC_INTOSC_HS_1H   EQU  H'FB'    ; Internal oscillator, HS used by USB
_FOSC_HS_1H          EQU  H'FC'    ; HS oscillator, HS used by USB
_FOSC_HSPLL_HS_1H    EQU  H'FE'    ; HS oscillator, PLL enabled, HS used by USB

_FCMEN_OFF_1H        EQU  H'BF'    ; Fail-Safe Clock Monitor disabled
_FCMEN_ON_1H         EQU  H'FF'    ; Fail-Safe Clock Monitor enabled

_IESO_OFF_1H         EQU  H'7F'    ; Oscillator Switchover mode disabled
_IESO_ON_1H          EQU  H'FF'    ; Oscillator Switchover mode enabled

;----- CONFIG2L Options --------------------------------------------------
_PWRT_ON_2L          EQU  H'FE'    ; PWRT enabled
_PWRT_OFF_2L         EQU  H'FF'    ; PWRT disabled

_BOR_OFF_2L          EQU  H'F9'    ; Brown-out Reset disabled in hardware and software
_BOR_SOFT_2L         EQU  H'FB'    ; Brown-out Reset enabled and controlled by software (SBOREN is enabled)
_BOR_ON_ACTIVE_2L    EQU  H'FD'    ; Brown-out Reset enabled in hardware only and disabled in Sleep mode (SBOREN is disabled)
_BOR_ON_2L           EQU  H'FF'    ; Brown-out Reset enabled in hardware only (SBOREN is disabled)

_BORV_0_2L           EQU  H'E7'    ; Maximum setting
_BORV_1_2L           EQU  H'EF'    ; 
_BORV_2_2L           EQU  H'F7'    ; 
_BORV_3_2L           EQU  H'FF'    ; Minimum setting

_VREGEN_OFF_2L       EQU  H'DF'    ; USB voltage regulator disabled
_VREGEN_ON_2L        EQU  H'FF'    ; USB voltage regulator enabled

;----- CONFIG2H Options --------------------------------------------------
_WDT_OFF_2H          EQU  H'FE'    ; HW Disabled - SW Controlled
_WDT_ON_2H           EQU  H'FF'    ; HW Enabled - SW Disabled

_WDTPS_1_2H          EQU  H'E1'    ; 1:1
_WDTPS_2_2H          EQU  H'E3'    ; 1:2
_WDTPS_4_2H          EQU  H'E5'    ; 1:4
_WDTPS_8_2H          EQU  H'E7'    ; 1:8
_WDTPS_16_2H         EQU  H'E9'    ; 1:16
_WDTPS_32_2H         EQU  H'EB'    ; 1:32
_WDTPS_64_2H         EQU  H'ED'    ; 1:64
_WDTPS_128_2H        EQU  H'EF'    ; 1:128
_WDTPS_256_2H        EQU  H'F1'    ; 1:256
_WDTPS_512_2H        EQU  H'F3'    ; 1:512
_WDTPS_1024_2H       EQU  H'F5'    ; 1:1024
_WDTPS_2048_2H       EQU  H'F7'    ; 1:2048
_WDTPS_4096_2H       EQU  H'F9'    ; 1:4096
_WDTPS_8192_2H       EQU  H'FB'    ; 1:8192
_WDTPS_16384_2H      EQU  H'FD'    ; 1:16384
_WDTPS_32768_2H      EQU  H'FF'    ; 1:32768

;----- CONFIG3H Options --------------------------------------------------
_MCLRE_OFF_3H        EQU  H'7F'    ; RE3 input pin enabled; MCLR disabled
_MCLRE_ON_3H         EQU  H'FF'    ; MCLR pin enabled; RE3 input pin disabled

_LPT1OSC_OFF_3H      EQU  H'FB'    ; Timer1 configured for higher power operation
_LPT1OSC_ON_3H       EQU  H'FF'    ; Timer1 configured for low-power operation

_PBADEN_OFF_3H       EQU  H'FD'    ; PORTB<4:0> pins are configured as digital I/O on Reset
_PBADEN_ON_3H        EQU  H'FF'    ; PORTB<4:0> pins are configured as analog input channels on Reset

_CCP2MX_OFF_3H       EQU  H'FE'    ; CCP2 input/output is multiplexed with RB3
_CCP2MX_ON_3H        EQU  H'FF'    ; CCP2 input/output is multiplexed with RC1

;----- CONFIG4L Options --------------------------------------------------
_STVREN_OFF_4L       EQU  H'FE'    ; Stack full/underflow will not cause Reset
_STVREN_ON_4L        EQU  H'FF'    ; Stack full/underflow will cause Reset

_LVP_OFF_4L          EQU  H'FB'    ; Single-Supply ICSP disabled
_LVP_ON_4L           EQU  H'FF'    ; Single-Supply ICSP enabled

_ICPRT_OFF_4L        EQU  H'DF'    ; ICPORT disabled
_ICPRT_ON_4L         EQU  H'FF'    ; ICPORT enabled

_XINST_OFF_4L        EQU  H'BF'    ; Instruction set extension and Indexed Addressing mode disabled (Legacy mode)
_XINST_ON_4L         EQU  H'FF'    ; Instruction set extension and Indexed Addressing mode enabled

_DEBUG_ON_4L         EQU  H'7F'    ; Background debugger enabled, RB6 and RB7 are dedicated to In-Circuit Debug
_DEBUG_OFF_4L        EQU  H'FF'    ; Background debugger disabled, RB6 and RB7 configured as general purpose I/O pins

;----- CONFIG5L Options --------------------------------------------------
_CP0_ON_5L           EQU  H'FE'    ; Block 0 (000800-001FFFh) code-protected
_CP0_OFF_5L          EQU  H'FF'    ; Block 0 (000800-001FFFh) not code-protected

_CP1_ON_5L           EQU  H'FD'    ; Block 1 (002000-003FFFh) code-protected
_CP1_OFF_5L          EQU  H'FF'    ; Block 1 (002000-003FFFh) not code-protected

_CP2_ON_5L           EQU  H'FB'    ; Block 2 (004000-005FFFh) code-protected
_CP2_OFF_5L          EQU  H'FF'    ; Block 2 (004000-005FFFh) not code-protected

;----- CONFIG5H Options --------------------------------------------------
_CPB_ON_5H           EQU  H'BF'    ; Boot block (000000-0007FFh) code-protected
_CPB_OFF_5H          EQU  H'FF'    ; Boot block (000000-0007FFh) not code-protected

_CPD_ON_5H           EQU  H'7F'    ; Data EEPROM code-protected
_CPD_OFF_5H          EQU  H'FF'    ; Data EEPROM not code-protected

;----- CONFIG6L Options --------------------------------------------------
_WRT0_ON_6L          EQU  H'FE'    ; Block 0 (000800-001FFFh) write-protected
_WRT0_OFF_6L         EQU  H'FF'    ; Block 0 (000800-001FFFh) not write-protected

_WRT1_ON_6L          EQU  H'FD'    ; Block 1 (002000-003FFFh) write-protected
_WRT1_OFF_6L         EQU  H'FF'    ; Block 1 (002000-003FFFh) not write-protected

_WRT2_ON_6L          EQU  H'FB'    ; Block 2 (004000-005FFFh) write-protected
_WRT2_OFF_6L         EQU  H'FF'    ; Block 2 (004000-005FFFh) not write-protected

;----- CONFIG6H Options --------------------------------------------------
_WRTB_ON_6H          EQU  H'BF'    ; Boot block (000000-0007FFh) write-protected
_WRTB_OFF_6H         EQU  H'FF'    ; Boot block (000000-0007FFh) not write-protected

_WRTC_ON_6H          EQU  H'DF'    ; Configuration registers (300000-3000FFh) write-protected
_WRTC_OFF_6H         EQU  H'FF'    ; Configuration registers (300000-3000FFh) not write-protected

_WRTD_ON_6H          EQU  H'7F'    ; Data EEPROM write-protected
_WRTD_OFF_6H         EQU  H'FF'    ; Data EEPROM not write-protected

;----- CONFIG7L Options --------------------------------------------------
_EBTR0_ON_7L         EQU  H'FE'    ; Block 0 (000800-001FFFh) protected from table reads executed in other blocks
_EBTR0_OFF_7L        EQU  H'FF'    ; Block 0 (000800-001FFFh) not protected from table reads executed in other blocks

_EBTR1_ON_7L         EQU  H'FD'    ; Block 1 (002000-003FFFh) protected from table reads executed in other blocks
_EBTR1_OFF_7L        EQU  H'FF'    ; Block 1 (002000-003FFFh) not protected from table reads executed in other blocks

_EBTR2_ON_7L         EQU  H'FB'    ; Block 2 (004000-005FFFh) protected from table reads executed in other blocks
_EBTR2_OFF_7L        EQU  H'FF'    ; Block 2 (004000-005FFFh) not protected from table reads executed in other blocks

;----- CONFIG7H Options --------------------------------------------------
_EBTRB_ON_7H         EQU  H'BF'    ; Boot block (000000-0007FFh) protected from table reads executed in other blocks
_EBTRB_OFF_7H        EQU  H'FF'    ; Boot block (000000-0007FFh) not protected from table reads executed in other blocks


_DEVID1          EQU  H'3FFFFE'
_DEVID2          EQU  H'3FFFFF'

_IDLOC0          EQU  H'200000'
_IDLOC1          EQU  H'200001'
_IDLOC2          EQU  H'200002'
_IDLOC3          EQU  H'200003'
_IDLOC4          EQU  H'200004'
_IDLOC5          EQU  H'200005'
_IDLOC6          EQU  H'200006'
_IDLOC7          EQU  H'200007'

        LIST
 
This is the configuration setting appendum from Microchip website.
 

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  • 51537A.pdf
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.inc file

I always used the .inc file. Found it enough to initialize the micro properly.
 
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