本帖最后由 adersonl 于 2017-5-20 15:27 编辑
/ b9 D0 P: V2 X
: S- U F. Z, j4 w3 ^6 W# C2 G工作中经常要用到大量的数码管,点阵,LED - l S2 Q8 Z, r4 r
一般都是用74系列的芯片去驱动,因为公司的项目需求找了这颗芯片现在分享驱动和原理图过
; g5 x9 L- k) i# Q, F
- enum Brightness: e# k, K8 E0 ?3 z4 P
- {! T. h+ v) J y ~: X
- Level1 = 0x88,0 e% ]. J+ M, b3 [0 U
- Level2," A+ g' b, v) y }4 C7 B
- Level3,& _# W5 s) e& X8 Z; T/ }# m
- Level4,+ M$ _: B; C. i+ x& Y2 y/ h" I
- Level5,% J/ a+ O+ x: j& T% a# u4 Z
- Level6,
7 N* Q3 s1 W* G, o% K - Level7,
/ A; W/ w1 j9 P. o9 [8 X - Level8,5 D, W2 c8 l7 ^( K7 J; [3 n# ]$ w! ?
- LEDOFF = 0x80
" L0 a4 T0 [' B/ ]" x7 `# S4 ? - };
4 E1 T) Q% v# ?1 V - : P* x; F. V9 W9 z6 }
- uint8_t NUM[11][5] =
9 S4 t/ Y! w$ [, d8 P: l - {
3 J$ k5 Q5 a# a/ Y. U - {0xFF, 0x41, 0x41, 0x41, 0xFF},//00 s* V1 b1 d+ `" T0 U( ]5 Y# i4 T0 |
- {0x00, 0x00, 0x7F, 0x00, 0x00},//1+ M% r* z: h) e, m! J: p% z( p3 e: M D
- {0x79, 0x49, 0x49, 0x49, 0x4F},//2
# f0 j; `5 Q9 g% s7 G - {0x49, 0x49, 0x49, 0x49, 0xFF},//39 e# u9 z. W1 {
- {0x0F, 0x08, 0x08, 0x08, 0xFF},//4
* H9 Z( O7 p1 o; e5 ?6 `! f! o - {0x4F, 0x49, 0x49, 0x49, 0x79},//5
6 L% P6 v! m! T3 t7 B - {0xFF, 0x49, 0x49, 0x49, 0x79},//6
) s4 C! O, s c4 W - {0x01, 0x01, 0x01, 0x01, 0xFF},//7+ u! U2 z0 V# l. \. S/ A
- {0xFF, 0x49, 0x49, 0x49, 0xFF},//8
) q4 @! S+ E+ d0 Y/ ] - {0x4F, 0x49, 0x49, 0x49, 0xFF},//9
9 F) ?$ |- d' m7 E' L) o' i - {0x00, 0x00, 0x22, 0x00, 0x00},//:
: h! V: Z- D8 j$ q - };
. O. x' F9 v+ F# Y [: z5 \
# _9 c4 u5 R5 p0 d- _7 ]- void TM1640_GPIO_Init(void)- |1 f# u6 M7 n) y7 M; P
- {
7 l! j' E$ }: T& U$ p% U - GPIO_Init(GPIOA, (GPIO_Pin_TypeDef)(GPIO_PIN_1), GPIO_MODE_OUT_PP_HIGH_FAST);
( z$ ?6 J) _1 ]. b/ ^ - GPIO_Init(GPIOA, (GPIO_Pin_TypeDef)(GPIO_PIN_2), GPIO_MODE_OUT_PP_HIGH_FAST);
8 J8 q2 s9 A/ p* @1 Y - GPIO_Init(GPIOC, (GPIO_Pin_TypeDef)(T2_Din | T2_Clk), GPIO_MODE_OUT_PP_HIGH_FAST);
. x2 w# f) Z0 s1 ?+ X+ X - }
' k. |* Z/ V: L" k0 l; M' S7 v
' b9 f) T% }# u' i7 N5 R* j- 7 r/ _6 L; x+ `4 t6 l
- void Delay(uint16_t nCount)
* F9 F( {) s. P, g8 Z2 ` - {+ I* T% i9 H* O% d% o1 V
- while (nCount != 0)6 ?2 a/ H! g" Y- O: q9 y0 E1 I
- {: B: ~0 J! v1 ~ C) y7 I; a
- nCount--;
5 U+ p c( P. u+ B, i0 V" ^( O! ?0 d - }+ U' M$ D* V/ n6 _
- }
/ d- m: q. g0 q/ D) V - / [0 s- t" m# {% x) M
- void TM1640_Start(void)$ M f! }5 w( {2 q7 F4 R' P( ?: }
- {
7 {2 S, _! ~6 w7 Z5 c& E( D5 Q# p; l - GPIO_WriteHigh(GPIOA, T1_Clk);! O( j& _; ]+ s; L! Y n3 p8 n. a& ]
- Delay(10);7 h; N- a2 j. e7 L5 o; Z3 _
- GPIO_WriteHigh(GPIOA, T1_Din);
+ A2 _" H6 j5 i6 J* D- \ M8 U+ d - Delay(10);' G1 _) v) }$ U& o& D/ l
- GPIO_WriteLow(GPIOA, T1_Din);
% l, F. J. o2 B6 p8 }# b5 h$ J - Delay(10);
: ]3 M, X8 O7 T" e) A - GPIO_WriteLow(GPIOA, T1_Clk);
( S5 Y4 \( K% n2 S - Delay(10);4 t. l% O1 M" O* \: t) `
- }# |: K5 h3 D3 N- b4 t
- $ F8 J' h+ ~8 X
- void TM1640_Stop(void) Q) C9 q$ l- h$ o( N' \
- {7 [' |0 r3 D& ^- q* s" w
- GPIO_WriteLow(GPIOA, T1_Clk);8 K9 x4 F$ c; x* z! h' p
- Delay(10);
& o m5 w; c) T k8 D0 @3 ] - GPIO_WriteLow(GPIOA, T1_Din);
. p; D" Z( n; y' `+ Q0 q - Delay(10);
4 v% f( w, p! K$ o% T) q - GPIO_WriteHigh(GPIOA, T1_Clk);; M/ m+ L6 |: U& u3 T
- Delay(10);% ?# |5 p5 ]: B" B( y/ ^4 D( B0 o. h
- GPIO_WriteHigh(GPIOA, T1_Din);9 [* {+ ?- Q6 D* n
- Delay(10);
" q7 H" i) m% H- p6 h; C/ c) _ - }
6 n3 \& W* u1 O - 6 |/ o5 G2 w5 I* T2 {4 x ^% g
- void TM1640_2_Start(void)
& C7 R" o8 q( j1 a7 A - {
3 ?2 e5 i. s, A' y) b+ W - GPIO_WriteHigh(GPIOC, T2_Clk);
9 U x0 p$ D, {$ g1 [, m. y$ U - Delay(10);8 z% i% R' j" I' b' k" a
- GPIO_WriteHigh(GPIOC, T2_Din);) b% B9 |: j& c! s! |
- Delay(10);
$ u4 f+ }+ `7 x! l5 t ~, J - GPIO_WriteLow(GPIOC, T2_Din);
% z! _6 N; V- w! h7 B - Delay(10); - L. F* d/ `* v1 y4 v' m
- GPIO_WriteLow(GPIOC, T2_Clk); \3 w9 G L- O4 A
- Delay(10);5 ~5 |0 d/ B4 j# I
- }
) ]) `- K" F* k% S. m - 8 k8 n6 w. ^. q5 E
- void TM1640_2_Stop(void)" T; m% |1 ~' F8 e
- {
9 \/ p0 M- c8 a6 T6 p% d - GPIO_WriteLow(GPIOC, T2_Clk);! G* L1 V& b8 ^. f/ B
- Delay(10);
' z$ W8 ?" H( c; s5 x3 c" [4 O - GPIO_WriteLow(GPIOC, T2_Din);# \$ Q3 _( G- g) g% Y
- Delay(10);* X. Z; i* r; j5 p" P+ f
- GPIO_WriteHigh(GPIOC, T2_Clk);
4 d/ s# Q: b I# G! L - Delay(10);
! @+ h i! P% y. @ - GPIO_WriteHigh(GPIOC, T2_Din);
8 M% l7 n7 H( F5 l - Delay(10);0 u5 A' f+ l4 L# K4 d: a
- }
& p7 O% r/ g+ i0 _" G y& C
+ @) y( S. R- n
+ T9 i4 B! e- I: Z- void TM1640_Write_Byte(uint8_t dat)2 R3 K! a# j+ O6 ^7 u! P0 c
- {
0 C, T2 _4 `/ k0 ^/ W. x- V - uint8_t i;
0 {9 Z \( N8 j- P5 n - for(i = 0; i < 8; i++)
" M2 \0 S: E/ G; a2 ~7 E" s' K% y - {, M* m) e1 M& r- N0 d
- GPIO_WriteLow(GPIOA, T1_Clk);
3 X, X& I0 U# _/ c. G - if(dat & 0x01)
0 [8 }8 s+ A0 C% F# d8 }9 ? - {2 ]/ z, b% C2 x, L/ o
- GPIO_WriteHigh(GPIOA, T1_Din);
1 G( v3 M. R1 H2 R E - }/ r0 v! `( M6 F$ w+ ^. D' j' m
- else w0 r7 j0 o) |% C4 b# a
- {
# a' ~0 x& v2 q. l8 ] - GPIO_WriteLow(GPIOA, T1_Din);
! D c" V% r4 Z - }6 O" p: C: ]: Q$ K3 R0 p
- Delay(10);
+ Z6 k- k( n6 T - GPIO_WriteHigh(GPIOA, T1_Clk);! a& R4 j: j% l$ p0 ?/ u" I( G, f
- Delay(10);
7 T' T, G$ Q8 ^2 E - dat >>= 1;
L! [( ]' C m# q Z- B - }
6 r) I. H' n( m7 @" T+ i - GPIO_WriteLow(GPIOA, T1_Clk);8 ^5 H$ S' r$ Z& U; W0 H, h( i! S
- Delay(10);
$ d) v y/ h/ o0 P - }: ?" f5 ]0 V% s( x
0 B% {# b, G9 P' s: D1 ^+ Y) L- void TM1640_2_Write_Byte(uint8_t dat)
+ @1 p* q7 u& ^* U# x7 U - {
" a1 S3 ~" S/ B9 W - uint8_t i;; H5 O1 j5 l7 R u! B6 I' M
- for(i = 0; i < 8; i++)0 n* {* B- j7 l$ v* n- I
- {
. H2 y" @0 F" z: [9 a - GPIO_WriteLow(GPIOC, T2_Clk); ( P7 q0 U. l% g! _! l! s- _
- if(dat & 0x01)' Y9 ~6 Q% X, i& g7 ~7 [0 t. K
- {
: J3 a! M5 k" U9 G0 t: c - GPIO_WriteHigh(GPIOC, T2_Din);" {& u5 f) W7 u' F# o0 ^
- }- J) t! z! b5 J- W5 M
- else
7 ]2 Y" C2 N ^4 ` - {
4 v, x! _' g; } x - GPIO_WriteLow(GPIOC, T2_Din);
+ d: g: s/ p+ i5 \ - }4 K* G1 l" q* d* i+ E1 i) k& l4 N1 x
- Delay(10);
1 t2 m4 F) @- A - GPIO_WriteHigh(GPIOC, T2_Clk);
4 Q1 O0 H* d0 j' A2 j7 k7 b - Delay(10);
; _9 U5 ?' E2 D2 Q: i) P9 Y) B. K - dat >>= 1;6 H2 C7 m; M6 C, p" n; ~
- }
" J( {0 ^/ s T+ ], L$ ~' J7 X4 i - GPIO_WriteLow(GPIOC, T2_Clk);( \' I0 \/ L1 M; Y" b/ w
- Delay(10);. ~% Q# ^6 H. D; L! r5 p2 [
- }) ^* x. n0 @# o" t. V
0 Z( y# w2 j/ z9 q7 n
' c- w6 x2 S/ z, d; l# {- void TM1640_Init(void)& v- N* h: `& n+ h5 S4 V. @
- {/ z: p, c# Z4 b8 z, l7 [% a
- TM1640_GPIO_Init(); 6 h2 h* {3 |5 p2 I( S
- Delay(10);- w* E: h8 g3 O2 C; r- ]/ A
- TM1640_Start();
! u1 V7 k, d* G" N& N% p P1 t+ R% o5 g - TM1640_Write_Byte(Level8); e8 ^3 F( O0 Q/ D& C+ l( a
- TM1640_Stop();1 C- w0 }0 D) R* r; F
- TM1640_2_Start();; e$ k/ ]: H4 p ~) p$ M. d9 K# [
- TM1640_2_Write_Byte(Level8);2 T1 A5 W8 `/ s7 ~" }; y2 v
- TM1640_2_Stop();6 D7 b* d; O! [3 G
- }
8 B$ P/ S! I1 F
7 ?! @5 R N" x- ; ^+ p$ d6 \; F: @' o; k6 s
- void TM1640_Bit1(uint8_t *Dat)8 R" Z" Q G2 i( J
- {
2 ~' f+ D0 o; n% P( N+ | - uint8_t i;: O$ J4 B2 Q1 V; q
- TM1640_Start();
1 |7 k# c, B, b, Z, ]. W - TM1640_Write_Byte(0x40);+ `8 q- Y6 g* y4 ^( P) A
- TM1640_Stop();$ C4 W0 L7 g: V6 o/ w
- Delay(10);
' g; n6 z' @. D4 [& [ - TM1640_Start();
' m, @! f0 W) S. a+ r$ j6 Y - TM1640_Write_Byte(0xC0);
; w% u" l o+ @( S6 Z6 D/ m1 |& B4 g - for(i = 0; i < 5; i++)$ r- K n2 M- s: g
- {
1 }( c7 h/ n# F - TM1640_Write_Byte(*(Dat++));8 I: O0 v7 ~3 _3 w" N% i+ U# m
- }
: B- U! h' y z& N* S - TM1640_Stop();
/ r& d5 s0 s! t4 Q - }. v3 A. p X% C) @3 K
0 t) {9 B$ D0 f# E- ?/ \+ @- void TM1640_Clear_C5(void)- ]1 ]5 Z4 h6 v, Q: G: r# b
- {
; l4 H1 M$ Q2 s* j3 Y4 s$ C - TM1640_Start();
) D% R) r2 g% o* E, B - TM1640_Write_Byte(0x44);" C7 P% r2 G: {' d7 [. V2 t! P8 V5 ?
- TM1640_Stop();
! _7 J! d7 {0 U/ G- k4 P* d0 g - Delay(10);
4 h+ n. x) l5 Z$ s* Y' L1 e6 B - TM1640_Start();. R/ B' T' }' L2 c R
- TM1640_Write_Byte(0xC5);
; J" Q6 j- X* a/ t, W - TM1640_Write_Byte(0x00);
9 p3 }# o J" J, u0 B' l+ _" J - TM1640_Stop();
: N! {: |5 E' c, k$ I8 E - TM1640_Start();% [; m. o, ]& ]
- TM1640_Write_Byte(0x44);7 ?" }) [- B" @- E2 G/ W
- TM1640_Stop();" t4 m* \% I1 F0 `0 U0 z- u
- Delay(10);
( U; e. r1 ^* d. O. h) a) V3 o - TM1640_Start();
1 D+ V2 t- w4 F! g' y - TM1640_Write_Byte(0xCD);
' U* ~5 X+ d; s$ c8 q - TM1640_Write_Byte(0x00);
; j9 y( z2 q7 b4 }/ W K) Y - TM1640_Stop();
, b6 H' c3 S+ } V; M0 Y+ E$ z - TM1640_2_Start();: O/ v( L5 Q5 ~) c* d, M
- TM1640_2_Write_Byte(0xC4);
* `5 w! D z0 ~5 n ] - TM1640_2_Write_Byte(0x00);
6 G: b7 q- Y I7 E7 r$ I+ A3 ^ - TM1640_2_Stop();
! z$ A- `3 |; T- C - }
8 P2 q6 ~2 z; B - " |2 X5 j1 [9 K* o3 x8 O2 K0 C
- void TM1640_ClearAll(void)& r* o6 Q( M6 U. o
- {$ g9 I: c" ^: i2 C0 c% ]
- uint8_t i;$ a! @# S5 X* f. D1 G9 z1 H; u! }3 F
- TM1640_Start();
8 v$ l0 b1 I, m1 M2 E+ z: ^ - TM1640_Write_Byte(0x40);
: k3 [# Z7 W7 n. N! X( o" K - TM1640_Stop(); d) w( Q. t( V$ h: ~# X% e5 a
- Delay(10);( i# o( d* {9 o3 |+ A) j
- TM1640_Start();
% R0 U4 l7 e9 c$ M8 r3 u - TM1640_Write_Byte(0xC0);, ` o/ P# O4 z1 d6 Y s: _
- for(i = 0; i < 16; i++)
' o, I6 t$ _9 v' x; ^$ n2 }6 N - {
p$ U: B1 ?4 \! `. z - TM1640_Write_Byte(0x00);
J6 N3 {( L6 P$ W - }! Z6 h( V9 n! G0 `% q" A, M H
- TM1640_Stop();
$ D$ M" J f% b& Z - TM1640_2_Start();
6 E% Y8 K* x$ e' _- ^% C - TM1640_2_Write_Byte(0x40);
5 X: V7 R) \+ i' @4 r' ` n) I - TM1640_2_Stop();6 Y. X' P/ d$ C( n8 A
- Delay(10);% j4 c% M% [3 n* e2 {- ~* |# P* x
- TM1640_2_Start();
' |& j$ A# B+ i5 r: A - TM1640_2_Write_Byte(0xC6);
* d1 l/ D- e4 \& I - for(i = 0; i < 16; i++)
) h; D1 p, V5 K" Q6 m& G1 c2 K B - {
9 D; ?/ f# _1 G- H, L - TM1640_2_Write_Byte(0x00);
' G3 [1 n6 S" J0 L - }5 w5 g8 @/ a0 q$ G/ R3 |5 l6 e& e
- TM1640_2_Stop();
% [( h) V4 k$ @4 Y: r - }
0 H8 W8 G( I7 {, @6 L' b' O# ` - 1 |4 H" }& s2 m5 B& k9 }9 b3 A6 A
- void TM1640_Bit2(uint8_t *Dat)( u/ b8 N' |4 w' o1 P# L3 `
- {9 s$ J; u9 C7 z0 A# G7 x; U3 t
- uint8_t i;5 @/ A, @9 F! g' D0 r
- TM1640_Start();- I' [ a. @; l- m4 S( P
- TM1640_Write_Byte(0x40);
3 \- f* e" \0 |6 ~% t, [+ E - TM1640_Stop();6 f, J- A8 X' S) [* y5 b, K/ X
- Delay(10);% f G2 G% e- f) d; E/ v
- TM1640_Start();5 S$ I' M8 J: o# S% E, u: U3 J* m
- TM1640_Write_Byte(0xC6);/ Z$ J- }/ r5 A* R6 N
- for(i = 0; i < 5; i++)+ E# u. \ r4 K; ?3 b. y
- {
X, f$ o6 h0 M- t+ u8 q8 x - TM1640_Write_Byte(*(Dat++));' k( D, J @9 c! a2 L0 u% Y
- }
9 V7 M4 a( O+ { e/ K6 c$ c - TM1640_Stop();
0 g, a$ }/ w4 T6 K6 Z - }
# X- n4 P/ y+ Z" A; i
: }+ {# d9 @. |' D3 T0 x1 k( k- void TM1640_Bit3(uint8_t En)
8 ?3 M$ q+ ?. U - {1 Q h; |/ d1 D: W0 @) v% I$ x
- TM1640_Start();" n! N. E) n" F! e) n8 A$ n6 K
- TM1640_Write_Byte(0x44);$ V1 ]- ?5 U1 @- K+ ?# z
- TM1640_Stop();
. H7 X4 C/ L1 {5 ]$ J/ p2 g - Delay(10);
4 {' K% V, \9 D - TM1640_Start();1 Z0 u3 i {6 a+ D$ i
- TM1640_Write_Byte(0xCC);' `) i% a" N, B& K9 G; w3 ]' K
- if(En). Z Q7 E2 z. ]
- TM1640_Write_Byte(NUM[10][2]);8 w) K; l! @9 @8 S2 b) w8 \& v
- else; c% |9 `. ?" A! `# M
- TM1640_Write_Byte(0x00);2 P+ g( ^: Q3 j6 C# j, | F+ S
- TM1640_Stop();1 u- @4 X7 ^3 @/ J8 q& c
- }
/ L. c* \6 N3 Z - 9 ^1 k* g P8 k
- void TM1640_2_Bit4(uint8_t *Dat)! r2 y% ~% t7 K6 K" ?' O* r2 D# a! O% T
- {
v* q! x8 K7 x5 E* x - uint8_t i;
, k0 @# E( Y% _+ d' O - TM1640_Start();: s4 G: Z; s0 B/ @7 C
- TM1640_Write_Byte(0x44);% r3 U# W: b2 H/ V, t5 X/ r
- TM1640_Stop();) \. H+ i1 e+ F2 N/ k5 T' s
- Delay(10);
& H; r* o7 Z$ {" K/ E% C& f - TM1640_Start();5 @6 E( V# k d1 c' e/ K V) m
- TM1640_Write_Byte(0xCE);
; A5 u U; ?6 F4 H/ A- x+ C$ i# a - TM1640_Write_Byte(*(Dat++));
2 D4 G0 ?9 H1 R6 ~ - TM1640_Stop();% \: [. q' w. Z+ @) A; T
- TM1640_2_Start(); T( J3 \# ]! Q. j/ T. k
- TM1640_2_Write_Byte(0x44);
5 h" Z: y* @ ^ a - TM1640_2_Stop();
8 n! \( q3 o5 m+ D+ |- c, X - Delay(10);, C! Z9 Y; i$ g6 f
- TM1640_2_Start();' a+ N% A% @4 q
- TM1640_2_Write_Byte(0xC0);
# a6 N2 v. t* U7 s& V3 P% |. W - for(i = 1; i < 5; i++)* ~" r/ N, n: M- d$ ~
- {/ ]$ q8 Y7 E/ s
- TM1640_2_Write_Byte(*(Dat++));4 F% {2 i0 p% r) i: S+ _# l
- }
4 O4 A. U. X9 Y - TM1640_2_Stop();( b1 s% `! v7 @( {
- }
9 Q: e! v' a; z0 z9 E
# s$ w1 k* z* q9 Y) L- void TM1640_2_Bit5(uint8_t *Dat)" D2 S' f6 Z z
- {3 @6 p! W6 M7 o3 ^
- uint8_t i;
4 T; n* s( |+ e- g! _; l - TM1640_2_Start();7 A8 i; p8 n3 x8 [* {
- TM1640_2_Write_Byte(0x40);# l& Q* k/ Y2 Y! P$ U
- TM1640_2_Stop();+ X G$ ?. Y% j5 q( m( ?( V' S3 o. e
- Delay(10);, Y. Q4 I k5 r/ q. p3 O
- TM1640_2_Start();
7 @6 h7 B* j$ f: J7 ~0 V: d0 B - TM1640_2_Write_Byte(0xC5);4 V/ a6 t! J" V6 Z: x: e; R. b
- for(i = 0; i < 5; i++)
u: H4 s( w0 ]( d/ B( K - {9 {: I( J! X( Y. b
- TM1640_2_Write_Byte(*(Dat++));2 l: Y0 w7 ?# s7 K# M; y
- }
4 X4 u# B, Y. I+ _/ B4 h; v, k. \/ g - TM1640_2_Stop();" Z* y( `! q: Q3 r( j7 W
- }
复制代码 --------------------------------------------------------------------------------------------
# J; I' z5 ~( K, ] F% x2 @
6 h1 ^+ Z- S9 {7 f n
, T: |+ t! N! b# e5 [, I0 H
调试器都忘记放啦,做了几十片,大家可以看一下) ]/ d# y1 U( k: V+ B% i8 {' ^
|
如果是一个段串联几个,就要用扩流,或者用灯饰类的芯片;下面一张图是用TM1812做的,驱动4寸数码管,12通道的,一段串联3个LED灯; 数码管不多可以用9通道的4 j9 l8 v" M- |
$ ?9 W6 k! ?- N/ e7 o. H r$ `
$ {* R& {9 s. k/ p
驱动非常简单啊,点阵一个5排,我带了25排,差不多就是带25个数码管了,也很好,总线速率也很快,并没有 出现你说的那种不行
你要怎么扩展,一颗芯片可以驱动128个LED灯,如果需要的可以用TM1680,可以控制384个点;
0.8
嗯,这家貌似有很多这样的芯片,,方便多了
我宣传有样片没
应该和楼主TM1640功能类似吧