61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
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/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.io/license.html
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*/
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#include <Arduino.h>
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#include <SPI.h>
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// pin numbers
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#define SSD1351_DC 14
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#define SSD1351_R 15
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#define SSD1351_CS 16
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// Predefine the routine with "C" prototypes
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extern "C" void ssd1351_init_board(void);
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extern "C" void ssd1351_setpin_reset(int state);
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extern "C" void ssd1351_acquire_bus(void);
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extern "C" void ssd1351_release_bus(void);
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extern "C" void ssd1351_write_cmd(unsigned char index);
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extern "C" void ssd1351_write_data(unsigned char data);
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static SPISettings settings(12000000, MSBFIRST, SPI_MODE0);
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void ssd1351_init_board(void) {
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pinMode(SSD1351_R, OUTPUT);
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pinMode(SSD1351_CS, OUTPUT);
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pinMode(SSD1351_DC, OUTPUT);
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digitalWriteFast(SSD1351_R, 1);
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digitalWriteFast(SSD1351_CS, 1);
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digitalWriteFast(SSD1351_DC, 1);
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}
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void ssd1351_setpin_reset(int state) {
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if (state)
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digitalWriteFast(SSD1351_R, 0);
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else
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digitalWriteFast(SSD1351_R, 1);
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}
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void ssd1351_acquire_bus(void) {
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SPI.beginTransaction(settings);
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digitalWriteFast(SSD1351_CS, 0);
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}
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void ssd1351_release_bus(void) {
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digitalWriteFast(SSD1351_CS, 1);
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SPI.endTransaction();
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}
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void ssd1351_write_cmd(unsigned char index) {
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digitalWriteFast(SSD1351_DC, 0);
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SPI.transfer(index);
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digitalWriteFast(SSD1351_DC, 1);
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}
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void ssd1351_write_data(unsigned char data) {
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SPI.transfer(data);
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}
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