STM8L152K4驱动LCD.rar

/* 添加包含芯片的头文件 */ #include<iostm8l152k4.h> unsigned char LCD_DisBuffer[4];//显示缓冲区 //码值表 /* 0 1 2 3 4 */ const unsigned short Data[16] = {0x3132, 0x2020, 0x3212, 0x3222, 0x2320, /* 5 6 7 8 9 */ 0x1322, 0x1332, 0x3020, 0x3332, 0x3322, /* A b c d e f*/ 0x3330, 0x0332, 0x1112, 0x2232, 0x1312, 0x1310}; //数值 BAGFCEDP 码值 //0 11011110 3132 //1 10001000 2020 //2 11100110 3212 //3 11101010 3222 //4 10111000 2320 //5 01111010 1322 //6 01111110 1332 //7 11001000 3020 //8 11111110 3332 //9 11111010 3322 //A 11111100 3330 //b 00111110 0332 //C 01010110 1112 //d 10101110 2232 //E 01110110 1312 //F 01110100 1310 unsigned char number1 , number2 , number3 , number4; /******************************************************************************* **函数名称：void InitLCD(void) **功能描述：初始化LCD模块参数 **入口参数：无 **输出：无 *******************************************************************************/ void InitLCD(void) { CLK_PCKENR2_PCKEN22=1; CLK_PCKENR2_bit.PCKEN23 = 1; //使能LCD时钟 //CLK_ECKR_bit.LSEON = 1; //开启LSE //while(CLK_ECKR_bit.LSERDY == 0); //等待LSE准备就绪 CLK_CRTCR_bit.RTCSEL0 = 0; //选择内部低速时钟为RTC时钟源 CLK_CRTCR_bit.RTCSEL1 = 1; CLK_CRTCR_bit.RTCSEL2 = 0; CLK_CRTCR_bit.RTCSEL3 = 0; CLK_CRTCR_bit.RTCDIV0 = 0; //RTC时钟源进行1分频 CLK_CRTCR_bit.RTCDIV1 = 0; CLK_CRTCR_bit.RTCDIV2 = 0; LCD_FRQ_bit.PS0 = 0; //设置LCD的时钟进行2的4次方分频 = 16分频 LCD_FRQ_bit.PS1 = 1; LCD_FRQ_bit.PS2 = 0; LCD_FRQ_bit.PS3 = 0; LCD_FRQ_bit.DIV0 = 0; //设置LCD的刷屏频率为DIV + 16 = 0 +16 = 16分频的LCD时钟 LCD_FRQ_bit.DIV1 = 0; LCD_FRQ_bit.DIV2 = 0; LCD_FRQ_bit.DIV3 = 0; LCD_CR1_bit.DUTY0 = 1; //设置DYTY = 3 LCD的输出占空比选择为1/4 LCD_CR1_bit.DUTY1 = 1; LCD_CR1_bit.B2 = 0; //设置LCD的输出为1/3偏置选择 LCD_CR2_bit.VSEL = 0; //选择LCD的电源为内部集成电源 LCD_PM0 = 0x00; //设置LCD的SEG0 -SEG7禁止输出 STM8L152K4T6没有SEG0-SEG7的段控制 LCD_PM1 = 0xff; //设置LCD的SEG8-SEG15全球通输出 LCD_PM2 = 0x00; //以下SEG全禁止 LCD_PM3 = 0x00; LCD_CR3_bit.DEAD0 = 0; //设置死区时间 : 设置LCD没有死区电压 LCD_CR3_bit.DEAD1 = 0; LCD_CR3_bit.DEAD2 = 0; LCD_CR2_bit.PON0 = 1; //PON = 1 设置液晶的脉冲持续时间为1个时钟周期 LCD_CR2_bit.PON1 = 0; LCD_CR2_bit.PON2 = 0; LCD_CR2_bit.HD = 1; //使能LCD高速控制 LCD_CR3_bit.LCDEN = 1; //使能LCD模块 } /******************************************************************************* **函数名称：void Display() **功能描述：向LCD显示缓存输入要显示的数据 **入口参数：无 **输出：无 *******************************************************************************/ void Display() { //对显示缓冲区操作，要结合液晶数据手册进行数据调整给LCD缓存显示 LCD_DisBuffer[0]=(((Data[ number4] &0xf000)>>12)<<0)|(((Data[number3] &0xf000)>>12)<<2)|(((Data[number2] &0xf000)>>12)<<4)|(((Data[number1] &0xf000)>>12)<<6); //COM0,SEG15-SEG8 LCD_DisBuffer[1]=(((Data[ number4] &0x0f00)>>8)<<0)|(((Data[ number3] &0x0f00)>>8)<<2)|(((Data[ number2] &0x0f00)>>8)<<4)|(((Data[ number1] &0x0f00)>>8)<<6); //COM1 LCD_DisBuffer[2]=(((Data[ number4] &0x00f0)>>4)<<0)|(((Data[ number3] &0x00f0)>>4)<<2)|(((Data[ number2] &0x00f0)>>4)<<4)|(((Data[ number1] &0x00f0)>>4)<<6); //COM2 LCD_DisBuffer[3]=(((Data[ number4] &0x000f)>>0)<<0)|(((Data[ number3] &0x000f)>>0)<<2)|(((Data[ number2] &0x000f)>>0)<<4)|(((Data[ number1] &0x000f)>>0)<<6); //COM3 LCD_RAM1 = LCD_DisBuffer[0]; //SEG8-SEG15对应寄存器RAM1，COM0 LCD_RAM4 = LCD_DisBuffer[1]<<4; //COM1，SEG8-SEG11对应RAM4高四位 LCD_RAM5 = LCD_DisBuffer[1]>>4; //COM1，SEG12-SEG15对应RAM5低四位 LCD_RAM8 = LCD_DisBuffer[2]; //COM2，SEG8-SEG15对应RAM8 LCD_RAM11 = LCD_DisBuffer[3]<<4; //COM3，SEG8-SEG11对应RAM11高四位 LCD_RAM12 = LCD_DisBuffer[3]>>4; //COM3，SEG12-SEG15对应RAM12低四位 } /******************************************************************************* **函数名称：void Display_lcd_dot(unsigned char p) **功能描述：在LCD里的4个小数点任意筢显示 **入口参数：P ；1代表双点显示，2代表2P显示，3代表3P显示，4代表4显示 **输出：无 *******************************************************************************/ void Display_lcd_dot(unsigned char p) { switch(p) { case 1: LCD_RAM11 = (LCD_DisBuffer[3]<<4)|0x10; //1P,COM3，SEG8对应RAM的第5位，所以要与0X10相或 break; case 2: LCD_RAM11 = (LCD_DisBuffer[3]<<4)|0x40; //2P,COM3，SEG10对应RAM的第7位，所以要与0X40相或 break; case 3: LCD_RAM12 = LCD_DisBuffer[3]>>4|0x01; //3P break; case 4: LCD_RAM12 = LCD_DisBuffer[3]>>4|0x04; //4P break; default: break; } } /******************************************************************************* **函数名称：void delay(unsigned int ms) Name: void delay(unsigned int ms) **功能描述：大概延时 **入口参数：unsigned int ms 输入大概延时数值 **输出：无 *******************************************************************************/ void delay(unsigned int ms) { unsigned int x , y; for(x = ms; x > 0; x--) /* 通过一定周期循环进行延时*/ for(y = 1000 ; y > 0 ; y--); } /******************************************************************************* **函数名称：void ClockSwitch_HSE() **功能描述：将系统时钟切换到外部高速晶振时钟 **入口参数：无 **输出：无 *******************************************************************************/ void ClockSwitch_HSE() { //启用外部高速晶振且16分频，外部晶振1-16MHz CLK_SWCR_bit.SWEN = 1; //使能开启切换 CLK_ECKR_bit.HSEON = 1; //开启HSE while(CLK_ECKR_bit.HSERDY == 0); //等待HSE准备就绪 CLK_SWR = 0x04; //选择HSE为主时钟源 while(CLK_SWCR_bit.SWBSY == 1); //等待切换完成 CLK_CKDIVR_bit.CKM = 0; //1分频直接用外部16M晶振 //CKM = 0 系统1分频 //CKM = 1 系统2分频 //CKM = 2 系统4分频 //CKM = 3 系统8分频 //CKM = 4 系统16分频 //CKM = 5 系统32分频 //CKM = 6 系统64分频 //CKM = 7 系统128分频 CLK_SWCR_bit.SWEN = 0; //关闭切换 } /* 主函数 */ void main() { char i , j; //CLK_CKDIVR_bit.CKM = 0; //1分频直接用外部16M晶振 ClockSwitch_HSE(); //内部时钟为1分频 = 16Mhz InitLCD(); //调用LCD初始化函数 while(1) //循环在LCD里显示0_F数字 { for(i = 0; i< 16; i++) { number4= i; //加载要显示的数值 number3 = i; number2 = i; number1 = i; Display(); j++; //循环显示4个点 if(j >= 5) { j = 1; } Display_lcd_dot(j); //小数点显示 delay(5000); } } }