83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
#include "main.h"
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#include "Hanzi.h"
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#define HC595_PORT GPIOC
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//GPIO置位（拉高）
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#define OE_SET HC595_PORT->BSRR=HC595_OE_Pin
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#define RCLK_SET HC595_PORT->BSRR=HC595_RCLK_Pin
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#define SRCLK_SET HC595_PORT->BSRR=HC595_SRCLK_Pin
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#define SER_SET HC595_PORT->BSRR=HC595_SER_Pin
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//GPIO复位（拉低）
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#define OE_CLR HC595_PORT->BRR=HC595_OE_Pin
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#define RCLK_CLR HC595_PORT->BRR=HC595_RCLK_Pin
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#define SRCLK_CLR HC595_PORT->BRR=HC595_SRCLK_Pin
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#define SER_CLR HC595_PORT->BRR=HC595_SER_Pin
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#define LATCH595 {RCLK_CLR;RCLK_SET;RCLK_CLR;}
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extern uint8_t mPos;
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extern uint8_t mNum;
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void SendOneByte(uint8_t dat)
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{
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uint8_t i;
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OE_CLR;
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for(i=0;i<8;i++)
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{
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if((dat&0x80))
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SER_SET;
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else
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SER_CLR;
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dat <<= 1;
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SRCLK_CLR;//SRCLK=0;
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SRCLK_SET;// SRCLK=1;
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}
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}
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/*******************************************************
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SendTwoBytes(uint16_t dat,bit dir)
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函数功能：向HC595芯片发送两个字节
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入口参数：dat：发送数据，dir：1:先发高位;0:先发低位
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返回参数：无
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********************************************************/
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void SendTwoBytes(uint16_t dat)
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{
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uint8_t i;
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OE_CLR;
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for(i=0;i<16;i++)
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{
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if((dat &0x8000))
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SER_SET;
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else
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SER_CLR;
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dat <<= 1;
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SRCLK_CLR;//SRCLK=0;
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SRCLK_SET;// SRCLK=1;
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}
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}
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/*******************************************************
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//函数名称：HanziDiplay()
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//函数功能：静态显示一个汉字
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//入口参数：无
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//返回参数：无
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********************************************************/
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void HanziDiplay(void)
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{
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uint16_t temp;
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SendTwoBytes(ScanTab[mPos]);
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temp=HanziTab[2*mPos+1+32*mNum];
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temp=(temp<<8)|HanziTab[2*mPos+32*mNum];
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SendTwoBytes(temp);
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LATCH595;
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if(++mPos>=16)
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{
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mPos=0;
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}
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}
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