mirror of
https://github.com/cclassic/hcs12ss59t
synced 2024-11-24 19:15:06 +01:00
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
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/*
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* HCS12SS59T AVR Library
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* Copyright (c) 2017 Markus Koch <markus@notsyncing.net>
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Thanks to qrti on GitHub for his research into this display!
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* https://github.com/qrti/VFD-HCS-12SS59T
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*/
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#ifndef HCS12SS59T_H
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#define HCS12SS59T_H
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#include <avr/io.h>
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#include <util/delay.h>
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/* AVR hardware configuration */
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#define HCS12SS59T_SPI_DDR DDRB
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#define HCS12SS59T_SPI_PORT PORTB
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#define HCS12SS59T_SPI_MOSI PB3
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#define HCS12SS59T_SPI_SCK PB5
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#define HCS12SS59T_SPI_SS_N PB2
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#define HCS12SS59T_SPI_RESET_N PB0
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/* Display commands and information */
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#define HCS12SS59T_DCRAM_WR 0x10 /* ccccaaaa dddddddd dddddddd .. */
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#define HCS12SS59T_CGRAM_WR 0x20 /* ccccaaaa dddddddd dddddddd .. */
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#define HCS12SS59T_ADRAM_WR 0x30 /* ccccaaaa ******dd ******dd .. */
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#define HCS12SS59T_DUTY 0x50 /* ccccdddd (dddd 0 to 15)*/
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#define HCS12SS59T_NUMDIGIT 0x60 /* ccccdddd */
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#define HCS12SS59T_LIGHTS 0x70 /* cccc**dd */
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#define HCS12SS59T_LINORM 0x00 /* Display normal */
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#define HCS12SS59T_LIOFF 0x01 /* Display off */
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#define HCS12SS59T_LION 0x02 /* Display all on (test) */
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#define HCS12SS59T_NUMDIGITS 12 /* Display digit width */
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#define HCS12SS59T_DEFAULT_BRIGHTNESS 4 /* Default brightness */
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/* Macros */
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#define HCS12SS59T_SELECT {HCS12SS59T_SPI_PORT &= ~(1 << HCS12SS59T_SPI_SS_N);\
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_delay_us(1); /* > 250 ns */}
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#define HCS12SS59T_DESELECT {HCS12SS59T_SPI_PORT |= (1 << HCS12SS59T_SPI_SS_N);\
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_delay_us(1); /* > 250 ns */}
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/* User functions */
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void hcs12ss59t_init();
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void hcs12ss59t_reset();
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void hcs12ss59t_set_text(char *text);
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void hcs12ss59t_set_buffer(char *data);
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void hcs12ss59t_set_brightness(char brightness);
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/* Low level functions */
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void hcs12ss59t_send_byte(char c);
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char hcs12ss59t_get_char(char c);
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#endif // HCS12SS59T_H
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