mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-12-30 21:38:01 +06:00
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* 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);
|