5.2.6 5-byte Config Bits Registers with Clock Switching
Also includes Fail-Safe Clock
5.2.6.1 Introduction
The Configuration settings allow the user to select the oscillators, reset sources, clock switching and memory protection from the several options available on the device. They are latched in place at the power-up and also after programming of the device.
5.2.6.2 Supported Device Families
PIC16(L)F188xx |
5.2.6.3 Required Header Files:
#include "mcc_generated_files/config_bits.h"
5.2.6.4 Sample Code
//CONFIG1
#pragma config FEXTOSC = ECH // External Oscillator mode selection bits->EC above 8MHz; PFM set to high power
#pragma config RSTOSC = EXT1X // Power-up default value for COSC bits->EXTOSC operating per FEXTOSC bits
#pragma config CLKOUTEN = OFF // Clock Out Enable bit->CLKOUT function is disabled; i/o or oscillator function on OSC2
#pragma config CSWEN = ON // Clock Switch Enable bit->Writing to NOSC and NDIV is allowed
#pragma config FCMEN = ON // Fail-Safe Clock Monitor Enable bit->FSCM timer enabled
//CONFIG2
#pragma config MCLRE = ON // Master Clear Enable bit->MCLR pin is Master Clear function
#pragma config PWRTE = OFF // Power-up Timer Enable bit->PWRT disabled
#pragma config LPBOREN = OFF // Low-Power BOR enable bit->ULPBOR disabled
#pragma config BOREN = ON // Brown-out reset enable bits->Brown-out Reset Enabled, SBOREN bit is ignored
#pragma config BORV = LO // Brown-out Reset Voltage Selection->Brown-out Reset Voltage (VBOR) set to 1.9V on LF, and 2.45V on F Devices
#pragma config ZCD = OFF // Zero-cross detect disable->Zero-cross detect circuit is disabled at POR.
#pragma config PPS1WAY = ON // Peripheral Pin Select one-way control->The PPSLOCK bit can be cleared and set only once in software
#pragma config STVREN = ON // Stack Overflow/Underflow Reset Enable bit->Stack Overflow or Underflow will cause a reset
#pragma config DEBUG = OFF // Background Debugger->Background Debugger disabled
//CONFIG3
#pragma config WDTCPS = WDTCPS_31 // WDT Period Select bits->Divider ratio 1:65536; software control of WDTPS
#pragma config WDTE = OFF // WDT operating mode->WDT Disabled, SWDTEN is ignored
#pragma config WDTCWS = WDTCWS_7 // WDT Window Select bits->window always open (100%); software control; keyed access not required
#pragma config WDTCCS = SC // WDT input clock selector->Software Control
//CONFIG4
#pragma config WRT = OFF // UserNVM self-write protection bits->Write protection off
#pragma config SCANE = available // Scanner Enable bit->Scanner module is available for use
#pragma config LVP = ON // Low Voltage Programming Enable bit->Low Voltage programming enabled. MCLR/Vpp pin function is MCLR.
//CONFIG5
#pragma config CP = OFF // UserNVM Program memory code protection bit->Program Memory code protection disabled
#pragma config CPD = OFF // DataNVM code protection bit->Data EEPROM code protection disabled
5.2.6.5 Module Documentation
5.2.6.5.1 CONFIGBITS Driver
This file contains the API prototype for the Configuration Bits driver.
Module description
This file contains the API prototype for the Configuration Bits driver.
5.2.6.5.2 System Driver
This file contains the API prototype for the System Driver.
Module description
This file contains the API prototype for the System Driver.
Functions
void SYSTEM_Initialize (void)
Initializes the system module. This routine is called only once during system initialization, before calling other APIs.
Function Documentation
SYSTEM_Initialize()
void SYSTEM_Initialize (void )
Initializes the system module. This routine is called only once during system initialization, before calling other APIs.
None. |
None. |
5.2.6.6 File Documentation
5.2.6.6.1 source/config_bits.c File Reference
This file contains the API Implementation for the Device Configuration Bits driver.
Detailed Description
This file contains the API Implementation for the Device Configuration Bits driver.
Configuration Bits Generated Driver Source File
5.2.6.6.2 source/config_bits.h File Reference
#include "../system/clock.h"
Detailed Description
Configuration Bits Generated Driver Header File
5.2.6.6.3 source/system.c File Reference
This file contains the API implementation for the System driver.
#include "../system.h"
Functions
void SYSTEM_Initialize (void)
Initializes the system module. This routine is called only once during system initialization, before calling other APIs.
Detailed Description
This file contains the API implementation for the System driver.
System Driver Source File
5.2.6.6.4 source/system.h File Reference
#include <xc.h> #include <stdint.h> #include <stdbool.h> #include "config_bits.h" #include "../system/clock.h" #include "../system/pins.h" #include "../system/interrupt.h"
Functions
void SYSTEM_Initialize (void)
Initializes the system module. This routine is called only once during system initialization, before calling other APIs.
Detailed Description
System Driver Header File