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/**
******************************************************************************
* @file oled_ssd1306.cpp
* @author shentq
* @version V2.2
* @date 2016/08/14
* @brief
******************************************************************************
* @attention
*
* No part of this software may be used for any commercial activities by any form
* or means, without the prior written consent of shentq. This specification is
* preliminary and is subject to change at any time without notice. shentq assumes
* no responsibility for any errors contained herein.
* <h2><center>© Copyright 2015 shentq. All Rights Reserved.</center></h2>
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "oled_ssd1322.h"
#include "font.h"
static uint8_t buffer[ SSD1322_LCDWIDTH * SSD1322_LCDHEIGHT / (8/BITS_PER_PIXEL) ] = {0};
/**********************************************************
* 函 数 声 明 区 *
**********************************************************/
OledSSD1322::OledSSD1322(Gpio *cs, Gpio *dc, Gpio *res, Gpio *scl_d0, Gpio *sda_d1)
{
this->cs_pin = cs;
this->res_pin = res;
this->dc_pin = dc;
this->scl_pin = scl_d0;
this->sda_pin = sda_d1;
this->spi = NULL;
}
OledSSD1322::OledSSD1322(Gpio *cs, Gpio *dc,Gpio *res , Spi *spi)
{
this->cs_pin = cs;
this->res_pin = res;
this->dc_pin = dc;
this->spi = spi;
}
void OledSSD1322::begin(void) //初始化SSD1306
{
buffer_size = SSD1322_LCDWIDTH * SSD1322_LCDHEIGHT / (8/BITS_PER_PIXEL);
width = SSD1322_LCDWIDTH;
hight = SSD1322_LCDHEIGHT;
res_pin->mode(OUTPUT_PP);
dc_pin->mode(OUTPUT_PP);
cs_pin->mode(OUTPUT_PP);
if(spi == NULL)
{
scl_pin->mode(OUTPUT_PP);
sda_pin->mode(OUTPUT_PP);
}
else
{
config.dev_num = cs_pin->id;
config.mode = Spi::MODE0;
config.bit_order = Spi::MSB;
config.prescaler = Spi::DIV8;
spi->begin(&config);
}
for(uint32_t i = 0; i < (64*256/2); i++)
buffer[i] = 0;
init();
flush();
}
void OledSSD1322::draw_pixel(int16_t x, int16_t y,uint32_t color)
{
if(x < 0 || x >= width)return;
if(y < 0 || y >= hight)return;
color &= 0x0f;
#ifdef SSD1322_256_64_4 // 4 bits per pixel
register uint8_t mask = ((x % 2) ? color : color << 4);
register uint8_t *pBuf = &buffer[(x >> 1) + (y * (SSD1322_LCDWIDTH / 2))];
register uint8_t b1 = *pBuf;
b1 &= (x % 2) ? 0xF0 : 0x0F; // cleardown nibble to be replaced
// write our value in
*pBuf++ = b1 | mask;
#endif
#ifdef SSD1322_256_64_1 // 1 bit per pixel
register uint8_t *pBuf = &buffer[(x >> 3) + (y * (SSD1322_LCDWIDTH / 8))];
switch (color)
{
case WHITE: *pBuf |= (0x80 >> (x%8)); break;
case BLACK: *pBuf &= ~(0x80 >> (x%8)); break;
case INVERSE: *pBuf ^= (0x80 >> (x%8)); break;
}
#endif
}
void OledSSD1322::fill_screen(uint32_t color)
{
color &=0x0f;
for(uint32_t i = 0; i < buffer_size; i++)
buffer[i] = color | color << 4;
}
/***********************************************************
* 函数名称：
* 功能描述： OLED清屏
* 参数列表：
* 返回结果：
* 备 注：清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
***********************************************************/
void OledSSD1322::clear()
{
fill_screen(0);
flush();
}
/***********************************************************
* 函数名称：
* 功能描述： OLED刷新
* 参数列表：
* 返回结果：
* 备 注：在做任何显示更新之后必须，将缓冲区内容填充至屏幕
***********************************************************/
void OledSSD1322::flush()
{
// 固定显示区域，不用重复设置
set_column_addr(0,63);
set_row_addr(0,63);
write_cmd(0x5C); //开始写RAM命令
for(uint32_t i = 0; i < buffer_size; i++)
{
write_data(buffer[i]);
}
}
/***********************************************************
* 函数名称：
* 功能描述： OLED写数据
* 参数列表：
* 返回结果：
* 备 注：
***********************************************************/
void OledSSD1322::write_data_hard(uint8_t data) //OLED写数据
{
dc_pin->set();
cs_pin->reset();
spi->take(&config);
spi->write(data);
spi->release();
cs_pin->set();
dc_pin->set();
}
void OledSSD1322::write_cmd_hard(uint8_t cmd) //OLED写命令
{
dc_pin->reset();
cs_pin->reset();
spi->take(&config);
spi->write(cmd);
spi->release();
cs_pin->set();
dc_pin->set();
}
void OledSSD1322::write_data_soft(uint8_t dat)
{
uint8_t i;
dc_pin->set();
cs_pin->reset();
for(i = 0; i < 8; i++)
{
scl_pin->reset();
if(dat & 0x80)
sda_pin->set();
else
sda_pin->reset();
scl_pin->set();
dat <<= 1;
}
cs_pin->set();
dc_pin->set();
}
/***********************************************************
* 函数名称：
* 功能描述： OLED写数据
* 参数列表：
* 返回结果：
* 备 注：
***********************************************************/
void OledSSD1322::write_cmd_soft(uint8_t cmd)
{
uint8_t i;
dc_pin->reset();
cs_pin->reset();
for(i = 0; i < 8; i++)
{
scl_pin->reset();
if(cmd & 0x80)
sda_pin->set();
else
sda_pin->reset();
scl_pin->set();
cmd <<= 1;
}
cs_pin->set();
dc_pin->set();
}
void OledSSD1322::write_cmd(uint8_t cmd)
{
if(spi != NULL)
{
write_cmd_hard(cmd);
}else{
write_cmd_soft(cmd);
}
}
void OledSSD1322::write_data(uint8_t data)
{
if(spi != NULL)
{
write_data_hard(data);
}else{
write_data_soft(data);
}
}
/***********************************************************
* 函数名称：
* 功能描述： OLED设置坐标
* 参数列表：
* 返回结果：
* 备 注：
***********************************************************/
void OledSSD1322::set_column_addr(uint16_t x0, uint16_t x1) // OLED 设置坐标
{
write_cmd(0x15); // Set Column Address
write_data(28+x0); // Default => 0x00
write_data(28+x1); // Default => 0x77
}
void OledSSD1322::set_row_addr(uint16_t y0, uint16_t y1) // OLED 设置坐标
{
write_cmd(0x75); // Set Row Address
write_data(y0); // Default => 0x00
write_data(y1); // Default => 0x3F
}
/***********************************************************
* 函数名称：
* 功能描述： OledSSD1322开启显示
* 参数列表：
* 返回结果：
* 备 注：
***********************************************************/
void OledSSD1322::display_on(void)
{
write_cmd(0x8d); //SET DCDC命令
write_cmd(0X14); //DCDC ON
write_cmd(0XAF); //DISPLAY ON
}
/***********************************************************
* 函数名称：
* 功能描述： OledSSD1322关闭显示
* 参数列表：
* 返回结果：
* 备 注：
***********************************************************/
void OledSSD1322::display_off(void)
{
write_cmd(0x8d); //SET DCDC命令
write_cmd(0X10); //DCDC ON
write_cmd(0XAE); //DISPLAY ON
}
/***********************************************************
* 函数名称：
* 功能描述： OledSSD1322初始化
* 参数列表：
* 返回结果：
* 备 注：
***********************************************************/
void OledSSD1322::init(void)
{
res_pin->set();
delay_ms(100);
res_pin->reset();
delay_ms(100);
res_pin->set();
write_cmd(0xae); //AE:display OFF AF: ON
write_cmd(0xfd); /*Command Lock*/
write_data(0x12); //0x12:解锁 0x16:Lock
write_cmd(0xb3); //Set Display Clock Divide Ratio/Oscillator Frequency
write_data(0x91); //主频分频器
write_cmd(0xca); //Set Multiplex Ratio
write_data(0x3f); //使用64根行线
write_cmd(0xa2); //Set Display Offset
write_data(0x00); //
write_cmd(0xa1); //Set Display Start Line
write_data(0x00); //
write_cmd(0xa0); //Set Re-Map $ Dual COM Line Mode
write_data(0x14); //14
// write_data(0x01); //0x11
write_cmd(0xB5); //Set GPIO
write_data(0x00);
write_cmd(0xab); //Function Selection
write_data(0x01); //
write_cmd(0xb4); //Enable External VSL
write_data(0xa0); //
write_data(0xfd); //f8
write_cmd(0xc1); //Set Contrast Current
write_data(0xff); //ef
write_cmd(0xc7); //Master Contrast Current Control
write_data(0x0f); //ff
/*
write_cmd(0xb8); //Select Gray Scale Table
write_data(0x00);
write_data(0x01);
write_data(0x03);
write_data(0x06);
write_data(0x0a);
write_data(0x10);
write_data(0x1a);
write_data(0x28);
write_data(0x37);
write_data(0x47);
write_data(0x58);
write_data(0x6a);
write_data(0x7f);
write_data(0x96);
write_data(0xb4);
*/
write_cmd(0xb9); //Select Default Linear Gray Scale Table
write_cmd(0xb1); //Set Phase Length
write_data(0xe2);
write_cmd(0xd1); //Enhance Driving Scheme Capability
write_data(0xa2); //a2
write_data(0x20);
write_cmd(0xbb); //Set Pre-Charge Voltage
write_data(0x1f);
write_cmd(0xb6); //Set Second Pre-Charge Period
write_data(0x08);
write_cmd(0xbe); //Set VCOMH Deselect Level
write_data(0x07);
write_cmd(0xa6); //Set Display Mode
// write_cmd(0xA9); // Disable Partial Display
write_cmd(0xaf); //Sleep Out
//delay1(100);
//设定显示区域
// set_column_addr(0,63);
// set_row_addr(0,63);
}
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