|
拆了一个雷达小显示盒，里面使用的TM1723芯片驱动段码屏，拿来练练手，使用STM32F103RTB6驱动。 0 J8 N' k( S# y //TM1723.C3 M& {5 J- `4 w$ N7 g9 @ #include "config.h": W W( A8 v" v7 H: x8 _1 [ + }5 Z% V) M: p const u8 dispdat[]={0xd7,0x06,0xe3,0xa7,0x36,0xb5,0xf5,0x07,0xf7,0xb7}; //TM1723初始化 void Init_TM1723(void)& u5 a, ]9 \$ P8 I/ X, G5 a2 ` {3 N& B( [5 @7 N2 k GPIO_InitTypeDef GPIO_InitStructure; . B6 C7 ]0 w# L1 _6 S RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; $ Z8 w3 F: Z2 U0 e$ M GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_SetBits(GPIOA,GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3); ( g+ j' H! Q4 H) \, J1 C } 3 w; ~$ x6 q6 H+ s) \* D# t% G7 d # t+ I7 h3 ^% G" R8 u) J //延时+ Z5 D$ d5 m! |. ~/ e void TM1723_Delayus(u32 ys) {1 n D# [: I$ q/ a$ } u8 i; u32 j; for(j=0;j<ys;j++)% ~7 g$ x S( y5 v { for(i=0;i<5;i++); //´óÔ¼1us" H9 p1 g$ P0 w3 l } }$ {& m0 E. [# ] 3 m; a/ F- _/ C! n //TM1723写字节( T d1 f" D6 \* L# N6 L7 O- ]8 M3 ^ void TM1723_WriteByte(u8 dat)- \; y) l B+ [+ I f {+ |' Q6 {3 u/ n) h# e$ R u8 i; & D, Y; x/ ^7 J: T6 S( g7 Q' ? E8 a for(i=0;i<8;i++) { TM1723_CLK=0;$ ?4 D4 M1 i2 S+ {! @" \0 p! I0 R2 l- { if( (dat&0x01)==0x01 ) { TM1723_DIO=1; }1 m$ k6 l8 K$ e) a8 ~ else {# e8 \' w% h! I% D TM1723_DIO=0;3 s# w( P/ }$ W+ ?3 J& M. Q' Q9 o) z }, R1 ^. R3 G" S% q0 w: X9 N dat=dat>>1; TM1723_CLK=1; ! q c4 {# B* Q9 M) H& r1 ^ TM1723_Delayus(2); //2us; {4 G9 {! f K2 p8 n+ e }2 c2 D$ h. G; F }, I7 `) ^1 w1 }& q* z8 q % T* p, m1 O( [3 s4 [- @ //tm1723写命令 void TM1723_WriteCmd(u8 cmd) { TM1723_CLK=1; TM1723_STB=0; ' K. f0 j0 l2 T0 k. c9 i TM1723_WriteByte(cmd);3 U6 [; K% }' r, z+ d+ B% M. \. v TM1723_STB=1;( [! o/ p# r7 @) b, F ! K9 Y7 w% e, @! ` TM1723_Delayus(100); //100us }+ \( V8 B7 R$ ^- p5 T * S# Y2 M) {$ [8 M4 z! y) S$ R //tm1723写数据 void TM1723_WriteDat(u8 addr, u8 dat) { TM1723_CLK=1;' J( t7 Z$ g4 z' Y2 d# @& d* Z. |7 r TM1723_STB=0;, n j4 z! t$ l! {& D! x- o TM1723_WriteByte(addr); TM1723_Delayus(50); TM1723_WriteByte(dat); TM1723_STB=1;, G, \) d) M/ G TM1723_Delayus(100); //100us }+ N' }, o3 Z0 |% P) `3 o 9 i4 s# Z0 a* J' W) L+ k8 x, L2 v //测试 void tt(u8 i)! ^, Y \3 w2 q9 f h) Y { TM1723_WriteCmd(0x00);7 S0 U2 J' b$ a1 s TM1723_WriteCmd(0x44);/ M4 |" t+ H$ f: `2 b TM1723_WriteDat(0xc0, 0x00); TM1723_WriteDat(0xc1, 0x00); 8 R) U& f5 x9 B3 O TM1723_WriteDat(0xc2, dispdat[(i%100)%10]); 0 }* `9 U' O( e h. y* x TM1723_WriteDat(0xc3, dispdat[(i%100)/10]); 9 |8 q1 `& r; a7 Y TM1723_WriteDat(0xc4, dispdat[i/100]); / W: L) B, N, J6 {; G TM1723_WriteDat(0xc5, 0xff);. i* d q R2 t3 m$ Z0 D TM1723_WriteDat(0xc6, 0x00); TM1723_WriteDat(0xc7, 0x00); TM1723_WriteDat(0xc8, 0x00); 8 m" i( L& H8 _+ k/ w TM1723_WriteDat(0xc9, 0xff); , n7 f' X- J v5 c TM1723_WriteDat(0xca, 0xff); ' |! _3 l! [* Z7 U0 a' t6 c0 d" M TM1723_WriteDat(0xcb, 0xff); TM1723_WriteDat(0xcc, 0xff); TM1723_WriteDat(0xcd, 0x00); # i1 I+ l) c2 z/ ]; f3 A* T( R1 J7 l TM1723_WriteDat(0xce, 0xff); TM1723_WriteDat(0xcf, 0xff); " q# w" w, z' D! {" u TM1723_WriteCmd(0x97);6 `! R' i0 V: x6 n7 y9 B- w' Y# A }& ~; {2 l/ \3 |) b5 d& z. S //TM1723.H2 @( P5 |6 `2 K3 c3 ?7 M# a5 }: V #ifndef __TM1723_H_ #define __TM1723_H_, X5 {1 u( b) y* O 9 X3 X5 l9 Q0 s& Y+ l' | #define TM1723_DIO PAout(1) // PA1 #define TM1723_CLK PAout(2) // PA2 #define TM1723_STB PAout(3) // PA3 extern void Init_TM1723(void); ; ~" a/ S, o5 ?+ O9 }% ~" Z extern void tt(u8 i);% X- l- K' I) U( y, v7 g9 G* ?. B 3 i, c- D4 Y5 }3 |9 _' v; s #endif% F4 j* m' y ~ 最后显示的图片 
$ ?$ a& `% H+ }6 p- w* |5 B |
测试的时候，最后一位间隔时间有点短
感谢大佬分享