69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
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#ifndef LCD12864_H
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#define LCD12864_H
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#include "stdint.h"
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#include "stdbool.h"
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#include "stm8s.h"
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/*
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* Initialize LCD12864.
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*
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* Pinout:
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* SCK -> PC5 [spi]
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* MOSI -> PC6 [spi]
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* MISO -> PC7 [spi]
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* CS -> PC4
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* RES -> PA2 //PC3
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* DC -> PD2
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*/
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#define LCD12864_TRANSACTION_START \
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SPI_CR1 = SPI_CR1_MSTR | SPI_CR1_BR(0) | SPI_CR1_SPE; \
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PC_ODR &= ~PIN4;
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#define LCD12864_TRANSACTION_END \
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while ((SPI_SR & SPI_SR_BSY)) \
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; \
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PC_ODR |= PIN4; \
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SPI_CR1 &= ~SPI_CR1_SPE;
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#define LCD12864_MODE_COMMAND PD_ODR &= ~PIN2;
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#define LCD12864_MODE_DATA PD_ODR |= PIN2;
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#define LCD12864_NORMALDISPLAY 0xA7
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#define LCD12864_INVERTDISPLAY 0xA6
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#define LCD12864_CLEARON 0xA5
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#define LCD12864_CLEAROFF 0xA4
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#define LCD12864_RESET 0xE2
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#define LCD12864_LCDWIDTH 128
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#define LCD12864_LCDHEIGHT 64
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#define LCD12864_PIX_START 0
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struct LCD12864_SEGMENT
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{
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uint8_t fontWidth;
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uint8_t fontHeight;
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uint8_t fontSpacing;
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uint8_t rows;
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uint8_t cols;
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uint8_t width;
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uint8_t height;
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uint8_t *buffer;
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uint16_t bufferDepth;
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uint8_t page0;
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uint8_t clearChar;
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};
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bool lcd12864_init(bool reset);
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void lcd12864_invert_display(bool i);
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void lcd12864_clear_display(bool i);
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struct LCD12864_SEGMENT *lcd12864_new_segment(uint8_t page0, uint8_t fontWidth, uint8_t fontHeight, uint8_t fontSpacing, uint8_t rows, uint8_t clearChar);
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bool lcd12864_free_segment(struct LCD12864_SEGMENT *segment);
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bool lcd12864_clear_segment(struct LCD12864_SEGMENT *segment);
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bool lcd12864_display_segment(struct LCD12864_SEGMENT *segment);
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void lcd12864_clear(uint8_t d);
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void lcd12864_command1(uint8_t c);
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void lcd12864_command_list(const uint8_t *c, uint8_t n);
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#endif /* LCD12864_H */
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