1 #ifndef DISPLAY_7SEG_HEADER 2 #define DISPLAY_7SEG_HEADER 3 4 /* 5 * Copyright (c) 2021 Titouan Christophe 6 * 7 * SPDX-License-Identifier: Apache-2.0 8 */ 9 10 #include <stdbool.h> 11 #include <stdint.h> 12 13 /* 14 * 3 15 * --- 16 * 1| |5 17 * -2- 18 * 0| |6 19 * --- 20 * 4 21 */ 22 23 #define CHAR_OFF (0) 24 25 #define CHAR_0 (BIT(0) | BIT(1) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) 26 #define CHAR_1 (BIT(5) | BIT(6)) 27 #define CHAR_2 (BIT(0) | BIT(2) | BIT(3) | BIT(4) | BIT(5)) 28 #define CHAR_3 (BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) 29 #define CHAR_4 (BIT(1) | BIT(2) | BIT(5) | BIT(6)) 30 #define CHAR_5 (BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(6)) 31 #define CHAR_6 (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(6)) 32 #define CHAR_7 (BIT(3) | BIT(5) | BIT(6)) 33 #define CHAR_8 (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) 34 #define CHAR_9 (BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6)) 35 36 #define CHAR_A (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(5) | BIT(6)) 37 #define CHAR_C (BIT(0) | BIT(1) | BIT(3) | BIT(4)) 38 #define CHAR_E (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4)) 39 #define CHAR_F (BIT(0) | BIT(1) | BIT(2) | BIT(3)) 40 #define CHAR_H (BIT(0) | BIT(1) | BIT(2) | BIT(5) | BIT(6)) 41 #define CHAR_L (BIT(0) | BIT(1) | BIT(4)) 42 #define CHAR_P (BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(5)) 43 #define CHAR_U (BIT(0) | BIT(1) | BIT(4) | BIT(5) | BIT(6)) 44 45 #define CHAR_b (BIT(0) | BIT(1) | BIT(2) | BIT(4) | BIT(6)) 46 #define CHAR_d (BIT(0) | BIT(2) | BIT(4) | BIT(5) | BIT(6)) 47 #define CHAR_h (BIT(0) | BIT(1) | BIT(2) | BIT(6)) 48 #define CHAR_i (BIT(6)) 49 #define CHAR_o (BIT(0) | BIT(2) | BIT(4) | BIT(6)) 50 #define CHAR_r (BIT(0) | BIT(2)) 51 #define CHAR_t (BIT(0) | BIT(1) | BIT(2) | BIT(4)) 52 #define CHAR_u (BIT(0) | BIT(4) | BIT(6)) 53 54 #define CHAR_DASH (BIT(2)) 55 #define CHAR_OVERLINE (BIT(3)) 56 #define CHAR_UNDERSCORE (BIT(4)) 57 #define CHAR_PIPE (BIT(0) | BIT(1)) 58 59 extern const uint8_t DISPLAY_OFF[4]; 60 extern const uint8_t TEXT_Err[4]; 61 62 /** 63 * @brief Display characters on the 4x7seg display 64 * @param[in] chars The characters to be displayed 65 * @return 0 on success, nonzero on error 66 */ 67 int display_chars(const uint8_t chars[4]); 68 69 /** 70 * @brief Display a number on the 4x7seg display 71 * @param[in] num The number to be displayed 72 * @param[in] base The base into which the number shall be displayed 73 * @return 0 on success, nonzero on error 74 */ 75 int display_number(int num, unsigned int base); 76 77 #endif 78
