/* * Copyright 2020 Richard Titmuss (richard.titmuss@gmail.com) * * 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 2 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 <http://www.gnu.org/licenses/>. */ #pragma once #define IODIRA 0x00 #define IODIRB 0x01 #define GPPUA 0x0C #define GPPUB 0x0D #define GPIOA 0x12 #define GPIOB 0x13 typedef int16_t mcp23018_status_t; void msp23018_init(void); bool mcp23018_reset_required(void); mcp23018_status_t mcp23018_writeReg(uint8_t regaddr, const uint8_t* data, uint16_t length); mcp23018_status_t mcp23018_readReg(uint8_t regaddr, uint8_t* data, uint16_t length);