上次已经开启了Linux系统,并且有GUI桌面,虽然不是比较熟悉的Qt环境,但也是可以做个小应用感受下stm32mp135系列产品的特点。 首先要搭建开发环境,毫无疑问安装个SDK就行了,官方WiKi页面啥都有。 基于Ubuntu18系统,补充安装所需要的库和小工具 更新软件列表 安装python3 - sudo apt-get install gawk wget git diffstat unzip texinfo gcc-multilib chrpath socat cpio python3 python3-pip python3-pexpect
复制代码 其他工具- sudo apt-get install libssl-dev libgmp-dev libmpc-dev lz4 zstd
复制代码 编译器等组件 - sudo apt-get install build-essential libncurses-dev libyaml-dev libssl-dev
复制代码 默认使用python3 - sudo apt install python-is-python3
复制代码 其他有用的工具 - sudo apt-get install coreutils bsdmainutils sed curl bc lrzsz corkscrew cvs subversion mercurial nfs-common nfs-kernel-server libarchive-zip-perl dos2unix texi2html libxml2-utils
复制代码 执行完以上内容,就可以下载和安装SDK软件包了。从以下地址获取最新的SDK https://www.st.com/en/embedded-software/stm32mp1dev.html#get-software 我还是在windows下面下载的,然后拷贝到了虚拟机使用。使用tar xvf 解压该压缩包。chmod +x 赋予可执行权限。然后运行安装就行了,默认的目录是/opt/st/stm32mp1/,,这个路径就可以,直接继续安装。
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1 a8 j% O7 j6 n! T 然后就学着官方文档的样子去验证下SDK是否安装成功
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7 C! h! Y9 a9 D& S8 t. n 以上就完成了编译环境,至于说开发环境,一般还得有个IDE或者其他编辑器加调试工具。这里打算做的小程序使用gedit就行。 首先拷贝官方给的demo程序,基于GTK得hello world。 - #include <gtk/gtk.h>
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, J) k5 ^; {7 W* ?, H6 c' Q+ v- static void6 m4 U6 g3 E6 H( H
- print_hello (GtkWidget *widget,
' k; H2 n: ]0 K1 i& M - gpointer data)# V% j6 a: i$ [
- {
6 A% |4 ]* M# T- Z - g_print ("Hello World\n");
* ?, m2 M Z& o% S& @; h1 V - }
! M: d! i' Q0 u4 }
# }4 I. K7 w- n( ^- static void
" \' S/ P; x( c3 f) m& B6 e, U1 `8 u - activate (GtkApplication *app,# L- Y7 S( O7 M* S$ F
- gpointer user_data)
# h% _: U7 I4 k - {, k- f- `) j! v1 Y2 V' [
- GtkWidget *window;4 F- ~- q4 L$ N5 g S" j P
- GtkWidget *button;
1 `1 s! ^6 }. U2 Q# N, t - GtkWidget *button_box;) {5 [- J$ e( G, ~( s$ p+ Z3 y
- 4 x4 s- D" q# t/ n9 W) u! Y
- window = gtk_application_window_new (app);5 q" Y! P7 [. ?+ `
- gtk_window_set_title (GTK_WINDOW (window), "Window");
* t9 v1 ^& o. K; n. {) f# W0 b - gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);, x. u) X2 k6 Y, j+ r
4 W+ x9 Q2 [1 U$ n4 }- button_box = gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL);
- \# Z! B; p0 { - gtk_container_add (GTK_CONTAINER (window), button_box);; m% a+ _6 U$ u: j: m
/ F( y3 Z& h, S, }0 a- button = gtk_button_new_with_label ("Hello World");6 D( Q$ L. D- A
- g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);: D- [- h4 v! x3 @4 M) M
- g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);0 c1 `' C" R: N) J
- gtk_container_add (GTK_CONTAINER (button_box), button);
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1 X) b0 y0 |8 G1 y$ ]6 ?; ]- gtk_widget_show_all (window);: J) E6 t) Y' X/ o$ Z
- }
# d2 @5 X$ A# o6 n - # Z0 A9 j+ ?$ [! x4 A; u* W* L
- int
$ u! j) V7 a( ?0 R% O u) o - main (int argc,2 v3 E) ?( O( g4 Y+ M7 N9 J6 p- P
- char **argv)5 u- i" K, R% I: j% G
- {
/ C2 D; w+ e3 W' r/ F - GtkApplication *app;
' q W2 a9 t8 \; Q5 K" n/ c& P - int status;
& D: S* S; r9 f9 ?! n - : x$ y& n' e2 l5 N: \1 ^: H9 C
- app = gtk_application_new ("org.gtk.example", G_APPLICATION_DEFAULT_FLAGS);
, z s" f4 a6 y7 C- W3 e4 b - g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);( ~( c0 V: S) u7 k T2 y8 z
- status = g_application_run (G_APPLICATION (app), argc, argv);5 n( O! r5 U6 d! z. J" _
- g_object_unref (app);
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- return status;+ X1 T, A7 Z, l" q. Y
- }! J$ }% r. [1 ]0 P' R% O3 U% T& ]
复制代码 然后也复制一个makefile文件,其实单个文件,直接使用gcc命令也可以得。
4 R: V- M3 m6 A: z0 k8 E- PROG = gtk_hello_world3 d9 G2 q" A7 \2 s2 W& T; s% q
- SRCS = gtk_hello_world.c8 Q8 g; x `# t6 Y% ?: F9 r0 ]
- , T" h" q, ?: W& x" a; O# |& u/ k
- CLEANFILES = $(PROG), D& O8 o% |, T! x
- * N. r: c( N) C9 B+ b
- # Add / change option in CFLAGS and LDFLAGS2 E% k0 W" Y* F' D
- CFLAGS += -Wall $(shell pkg-config --cflags gtk+-3.0)+ L* R. Q3 C' A( k
- LDFLAGS += $(shell pkg-config --libs gtk+-3.0)2 r1 Q/ w- p, h3 a8 I1 a( m
+ n3 }, `- H8 O- all: $(PROG)
) F( T- i) ~6 r, O' v - 3 \5 p' c8 l& Z
- $(PROG): $(SRCS)
. w3 r! r& d- q) }# T6 j- x, p - $(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS)" t* d5 N$ W/ i) D
- " [! b3 e# @, A' b4 E2 R
- clean:
! ~. K! o8 \2 h4 t# ^/ {" @! k - rm -f $(CLEANFILES) $(patsubst %.c,%.o, $(SRCS))
- P) ]. v9 q p8 `" j# N& {5 |' g
复制代码 然后make,scp到开发板执行程序,就可以看到一个hello world窗口出现在之前得桌面上了。
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接下来改程序,说实话没用过gtk,不过看了下helloworld得程序可以看懂,所以也百度了一下,就基本做出来了。9 f1 N1 S' p4 L6 L
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6 i2 u) `, I3 H* g7 v- #include <gtk/gtk.h>
+ k5 g% _# ~7 B4 b8 k - #include <stdio.h>
7 a0 q. @/ E. L1 Y2 a7 j - #include <string.h>
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2 y9 W# n R: o" ?! @: u- char buf[50] = "";
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2 T. f. U/ r8 L, _3 v) P- void calc(GtkButton *button, gpointer data)" R, a9 j: ?4 v7 _3 `; _' O" p8 P+ v
- {
8 v& z Y3 C6 f9 w) e - const char *text = gtk_button_get_label(button);
6 u/ O8 ]. b+ E! f# P) Y5 [
. t0 H/ v3 r" E, k" f- //退个操作
4 }. e/ P% C( ] - if (0 == strcmp(text, "c"))
6 k. _+ ~- p4 a( R8 O8 E - {* w. ^: T/ Y/ Z( z# b) F
- buf[strlen(buf) - 1] = 0;. D( J$ z# f0 T
- }else{6 t( G. k# A) }. J7 A5 s# E `
+ G. v( o3 S' s" q/ N- int a = 0, b = 0;
: k G: b: y: v _ - char c;
/ y" [) @8 J' `; j. v$ k- y: J - strcat(buf,text);0 f/ Q/ t' Y$ R6 g
) X% ^2 s5 q o Y+ m( f1 ]/ o# r- if (0 == strcmp("=", text)) {
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0 A2 a. M f& \4 L2 Z- sscanf(buf, "%d%c%d", &a, &c, &b);5 f3 V# h; U' l1 I) g
- / x9 L/ ^, \* P: U- {6 u
- if ('+' == c) {
" u. i4 Y5 V/ h5 _/ ^ - sprintf(buf,"%d", a+b);
' G! a9 o* G x% D - }
( b3 l- o7 i) b* a$ F - else if ('-' == c) {* j+ D' U& Z8 W9 o
- sprintf(buf, "%d", a-b);$ K' z( I- a1 K; g9 h, l0 [
- }
8 a" N0 Z' o' I. T8 r8 A4 d1 G - else if ('*' == c) {2 \( X. J! [/ Q* ?: P9 X* S. Q
- sprintf(buf, "%d", a*b);
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: l( \* {9 u2 _; ]: v' L - else if ('/' == c) {
: F `5 P# e( ]4 M9 G, A - sprintf(buf, "%d", a/b);
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7 p6 ^! D. p: n4 Q0 J* _6 `1 r4 }! S/ t - }3 b" Y* H/ `8 T; W
: S/ ]4 Z/ B% J- g- Z- gtk_entry_set_text(GTK_ENTRY(data), buf);
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6 `, n; m4 b, M% {0 q5 e- return;
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! G: L% c1 c+ a! z* s' i+ Y- int main(int argc,char *argv[])
# B2 S$ ?% U6 d+ | - {
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4 P/ B/ L& W! g8 i& M* p/ L- gtk_init(&argc, &argv);
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/ ^3 l% R; K- N! y) ?3 |- GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
3 I$ c. p/ L7 ^' X - gtk_window_set_title (GTK_WINDOW (window), "calc");6 j5 @4 O" Z) S7 ^2 X* e
- `; h r6 b' Z! I
- //创建一个表格容器5行4列 B z: b4 c- i; ]9 u) r% J) D4 V2 t
- GtkWidget *table = gtk_table_new(5,4,TRUE);) Q. O& J& n& u( x, a. h! N
( u _+ p' t5 ?: ]1 \0 Z- gtk_container_add(GTK_CONTAINER(window), table);
: S+ @+ j; c4 J3 _ - 9 {) b0 V2 A6 Z. V
- //创建一个行编辑
9 ]* }- A* }2 X/ f) ^; _ - GtkWidget *entry = gtk_entry_new();
/ r) n9 y/ N% Z9 } - W2 U. O7 H" \! x0 o, l! @+ g( O
- gtk_entry_set_text(GTK_ENTRY(entry), "0");+ \% h* B& Y! q) I- F1 h: }
- , q; _* ~) ?% ?, g c
- gtk_editable_set_editable(GTK_EDITABLE(entry), FALSE);6 K8 p; n; O" E! N% T- C0 Q7 i
2 G9 I8 I, L( o4 A9 b9 J3 Q6 h' M, p- //创建多个按钮& V5 h6 e, {" v# a/ V3 }7 Q
- GtkWidget *button0 = gtk_button_new_with_label("0");
0 J' g1 d* ]5 K. x2 e - GtkWidget *button1 = gtk_button_new_with_label("1");8 p8 I5 i9 f# \0 T$ i; f% W. D! J
- GtkWidget *button2 = gtk_button_new_with_label("2");
9 } D* v; \5 f* f' I% p - GtkWidget *button3 = gtk_button_new_with_label("3");5 b/ f) r8 F1 X* Q/ f7 G" V- G
- GtkWidget *button4 = gtk_button_new_with_label("4");5 A- M7 ?& r* e, d/ B: y
- GtkWidget *button5 = gtk_button_new_with_label("5");
+ L$ @( P$ o: ]1 e - GtkWidget *button6 = gtk_button_new_with_label("6");6 A( X$ m4 c1 n1 W! r5 q9 @
- GtkWidget *button7 = gtk_button_new_with_label("7");6 x; y# J6 _, V1 U4 u
- GtkWidget *button8 = gtk_button_new_with_label("8");# P. R8 T, ^* H
- GtkWidget *button9 = gtk_button_new_with_label("9");
8 _7 F2 h3 s) L. T2 t% o& N
$ X/ F& y& A# l: l H, V8 p; l3 @- GtkWidget *button_add = gtk_button_new_with_label("+");
' Q1 H3 y, M7 E! V3 I+ z* e - GtkWidget *button_minus = gtk_button_new_with_label("-");( D; A+ x. p# V9 w+ s1 |3 _
- GtkWidget *button_mul = gtk_button_new_with_label("*");
1 m4 `4 S- H! ]' S4 p" A( O M - GtkWidget *button_div = gtk_button_new_with_label("/");
. n! @6 }4 |. l2 E$ v4 z( I - GtkWidget *button_equal = gtk_button_new_with_label("=");
9 }8 D* W# F4 ~ - GtkWidget *button_delete = gtk_button_new_with_label("c");! U/ R' ~; s4 s: S
- * s. H; |* g/ l: V/ a J+ y/ P
- - u: Q1 ]: m1 J( t/ [. G, I5 t
- gtk_table_attach_defaults(GTK_TABLE(table), entry, 0, 4, 0, 1);0 ~+ d1 Q5 d% ^, ^
& {2 ^. z& B5 H! ^+ n5 l- gtk_table_attach_defaults(GTK_TABLE(table), button0, 0, 1, 4, 5);. K2 y' q# [9 @$ o
- gtk_table_attach_defaults(GTK_TABLE(table), button1, 0, 1, 3, 4);
7 r' N* K( c% i4 } - gtk_table_attach_defaults(GTK_TABLE(table), button2, 1, 2, 3, 4);* E' ~0 @" }* n# R% a6 w& M
- gtk_table_attach_defaults(GTK_TABLE(table), button3, 2, 3, 3, 4);
. R' G# Y0 e7 `+ m: `1 T - gtk_table_attach_defaults(GTK_TABLE(table), button4, 0, 1, 2, 3);. I W* w* C. a; w2 p
- gtk_table_attach_defaults(GTK_TABLE(table), button5, 1, 2, 2, 3);: z& H' [9 t8 G% E
- gtk_table_attach_defaults(GTK_TABLE(table), button6, 2, 3, 2, 3);& L4 ~0 O+ y; l8 B
- gtk_table_attach_defaults(GTK_TABLE(table), button7, 0, 1, 1, 2);
6 p- o9 s! H: ]/ N - gtk_table_attach_defaults(GTK_TABLE(table), button8, 1, 2, 1, 2);
1 } V) N, U5 ~# a+ Q0 c - gtk_table_attach_defaults(GTK_TABLE(table), button9, 2, 3, 1, 2);' n3 P1 u! W- Q$ Y5 s& X( E" {4 g
- & @3 V* g: S; N$ K( y# x
- gtk_table_attach_defaults(GTK_TABLE(table), button_add, 1, 2, 4, 5);7 r( e, W0 V; i
- gtk_table_attach_defaults(GTK_TABLE(table), button_minus, 2, 3, 4, 5);& O3 }' Z& c5 s' b( C& u: ^: s
- gtk_table_attach_defaults(GTK_TABLE(table), button_mul , 3, 4, 2, 3);+ S+ U6 {; x3 B' U" J
- gtk_table_attach_defaults(GTK_TABLE(table), button_div, 3, 4, 3, 4);
/ G }2 p" ]; t1 b% Z- s - gtk_table_attach_defaults(GTK_TABLE(table), button_equal, 3, 4, 4, 5);4 h/ s! l: M. L* q7 O& o$ X% g
- gtk_table_attach_defaults(GTK_TABLE(table), button_delete, 3, 4, 1, 2);
6 c. e: e: z% o4 X; h4 f
- }1 J! f) j- S6 I, L, [- //注册信号函数,calc()! W" C) ~1 y* K; _
- g_signal_connect(button0, "pressed", G_CALLBACK(calc), entry);
' Q i, U" i# M7 y) S - g_signal_connect(button1, "pressed", G_CALLBACK(calc), entry);; ]# o' k1 X0 A* c) l( T
- g_signal_connect(button2, "pressed", G_CALLBACK(calc), entry);
7 I1 r& C) d( I$ v U: m M& h - g_signal_connect(button3, "pressed", G_CALLBACK(calc), entry);
, S9 s/ a1 M. {7 t' C0 h - g_signal_connect(button4, "pressed", G_CALLBACK(calc), entry);# X7 |( ~# q8 @! D1 e0 a, x
- g_signal_connect(button5, "pressed", G_CALLBACK(calc), entry);! ^: l! \4 c% y1 o+ C" E4 Z- B
- g_signal_connect(button6, "pressed", G_CALLBACK(calc), entry);
* D* `0 M$ Z# U i - g_signal_connect(button7, "pressed", G_CALLBACK(calc), entry);
" Y) n- N7 D- ?0 A7 p' q: \2 k - g_signal_connect(button8, "pressed", G_CALLBACK(calc), entry);2 O: k: C9 T z) m r: p* V
- g_signal_connect(button9, "pressed", G_CALLBACK(calc), entry);* r# V# b- O: P( K! w1 ~4 @
- / Z6 p( o0 x& n5 t: q
- g_signal_connect(button_add, "pressed", G_CALLBACK(calc), entry);( O7 |: L: w. i1 A
- g_signal_connect(button_mul, "pressed", G_CALLBACK(calc), entry);
E6 c5 ?& i) G7 G - g_signal_connect(button_div, "pressed", G_CALLBACK(calc), entry);
' ]; J) P9 J# U+ E! u& T! r - g_signal_connect(button_minus, "pressed", G_CALLBACK(calc), entry);6 K8 G. J7 @ [7 w/ n
- g_signal_connect(button_equal, "pressed", G_CALLBACK(calc), entry); |6 E6 e5 a2 c2 Y3 a; c) G
- g_signal_connect(button_delete, "pressed", G_CALLBACK(calc), entry);" P5 D2 ]+ v+ b& }+ K5 H/ }
- 3 P) t2 [ |- E& I J: y' ^
- D+ y3 l9 T. G
- gtk_widget_show_all(window);
6 L. ^; y* N- A9 f0 D - . B% P1 a7 y, Q6 C' u, u
- //主事件循环, g5 f. @0 X2 b. T$ \3 t$ K3 j
- gtk_main();& b' v& G% g& }& R2 h8 U
* b7 p$ z6 H1 C# \" `- return 0;
& U E9 W8 x D - }3 W" Y4 A0 w6 ]8 h" J* A0 {
复制代码 以上程序,编译运行后,就可以有以下得效果
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操作和UI都是比较简单得,就不演示过程了,系统得触摸驱动也是做好的,gtk只管做应用就好了。操作也算流畅,毕竟也没涉及到复杂的图表渲染。 搞到这里,发现其实不复杂得GUI程序用这套现成的框架倒也是挺方便。Linux系统下其实资源很丰富,软件开发方式也很多选择,所以不多做逗留了。这款开发板还有一大特点就是可以按照以往STM32单片机得方式进行使用,所以后面感受下1GHz的单片机开发方式。 |