i2c_slave.h (1593B)
- /* Copyright (C) 2019 Elia Ritterbusch
- +
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
- /* Library made by: g4lvanix
- * GitHub repository: https://github.com/g4lvanix/I2C-slave-lib
- Info: Inititate the library by giving the required address.
- Read or write to the necessary buffer according to the opperation.
- */
- #pragma once
- #include "compiler_support.h"
- #ifndef I2C_SLAVE_REG_COUNT
- # if defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
- # include "transport.h"
- # define I2C_SLAVE_REG_COUNT sizeof(split_shared_memory_t)
- # else // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
- # define I2C_SLAVE_REG_COUNT 30
- # endif // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
- #endif // I2C_SLAVE_REG_COUNT
- STATIC_ASSERT(I2C_SLAVE_REG_COUNT < 256, "I2C target registers must be single byte");
- extern volatile uint8_t i2c_slave_reg[I2C_SLAVE_REG_COUNT];
- void i2c_slave_init(uint8_t address);
- void i2c_slave_stop(void);