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中科蓝讯 AB32VG1 RISC-V开发板手记(二)OLED

发布于 2021-03-14 12:02:28 浏览：1438 订阅该版

OLED-I2C,芯片SH1106

~~新建一个RT-Thread Studio工程，增加组件：
![001.png](https://oss-club.rt-thread.org/uploads/20210314/84e3fcfca9930c4580c0e2aa1a3fe0a6.png)
细节再配置一下：
![002.png](https://oss-club.rt-thread.org/uploads/20210314/392c414e236aa423d4b3274e312ca726.png)
再下面这个配置，应该是默认的，没啥影响：
![003.png](https://oss-club.rt-thread.org/uploads/20210314/b499b310e0feb970369f20aa567a557c.png)
示例代码方面要修改一下：
![004.png](https://oss-club.rt-thread.org/uploads/20210314/ec0f706c7237d4238419646d644b2191.png)
ssd1306_tests.c
```
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>

#include <string.h>
#include <stdio.h>
#include "ssd1306.h"
#include "ssd1306_tests.h"

void ssd1306_TestBorder()
{
    ssd1306_Fill(Black);

//uint32_t start = HAL_GetTick();   //需替换下面一句
    uint32_t start = rt_tick_get();
    uint32_t end = start;
    uint8_t x = 0;
    uint8_t y = 0;
    do {
        ssd1306_DrawPixel(x, y, Black);

if((y == 0) && (x < 127))
            x++;
        else if((x == 127) && (y < 63))
            y++;
        else if((y == 63) && (x > 0)) 
            x--;
        else
            y--;

ssd1306_DrawPixel(x, y, White);
        ssd1306_UpdateScreen();
    
        //HAL_Delay(5);
        rt_thread_mdelay(5);
        //end = HAL_GetTick();
        end = rt_tick_get();
    } while((end - start) < 8000);
   
    //HAL_Delay(1000);   //需替换下面一句
    rt_thread_mdelay(5000);
}

void ssd1306_TestFonts()
{
    ssd1306_Fill(Black);
    ssd1306_SetCursor(2, 0);
    ssd1306_WriteString("Font 16x26", Font_16x26, White);
    ssd1306_SetCursor(2, 26);
    ssd1306_WriteString("Font 11x18", Font_11x18, White);
    ssd1306_SetCursor(2, 26+18);
    ssd1306_WriteString("Font 7x10", Font_7x10, White);
    ssd1306_SetCursor(2, 26+18+10);
    ssd1306_WriteString("Font 6x8", Font_6x8, White);
    ssd1306_UpdateScreen();
}

void ssd1306_TestFPS()
{
    ssd1306_Fill(White);
   
    //uint32_t start = HAL_GetTick();   //需替换下面一句
    uint32_t start = rt_tick_get();

uint32_t end = start;
    int fps = 0;
    char message[] = "ABCDEFGHIJK";
   
    ssd1306_SetCursor(2,0);
    ssd1306_WriteString("Testing...", Font_11x18, Black);
   
    do {
        ssd1306_SetCursor(2, 18);
        ssd1306_WriteString(message, Font_11x18, Black);
        ssd1306_UpdateScreen();
       
        char ch = message[0];
        memmove(message, message+1, sizeof(message)-2);
        message[sizeof(message)-2] = ch;

fps++;
        //end = HAL_GetTick();   //需替换下面一句
        end = rt_tick_get();
    } while((end - start) < 5000);
   
    //HAL_Delay(1000);
    rt_thread_mdelay(1000);

char buff[64];
    fps = (float)fps / ((end - start) / 1000.0);
    snprintf(buff, sizeof(buff), "~%d FPS", fps);
   
    ssd1306_Fill(White);
    ssd1306_SetCursor(2, 18);
    ssd1306_WriteString(buff, Font_11x18, Black);
    ssd1306_UpdateScreen();
}

void ssd1306_TestLine()
{
    ssd1306_Line(1,1,SSD1306_WIDTH - 1,SSD1306_HEIGHT - 1,White);
    ssd1306_Line(SSD1306_WIDTH - 1,1,1,SSD1306_HEIGHT - 1,White);
    ssd1306_UpdateScreen();
    return;
}

void ssd1306_TestRectangle()
{
    uint32_t delta;

for(delta = 0; delta < 5; delta ++) 
    {
        ssd1306_DrawRectangle(1 + (5*delta),1 + (5*delta) ,SSD1306_WIDTH-1 - (5*delta),SSD1306_HEIGHT-1 - (5*delta),White);
    }
    ssd1306_UpdateScreen();
    return;
}

void ssd1306_TestCircle()
{
    uint32_t delta;

for(delta = 0; delta < 5; delta ++) 
    {
        ssd1306_DrawCircle(20* delta+30, 30, 10, White);
    }
    ssd1306_UpdateScreen();
    return;
}

void ssd1306_TestArc()
{
    ssd1306_DrawArc(30, 30, 30, 20, 270, White);
    ssd1306_UpdateScreen();
    return;
}

void ssd1306_TestPolyline()
{
    SSD1306_VERTEX loc_vertex[] =
    {
        {35,40},
        {40,20},
        {45,28},
        {50,10},
        {45,16},
        {50,10},
        {53,16}
    };

ssd1306_Polyline(loc_vertex,sizeof(loc_vertex)/sizeof(loc_vertex[0]),White);
    ssd1306_UpdateScreen();
    return;
}

void ssd1306_TestAll()
{
    ssd1306_Init();

ssd1306_TestFPS();
    //HAL_Delay(3000);   //需替换下面一句
    rt_thread_mdelay(3000);

ssd1306_TestBorder();

ssd1306_TestFonts();
    //HAL_Delay(3000);   //需替换下面一句
    rt_thread_mdelay(3000);

ssd1306_Fill(Black);
    ssd1306_TestRectangle();
    ssd1306_TestLine();
    //HAL_Delay(3000);   //需替换下面一句
    rt_thread_mdelay(3000);

ssd1306_Fill(Black);
    ssd1306_TestPolyline();
    //HAL_Delay(3000);   //需替换下面一句
    rt_thread_mdelay(3000);

ssd1306_Fill(Black);
    ssd1306_TestArc();
    //HAL_Delay(3000);   //需替换下面一句
    rt_thread_mdelay(3000);

ssd1306_Fill(Black);
    ssd1306_TestCircle();
    //HAL_Delay(3000);   //需替换下面一句
    rt_thread_mdelay(3000);
}

#ifdef FINSH_USING_MSH
MSH_CMD_EXPORT(ssd1306_TestAll, test ssd1306 oled driver);
#endif
```
~~一如即往的，编译，烧录。请参考：中科蓝讯 AB32VG1 RISC-V开发板试用手记(一)
```
https://mp.weixin.qq.com/s/YPbBtZMiqWx3z348mWjuIg
```
最后视频效果：
```
https://mp.weixin.qq.com/s/bSFhKHAZ0VJ8C8yppcgLVA
```
了解更多，请关注微信公众号 “琴恺物联”
![logo1.jpg](https://oss-club.rt-thread.org/uploads/20210314/a62d54148310b598bc067afd95dcacf7.jpg)