Chen Huan
74HC595 Nixie Driver
Revision 0:b5bd2bc3c14d, committed 2017-06-16
- Comitter:
- heroistired
- Date:
- Fri Jun 16 07:07:15 2017 +0000
- Commit message:
- Chen Huan; EEA of THU
Changed in this revision
diff -r 000000000000 -r b5bd2bc3c14d Nixie/Nixie.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Nixie/Nixie.cpp Fri Jun 16 07:07:15 2017 +0000
@@ -0,0 +1,58 @@
+/***************************************************************
+功能 : mbed的串联74HC595数码管驱动
+作者 : 陈欢 清华大学电机工程与应用电子技术系
+邮箱 : h-che14@mails.tsinghua.edu.cn OR heroistired@gmail.com
+声明 :
+本程序仅供学习与交流使用,如需他用,须联系作者
+本程序可以随意更改,但须保留本信息页
+All rights reserved
+2017.6.16
+***************************************************************/
+
+#include "Nixie.h"
+
+Nixie::Nixie(PinName _DIO, PinName _SCK, PinName _RCK): DIO(_DIO), SCK(_SCK), RCK(_RCK)
+{
+ DIO = 0;
+ SCK = 0;
+ RCK = 0;
+}
+
+void Nixie::NixieShow(int Num, int Pos, bool WithDot)
+{
+ char c, num;
+
+ if(WithDot)
+ {
+ num=NumCode[Num]-0x80;
+ for(c=0;c<8;c++)
+ {
+ SCK=0;
+ DIO=num&0x80;
+ num<<=1;
+ SCK=1;
+ }
+ }
+ else
+ {
+ num=NumCode[Num];
+ for(c=0;c<8;c++)
+ {
+ SCK=0;
+ DIO=num&0x80;
+ num<<=1;
+ SCK=1;
+ }
+ }
+
+ num=SegBit[Pos];
+ for(c=0;c<8;c++)
+ {
+ SCK=0;
+ DIO=num&0x80;
+ num<<=1;
+ SCK=1;
+ }
+ RCK=0;
+ RCK=1;
+}
\ No newline at end of file
diff -r 000000000000 -r b5bd2bc3c14d Nixie/Nixie.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Nixie/Nixie.h Fri Jun 16 07:07:15 2017 +0000
@@ -0,0 +1,32 @@
+#ifndef __NIXIE_H
+#define __NIXIE_H
+
+/***************************************************************
+功能 : mbed的串联74HC595数码管驱动
+作者 : 陈欢 清华大学电机工程与应用电子技术系
+邮箱 : h-che14@mails.tsinghua.edu.cn OR heroistired@gmail.com
+声明 :
+本程序仅供学习与交流使用,如需他用,须联系作者
+本程序可以随意更改,但须保留本信息页
+All rights reserved
+2017.6.16
+***************************************************************/
+
+#include "mbed.h"
+
+const char NumCode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
+const char SegBit[]={0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01};
+
+//数码管类
+class Nixie
+{
+ public:
+ Nixie(PinName _DIO, PinName _SCK, PinName _RCK);
+ void NixieShow(int Num, int Pos, bool WithDot);
+
+ protected:
+ DigitalOut DIO;
+ DigitalOut SCK;
+ DigitalOut RCK;
+};
+#endif
\ No newline at end of file
diff -r 000000000000 -r b5bd2bc3c14d main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Jun 16 07:07:15 2017 +0000
@@ -0,0 +1,29 @@
+#include "mbed.h"
+#include "Nixie.h"
+
+//数码管驱动示例
+
+Nixie myNixie(PA_0,PA_1,PA_4); //声明数码管类 依次是 DIO SCK RCK 任意GPIO脚都可以
+
+int pos = 0, num = 0;
+bool WithDot = false;
+int main()
+{
+ while(1)
+ {
+ wait(0.15);
+ myNixie.NixieShow(num,pos,WithDot);//在数码管上显示数字 num 要显示的数字 pos 数字显示的位置 从左到右 0-7 WithDot 是否显示小数点
+ num++;
+ pos++;
+ if(num == 10)
+ {
+ num = 0;
+ if(WithDot)
+ WithDot = false;
+ else
+ WithDot = true;
+ }
+ if(pos == 8)
+ pos = 0;
+ }
+}
diff -r 000000000000 -r b5bd2bc3c14d mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Jun 16 07:07:15 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/mbed_official/code/mbed/builds/0f02307a0877 \ No newline at end of file