119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/**
|
|
* \file
|
|
*
|
|
* \brief SAM Serial Peripheral Interface Driver
|
|
*
|
|
* Copyright (C) 2012-2015 Atmel Corporation. All rights reserved.
|
|
*
|
|
* \asf_license_start
|
|
*
|
|
* \page License
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. The name of Atmel may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* 4. This software may only be redistributed and used in connection with an
|
|
* Atmel microcontroller product.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
|
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* \asf_license_stop
|
|
*
|
|
*/
|
|
/*
|
|
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
|
|
*/
|
|
|
|
#ifndef SERCOM_H_INCLUDED
|
|
#define SERCOM_H_INCLUDED
|
|
|
|
#include <compiler.h>
|
|
#include <system.h>
|
|
#include <clock.h>
|
|
#include <system_interrupt.h>
|
|
#include "sercom_pinout.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* SERCOM modules should share same slow GCLK channel ID */
|
|
#define SERCOM_GCLK_ID SERCOM0_GCLK_ID_SLOW
|
|
|
|
#if (0x1ff >= REV_SERCOM)
|
|
# define FEATURE_SERCOM_SYNCBUSY_SCHEME_VERSION_1
|
|
#elif (0x400 >= REV_SERCOM)
|
|
# define FEATURE_SERCOM_SYNCBUSY_SCHEME_VERSION_2
|
|
#else
|
|
# error "Unknown SYNCBUSY scheme for this SERCOM revision"
|
|
#endif
|
|
|
|
/**
|
|
* \brief sercom asynchronous operation mode
|
|
*
|
|
* Select sercom asynchronous operation mode
|
|
*/
|
|
enum sercom_asynchronous_operation_mode {
|
|
SERCOM_ASYNC_OPERATION_MODE_ARITHMETIC = 0,
|
|
SERCOM_ASYNC_OPERATION_MODE_FRACTIONAL,
|
|
};
|
|
|
|
/**
|
|
* \brief sercom asynchronous samples per bit
|
|
*
|
|
* Select number of samples per bit
|
|
*/
|
|
enum sercom_asynchronous_sample_num {
|
|
SERCOM_ASYNC_SAMPLE_NUM_3 = 3,
|
|
SERCOM_ASYNC_SAMPLE_NUM_8 = 8,
|
|
SERCOM_ASYNC_SAMPLE_NUM_16 = 16,
|
|
};
|
|
|
|
enum status_code sercom_set_gclk_generator(
|
|
const enum gclk_generator generator_source,
|
|
const bool force_change);
|
|
|
|
enum status_code _sercom_get_sync_baud_val(
|
|
const uint32_t baudrate,
|
|
const uint32_t external_clock,
|
|
uint16_t *const baudval);
|
|
|
|
enum status_code _sercom_get_async_baud_val(
|
|
const uint32_t baudrate,
|
|
const uint32_t peripheral_clock,
|
|
uint16_t *const baudval,
|
|
enum sercom_asynchronous_operation_mode mode,
|
|
enum sercom_asynchronous_sample_num sample_num);
|
|
|
|
uint32_t _sercom_get_default_pad(
|
|
Sercom *const sercom_module,
|
|
const uint8_t pad);
|
|
|
|
uint8_t _sercom_get_sercom_inst_index(
|
|
Sercom *const sercom_instance);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif //__SERCOM_H_INCLUDED
|