blob: ce6a9ddb0e94a31ad34c8f5bb4a71902741c0e40 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* Copyright 2022
*
* 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
#include <stdint.h>
#include <stdbool.h>
/**
* Driver for 74x154 4-to-16 decoder/demultiplexer with inverting outputs
* https://assets.nexperia.com/documents/data-sheet/74HC_HCT154.pdf
*/
/**
* Initialize the address and output enable pins.
*/
void sn74x154_init(void);
/**
* Set the enabled state.
*
* When enabled is true, pulls the E0 and E1 pins low.
*
* \param enabled The enable state to set.
*/
void sn74x154_set_enabled(bool enabled);
/**
* Set the output pin address.
*
* The selected output pin will be pulled low, while the remaining output pins will be high.
*
* \param address The address to set, from 0 to 15.
*/
void sn74x154_set_addr(uint8_t address);
|
