| #ifndef DISPLAY_7SEG_HEADER |
| #define DISPLAY_7SEG_HEADER |
| |
| /* |
| * Copyright (c) 2021 Titouan Christophe |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| |
| /* |
| * 3 |
| * --- |
| * 1| |5 |
| * -2- |
| * 0| |6 |
| * --- |
| * 4 |
| */ |
| |
| #define CHAR_OFF (0) |
| |
| #define CHAR_0 (BIT(0) | BIT(1) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) |
| #define CHAR_1 (BIT(5) | BIT(6)) |
| #define CHAR_2 (BIT(0) | BIT(2) | BIT(3) | BIT(4) | BIT(5)) |
| #define CHAR_3 (BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) |
| #define CHAR_4 (BIT(1) | BIT(2) | BIT(5) | BIT(6)) |
| #define CHAR_5 (BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(6)) |
| #define CHAR_6 (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(6)) |
| #define CHAR_7 (BIT(3) | BIT(5) | BIT(6)) |
| #define CHAR_8 (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) |
| #define CHAR_9 (BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) |
| |
| #define CHAR_A (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(5) | BIT(6)) |
| #define CHAR_C (BIT(0) | BIT(1) | BIT(3) | BIT(4)) |
| #define CHAR_E (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4)) |
| #define CHAR_F (BIT(0) | BIT(1) | BIT(2) | BIT(3)) |
| #define CHAR_H (BIT(0) | BIT(1) | BIT(2) | BIT(5) | BIT(6)) |
| #define CHAR_L (BIT(0) | BIT(1) | BIT(4)) |
| #define CHAR_P (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(5)) |
| #define CHAR_U (BIT(0) | BIT(1) | BIT(4) | BIT(5) | BIT(6)) |
| |
| #define CHAR_b (BIT(0) | BIT(1) | BIT(2) | BIT(4) | BIT(6)) |
| #define CHAR_d (BIT(0) | BIT(2) | BIT(4) | BIT(5) | BIT(6)) |
| #define CHAR_h (BIT(0) | BIT(1) | BIT(2) | BIT(6)) |
| #define CHAR_i (BIT(6)) |
| #define CHAR_o (BIT(0) | BIT(2) | BIT(4) | BIT(6)) |
| #define CHAR_r (BIT(0) | BIT(2)) |
| #define CHAR_t (BIT(0) | BIT(1) | BIT(2) | BIT(4)) |
| #define CHAR_u (BIT(0) | BIT(4) | BIT(6)) |
| |
| #define CHAR_DASH (BIT(2)) |
| #define CHAR_OVERLINE (BIT(3)) |
| #define CHAR_UNDERSCORE (BIT(4)) |
| #define CHAR_PIPE (BIT(0) | BIT(1)) |
| |
| extern const uint8_t DISPLAY_OFF[4]; |
| extern const uint8_t TEXT_Err[4]; |
| |
| /** |
| * @brief Display characters on the 4x7seg display |
| * @param[in] chars The characters to be displayed |
| * @return 0 on success, nonzero on error |
| */ |
| int display_chars(const uint8_t chars[4]); |
| |
| /** |
| * @brief Display a number on the 4x7seg display |
| * @param[in] num The number to be displayed |
| * @param[in] base The base into which the number shall be displayed |
| * @return 0 on success, nonzero on error |
| */ |
| int display_number(int num, unsigned int base); |
| |
| #endif |
