60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* Reflow Oven Controller
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*
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* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* The Reflow Oven Control Firmware is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __LCD_H__
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#define __LCD_H__
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#include <stdint.h>
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#define LCD_DPORT (GPIOD)
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#define LCD_RCC_MASK RCC_AHB1ENR_GPIODEN
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#define LCD_DATA_BIT_OFFSET (8)
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#define LCD_RS (6)
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#define LCD_E (7)
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#define LCD_DATA_MASK (0xFU << LCD_DATA_BIT_OFFSET)
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#define LCD_RS_MASK (1U << LCD_RS)
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#define LCD_E_MASK (1U << LCD_E)
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#define LCD_CHAR_WIDTH 16
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#define LCD_ROW_COUNT 4
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#define LCD_SHIMATTA_STRING "\xBC\xCF\xAF\xC0"
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#define LCD_DEGREE_SYMBOL_STRING "\xDF"
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#define LCD_DEGREE_SYMBOL_CHAR '\xDF'
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#define LCD_OHM_SYMBOL_CHAR '\xF4'
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#define LCD_OHM_SYMBOL_STRING "\xF4"
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enum lcd_fsm_ret {LCD_FSM_NOP, LCD_FSM_CALL_AGAIN, LCD_FSM_WAIT_CALL};
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void lcd_init(void);
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void lcd_string(const char *data);
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void lcd_setcursor(uint8_t x, uint8_t y);
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void lcd_home(void);
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enum lcd_fsm_ret lcd_fsm_write_buffer(const char (*display_buffer)[21]);
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#endif /* __LCD_H__ */
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