/** @defgroup CRS_defines CRS Defines
*
* @brief STM32 Clock Recovery System: Defined Constants and Types
*
* @ingroup STM32_defines
*
* @version 1.0.0
*
* @date 5 Feb 2014
*
* LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2014 Frantisek Burian
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see .
*/
#ifndef LIBOPENCM3_CRS_H
#define LIBOPENCM3_CRS_H
/**@{*/
/*****************************************************************************/
/* Module definitions */
/*****************************************************************************/
#define CRS CRS_BASE
/*****************************************************************************/
/* Register definitions */
/*****************************************************************************/
#define CRS_CR MMIO32(CRS_BASE + 0x00)
#define CRS_CFGR MMIO32(CRS_BASE + 0x04)
#define CRS_ISR MMIO32(CRS_BASE + 0x08)
#define CRS_ICR MMIO32(CRS_BASE + 0x0c)
/*****************************************************************************/
/* Register values */
/*****************************************************************************/
/* CEC_CR Values ------------------------------------------------------------*/
#define CRS_CR_TRIM_SHIFT 8
#define CRS_CR_TRIM (0x3F << CRS_CR_TRIM_SHIFT)
#define CRS_CR_SWSYNC (1 << 7)
#define CRS_CR_AUTOTRIMEN (1 << 6)
#define CRS_CR_CEN (1 << 5)
#define CRS_CR_ESYNCIE (1 << 3)
#define CRS_CR_ERRIE (1 << 2)
#define CRS_CR_SYNCWARNIE (1 << 1)
#define CRS_CR_SYNCOKIE (1 << 0)
/* CEC_CFGR Values ----------------------------------------------------------*/
#define CRS_CFGR_SYNCPOL (1 << 31)
#define CRS_CFGR_SYNCSRC_SHIFT 28
#define CRS_CFGR_SYNCSRC (3 << CRS_CFGR_SYNCSRC_SHIFT)
#define CRS_CFGR_SYNCSRC_GPIO (0 << CRS_CFGR_SYNCSRC_SHIFT)
#define CRS_CFGR_SYNCSRC_LSE (1 << CRS_CFGR_SYNCSRC_SHIFT)
#define CRS_CFGR_SYNCSRC_USB_SOF (2 << CRS_CFGR_SYNCSRC_SHIFT)
#define CRS_CFGR_SYNCDIV_SHIFT 24
#define CRS_CFGR_SYNCDIV (7 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_NODIV (0 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_DIV2 (1 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_DIV4 (2 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_DIV8 (3 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_DIV16 (4 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_DIV32 (5 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_DIV64 (6 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_SYNCDIV_DIV128 (7 << CRS_CFGR_SYNCDIV_SHIFT)
#define CRS_CFGR_FELIM_SHIFT 16
#define CRS_CFGR_FELIM (0xFF << CRS_CFGR_FELIM_SHIFT)
#define CRS_CFGR_FELIM_VAL(x) ((x) << CRS_CFGR_FELIM_SHIFT)
#define CRS_CFGR_RELOAD_SHIFT 0
#define CRS_CFGR_RELOAD (0xFFFF << CRS_CFGR_RELOAD_SHIFT)
#define CRS_CFGR_RELOAD_VAL(x) ((x) << CRS_CFGR_RELOAD_SHIFT)
/* CEC_ISR Values -----------------------------------------------------------*/
#define CRS_ISR_FECAP_SHIFT 16
#define CRS_ISR_FECAP (0xFFFF << CRS_ISR_FECAP_SHIFT)
#define CRS_ISR_FEDIR (1 << 15)
#define CRS_ISR_TRIMOVF (1 << 10)
#define CRS_ISR_SYNCMISS (1 << 9)
#define CRS_ISR_SYNCERR (1 << 8)
#define CRS_ISR_ESYNCF (1 << 3)
#define CRS_ISR_ERRF (1 << 2)
#define CRS_ISR_SYNCWARNF (1 << 1)
#define CRS_ISR_SYNCOOKF (1 << 0)
/* CEC_ICR Values -----------------------------------------------------------*/
#define CRS_ICR_ESYNCC (1 << 3)
#define CRS_ICR_ERRC (1 << 2)
#define CRS_ICR_SYNCWARNC (1 << 1)
#define CRS_ICR_SYNCOKC (1 << 0)
/*****************************************************************************/
/* API definitions */
/*****************************************************************************/
/*****************************************************************************/
/* API Functions */
/*****************************************************************************/
BEGIN_DECLS
void crs_autotrim_usb_enable(void);
END_DECLS
/**@}*/
#endif