stm32f103c8t6移植U8g2

最新推荐文章于 2025-05-01 15:00:04 发布

Aurora Smith

最新推荐文章于 2025-05-01 15:00:04 发布

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CC 4.0 BY-SA版权

文章标签： stm32 嵌入式硬件单片机

本文链接：https://blog.youkuaiyun.com/AuroraSmith/article/details/131444353

本文详细介绍了如何在KEIL5MDK环境下，针对STM32微控制器，下载并精简U8g2源码以适配SSD1306OLED屏幕。步骤包括下载源码、保留必要的驱动文件、修改u8g2_d_setup.c和u8g2_d_memory.c、设置工程以及自定义u8x8_gpio_and_delay()函数来处理I2C通信和延时。最后展示了main.c中的关键代码，包括初始化、绘制线条和显示图像。

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U8g2代码下载：

https://github.com/olikraus/u8g2

1，准备一个正常运行的KEIL5 MDK模板
2，下载u8g2的源码和 u8g2的STM32实例模板
源码: https://github.com/olikraus/u8g2
STM32实例模板: https://github.com/nikola-v/u8g2_template_stm32f103c8t6

3，去掉无用的驱动文件,只保留u8x8_d_ssd1306_128x64_noname.c
4，精简u8g2_d_setup.c，只保留u8g2_Setup_ssd1306_i2c_128x64_noname_f()

5，精简u8g2_d_memory.c,只保留u8g2_m_16_8_f()
6，对工程进行设置并剔除编译错误
7，更改u8x8_gpio_and_delay()

1.在csrc文件中，保留驱动文件u8x8_d_ssd1306_128*64_noname_f

2.将这些文件，放到keil中

在main.c中包含头文件:

#include "u8g2.h"

并包含路径

3.移植好OLED的驱动

4.精简u8g2_d_setup.c，只保留u8g2_Setup_ssd1306_i2c_128x64_noname_f()

5.精简u8g2_d_memory.c,只保留u8g2_m_16_8_f()

6，对工程进行设置并剔除编译错误
7，更改u8x8_gpio_and_delay()

uint8_t gpio_and_delay_stm32(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
	switch(msg)
		{
			case U8X8_MSG_DELAY_MILLI://Function which implements a delay, arg_int contains the amount of ms
				Delayxms(arg_int);
			break;
		
			case U8X8_MSG_DELAY_10MICRO://Function which delays 10us
				Delayxus(10);
			break;
		
			case U8X8_MSG_DELAY_100NANO://Function which delays 100ns
				__NOP();
			break;
			case U8X8_MSG_GPIO_I2C_CLOCK:
				if (arg_int) GPIO_WriteBit(GPIOB, GPIO_Pin_8,Bit_SET );
				else GPIO_WriteBit(GPIOB, GPIO_Pin_8,Bit_RESET );
			break;
			case U8X8_MSG_GPIO_I2C_DATA:
				if (arg_int) GPIO_WriteBit(GPIOB, GPIO_Pin_9, Bit_SET);
				else GPIO_WriteBit(GPIOB, GPIO_Pin_9, Bit_RESET);
			break;
			default:
				return 0; //A message was received which is not implemented, return 0 to indicate an error
	}
	return 1; // command processed successfully.
}

8.main.c的代码

#include "stm32f10x.h"                  // Device header
#include "led.h"
#include "u8g2.h"
#include "OLED.h"
#include "Delay.h"

u8g2_t u8g2;
static const unsigned char u8g_logo_bits[] U8X8_PROGMEM =
{
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0xE0,0x01,0x00,0x00,0xF0,0x01,0x00,0x00,0xF8,0x01,0x00,0x00,0xFC,0x01,0x00,0x00,0xFE,0x01,0x00,
	0x30,0xFE,0xFF,0x01,0x3C,0xFE,0xFF,0x01,0x3C,0xFE,0xFF,0x01,0x3C,0xFE,0xFF,0x01,0x3C,0xFE,0xFF,0x01,0x3C,0xFE,0xFF,0x01,0x3C,0xFE,0xFF,0x01,0x3C,0xFE,0xFF,0x01,
	0x3C,0xFE,0xFF,0x00,0x3C,0xFE,0xFF,0x00,0x3C,0xFE,0xFF,0x00,0x3C,0xFE,0x7F,0x00,0x3C,0xFE,0x7F,0x00,0x3C,0xFE,0x7F,0x00,0x3C,0xFE,0x3F,0x00,0x00,0x00,0x00,0x00,
	0x00,0x00,0x00,0x00,/*G:\正在开工\U8g2相关资料20230324\相关资料\点赞.bmp*/0
};



uint8_t gpio_and_delay_stm32(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
void u8g2_init(void);
void draw(u8g2_t *u8g2);

int main(void)
{
    OLED_Init();
    u8g2_init();
    
    Delayxms(1000);
	u8g2_DrawLine(&u8g2, 0,0, 127, 63);//测试：起点：横坐标，纵坐标；终点：横坐标，纵坐标
	u8g2_DrawLine(&u8g2, 127,0, 0, 63);
	u8g2_SendBuffer(&u8g2);
	Delayxms(1000);
	u8g2_ClearBuffer(&u8g2);
    draw(&u8g2);//官方测试函数，显示U8g2的logo
    Delayxms(1000);
	u8g2_ClearBuffer(&u8g2);
    u8g2_DrawXBMP(&u8g2, 30, 20, 25, 25, u8g_logo_bits);//显示点赞图案
    u8g2_SendBuffer(&u8g2);

    while(1)
	{
		

	}
}


uint8_t gpio_and_delay_stm32(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
	switch(msg)
		{
			case U8X8_MSG_DELAY_MILLI://Function which implements a delay, arg_int contains the amount of ms
				Delayxms(arg_int);
			break;
		
			case U8X8_MSG_DELAY_10MICRO://Function which delays 10us
				Delayxus(10);
			break;
		
			case U8X8_MSG_DELAY_100NANO://Function which delays 100ns
				__NOP();
			break;
			case U8X8_MSG_GPIO_I2C_CLOCK:
				if (arg_int) GPIO_WriteBit(GPIOB, GPIO_Pin_8,Bit_SET );
				else GPIO_WriteBit(GPIOB, GPIO_Pin_8,Bit_RESET );
			break;
			case U8X8_MSG_GPIO_I2C_DATA:
				if (arg_int) GPIO_WriteBit(GPIOB, GPIO_Pin_9, Bit_SET);
				else GPIO_WriteBit(GPIOB, GPIO_Pin_9, Bit_RESET);
			break;
			default:
				return 0; //A message was received which is not implemented, return 0 to indicate an error
	}
	return 1; // command processed successfully.
}
void u8g2_init(void)
{
    u8g2_Setup_ssd1306_i2c_128x64_noname_f(&u8g2, U8G2_R0, u8x8_byte_sw_i2c,  gpio_and_delay_stm32);
    u8g2_InitDisplay(&u8g2); 
	u8g2_SetPowerSave(&u8g2, 0); 
	u8g2_ClearBuffer(&u8g2);
}

void draw(u8g2_t *u8g2)
{
	u8g2_ClearBuffer(u8g2); 
    u8g2_SetFontMode(u8g2, 1); 
    u8g2_SetFontDirection(u8g2, 0); 
    u8g2_SetFont(u8g2, u8g2_font_inb24_mf);
    u8g2_DrawStr(u8g2, 0, 20, "U");
    
    u8g2_SetFontDirection(u8g2, 1);
    u8g2_SetFont(u8g2, u8g2_font_inb30_mn);
    u8g2_DrawStr(u8g2, 21,8,"8");
        
    u8g2_SetFontDirection(u8g2, 0);
    u8g2_SetFont(u8g2, u8g2_font_inb24_mf);
    u8g2_DrawStr(u8g2, 51,30,"g");
    u8g2_DrawStr(u8g2, 67,30,"\xb2");
    
    u8g2_DrawHLine(u8g2, 2, 35, 47);
    u8g2_DrawHLine(u8g2, 3, 36, 47);
    u8g2_DrawVLine(u8g2, 45, 32, 12);
    u8g2_DrawVLine(u8g2, 46, 33, 12);
  
    u8g2_SetFont(u8g2, u8g2_font_4x6_tr);
    u8g2_DrawStr(u8g2, 1,54,"github.com/olikraus/u8g2");
//	u8g2_ClearDisplay(u8g2);
	u8g2_SendBuffer(u8g2);
	Delayxms(1000);
}

移植的代码链接:

链接：https://pan.baidu.com/s/1TfzhoXhK8OaRLax6CmnC6Q?pwd=tikd
提取码：tikd
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