这一篇给大家介绍一下STM32的I2C总线通信方式,最后通过操作OLED来进行演示。
目前网上流传的OLED操作方式大同小异,基本都是同一个模子刻出来的,笔者在使用OLED店家给的测试程序时发现屏幕的刷新率不是很令人满意,每次刷新OLED时总会出现“闪屏”,影响OLED的显示效果,这对于后面想用STM32配合OLED做小游戏的笔者来说无法忍受,因此这一篇将通过分析SSD1306芯片手册(OLED控制芯片)来介绍更加高效的操作方式。
STM32F103C8T6有2个I2C总线通信接口,其内部结构如下图所示:
具有以下特点:
好了,上面其实都是废话,主要是对STM32的I2C总线模块功能的简介,具体的功能介绍可以参考手册中的I2C functional description。
STM32程序开发正确的方式应该是确定所需要用到的外设,然后了解外设功能,确定具体要使用什么样的功能,最后对照寄存器结合库函数手册,确定外设初始化和控制的程序设计,最后编程调试。
在手册中,主机发送模式如下:
可知I2C主机模式下,发送格式为:
下面对I2C总线的寄存器进行介绍,结合寄存器可以更进一步了解上面的通信格式:
I2C_CR2为I2C总线的控制寄存器2:
主要为DMA与中断设置,这里我们用不到:
I2C_DR为数据寄存器,I2C总线以字节为单位传输数据,发送模式时将数据写入这个寄存器,接收模式时接收到的数据将会被复制到这个寄存器:
I2C_SR1状态寄存器1,这里主要关注几个和数据传输过程有关的寄存器:
I2C_TRISE上升时间控制寄存器。
同样,官方库中提供了用于I2C初始化的结构体,初始化函数如下:
/**
* @brief initialize i2c1
* @param None
* @return None
*/
void I2C1_Config(void)
{
GPIO_InitTypeDef PB67InitStruct;
I2C_InitTypeDef I2C1InitStruct;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
PB67InitStruct.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
PB67InitStruct.GPIO_Mode = GPIO_Mode_AF_OD;
PB67InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &PB67InitStruct);
I2C1InitStruct.I2C_Mode = I2C_Mode_I2C;
I2C1InitStruct.I2C_DutyCycle = I2C_DutyCycle_2;
I2C1InitStruct.I2C_Ack = I2C_Ack_Enable;
I2C1InitStruct.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C1InitStruct.I2C_ClockSpeed = 400000;
I2C_Init(I2C1, &I2C1InitStruct);
I2C_Cmd(I2C1, ENABLE);
}
这里首先将PB6(SCL)、PB7(SDA)引脚初始化为I2C通信引脚,然后对I2C初始化结构体赋值,调用I2C_Init()函数进行初始化设置,最后调用I2C_Cmd()函数使能I2C1。
这里给出I2C读写的函数,详细说明见注释,请对照上面的通信格式进行理解:
/**
* @brief i2c1 write data
* @param slave_addr - I2C slave device address
* @param reg_addr - I2C slave device register address
* @param length - Length of data to be written
* @param pdata - Data buf pointer
* @return 0 if success
*/
int8_t I2C1_Write(uint8_t slave_addr, uint8_t reg_addr, uint16_t length, uint8_t *pdata)
{
if(!length)
return 0;
// 等待I2C总线空闲
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
// 发出Start信号并检测EV5
I2C_GenerateSTART(I2C1, ENABLE);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
// 发送地址并检测EV6
I2C_Send7bitAddress(I2C1, slave_addr, I2C_Direction_Transmitter);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
// 发送数据(寄存器地址或命令,一般来说,向I2C通信对应的设备发送数据,是对其某个寄存器发送数据,或者发送对应的命令及数据),并检测EV8
I2C_SendData(I2C1, reg_addr);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
// 继续发送数据,并检测EV8
while(length--)
{
I2C_SendData(I2C1, *pdata);
pdata++;
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
}
// 发送Stop信号
I2C_GenerateSTOP(I2C1, ENABLE);
return 0;
}
/**
* @brief i2c1 read data
* @param slave_addr - I2C slave device address
* @param reg_addr - I2C slave device register address
* @param length - Length of data to be read
* @param pdata - Data buf pointer
* @return 0 if success
*/
int8_t I2C1_Read(uint8_t slave_addr, uint8_t reg_addr, uint16_t length, uint8_t *pdata)
{
if(!length)
return 0;
// 等待I2C总线空闲
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
// 发出Start信号并检测EV5
I2C_GenerateSTART(I2C1, ENABLE);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
// 发送地址并检测EV6
I2C_Send7bitAddress(I2C1, slave_addr, I2C_Direction_Transmitter);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
// 发送数据(寄存器地址或命令),并检测EV8
I2C_SendData(I2C1, reg_addr);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
// 发出Start信号并检测EV5
I2C_GenerateSTART(I2C1, ENABLE);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
// 发送地址并检测EV6
I2C_Send7bitAddress(I2C1, slave_addr, I2C_Direction_Receiver);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
// 检测EV7,读取数据并发出应答信号
while(length--)
{
if(!length)
I2C_AcknowledgeConfig(I2C1, DISABLE);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_RECEIVED));
*pdata = I2C_ReceiveData(I2C1);
pdata++;
}
I2C_AcknowledgeConfig(I2C1, ENABLE);
// 发出Stop信号
I2C_GenerateSTOP(I2C1, ENABLE);
return 0;
}
注意这里的读写函数仅作为示范,具体的读写函数应该根据通信设备的协议要求进行编写。
至此,STM32的I2C总线通信已经完成,接下来就是对照OLED手册进行OLED程序设计了。
笔者用的是一块从箱子里翻出来不知道什么时候买的OLED(保护膜居然还没舍得揭掉),大小为128*64,查了查资料,找到了驱动芯片SSD1306的手册,因此,对OLED进行控制主要是和SSD1306这块芯片进行数据通信。
SSD1306芯片提供了4种通信方式:
笔者这块OLED将SSD1306芯片的I2C接口引出,因此通过I2C接口对其进行控制,下面根据SSD1306的手册对此进行介绍。
根据电路,SA0(D/C#引脚接地)为0,因此,Slave Address取0b01111000,即0x78。
注意这里的是在一次I2C通信中,可以接收多个命令与数据,因此找到了提高刷新率的方法。
b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
---|---|---|---|---|---|---|---|
Co | D/C | 0 | 0 | 0 | 0 | 0 | 0 |
因此:
GDDRAM全称Graphic Display Data RAM,为SSD1306内部的数据内存,SSD1306通过Common Driver驱动OLED显示,可以理解为OLED显示的图像跟随GDDRAM里的内容(当然也可以设置不跟随,用于刷新处理),下图为SSD1306驱动OLED显示屏的逻辑关系:
在上电初始化后,SSD1306默认设置为COM0驱动Row0,COM63驱动Row63(后续可以设置);COM驱动对应内部GDDRAM关系如下:
GDDRAM共分为8个Page,每个Page对应8个COM,每个COM驱动一行OLED显示,即共64行;而一个COM驱动内有128列(Segment),组成128*64OLED点阵驱动:
总结如下:
至此,我们弄清楚了GDDRAM里数据和OLED显示的关系。
这里按照SSD1306手册上的Command Table中的命令出现顺序进行介绍。
格式 | 命令 | 数据 |
---|---|---|
- | 0x81 | 对比度(0~255) 默认值为0x7F(127) |
这个命令首先发送命令字节0x81,然后再发送对比度数据。
实际上是设置OLED的驱动电流,对比度设置越大,驱动电流越大,显示效果就越亮。
格式 | 命令 | 数据 |
---|---|---|
- | 0xA4:OLED显示跟随GDDRAM 0xA5:OLED显示固定,不跟随GDDRAM 默认为0xA4 |
无 |
这个命令只需发送命令字节0xA4或0xA5,可以设置OLED的显示内容是否跟随GDDRAM内容变化。
格式 | 命令 | 数据 |
---|---|---|
- | 0xA6:正常显示,即GDDRAM中1表示显示,0表示不显示 0xA7:反转显示,即GDDRAM中0表示显示,1表示不显示 默认为0xA6 |
无 |
这个命令只需发送命令字节0xA6或0xA7,可以设置OLED的显示反色。
格式 | 命令 | 数据 |
---|---|---|
- | 0xAE:关闭显示,进入睡眠模式 0xAF:开启显示 默认为0xAE |
无 |
这个命令只需发送命令字节0xAE或0xAF,可以设置OLED是否开启显示。
暂时不需要使用
格式 | 命令 | 数据 |
---|---|---|
- | 0x00~0x0F 默认为0x00 |
无 |
这个命令设置在页寻址(Page Addressing)模式下列起始地址的低4位。
这个命令仅在页寻址模式下有效。
格式 | 命令 | 数据 |
---|---|---|
- | 0x10~0x1F 默认为0x10 |
无 |
这个命令设置在页寻址(Page Addressing)模式下列起始地址的高4位,和上一命令一起指定页寻址模式下的起始列地址。
这个命令仅在页寻址模式下有效。
格式 | 命令 | 数据 |
---|---|---|
- | 0x20 | 0x00:Horizontal Addressing Mode 行寻址模式 0x01:Vertical Addressing Mode 列寻址模式 0x02:Page Addressing Mode 页寻址模式 默认为0x02 |
这个命令首先发送0x20命令字节,然后发送寻址模式选择字节,各寻址模式如下:
格式 | 命令 | 数据1 | 数据2 |
---|---|---|---|
- | 0x21 | 0~127 默认为0 |
0~127 默认为127 |
这个命令首先发送0x21命令字节,然后发送2个数据字节用于设定列的起始和结束地址。
此命令仅在行/列寻址模式下有效。
格式 | 命令 | 数据1 | 数据2 |
---|---|---|---|
- | 0x22 | 0~7 默认为0 |
0~7 默认为7 |
这个命令首先发送0x22命令字节,然后发送2个数据字节用于设定页的起始和结束地址。
此命令仅在行/列寻址模式下有效。
这个命令结合上一个命令,可以在显示区域设定一个窗口进行数据寻址刷新,如下图:
格式 | 命令 | 数据 |
---|---|---|
- | 0xB0~0xB7 默认为0xB0 |
无 |
这个命令用于设置页寻址模式下的页起始地址。结合命令4.3.1和4.3.2,可以设置页寻址模式下一页的数据寻址刷新,如下图设置起始页为Page2,起始列为3:
这里的命令主要是设置硬件映射关系等。
格式 | 命令 | 数据 |
---|---|---|
- | 0x40~0x7F 对应0-63行 默认为0x40,第0行 |
无 |
这个命令设置显示的起始行。
格式 | 命令 | 数据 |
---|---|---|
- | 0xA0:Column 0 映射到 SEG0 0xA1:Column 127 映射到 SEG0 默认为0xA0 |
无 |
此命令设置列(Column)对应Segment的映射,即从左到右刷新数据还是从右到左刷新数据,需要根据实际显示情况进行设置,如果不知道怎么设置,可以先设置为默认值,根据显示情况进行调整。
格式 | 命令 | 数据 |
---|---|---|
- | 0xA8 | 0x10~0x3F 对应15+1 ~ 63+1 默认为63 |
这个命令设置通道数,应该选取默认63即可。
格式 | 命令 | 数据 |
---|---|---|
- | 0xC0:从COM0扫描到COM N 0xC8:从COM N扫描到COM0 默认为0xC0 |
无 |
这个命令设置Common Driver的扫描方向,也就是OLED从上往下扫描还是从下往上扫描,需要根据具体的显示情况设置。
格式 | 命令 | 数据 |
---|---|---|
- | 0xD3 | 0~63 默认为0 |
这个命令设置COM的偏移值,一般设置为0,保证屏幕的完整显示。
这个命令可以用于更为复杂的屏幕显示,如使屏幕从中间开始刷新;这里保持默认设置即可。
格式 | 命令 | 数据 |
---|---|---|
- | 0xDA | A[3:0]:设置时钟分频比 A[7:4]:设置时钟频率,值越大频率越高 |
这里为了让OLED能够更快地刷新,可以设置为0xF0,即分频比为1,频率最高。
这个命令设定预充电时间,这里保持默认值0x22即可。
这里保持默认0x20即可。
格式 | 命令 | 数据 |
---|---|---|
- | 0xE3 | 无 |
空操作。
根据第1节中的I2C通信格式图示,可以知道,在一次I2C通信中,SSD1306是可以接收多个命令和数据的,因此,为了方便扩展一次I2C通信,这里将I2C起始、发送命令/数据、I2C停止分别设置成函数:
I2C通信发起函数:
/**
* @brief OLED write mode initiates
* @param oled_addr - OLED slave address
* @return None
*/
static __INLINE void OLED_WriteInitiates(uint8_t oled_addr)
{
// 等待I2C总线空闲
while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
// 发出Start信号并检测EV5
I2C_GenerateSTART(I2C1, ENABLE);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
// 发送地址(0x78)并检测EV6
I2C_Send7bitAddress(I2C1, oled_addr, I2C_Direction_Transmitter);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
}
I2C写命令函数: 发送Control Byte
/**
* @brief OLED write mode data format
* @param ctrl_byte - 0x80 write cmd, 0x40 write only data
* @return None
*/
static __INLINE void OLED_WriteCtrlByte(uint8_t ctrl_byte)
{
// 发送Control Byte并检测EV8
I2C_SendData(I2C1, ctrl_byte);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
}
I2C写数据函数: 发送命令字节或者数据字节
/**
* @brief OLED write mode data format
* @param data - cmd or data
* @return None
*/
static __INLINE void OLED_WriteDataByte(uint8_t data)
{
// 发送数据并检测EV8
I2C_SendData(I2C1, data);
while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
}
I2C通信结束函数:
/**
* @brief OLED write mode finish
* @param None
* @return None
*/
static __INLINE void OLED_WriteFinish(void)
{
// 发出Stop信号
I2C_GenerateSTOP(I2C1, ENABLE);
}
根据对SSD1306命令字节的分析,给出初始化流程如下:
初始化函数如下:
/**
* @brief OLED configuration
* set OLED as page addressing mode
* @param None
* @return None
*/
void OLED_Config(void)
{
uint8_t i;
uint8_t ctrl[] = {
OLED_Display_OFF,
OLED_MultiRatio, 0x3F,
OLED_OscFreq, 0xF0,
OLED_SEG0MAP127, // left to right
OLED_COMScan_Remap, // top
OLED_COMHardwareConfig, 0x10,
OLED_Addressing_Mode, OLED_Addressing_Mode_Page,
OLED_ColStartAddrLow(0), OLED_ColStartAddrHigh(0),
OLED_DisplayStartLine(0),
OLED_Display_Offset, 0x00,
OLED_Contrast, 0x7F,
OLED_Display_FollowRAM,
OLED_Display_Normal,
OLED_PreChargePeriod, 0x22,
OLED_VcomhDeselectLevel, 0x20,
OLED_ChargePump, OLED_ChargePump_ON,
OLED_Display_ON
};
OLED_WriteInitiates(OLED_ADDRESS);
for(i=0; i<27; i++)
{
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(ctrl[i]);
}
OLED_WriteFinish();
}
其中宏定义在oled.h文件中:
/* Defines -------------------------------------------------------------------*/
#define OLED_ADDRESS 0x78
#define OLED_WRITE_CMD 0x80
#define OLED_WRITE_DATA 0x40
/** @defgroup OLED Fundamental Command
* @{
*/
#define OLED_Display_OFF 0xAE
#define OLED_Display_ON 0xAF
#define OLED_Display_FollowRAM 0xA4
#define OLED_Display_IgnoreRAM 0xA5
#define OLED_Display_Normal 0xA6
#define OLED_Display_Inverse 0xA7
#define OLED_Contrast 0x81
/** @defgroup OLED Charge Pump Command
* @{
*/
#define OLED_ChargePump 0x8D
#define OLED_ChargePump_ON 0x14
#define OLED_ChargePump_OFF 0x10
/** @defgroup OLED Addressing Setting Command
* @{
*/
#define OLED_Addressing_Mode 0x20
#define OLED_Addressing_Mode_Horizontal 0x00
#define OLED_Addressing_Mode_Vertical 0x01
#define OLED_SetColumnAddress 0x21
#define OLED_SetPageAddress 0x22
#define OLED_Addressing_Mode_Page 0x02
#define OLED_ColStartAddrLow(x) (x&0x0F)
#define OLED_ColStartAddrHigh(x) ((x&0x0F)|0x10)
#define OLED_PageStartAddress(x) ((x&0x07)|0xB0)
/** @defgroup OLED Scrolling Command
* @{
*/
/** @defgroup OLED Hardware Configuration Command
* @{
*/
#define OLED_MultiRatio 0xA8
#define OLED_OscFreq 0xD5
#define OLED_SEG0MAP0 0xA0
#define OLED_SEG0MAP127 0xA1
#define OLED_COMScan_Normal 0xC0
#define OLED_COMScan_Remap 0xC8
#define OLED_COMHardwareConfig 0xDA
#define OLED_DisplayStartLine(x) ((x&0x3F)|0x40)
#define OLED_Display_Offset 0xD3
#define OLED_PreChargePeriod 0xD9
#define OLED_VcomhDeselectLevel 0xDB
#define OLED_NOP 0xE3
这里需要注意的是,在OLED初始化中设置寻址方式为页寻址,但经笔者测试,页寻址在一次I2C通信中只能更新一页的GDDRAM数据,不适合用于整个屏幕的更新,因此在进行整个OLED屏幕更新时,可以选择行寻址方式,如下是OLED刷新函数:
/* Global variables ----------------------------------------------------------*/
uint8_t OLED_GDDRAM[8][128];
/**
* @brief OLED set GDDRAM data
* @param data
* @return None
*/
void OLED_SetGDDRAM(uint8_t data[])
{
uint8_t i, j;
for(i=0; i<8; i++)
for(j=0; j<128; j++)
OLED_GDDRAM[i][j] = data[i*128+j];
}
/**
* @brief OLED fill GDDRAM data
* @param data
* @return None
*/
void OLED_FillGDDRAM(uint8_t data)
{
uint8_t i, j;
for(i=0; i<8; i++)
for(j=0; j<128; j++)
OLED_GDDRAM[i][j] = data;
}
/**
* @brief OLED refresh according to GDDRAM
* using horizontal addressing mode to refresh display
* only start one I2C process for short refresh time
* @param None
* @return None
*/
void OLED_Refresh(void)
{
uint8_t i, j;
OLED_WriteInitiates(OLED_ADDRESS);
// 设置为行寻址方式:Horizontal
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(OLED_Addressing_Mode);
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(OLED_Addressing_Mode_Horizontal);
// 设置列地址为0~127
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(OLED_SetColumnAddress);
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(0);
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(127);
// 设置页地址为0~7
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(OLED_SetPageAddress);
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(0);
OLED_WriteCtrlByte(OLED_WRITE_CMD);
OLED_WriteDataByte(7);
// 发送数据写入Control Byte,并写入数据
OLED_WriteCtrlByte(0x40);
for(i=0; i<8; i++)
for(j=0; j<128; j++)
OLED_WriteDataByte(OLED_GDDRAM[i][j]);
OLED_WriteFinish();
}
笔者利用取字模软件保存了两张图片数据在main.c文件中,并在while循环中交替更新GDDRAM数据进行显示:
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "i2c.h"
#include "oled.h"
#include "delay.h"
uint8_t bmp1[] = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0xF0,0xF0,0xE0,0xF0,0xF0,0xE0,0xE0,0xF8,0xFF,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0xF8,0xFC,0xFE,0xF2,0xB0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x07,0x0F,0x1F,0x3F,0x7F,0x7F,0xFF,0xFF,0xFF,0xFF,0xFE,0xFC,0xFC,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xCC,0xFE,0xFF,0xFF,0xFF,0xFF,0x03,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0xE1,0xFF,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x03,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x07,0xFF,0xFF,0xFF,0xFF,0x07,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7B,0xF0,0x00,0xC0,0xF8,0xFF,0xDF,0x87,0x06,0x04,0x60,0xE0,0xE0,0xE0,0xC0,0xC0,0xC0,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0xC0,0xC0,0xC0,0xC0,0xE0,0xE4,0xF3,0x73,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x1F,0x7F,0xFF,0xFF,0xFE,0xF8,0x80,0x00,0x00,0x01,0x01,0x01,0x03,0x03,0x03,0x03,0x03,0x03,0x07,0x03,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x03,0x03,0x03,0x03,0x03,0x03,0x01,0x01,0x01,0x01,0xC0,0xE0,0x78,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x0C,0xF9,0xE3,0x0F,0x1F,0x7F,0xF8,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x07,0x3F,0xFC,0xF0,0xC0,0x01,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x03,0x06,0x00,0x00,0x0E,0x78,0xF0,0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
uint8_t bmp2[] = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x3F,0x3E,0xFF,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x07,0x7F,0x41,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0xC1,0x41,0x7F,0x07,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x7F,0xC0,0x7E,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x52,0xF8,0x0F,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xE0,0xE0,0x8D,0x18,0x4B,0x8A,0xB4,0x04,0x08,0x10,0x10,0x10,0x20,0x20,0x20,0x60,0x60,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x60,0x60,0xA0,0x20,0x20,0x10,0x10,0x10,0x08,0x4C,0x02,0x92,0x49,0x38,0x0F,0xC2,0xE0,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xE7,0x0C,0x38,0xE0,0x80,0x00,0x01,0x01,0x00,0x02,0x02,0x02,0x02,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,0x01,0x01,0x80,0xC0,0x70,0x1C,0x87,0x53,0xFB,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x81,0xCE,0x40,0x58,0xE3,0x4F,0x3C,0xE8,0x10,0x20,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x10,0xC8,0x74,0x1E,0x07,0xC1,0x60,0xD0,0xEF,0xF1,0x1E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0xC0,0x60,0x20,0x30,0x18,0x08,0x0C,0x04,0x06,0x02,0xE3,0x03,0x01,0x81,0x00,0x00,0x03,0x18,0x61,0xC3,0x11,0x61,0x07,0x1C,0x70,0xE3,0x16,0x58,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x5C,0xA2,0x60,0x30,0x1E,0x63,0x40,0x82,0x41,0x30,0x0E,0x01,0x00,0x00,0x39,0x03,0x03,0x02,0x06,0x04,0x0C,0x08,0x18,0x10,0x30,0x60,0xC0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x40,0x40,0xC0,0x70,0x1C,0xC7,0x31,0x0C,0x02,0x00,0xE0,0x0C,0x04,0x00,0x02,0x78,0x40,0x40,0x41,0xE0,0x80,0x5F,0x20,0x10,0x18,0x0C,0x02,0x81,0x40,0x44,0x49,0x96,0x28,0x48,0x88,0x08,0x05,0x1E,0x20,0x44,0x44,0x44,0x04,0x04,0x44,0x44,0x44,0x40,0x34,0x07,0x00,0x08,0x88,0x08,0x84,0x52,0x4C,0x42,0x81,0x82,0x04,0x08,0x10,0x20,0x4F,0x80,0xA0,0x6C,0x40,0x00,0x40,0x26,0x02,0x04,0x04,0x70,0x80,0x00,0x06,0x19,0x63,0x1E,0x70,0xC0,0x00,0x40,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0x40,0x20,0x30,0x10,0x18,0x88,0x8C,0x04,0x40,0xFC,0x0E,0x03,0x01,0x03,0x00,0x01,0x18,0x04,0x83,0xDC,0x42,0x25,0x10,0x48,0x40,0x05,0x85,0x80,0x80,0x80,0x00,0x02,0x00,0x00,0x01,0x01,0xC1,0x9F,0x82,0x80,0x80,0x80,0x80,0x83,0x82,0x80,0x84,0x04,0x84,0xCC,0x20,0x11,0x0D,0x09,0x0F,0x05,0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x06,0x05,0x0D,0x0F,0x0D,0x15,0x30,0xCC,0x84,0x04,0x84,0x80,0x82,0x83,0x80,0x80,0x80,0x80,0x82,0x87,0xF1,0x01,0x01,0x00,0x00,0x02,0x02,0x80,0x80,0x80,0x80,0x05,0x40,0x48,0x00,0x35,0x62,0xDC,0xB1,0x06,0x18,0x01,0x00,0x02,0x01,0x03,0x07,0xFE,0xC0,0x04,0x84,0x88,0x18,0x10,0x30,0x20,0x40,0xC0,0x00,0x00,0x00,
};
int main(void)
{
I2C1_Config();
delay_ms(100);
OLED_Config();
while(1)
{
OLED_SetGDDRAM(bmp1);
OLED_Refresh();
delay_ms(1000);
OLED_SetGDDRAM(bmp2);
OLED_Refresh();
delay_ms(1000);
}
}
编译下载运行,结果如下: