stc8h8k64u利用硬件SPI模式驱动ST7567液晶12864屏幕

nokia5320 · 发表于 19 小时前

本帖最后由 nokia5320 于 2025-7-26 01:09 编辑

2023年在数码之家论坛申请了开天斧三的开发板，试了一次就吃灰了。前几天打算做个小东西，利用红包买了几个STC8H8K64U的单片机，之前大学就玩过STC89系列的，看了下stc8系列的使用前要初始化引脚，因为没系统学过，在这里载了大跟头。买了本丁向荣老师的“单片微机原理与接口技术-基于stc8h8k64u”，感觉比文档分了条理。拿出来在数码之家那里收集的屏幕，就是建设银行优盾拆的屏幕 ST7567，128x64像素，带背光很适合再次利用。

cog是st7567已经明确了，驱动就好办了。但是之前一直是89系列模拟SPI时序驱动，这次想玩玩硬件驱动的，可惜《单片微机原理与接口技术-基于stc8h8k64u》里的范例给的是SPI管理25系列ROM，可以参考但有限，网上搜也没找到这个型号的，那就自己折腾。

// 单片机和液晶引脚连接
LCD_CS = P2^0; // 片选 (CS)
LCD_RST = P2^1; // 复位 (RST)
LCD_DC = P1^0; // 数据/命令选择 (A0/DC)
LCD_SCL=P2^5 LCD_SDA=P2^3

注意st6567电压1.8--3.3v，开天斧三5v输入 5 or 3.3v作为系统电压，按道理可以直接改3.3v，但是后续实验万一需要两路电压呢，所以直接在1117 3.3v的输出电容上焊接了3.3v插针，作为lcd的供电。这个板子为啥没提前预留。

st7567.c文件：

#include "STC8H.H"
#include "font16.h"
// 引脚定义
sbit LCD_CS = P2^0; // 片选 (CS)
sbit LCD_RST = P2^1; // 复位 (RST)
sbit LCD_DC = P1^0; // 数据/命令选择 (DC)
// LCD_SCL=P2^5 LCD_SDA=P2^3
extern void delay_ms(unsigned int ms);
extern void delay_us(unsigned int ms);
/******************** SPI初始化函数（优化CS控制） ********************/
void SPI_Init() {
// 1. 开启扩展寄存器访问
P_SW2 = 0x80; // EAXFR=1
// 2. 配置SPI引脚组选择
P_SW1 = 0x04; // SPI_S[1:0]=01,选择第二组(P2.2/3/4/5)
// 3. 配置SPI控制寄存器
SPCTL = 0xDC; // 11011100:
// SPEN=1, SSIG=1, CPHA=0, CPOL=1, MSTR=1
// DORD=0, SPR1=1, SPR0=0 -> F_OSC/16 (24MHz/16=1.5MHz)
// 4. 配置引脚模式
P2M0 = 0x2B; // 00101011: P2.0(CS), P2.1(RST), P2.3(MOSI), P2.5(SCLK)推挽输出
P2M1 = 0x00; // 所有P2引脚设置为模式0（推挽输出）
P1M0 = 0x01; // P1.0(DC)推挽输出
P1M1 = 0x00; // 所有P1引脚设置为模式0（推挽输出）
// 5. 初始状态设置
LCD_CS = 1; // 初始片选无效
LCD_DC = 0; // 命令模式
LCD_RST = 1; // 不复位
SPDAT = 0; // 清空数据寄存器
SPSTAT = 0xC0; // 清除状态标志
// 6. 关闭扩展寄存器访问
P_SW2 = 0x00; // EAXFR=0
}
/******************** SPI发送函数 ********************/
void SPI_SendByte(unsigned char dat) {
SPDAT = dat; // 写入数据
while (!(SPSTAT & 0x80)); // 等待传输完成
SPSTAT = 0xC0; // 清除标志位
}
/******************** LCD写命令函数（简化CS） ********************/
void LCD_Write_Command(unsigned char cmd) {
LCD_DC = 0; // 命令模式
SPI_SendByte(cmd); // 发送命令
delay_us(1); // 短延时确保稳定
}
/******************** LCD写数据函数（简化CS） ********************/
void LCD_Write_Data(unsigned char dat) {
LCD_DC = 1; // 数据模式
SPI_SendByte(dat); // 发送数据
delay_us(1);
}
/******************** lcd显示清屏 ********************/
void LCD_Claer() {
unsigned char x,y;
for(y=0;y<8;y++)
{
LCD_Write_Command(0xb0+y);//页地址
LCD_Write_Command(0x00);//低地址
LCD_Write_Command(0x10);//高地址
for(x=0;x<128;x++)
LCD_Write_Data(0x00);
}
}
/******************** LCD初始化函数（优化CS控制） ********************/
void LCD_Init() {
// 硬件复位
LCD_RST = 0;
delay_us(15);
LCD_RST = 1;
delay_us(15);
// 开始通信：永久拉低CS
LCD_CS = 0;
// 初始化序列
LCD_Write_Command(0xE2); // 软复位
delay_us(100);
LCD_Write_Command(0xA2); // 1/9 bias
LCD_Write_Command(0xA0); // ADC正常方向
LCD_Write_Command(0xC8); // COM输出反向
LCD_Write_Command(0xA4); // 正常显示（非全亮）
LCD_Write_Command(0xA6); // 正常显示（非反白）
LCD_Write_Command(0x24); // V0电阻设置
// 对比度设置
LCD_Write_Command(0x81);
LCD_Write_Command(0x28); // 对比度值
// 升压电路设置
LCD_Write_Command(0xF8);
LCD_Write_Command(0x00); // 升压比2x
// 分步开启电源
LCD_Write_Command(0x2C); // Booster on
delay_us(22);
LCD_Write_Command(0x2E); // Regulator on
delay_us(22);
LCD_Write_Command(0x2F); // Follower on
delay_us(8);
LCD_Claer() ;
LCD_Write_Command(0x40); // 显示起始行0
LCD_Write_Command(0xAF); // 开启显示
}
/******************** 设置显示位置 ********************/
void LCD_SetPosition(unsigned char x, unsigned char y) {
LCD_Write_Command(0xB0 | y); // 设置页地址
LCD_Write_Command(0x10 | (x >> 4)); // 设置列地址高4位
LCD_Write_Command(x & 0x0F); // 设置列地址低4位
}
/******************** 显示字符调用font文件的函数 ********************/
//x横坐标，y页地址=纵坐标除以8，注意每个字符高度占用16bit=2page，最多完整显示4page，y不是座标！
//如果用font文件，那么只能完美显示4行y=0-1，2-3，4-5，6-7page.bit 这个参数是反显一个像素，没有用st7567的命令而是用像素取反运算
void Display_Char(unsigned char x, unsigned char y, unsigned char ch_index,bit b) {
unsigned char i;
LCD_SetPosition(x, y);
ch_index= ch_index-32;
for(i=0;i<8;i++)
{
if(b)
LCD_Write_Data(~F8X16[ch_index*16+i]);
else
LCD_Write_Data(F8X16[ch_index*16+i]);
}//P8x16上半部分显示
LCD_SetPosition(x,y+1);
for(i=0;i<8;i++)
{
if(b)
LCD_Write_Data(~F8X16[ch_index*16+i+8]);
else
LCD_Write_Data(F8X16[ch_index*16+i+8]);
}//P8x16下半部分显示
}
/******************** 显示字符串调用font文件的函数 ********************/
/*函数名称：Display_Chars
功能：Lcd显示字符串
输入：x坐标，y坐标其实是8y行，因为每Page占用8行，字符串，b反显
输出：无
备注：x<=128，y<=64
*********************************/
void Display_Chars(unsigned char x,y,unsigned char *ch,bit b)
{
while(*ch!='\0')
{
if(x>120){x=0;y+=2;}//如果x在最右边，则回到左边且下移1页=8行
Display_Char(x,y,*ch++,b);
x+=8;
}
}
/*********************************
函数名称：Display_pic
功能：Lcd显示图片
输入：x起始坐标，y起始坐标，x终止坐标，y终止坐标，图片数组
输出：无
备注：x<=128，y<=64，x1<x2，y1<y2
*********************************/
void Display_pic(unsigned char x0,y0,x1,y1,unsigned char *pic)
{
unsigned char x,y;
if(y1%8==0) y=y1/8;
else y=y1/8+1;
for(y=y0;y<y1;y++)
{
LCD_SetPosition(x0,y);
for(x=x0;x<x1;x++)
{
LCD_Write_Data(*pic++);
}
}
}

复制代码

CPHA=0, CPOL=1, 我的理解是这样的：（为了简单测试成功。我采用单片机做主机，lcd从机，忽略ss引脚，cs一直拉低）

LCD_Init里初始化st7567的参数是来自数码之家 ID：lizi 的st7565源码，修改了对比度值为0x28，
Display_Char函数是为了显示font16.h文件内字符设计的。Display_Chars顾名思义显示字符串，

main.c文件：

#include "STC8H.H"
#include <intrins.h>
#include "ST7567.H"
unsigned char code BMP0[1024] = { /* 单色bmp文件，不要文件头信息,此图片是数码之家logo */
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};
//// 简单延时函数//@24.000MHz
void delay_ms(unsigned int ms) {
unsigned char data i, j;
while(ms--){
i = 24;
j = 85;
do
{
while (--j);
} while (--i);}
}
void delay_us(unsigned int us) //@24.000MHz
{
unsigned char data i;
while(us--){
_nop_();
_nop_();
i = 3;
while (--i);}
}
/******************** 主函数 ********************/
void main() {
/* 时钟设置 */
// P_SW2 = 0x80; // 开启扩展寄存器访问
//
// // 设置24MHz主时钟
// IRCBAND = 0x01; // 内部24MHz时钟
//
// // 时钟分频器设置
// #if defined(CLKDIV)
// CLKDIV = 0x00; // 不分频
// #elif defined(CKDIV)
// CKDIV = 0x00; // 不分频
// #else
// // 直接地址访问作为备选
// unsigned char xdata *clkdiv = (unsigned char xdata *)0xFE00;
// *clkdiv = 0x00;
// #endif
P_SW2 = 0x00; // 关闭扩展寄存器访问
SPI_Init(); // 初始化SPI
LCD_Init(); // 初始化LCD
// 显示"HELLO"
// Display_Char(0,0,'H',1); Display_Char(0,2,'e',0);
// Display_Char(0,4,'&',1); Display_Char(0,6,'@',0);
// Display_Chars(8,3,"hello,STC8H",0);
Display_pic(0,0,128,8,BMP0);
while(1) {
// 主循环
Display_pic(0,0,128,8,BMP0);
delay_ms(1000);LCD_Claer();
Display_Chars(0,0,"hello,STC8H8K64U",0);
Display_Chars(0,2," ST7567-SPI ",1);
Display_Chars(0,4,"www.mydigit.cn",0);
delay_ms(1000);LCD_Claer();
}
}

复制代码

字模头文件：font16.h

/*
常用字母及其符号字模，8*16像素大小。使用时每个显示的字符占用16Byte，分为上下半部分显示，
前8Byte是字符上半部分，后8Byte是下班部分。和ascii的顺序相差32，所以要显示的ascii
ascii[n]= F8X16[n-32]
*/
code unsigned char F8X16[]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//[url=home.php?mod=space&uid=3057940]@[/url] 32
0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
//unsigned char code F16x16[]={
//};

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ST7567.h文件

#ifndef _ST7565_H
#define _ST7565_H
#include <STC8h.h>
extern void delay_ms(unsigned int ms);
extern void delay_us(unsigned int us);
void SPI_Init();
void SPI_SendByte(unsigned char dat);
void LCD_Write_Command(unsigned char cmd);
void LCD_Write_Data(unsigned char dat);
void LCD_Claer();
void LCD_Init();
void LCD_SetPosition(unsigned char x, unsigned char y);
void Display_Char(unsigned char x, unsigned char y, unsigned char ch_index,bit b);
void Display_Chars(unsigned char x,y,unsigned char *ch,bit b);
void Display_pic(unsigned char x0,y0,x1,y1,unsigned char *pic);
//void Lcd_P8x16char(unsigned char x,y,char_,bit b);
//void Lcd_P8x16Str(unsigned char x,y,unsigned char *ch,bit b);
//void Lcd_P16x16Ch(unsigned char x, y, N);
#endif

复制代码

最终显示效果：显示数码之家logo[取模方式在图片上]和字符串循环显示。

源码，取模软件，st7567.pdf 已打包，keil5测试没问题。

通过网盘分享的文件：st7567-spi 测试.zip
链接: https://pan.baidu.com/s/13ha_AQ0_4wsVe0vSxJJnIQ?pwd=ug9a 提取码: ug9a 复制这段内容后打开百度网盘手机App，操作更方便哦

有一个问题，我怎么感觉硬件spi和软件spi没啥区别啊，能节省多少资源呢？因为我是爱好者不知道实际开发中存在的问题，我想做的是STC8H8K64 + HWL8110（uart通信，电量统计的芯片）+st7567+UART蓝牙无线发送一点数据。这个工程我需要注意什么？欢迎赐教。
最终感谢stc公司送我的开天斧三开发板，好像那个送我id的号被封了。。。

kpj001 · 发表于 18 小时前

硬件SPI往往搭配DMA，刷屏快很多。如不搞视频，仅仅显示些数值的话，软件SPI足够用了。
软件SPI极容易移植，可以说只要在一个MCU上跑通，其他的就没问题了，毕竟只需要会GPIO高高低低就能驱动了。
个人觉得硬件SPI定位有些尴尬，真的需要高速刷新的往往会用到8080及MIPI这些。
如用到外接 SPI 的 DAC做波形发生器，硬件SPI 则是刚需。

szb314 · 发表于 12 小时前

kpj001 发表于 2025-7-26 01:38
硬件SPI往往搭配DMA，刷屏快很多。如不搞视频，仅仅显示些数值的话，软件SPI足够用了。
软件SPI极容易移植 ...

怎么可能尴尬呢，硬件spi ，一句spdat=xx；就丢给spi硬件自己处理了，cpu可以去做别的，而软件模拟的，你还在那 for 半天。。。

ahyu99 · 发表于 12 小时前

那个发送数据的延时可以去掉，应该是没有问题的。

银河小铁骑 · 发表于 11 小时前

STC的新号，来了！微信：19952583740，欢迎咨询

nokia5320 · 发表于 11 小时前

void SPI_SendByte(unsigned char dat) {
SPDAT = dat; // 写入数据
while (!(SPSTAT & 0x80)); // 等待传输完成
SPSTAT = 0xC0; // 清除标志位
}
while不也是空等待处理器哪啊

szb314 · 发表于 11 小时前

nokia5320 发表于 2025-7-26 08:47
void SPI_SendByte(unsigned char dat) {
SPDAT = dat; // 写入数据
while (!(SPST ...

典型的照抄例程不看说明书，spi还有中断呢，不用傻等，，何况硬件spi速度很快，等也不用多久，远比模拟的 for循环快的多啊，，一个程序尽量不要delay，这是最原始的新人标志，正常设计成状态机模式就可以了，无需delay，即使不得不用，也尽可能时间短，反正cpu就像发动机一直运转的，不要它做无用的delay

百里128 · 发表于 11 小时前

家园，没了没了

szb314 · 发表于 11 小时前

你仿真一下自己程序看看时间就知道了。。。换不同的写法，再仿真，如果有示波器，可以实测硬件spi 和模拟的时间差距，通常stc硬件spi 4分频，自己可以算出传输一个字节耗时多久。。

liqh · 发表于 10 小时前

谢谢分享，我看不懂

nokia5320 · 发表于 10 小时前

szb314 发表于 2025-7-26 09:04
典型的照抄例程不看说明书，spi还有中断呢，不用傻等，，何况硬件spi速度很快，等也不用多久，远比模拟 ...

多教教我这等小白

kkdkj · 发表于 9 小时前

不会单片机，看不大懂。

茶壹杯 · 发表于 9 小时前

本帖最后由茶壹杯于 2025-7-26 10:51 编辑

应该还是模拟SPI 吧
标题现在还有时间改

nokia5320 · 发表于 8 小时前

本帖最后由 nokia5320 于 2025-7-26 11:49 编辑

茶壹杯发表于 2025-7-26 10:48
应该还是模拟SPI 吧
标题现在还有时间改

并不是呦，我折腾好几天才搞定。代码里我也没有把发送字节拆开扔引脚上，我只要扔到寄存器 SPDAT = dat就自动发送了。

nokia5320 · 发表于 8 小时前

银河小铁骑发表于 2025-7-26 08:34
STC的新号，来了！微信：19952583740，欢迎咨询

谢谢给的样品哈~

银河小铁骑 · 发表于 8 小时前

【SPI，SPI-DMA，I2C，I2C-DMA】代码
驱动OLED-12864 ，开源：

mmxx2015 · 发表于 8 小时前

如果要实现最终要实现的功能，建议：
（1）这个程序结构不好，要么用系统，要么用简易状态机。
（2）开启通讯相关中断（SPI、UART），减少CPU空转等待。
（3）拆分功能做成模块，不同模块写在不同c、h文件对中，根据描述，大概需要计时、显示、通讯这几个模块。如果想方便以后移植到其它芯片，最好分成硬件层和应用层，以显示这张图为例，硬件层负责通过SPI接口把显示数据发给显示芯片，应用层把待显示数据准备到一个缓冲区中。

ba21 · 发表于 20 分钟前

看不懂，谢谢分享。

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