dfll.c File Reference

Chip-specific DFLL implementation.

Copyright (c) 2010-2018 Microchip Technology Inc. and its subsidiaries.

#include <compiler.h>
#include <dfll.h>

Macros
#define	dfll_write_reg(reg, value)

Functions
Interaction with the DFLL hardware
void	dfll_enable_open_loop (const struct dfll_config *cfg, unsigned int dfll_id)
	Activate the configuration cfg and enable DFLL dfll_id in open-loop mode. More...
void	dfll_disable_open_loop (unsigned int dfll_id)
	Disable the DFLL identified by dfll_id. More...
void	dfll_enable_closed_loop (const struct dfll_config *cfg, unsigned int dfll_id)
	Activate the configuration cfg and enable DFLL dfll_id in closed-loop mode. More...
void	dfll_disable_closed_loop (unsigned int dfll_id)
	Disable the DFLL identified by dfll_id. More...
void	dfll_enable_config_defaults (unsigned int dfll_id)
	Enable the dfll with the default configuration. More...

#define dfll_write_reg	(		reg,
			value
	)

Value:

do {                                                                   \
        while (!(AVR32_SCIF.pclksr & AVR32_SCIF_DFLL0RDY_MASK));        \
		irqflags_t ATPASTE2(dfll_flags, __LINE__) = cpu_irq_save();     \
        AVR32_SCIF.unlock = \
                (AVR32_SCIF_UNLOCK_KEY_VALUE << AVR32_SCIF_UNLOCK_KEY_OFFSET) |\
                AVR32_SCIF_##reg; \
        *(volatile uint32_t *)(AVR32_SCIF_ADDRESS + AVR32_SCIF_##reg)   \
                = (value);                                     \
		cpu_irq_restore(ATPASTE2(dfll_flags, __LINE__));                \
    } while (0)

Referenced by dfll_disable_closed_loop(), dfll_disable_open_loop(), dfll_enable_closed_loop(), and dfll_enable_open_loop().