本帖最后由 TLLED 于 2018-10-27 18:33 编辑
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折腾一下午,把LCD 12864驱动成, LCD模块没有资料,程序分享个大家。
, [! e6 v% }( G: h' E& p 一、硬件部分:3 q# k* g5 s' A/ _* v, R8 W
手工搭建硬件电路# c( D) [) c9 C0 y5 K% j8 \# Q5 w+ R1 N
1、显示模块焊接: o! i+ E. D& x4 N
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2、 焊接完成* S6 d3 @( k& E
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3、显示效果:+ U' H! [. z. G9 D
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4、整体连接图7 C" q0 q2 h& W+ w! W
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二、软件部分:
z# ~* L' W, L* ~7 w; D 1、ST7565驱动部分程序代码:3 x6 H( T1 U/ {5 `, [0 U
- void St7565_Port(void)
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7 H3 P8 T8 F3 f5 ^* ?0 f - GPIO_InitTypeDef GPIO_InitStructure;! D7 j' N+ b* \; x" U: x
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB , ENABLE);
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) I" F6 o7 \- J. \0 h - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14; / e7 r {3 w7 V4 j; q" l, H
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
+ ^1 O. z, A) x3 F4 U; C - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
% R/ @" O' [. D2 ?& o4 Q - GPIO_Init(GPIOB, &GPIO_InitStructure); " a' x2 s+ K/ n# z
- }
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- void delay(uint16_t ms)
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- uint8_t j;
K, I( @& F9 ^& ?: N9 x - while(ms--) + I9 Q/ Y$ h4 X0 o
- for(j=0;j<=20;j++);
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3 c$ b' I: k8 u7 q- }+ H p - /************Serial*************/
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- void St7565_WriteCmd(uint8_t com)
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- uint8_t i,j;
) \! F! f) o; `. D - lcd_cs_low();2 a" I3 i( W7 O5 o# z
- lcd_a0_low();
0 v- T3 c B2 t9 w) h - lcd_sck_low();
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. T1 d( t# l9 h2 P/ n - for(i=0;i<8;i++)
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" c2 s" u, Q& j - j=com;
9 j5 L3 y, H( x/ ^( x+ @ - lcd_sck_low();
! n4 M: y3 l2 @' u6 c _9 |: \8 f - if( (com&0x80)==0x80)
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+ R. r3 d+ i( V) t3 b1 K - lcd_sda_high();
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- else
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- lcd_sda_low();
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# _% W( V8 I+ E( x8 J C - lcd_sck_high();
- y+ {) @( g$ v* \- ~ - com=j<<1;
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( q5 d! z, _3 w# Z3 z3 e - lcd_cs_high();9 M' f( M5 `( O- }7 p7 r# j. A
- lcd_a0_high(); 7 \& @$ k! [. p0 B" z
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- void St7565_WriteDat(uint8_t dat) % @, Q# v3 G% ]7 J
- {
, ]! j6 P# \* S( z9 \' x6 v - uint8_t i,j;
3 Q4 N+ c m! _7 i: b0 F6 H - lcd_cs_low(); //CS=0
! V6 b2 l0 Y/ ?5 `# j - lcd_a0_high(); //A0=1
* Q9 d# v8 P+ R/ w- w4 u. B1 K - lcd_sck_low(); ' t) a0 V) O7 x6 [( `6 I
- for(i=0;i<8;i++) * m: S* |( B0 o4 e
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- j=dat;
3 A! e) j2 W' l6 c3 i - lcd_sck_low();' \: ?+ Z% R% X" n8 i% D
- if( (dat&0x80)==0x80 )5 Z( X+ T% H0 h
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- lcd_sda_high();6 O- s! Q1 o+ w# G7 u+ K
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- else: o5 A2 o. H# B# ] E& @
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- lcd_sda_low();. Q; m8 U2 Y8 ~; q" F/ p
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8 R4 S) i8 g' H' g0 ~ - lcd_sck_high(); : X8 _* [+ h( k
- dat=j<<1;
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- lcd_cs_high();
! o, j" H) [" z - lcd_a0_low(); , g( R4 \4 U/ O. ^8 c- S
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: I& n4 I) p+ }3 a* w4 G- void ClearDisplay() 1 N% g# |9 [) a3 d
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- uint8_t i,j;
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& V8 T5 [# F5 I6 j - St7565_WriteCmd(0xB0+i); // (Page = 0xB0)//??????? H4 B1 Z0 x- J, b* r# I7 z
- St7565_WriteCmd(0x10); 7 y& K9 Z6 L5 I) D
- St7565_WriteCmd(0x00);
; w$ c6 P, Z& {+ G8 h6 k. a5 i - for(j=0;j<132;j++) //???????? / C& l( k# e: p
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" R1 c F* t# C; L9 r - St7565_WriteDat(0x00); 5 H$ u5 I# @1 o8 |, y7 g7 L
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4 ]/ R2 B# w% F9 v5 a" U- void Setadd(uint8_t xl,uint8_t yl)
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- i=xl&0x0f; . J& a6 h) l7 N7 [7 a
- xl=(xl>>4)+0x10;
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- St7565_WriteCmd(0xb0+yl);
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9 P6 |4 [- }0 e" h# K- /*******************ÏÔʾ8*16 ASCIIÂë****************/% f) l! d% w# }4 Y5 `# a
- void LCD_P8x16Str(unsigned char x,unsigned char y,unsigned char ch[])
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- unsigned char c=0,i=0,j=0;5 m' G6 L9 s% I9 P, g
- while (ch[j]!='\0')
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/ \1 `8 l/ D- r6 V# P - c =ch[j]-32;
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- x=0; & x3 e, q/ q! b9 \! E; W5 X/ [; z3 i' Q
- y++;
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4 M* k+ w2 h& ^- g e - Setadd(x,y*2);( R! ~% k1 ]0 O- {" o' j
- for(i=0;i<8;i++)
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- Z9 Y2 P7 G: |1 A7 I - St7565_WriteDat(F8X16[c*16+i]);//Delay(10);; R2 _( P; y+ C' s
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- Setadd(x,y*2+1);
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# P5 v$ N% C U5 I; }5 A; ] - St7565_WriteDat(F8X16[c*16+i+8]); //Delay(10);
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- x+=8;
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- void Init_St7565(void). k% V$ A4 C: p1 v
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- St7565_Port();
2 W! v2 M6 i0 F - lcd_rst_low();+ I! d) C# j; y a/ s# A8 g) \5 h
- delay(200); ; w# t4 Y, z6 h3 U# q5 l1 \" W
- lcd_rst_high(); ' d" p+ D) d% I2 o3 d. T
- delay(200);
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- St7565_WriteCmd(0xe2);//internal reset
+ g' r& X" O& }# i: g" V5 p" q1 U - St7565_WriteCmd(0xA3);//Bais set 1/9 bais
" g' o: w; c. B3 |$ W: `) d+ J - St7565_WriteCmd(0xA0);//ADC select 0xa0 normal 0xA1 reverse
5 E6 `5 k; M$ T, u: U - St7565_WriteCmd(0xc8);//com output scan direction??com??????? 0xc0??????0xC8???¾??? 0 [, c* Y9 r4 }( [7 h
- /****Select internal resistor ratio****/
: X) B) K1 j/ `# V; t0 g; S6 g0 Y - St7565_WriteCmd(0x2c);//????????????
$ K8 X. d! Q) I% }8 S - St7565_WriteCmd(0x2e);//????????????2um
, q8 [( I8 G! H, t - St7565_WriteCmd(0x2F);// # v4 N# w: ?& M8 ^) V
- /**************************************/ ; ]- n' Y: l7 Z( a, `& K B( X& R
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. a3 J. `4 K7 w7 B* K5 H - St7565_WriteCmd(0x81);//???g???? 3 [7 u, o5 D, Q/ z8 C
- St7565_WriteCmd(0x19);//????????J?????? ?????0x00-0x3f
7 T3 A# z8 y3 [- f( W+ M7 _% D - St7565_WriteCmd(0x24);//????????J?????? ?????0x21-0x27 ?????????????U??????U??
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- St7565_WriteCmd(0xAF);//display lcd on
) c6 S! R! G3 E4 c, T - St7565_WriteCmd(0x40);//display start addr, @) P2 n. g% i1 }
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) t9 `& I) x( a7 B( Y - ClearDisplay();
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# \0 I& K2 I7 ~& c3 M - LCD_P8x16Str(0,0,"www.stmcu.org.cn");
. E+ ~& u" _) T3 p* q: C* G - LCD_P8x16Str(0,1,"LCD ID:ST7565");
5 C4 G4 S8 X. j% a7 [8 |: ?- |8 i8 k( d1 c - LCD_P8x16Str(0,2,"MCU:STM32F103RC");
+ }5 r5 j2 E8 o; {2 C - LCD_P8x16Str(0,3,"STMCU ID:TLLED");# k% P' m; S, `3 K$ Z
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复制代码 2、软件包: . k, K& O' q6 o7 O5 E8 ^
ST7565 STM32.rar
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这个屏的手册我没有找到,找到的管脚的定义,和ST7565芯片的资料,通过查阅芯片的资料来控制这个显示屏
SPI驱动方式试过,并口方式还未试过。' ~+ D0 h+ w( D( j/ o" h& w+ {. F
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ST7565.pdf
2018-10-30 14:15 上传
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ST7567.pdf
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点评
在网上买到这个模块了吗
买了30块
买的多,可以做个板子,当模块使用