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- /* Copyright 2019
- *
- * 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
-
- /*
- PCA9555
- ,----------.
- SDA --| SDA P00 |-- P00
- SCL --| SCL P01 |-- P01
- INT --| INT P02 |-- P02
- | P03 |-- P03
- A0 --| A0 P04 |-- P04
- A1 --| A1 P05 |-- P05
- A2 --| A2 P06 |-- P06
- | P07 |-- P07
- | |
- | P10 |-- P10
- | P11 |-- P11
- | P12 |-- P12
- | P13 |-- P13
- | P14 |-- P14
- | P15 |-- P15
- | P16 |-- P16
- | P17 |-- P17
- `----------'
- */
-
- #define PCA9555_PORT0 0
- #define PCA9555_PORT1 1
-
- #define ALL_OUTPUT 0
- #define ALL_INPUT 0xFF
- #define ALL_LOW 0
- #define ALL_HIGH 0xFF
-
- void pca9555_init(uint8_t slave_addr);
-
- void pca9555_set_config(uint8_t slave_addr, uint8_t port, uint8_t conf);
-
- void pca9555_set_output(uint8_t slave_addr, uint8_t port, uint8_t conf);
-
- uint8_t pca9555_readPins(uint8_t slave_addr, uint8_t port);
-
- uint16_t pca9555_readAllPins(uint8_t slave_addr);
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