sysclk_opt.c File Reference

Chip-specific system clock management functions.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>
#include <sysclk.h>
#include <osc.h>
#include <pll.h>

Functions
void	sysclk_disable_usb_opt (void)
	Disable clock for the USB module. More...
void	sysclk_enable_usb_opt (uint8_t freq)
	Enable clock for the USB module. More...
void	sysclk_init_opt (void)

void sysclk_disable_usb_opt

(

void

)

Disable clock for the USB module.

References ccp_write_io().

void sysclk_enable_usb_opt

(

uint8_t

freq

)

Enable clock for the USB module.

Precondition

CONFIG_USBCLK_SOURCE must be defined.

Parameters

freq	The required USB clock frequency in MHz: 6 for 6 MHz 48 for 48 MHz

References Assert, ccp_write_io(), sysclk_enable_module(), SYSCLK_PORT_GEN, and SYSCLK_USB.

void sysclk_init_opt

(

void

)

References ccp_write_io(), CONFIG_SYSCLK_PSADIV, CONFIG_SYSCLK_PSBCDIV, CONFIG_SYSCLK_SOURCE, nvm_get_production_signature_row_offset, nvm_read_production_signature_row(), osc_enable(), OSC_ID_RC32MHZ, osc_wait_ready(), and sysclk_set_prescalers().