mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
0c337583b4
The default I2C device configuration allows to define up to two I2C devices `I2C_DEV(0)` and `I2C_DEV(1)`. `I2C_DEV(0)` is always defined if the I2C peripheral is enabled by the module `periph_spi`. The second I2C device `I2C_DEV(1)` is only defined if `I2C_DEV_1_USED` is defined by the board. This allows to use the default configuration with one or two I2C devices depending on whether other peripherals are enabled that would collide with the I2C devices.
82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2023 Gunar Schorcht <gunar@schorcht.net>
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup boards_common_gd32v
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief Default I2C configuration for GD32VF103 boards
|
|
*
|
|
* @author Gunar Schorcht <gunar@schorcht.net>
|
|
*/
|
|
|
|
#ifndef CFG_I2C_DEFAULT_H
|
|
#define CFG_I2C_DEFAULT_H
|
|
|
|
#include "periph_cpu.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @name I2C configuration
|
|
*
|
|
* @note This board may require external pullup resistors for i2c operation.
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Enable the second I2C device `I2C_DEV(1)` by default
|
|
*
|
|
*/
|
|
#ifndef I2C_DEV_1_USED
|
|
#define I2C_DEV_1_USED
|
|
#endif
|
|
|
|
/**
|
|
* @brief Default I2C device configuration
|
|
*
|
|
* The default I2C device configuration allows to define up to two I2C devices
|
|
* `I2C_DEV(0)` and `I2C_DEV(1)`. `I2C_DEV(0)` is always defined if the I2C
|
|
* peripheral is enabled by the module `periph_spi`. The second I2C device
|
|
* `I2C_DEV(1)` is only defined if `I2C_DEV_1_USED` is defined by the board.
|
|
* This allows to use the default configuration with one or two I2C devices
|
|
* depending on whether other peripherals are enabled that would collide with
|
|
* the I2C devices.
|
|
*/
|
|
static const i2c_conf_t i2c_config[] = {
|
|
{
|
|
.dev = I2C0,
|
|
.speed = I2C_SPEED_NORMAL,
|
|
.scl_pin = GPIO_PIN(PORT_B, 6),
|
|
.sda_pin = GPIO_PIN(PORT_B, 7),
|
|
.rcu_mask = RCU_APB1EN_I2C0EN_Msk,
|
|
.irqn = I2C0_EV_IRQn,
|
|
},
|
|
{
|
|
.dev = I2C1,
|
|
.speed = I2C_SPEED_NORMAL,
|
|
.scl_pin = GPIO_PIN(PORT_B, 10),
|
|
.sda_pin = GPIO_PIN(PORT_B, 11),
|
|
.rcu_mask = RCU_APB1EN_I2C1EN_Msk,
|
|
.irqn = I2C1_EV_IRQn,
|
|
}
|
|
};
|
|
|
|
#define I2C_NUMOF ARRAY_SIZE(i2c_config)
|
|
/** @} */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* CFG_I2C_DEFAULT_H */
|
|
/** @} */
|