GD32E230 SPI方式驱动SSD1306源码 128*64 OLED屏 -

#ifndef __SSD1306_SPI_H
#define __SSD1306_SPI_H
#include "gd32e230.h"
/*******************************宏定义****************************************/
#define XLevelL 0x00
#define XLevelH 0x10
#define XLevel ((XLevelH&0x0F)*16+XLevelL)
#define Max_Column 128
#define Max_Row 64
#define Brightness 0xCF
#define X_WIDTH 128
#define Y_WIDTH 64
//-----------------OLED端口定义----------------
#define OLED_CS_Clr() GPIO_BC(GPIOB) = GPIO_PIN_0
#define OLED_CS_Set() GPIO_BOP(GPIOB) = GPIO_PIN_0 //接OLED模块CS B0
#define OLED_DC_Clr() GPIO_BC(GPIOB) = GPIO_PIN_1
#define OLED_DC_Set() GPIO_BOP(GPIOB) = GPIO_PIN_1 //接OLED模块D/C B1
#define OLED_SDA_Clr() GPIO_BC(GPIOB) = GPIO_PIN_8
#define OLED_SDA_Set() GPIO_BOP(GPIOB) = GPIO_PIN_8 //接OLED模块MOSI B8
#define OLED_SCL_Clr() GPIO_BC(GPIOA) = GPIO_PIN_7
#define OLED_SCL_Set() GPIO_BOP(GPIOA) = GPIO_PIN_7 //接OLED模块的CLK B9
//#define OLED_CMD 0 //写命令
//#define OLED_DATA 1 //写数据
//OLED控制用函数
void OLED_WrDat(unsigned char dat);//写数据
void OLED_WrCmd(unsigned char cmd);//写命令
void OLED_SetPos(unsigned char x, unsigned char y);//设置起始点坐标
void OLED_Fill(unsigned char bmp_dat);//全屏填充
void OLED_CLS(void);//清屏
void OLED_Init(void);//初始化
void OLED_6x8Str(unsigned char x, unsigned char y, unsigned char ch[]);
//void OLED_8x16Str(unsigned char x, unsigned char y, unsigned char ch[]);
void OLED_8x16Str(unsigned char x, unsigned char y, unsigned char FB,unsigned char ch[]);
void OLED_16x16CN(unsigned char x, unsigned char y, unsigned char N);
void OLED_BMP(unsigned char x0, unsigned char y0, unsigned char x1, unsigned char y1, unsigned char BMP[]);
#endif
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include "SSD1306_SPI.h"
#include "systick.h"
#include "codetab.h"
void delay(uint32_t nCount)
{
unsigned int a;
while(nCount)
{
a=1800;
while(a--);
nCount--;
}
return;
}
void OLED_WrDat(unsigned char dat)//写数据
{
unsigned char i, temp=0;
OLED_DC_Set();
for(i=0;i<8;i++) //发送一个八位数据
{
OLED_SCL_Clr();
temp = dat&0x80;
if (temp == 0)
{
OLED_SDA_Clr();
}
else
{
OLED_SDA_Set();
}
//delay_1ms(1U);
OLED_SCL_Set();
dat<<=1;
//delay_1ms(1U);
}
}
void OLED_WrCmd(unsigned char cmd)//写命令
{
unsigned char i, temp=0;
OLED_DC_Clr();
for(i=0;i<8;i++) //发送一个八位数据
{
OLED_SCL_Clr();
temp = cmd&0x80;
if (temp == 0)
{
OLED_SDA_Clr();
}
else
{
OLED_SDA_Set();
}
OLED_SCL_Set();
cmd<<=1;;
}
}
void OLED_SetPos(unsigned char x, unsigned char y)//设置起始点坐标
{
OLED_WrCmd(0xb0 + y);
OLED_WrCmd(((x&0xf0)>>4)|0x10);
OLED_WrCmd((x&0x0f)|0x01);
}
void OLED_Fill(unsigned char bmp_dat)//全屏填充
{
unsigned char y,x;
for(y=0;y<8;y++)
{
OLED_WrCmd(0xb0+y);
OLED_WrCmd(0x01);
OLED_WrCmd(0x10);
for(x=0;x<X_WIDTH;x++)
{
OLED_WrDat(bmp_dat);
}
}
}
void OLED_CLS(void)//清屏
{
OLED_Fill(0x00);
}
void OLED_Init(void)
{
rcu_periph_clock_enable(RCU_GPIOB);
gpio_mode_set(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,GPIO_PIN_0);
gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_0);
gpio_mode_set(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,GPIO_PIN_1);
gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_1);
gpio_mode_set(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,GPIO_PIN_8);
gpio_output_options_set(GPIOB, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_8);
rcu_periph_clock_enable(RCU_GPIOA);
gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,GPIO_PIN_7);
gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ,GPIO_PIN_7);
OLED_SCL_Set();
OLED_CS_Clr();
delay(100);
OLED_CS_Set();
OLED_WrCmd(0xae);//--turn off oled panel
OLED_WrCmd(0x00);//---set low column address
OLED_WrCmd(0x10);//---set high column address
OLED_WrCmd(0x40);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
OLED_WrCmd(0x81);//--set contrast control register
OLED_WrCmd(0xcf); // Set SEG Output Current Brightness
OLED_WrCmd(0xa1);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
OLED_WrCmd(0xc8);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
OLED_WrCmd(0xa6);//--set normal display
OLED_WrCmd(0xa8);//--set multiplex ratio(1 to 64)
OLED_WrCmd(0x3f);//--1/64 duty
OLED_WrCmd(0xd3);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
OLED_WrCmd(0x00);//-not offset
OLED_WrCmd(0xd5);//--set display clock divide ratio/oscillator frequency
OLED_WrCmd(0x80);//--set divide ratio, Set Clock as 100 Frames/Sec
OLED_WrCmd(0xd9);//--set pre-charge period
OLED_WrCmd(0xf1);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
OLED_WrCmd(0xda);//--set com pins hardware configuration
OLED_WrCmd(0x12);
OLED_WrCmd(0xdb);//--set vcomh
OLED_WrCmd(0x40);//Set VCOM Deselect Level
OLED_WrCmd(0x20);//-Set Page Addressing Mode (0x00/0x01/0x02)
OLED_WrCmd(0x02);//
OLED_WrCmd(0x8d);//--set Charge Pump enable/disable
OLED_WrCmd(0x14);//--set(0x10) disable
OLED_WrCmd(0xa4);// Disable Entire Display On (0xa4/0xa5)
OLED_WrCmd(0xa6);// Disable Inverse Display On (0xa6/a7)
OLED_WrCmd(0xaf);//--turn on oled panel
OLED_Fill(0xff); //初始清屏
delay(50);
OLED_CLS();
OLED_SetPos(0,0);
}
void OLED_6x8Str(unsigned char x, unsigned char y, unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='\0')
{
c = ch[j]-32;
if(x>126)
{
x=0;y++;
}
OLED_SetPos(x,y);
for(i=0;i<6;i++)
{
OLED_WrDat(F6x8[c][i]);
}
x+=6;
j++;
}
}
void OLED_8x16Str(unsigned char x, unsigned char y, unsigned char FB,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='\0')
{
c =ch[j]-32;
if(x>120)
{
x=0;y++;
}
OLED_SetPos(x,y);
for(i=0;i<8;i++)
{
if(FB == 1) OLED_WrDat(~(F8X16[c*16+i]));
else OLED_WrDat(F8X16[c*16+i]);
}
OLED_SetPos(x,y+1);
for(i=0;i<8;i++)
{
if(FB == 1) OLED_WrDat(~(F8X16[c*16+i+8]));
else OLED_WrDat(F8X16[c*16+i+8]);
}
x+=8;
j++;
}
}
void OLED_16x16CN(unsigned char x, unsigned char y, unsigned char N)
{
unsigned char wm=0;
unsigned int adder=32*N;
OLED_SetPos(x , y);
for(wm = 0;wm < 16;wm++)
{
OLED_WrDat(F16x16[adder]);
adder += 1;
}
OLED_SetPos(x,y + 1);
for(wm = 0;wm < 16;wm++)
{
OLED_WrDat(F16x16[adder]);
adder += 1;
}
}
void OLED_BMP(unsigned char x0, unsigned char y0, unsigned char x1, unsigned char y1, unsigned char BMP[])
{
unsigned int j=0;
unsigned char x,y;
if(y1%8==0)
{
y=y1/8;
}
else
y=y1/8+1;
for(y=y0;y<y1;y++)
{
OLED_SetPos(x0,y);
for(x=x0;x<x1;x++)
{
OLED_WrDat(BMP[j++]);
}
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
int main(void)
{
extern const unsigned char BMP1[];
extern const unsigned char BMP_SETTING[];
extern const unsigned char BMP_POWEROFF[];
int32_t i = 0;
uint8_t key = 0;
/* system clocks configuration */
rcu_config();
/* systick configuration */
systick_config();
/* GPIO configuration */
gpio_config();
/* UART configuration */
COM_init(EVAL_COM);
/* OLED configuration */
OLED_Init();
/*******************************************************************/
OLED_6x8Str(0,0,(uint8_t *)"123456789");
OLED_6x8Str(0,1,(uint8_t *)"abcdefgh");
delay_1ms(800U);
OLED_BMP(0,0,128,8,(unsigned char *)BMP1);
while (1)
{
delay_1ms(100U);
}
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////
MCU:GD32E230C8T6,72MHz
OLED SPI MODE
OLED: SmartRF V2.6的OLED屏
1 2 3 4 5 6
GND VCC D0 D1 RST DC
0V 3V3 PB9 PA7 PB0 PB1
GD的库： version 2018-06-19, V1.0.0, firmware for GD32E230
KEIL MDK 5.27.1.0

复制代码