You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
2.0 KiB
51 lines
2.0 KiB
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2013, 2014 Damien P. George
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include "dma.h"
|
|
|
|
// use this for OwnAddress1 to configure I2C in master mode
|
|
#define PYB_I2C_MASTER_ADDRESS (0xfe)
|
|
|
|
typedef struct _pyb_i2c_obj_t {
|
|
mp_obj_base_t base;
|
|
I2C_HandleTypeDef *i2c;
|
|
const dma_descr_t *tx_dma_descr;
|
|
const dma_descr_t *rx_dma_descr;
|
|
bool *use_dma;
|
|
} pyb_i2c_obj_t;
|
|
|
|
extern I2C_HandleTypeDef I2CHandle1;
|
|
extern I2C_HandleTypeDef I2CHandle2;
|
|
extern I2C_HandleTypeDef I2CHandle3;
|
|
extern const mp_obj_type_t pyb_i2c_type;
|
|
extern const pyb_i2c_obj_t pyb_i2c_obj[4];
|
|
|
|
void i2c_init0(void);
|
|
void i2c_init(I2C_HandleTypeDef *i2c);
|
|
void i2c_init_freq(const pyb_i2c_obj_t *self, mp_int_t freq);
|
|
uint32_t i2c_get_baudrate(I2C_InitTypeDef *init);
|
|
void i2c_ev_irq_handler(mp_uint_t i2c_id);
|
|
void i2c_er_irq_handler(mp_uint_t i2c_id);
|
|
|