#ifndef I2C_H #define I2C_H #include #ifndef F_CPU #define F_CPU 16000000UL #endif #define I2C_READ 1 #define I2C_WRITE 0 #define I2C_ACK 1 #define I2C_NACK 0 #define SLAVE_BUFFER_SIZE 0x10 // i2c SCL clock frequency #define SCL_CLOCK 800000L extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE]; void i2c_master_init(void); uint8_t i2c_master_start(uint8_t address); void i2c_master_stop(void); uint8_t i2c_master_write(uint8_t data); uint8_t i2c_master_read(int); void i2c_reset_state(void); void i2c_slave_init(uint8_t address); static inline unsigned char i2c_start_read(unsigned char addr) { return i2c_master_start((addr << 1) | I2C_READ); } static inline unsigned char i2c_start_write(unsigned char addr) { return i2c_master_start((addr << 1) | I2C_WRITE); } // from SSD1306 scrips extern unsigned char i2c_rep_start(unsigned char addr); extern void i2c_start_wait(unsigned char addr); extern unsigned char i2c_readAck(void); extern unsigned char i2c_readNak(void); extern unsigned char i2c_read(unsigned char ack); #define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak(); #endif td class='sub right'>
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/*
 *  yosys -- Yosys Open SYnthesis Suite
 *
 *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
 *  
 *  Permission to use, copy, modify, and/or distribute this software for any
 *  purpose with or without fee is hereby granted, provided that the above
 *  copyright notice and this permission notice appear in all copies.
 *  
 *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 *  ---
 *
 *  A simple and straightforward verilog backend.
 *
 *  Note that RTLIL processes can't always be mapped easily to a Verilog
 *  process. Therefore this frontend should only be used to export a
 *  Verilog netlist (i.e. after the "proc" pass has converted all processes
 *  to logic networks and registers).
 *
 */

#ifndef VERILOG_BACKEND_H
#define VERILOG_BACKEND_H

#include "kernel/rtlil.h"
#include <stdio.h>

namespace VERILOG_BACKEND {
	void verilog_backend(FILE *f, std::vector<std::string> args, RTLIL::Design *design);
}

#endif