HT1621B驱动LCD测试过完整.rar

#include "HT1621.h" #include<iocc2530.h> #define HT1621_BASE100MS 100 //由HT1621_Delay实现100mS延时，根据单片机修改此常数 #define HT1621_CLK 10 //WR信号线频率,由 HT1621_Delay_us 实现，建议100K 1/0.1M=10us const unsigned char HT1621_segtab[HT1621_SEGNUM]= { 0,1,2,3,4,5,6,7 }; unsigned char HT1621_maxcom=4; //驱动的com数可以是4com，3com，2com unsigned char HT1621_addrbit=6; //驱动ic的ram地址位数 A5-A0 unsigned char HT1621_dispram[HT1621_SEGNUM]; //显示RAM buffer只使用低4位，bit0->com0,bit1->com1,bit2->com2,bit3->com3 unsigned char HT1621_segi,HT1621_comi; /************************************************************* *函数名称：HT1621_Delay_us *函数功能：Inserts a delay time *输入参数：ucDat-> 延时时间 *输出参数：None *备 注：此程序需要自行校准 实现 10us 延时 **************************************************************/ void HT1621_Delay_us(unsigned int ucDat) { unsigned int b; while(ucDat--) { for(b=1; b>0; b--); } } /************************************************************* *函数名称：HT1621_Delay_ms *函数功能：Inserts a delay time *输入参数：ucDat-> 延时时间 *输出参数：None *备 注：此程序需要自行校准 实现 1ms 延时 **************************************************************/ void HT1621_Delay_ms(unsigned int ucDat) { unsigned int a,b; for(a=ucDat; a>0; a--) { for(b=122; b>0; b--); } } /** * @brief HT1621 clk * @param None * @retval None */ void WriteClockHT1621(void) { HT1621_WR_L(); HT1621_Delay_us(HT1621_CLK); HT1621_WR_H(); HT1621_Delay_us(HT1621_CLK); } /** * @brief Write HT1621 Command * @param FunctonCode->功能/命令码 * @retval None */ void WriteCommandHT1621(unsigned char FunctonCode) { unsigned char Shift = 0x80; unsigned char i; HT1621_CS_L(); //CS 片选开 HT1621_Delay_us(HT1621_CLK); HT1621_DATA_H(); //100 WriteClockHT1621(); HT1621_DATA_L(); WriteClockHT1621(); HT1621_DATA_L(); WriteClockHT1621(); for(i = 0; i < 8; i++) { if(Shift & FunctonCode) HT1621_DATA_H(); else HT1621_DATA_L(); WriteClockHT1621(); Shift = Shift >> 1; } HT1621_DATA_L(); WriteClockHT1621(); //发送一个 0 命令码中最后一位 X HT1621_CS_H(); //CS 片选关 HT1621_Delay_us(HT1621_CLK); HT1621_DATA_H(); } /** * @brief Write 1 data to HT1621 * @param Addr->写入ram的地址 * @param Databuf->写入ram的数据 * @retval None */ void Write1DataHT1621(unsigned char Addr,unsigned char Dat) { unsigned char i; unsigned char Shift; HT1621_CS_L(); //CS 片选开 HT1621_Delay_us(HT1621_CLK); HT1621_DATA_H(); //101 WriteClockHT1621(); HT1621_DATA_L(); WriteClockHT1621(); HT1621_DATA_H(); WriteClockHT1621(); Shift = 0x20; //屏蔽高3位 只用5位 for( i = 0; i < HT1621_addrbit; i++) { if(Addr & Shift) HT1621_DATA_H(); else HT1621_DATA_L(); WriteClockHT1621(); Shift = Shift >> 1; } Shift = 0x01; for (i = 0; i < 4; i++) { if( Dat & Shift) HT1621_DATA_H(); else HT1621_DATA_L(); WriteClockHT1621(); Shift = Shift << 1; } HT1621_CS_H(); //CS 片选关 HT1621_Delay_us(HT1621_CLK); HT1621_DATA_H(); } /** * @brief Write n data to HT1621 * @param Addr->写入ram的起始地址 * @param Databuf->写入ram的数据buffer * @param Cnt->写入ram的数据个数 * @retval None */ void WritenDataHT1621(unsigned char Addr,unsigned char *Databuf,unsigned char Cnt) { unsigned char i,j; unsigned char Shift; unsigned char dataval; HT1621_CS_L(); //CS 片选开 HT1621_Delay_us(HT1621_CLK); HT1621_DATA_H(); //101 WriteClockHT1621(); HT1621_DATA_L(); WriteClockHT1621(); HT1621_DATA_H(); WriteClockHT1621(); Shift = 0x20; //屏蔽高3位 只用5位 for( i = 0; i < HT1621_addrbit; i++) { if (Addr & Shift) HT1621_DATA_H(); else HT1621_DATA_L(); WriteClockHT1621(); Shift = Shift >> 1; } for (j = 0; j < Cnt; j++) { Shift = 0x01; dataval=*Databuf++; for (i = 0; i < 4; i++) { if( dataval & Shift) HT1621_DATA_H(); else HT1621_DATA_L(); WriteClockHT1621(); Shift = Shift << 1; } } HT1621_CS_H(); //CS 片选关 HT1621_Delay_us(HT1621_CLK); HT1621_DATA_H(); } /** * @brief lcd全显或全灭 * @param state=1->lcd全亮 * @param state=0->lcd全灭 * @retval None */ void HT1621_DisAll(unsigned char state) { unsigned char segi; unsigned char dispram[32]; for(segi=0;segi<32;segi++) { dispram[segi]=0; } for(segi=0;segi<HT1621_SEGNUM;segi++) { if(state==1) { if(HT1621_maxcom==2) HT1621_dispram[segi]=0x03; else if(HT1621_maxcom==3) HT1621_dispram[segi]=0x07; else if(HT1621_maxcom==4) HT1621_dispram[segi]=0x0f; } else { HT1621_dispram[segi]=0x00; } dispram[HT1621_segtab[segi]] = HT1621_dispram[segi]; } WritenDataHT1621(0,dispram,32); } /** * @brief lcd显示单个点（1comx1seg） * @param Seg->点对应的seg * @param Com->点对应的com * @retval None */ void HT1621_DisSegOn(unsigned char Seg,unsigned char Com) { HT1621_dispram[Seg-HT1621_segtab[0]] |= (1<<Com); Write1DataHT1621(Seg,HT1621_dispram[Seg-HT1621_segtab[0]]); } /** * @brief lcd关闭单个点（1comx1seg） * @param None * @retval None */ void HT1621_DisSegOff(unsigned char Seg,unsigned char Com) { HT1621_dispram[Seg-HT1621_segtab[0]] &= ~(1<<Com); Write1DataHT1621(Seg,HT1621_dispram[Seg-HT1621_segtab[0]]); } /** * @brief HT1621进入掉电低功耗模式 * @param None * @retval None */ void HT1621_Halt(void) { //连续使用命令LCDOFF和SYSDIS,系统将处于掉电低功耗状态。 //只有使用片内RC时钟源时,才能使系统进入掉电低功耗状态。 WriteCommandHT1621(OSC_OFF); WriteCommandHT1621(DISP_OFF); } /** * @brief HT1621 Init * @param None * @retval None */ void HT1621_Init(void) //退出掉电低功耗状态重新初始化HT1621 { HT1621_CS_H(); HT1621_WR_H(); HT1621_DATA_H(); WriteCommandHT1621(OSC_ON); WriteCommandHT1621(DISP_ON); #if COM_4_BIAS_1_3 WriteCommandHT1621(COM_1_3__4);HT1621_maxcom=4; //1/3bias 4com #endif #if COM_3_BIAS_1_3 WriteCommandHT1621(COM_1_3__3);HT1621_maxcom=3; //1/3bias 3com #endif #if COM_2_BIAS_1_3 WriteCommandHT1621(COM_1_3__2);HT1621_maxcom=2; //1/3bias 2com #endif #if COM_4_BIAS_1_2 WriteCommandHT1621(COM_1_2__4);HT1621_maxcom=4; //1/2bias 4com #endif #if COM_3_BIAS_1_2 WriteCommandHT1621(COM_1_2__3);HT1621_maxcom=3; //1/2bias 3com #endif #if COM_2_BIAS_1_2 WriteCommandHT1621(COM_1_2__2);HT1621_maxcom=2; //1/2bias 2com #endif //上电默认配置(以下未用功能关闭降低功耗) WriteCommandHT1621(TIMER_DIS); WriteCommandHT1621(WDT_DIS); WriteCommandHT1621(BUZZ_OFF); WriteCommandHT1621(IRQ_DIS); HT1621_num_init(); //自动生成液晶屏需要的数组 } /** * @brief 数据交换，自动生成液晶需要的数组，此程序，需要根据液晶图纸修改，此数组为正常数码管的次序； * @param None * @retval None */ const unsigned char LED_Tab[]= { 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71, //0-15 = 0--f 0x58, //16=c 0x37, //17=N 0x40, //18=- 0x0E, //19=J 0x3E, //20=U 0x76, //21=H 0x30, //22=I }; unsigned char LCD_RAM_Tab[sizeof(LED_Tab)]; //通过SIZEOF来确定数组的大小； #define LCD_A 0x01 #define LCD_B 0x02 #define LCD_C 0x04 #define LCD_D 0x08 #define LCD_E 0x10 #define LCD_F 0x20 #define LCD_G 0x40 #define LCD_P 0x80 void HT1621_num_init(void)//是把正常的数码管的段的次序转换成LCD的段码次序，需要根据液晶图纸顺序做修改； { unsigned char num,LCD_data; for(num=0; num<sizeof(LED_Tab); num++) { LCD_data = 0; LCD_data = LCD_data | ((unsigned char)((LED_Tab[num] & LCD_P)>>7) << 7); LCD_data = LCD_data | ((unsigned char)((LED_Tab[num] & LCD_E)>>4) << 6); LCD_data = L