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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然后就学着官方文档的样子去验证下SDK是否安装成功8 H1 S$ w+ E" D4 X, ?6 ~8 y- \9 \
' Z7 w$ k" T1 i% u 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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$ n1 T& X+ r# [, ]% T- static void6 \* U" Y& \4 c% i1 {; o) f
- print_hello (GtkWidget *widget,
* K1 ]- N* Y/ F0 q - gpointer data)
- P+ q: M) ?2 P5 j) V - {$ b P3 D% E3 N1 y9 d3 q
- g_print ("Hello World\n");" c" x6 o% C+ v
- }$ h4 c, ]1 ` T% P5 U
2 F0 F9 C# H; F- static void6 c* c$ R) G4 X1 ^3 R
- activate (GtkApplication *app,
' N; r1 ~# E6 b: H/ f - gpointer user_data)
9 ]- J- P1 x' E4 ^4 l4 o3 Y - {# E7 q7 T- s3 L% `" `# y6 f% ~
- GtkWidget *window;; v7 F+ N1 `3 x6 ^$ R1 c9 y# }* H
- GtkWidget *button;
/ y; U( i4 H9 F3 T# S - GtkWidget *button_box;
2 y$ [/ A! t9 Y4 G3 l- ?: n2 l - D' N, ?4 @1 q9 J7 x
- window = gtk_application_window_new (app);7 Z/ I1 n) H: ~0 Z
- gtk_window_set_title (GTK_WINDOW (window), "Window");
; U" ]) Y* N; K - gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);3 ^* V% A; w1 n, }7 }$ ?
6 A q( M3 V9 e h/ M: N- button_box = gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL);
& m. |" g* D9 g8 c - gtk_container_add (GTK_CONTAINER (window), button_box);
# n; i$ d' z( ]' K8 K H, `
+ f0 `. B0 v$ g# Y% }" B- button = gtk_button_new_with_label ("Hello World");5 N% h2 X- k Q( a% `+ Q) [& V O
- g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);6 y* D: q s3 @0 O9 C. W$ U
- g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);
) q$ n# u' x- m8 ?3 c! a - gtk_container_add (GTK_CONTAINER (button_box), button);
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- gtk_widget_show_all (window);
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- H0 W# g2 D: Y. I1 J - . T" m0 C# M) E
- int, {( n% E: q/ @1 ^; \: [- \( Z* Z
- main (int argc,$ O t1 @$ O' ~8 h- t8 l+ x% j; m
- char **argv)
- K2 F# Z: l- p/ E% h% ]* g - {
: m7 s. P. s& t1 z3 H, b, x - GtkApplication *app;
. @1 U. t: q' X - int status;3 S$ x b; _! J6 t
9 R3 u$ n ]4 L( C; g- app = gtk_application_new ("org.gtk.example", G_APPLICATION_DEFAULT_FLAGS);
) T% r5 i9 m0 H( H - g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
z: U1 _0 M' {- O c/ h - status = g_application_run (G_APPLICATION (app), argc, argv);
1 }" T0 A7 w! m) |/ f# u - g_object_unref (app);
- _/ D p+ e& |* z$ {( b
' m$ \8 O" {$ Q6 i1 `' y3 V- return status;4 t3 r- K, X4 `8 @9 b
- }
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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。 ; L1 _8 n# F4 ?9 N5 G
- PROG = gtk_hello_world( g% L8 ]3 Y y
- SRCS = gtk_hello_world.c/ D1 e s" \. T3 I. B6 C; [4 c
- 2 C8 t# k( v! O8 V
- CLEANFILES = $(PROG)9 M N+ m; p7 ?( K4 b0 S$ u2 P
% R2 i5 {7 J* x2 f; p- # Add / change option in CFLAGS and LDFLAGS
% e W8 J+ V0 `% Z& M - CFLAGS += -Wall $(shell pkg-config --cflags gtk+-3.0)( k0 n6 c2 p2 o" H2 k; [( s
- LDFLAGS += $(shell pkg-config --libs gtk+-3.0)
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- all: $(PROG)
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- $(PROG): $(SRCS)9 m! M5 d5 A. K' H" P& k4 m
- $(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS), ?# q J. o- l# }! Y+ ^# q% D
- ( ?- H( w) N4 v) H2 d: m O
- clean:) J4 ^9 Z3 Z9 ] K) V* W
- rm -f $(CLEANFILES) $(patsubst %.c,%.o, $(SRCS))
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复制代码 然后make,scp到开发板执行程序,就可以看到一个hello world窗口出现在之前得桌面上了。
9 x* s$ k! p4 Y" \1 g% ` 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。5 o ~+ I/ R2 \# j
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0 e; o! A8 l2 `' }& i- U( }- #include <gtk/gtk.h>
# \4 P2 S3 }+ P. P0 i+ ^ - #include <stdio.h> H) q: d0 K L7 M
- #include <string.h>7 B" W& }: `" I- M2 V* ~
/ ?3 ]" ^2 w! m& F- char buf[50] = "";# R$ H9 X% x* R# S/ T
- 2 v+ c$ h6 N4 u8 ]& B0 N& F% B1 B
- void calc(GtkButton *button, gpointer data)
) @! v3 s% Y, O# e. e4 L7 n1 z - {" _5 ~% c; Z1 E2 u
- const char *text = gtk_button_get_label(button);6 G% V/ P: v6 X+ r# c9 r- l- v
% G2 F% }/ I+ I6 J) a; K- //退个操作
! e% L/ Z- u9 o% _) b& ] - if (0 == strcmp(text, "c"))9 L, q: S) T9 x* k1 \
- {8 H, h) _7 T4 x" E. N; Y0 D% b8 S
- buf[strlen(buf) - 1] = 0;" ?& {: }' G6 @/ i7 r
- }else{. A- ^* L( j9 F) E" ]: K
! ^1 U# ]# S9 D0 h- int a = 0, b = 0;
9 H+ X2 q1 L$ Q, p: | - char c;
/ o' n( P T( Z* R) Q6 t8 q - strcat(buf,text); u" J+ k1 I V( x! W+ O, t3 `. ]
- l, P n) F* C. M- if (0 == strcmp("=", text)) {
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- sscanf(buf, "%d%c%d", &a, &c, &b);; |. M9 x7 M% y' }$ N5 G, }
- 6 K) O- a: ^4 g, q) I, e
- if ('+' == c) {0 H; m6 ~4 q0 J4 H) g0 P# G, `* v
- sprintf(buf,"%d", a+b);# O7 ^- @* X8 a7 A; W: g4 n
- }
3 [1 k, e) A+ N& K' p: I - else if ('-' == c) {7 L: ]; l; z; d/ @% [+ V' ^
- sprintf(buf, "%d", a-b);
k/ e# H" u. ?5 l y+ j" z - }
7 y$ o9 F [. E/ x0 _; Y6 L - else if ('*' == c) {; d6 c4 s4 h! ~' G* K1 w5 [/ l
- sprintf(buf, "%d", a*b);
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- else if ('/' == c) {
9 h; V5 @" Z4 v3 F+ i/ x' ~ - sprintf(buf, "%d", a/b);1 f( w( a1 q- R+ F& ~ {
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- 7 K. f3 v4 p; l5 S: H. F
- }
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: j0 c% {* u2 y) f0 ~- ]4 g- gtk_entry_set_text(GTK_ENTRY(data), buf);; }" Q' c+ F2 l H; C& D& `' T
- # |# S0 }, M5 A, B4 ? b
- return;
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?# D* N6 {9 j0 A- int main(int argc,char *argv[])
7 r8 [& g* V, z, i - {
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+ f% E; D% y3 J5 X9 J; k2 A- gtk_init(&argc, &argv); S, }# D( U& P1 ~9 w
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- GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);' Q6 f# s% J c% J& y- U9 h: {
- gtk_window_set_title (GTK_WINDOW (window), "calc");
; ]. q, n2 U- E% m9 Q7 ]& j - 2 o2 e/ I# ?* T/ O, D+ L: ^
- //创建一个表格容器5行4列
2 c' P( n% t$ W$ I - GtkWidget *table = gtk_table_new(5,4,TRUE);
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- gtk_container_add(GTK_CONTAINER(window), table);
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4 ^& t% `( Y' L. |% F$ A- //创建一个行编辑7 t9 g6 d! ?. u9 s( v
- GtkWidget *entry = gtk_entry_new();3 D2 s& c* M0 g6 |5 `$ w2 R
- 8 I# \# T# I/ g5 Y
- gtk_entry_set_text(GTK_ENTRY(entry), "0");4 w) l$ j6 h1 q4 E
- 0 r- A- x$ H2 R# Q7 I! l
- gtk_editable_set_editable(GTK_EDITABLE(entry), FALSE);
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/ o! {" L/ ^0 P3 T- //创建多个按钮
5 h1 G5 o. d# C/ I3 s - GtkWidget *button0 = gtk_button_new_with_label("0");% u6 u1 ?# ]3 g& o
- GtkWidget *button1 = gtk_button_new_with_label("1");1 I" H3 b! {2 T, G1 r& Z& M
- GtkWidget *button2 = gtk_button_new_with_label("2");4 E1 j5 w9 K9 b9 W0 d3 F0 v
- GtkWidget *button3 = gtk_button_new_with_label("3");
1 Q$ w5 w# Z, ]& H& Y - GtkWidget *button4 = gtk_button_new_with_label("4");6 z0 Z u9 ]/ B: a
- GtkWidget *button5 = gtk_button_new_with_label("5");
' a/ A3 G- P8 c4 k - GtkWidget *button6 = gtk_button_new_with_label("6");9 k# M/ F, _2 T
- GtkWidget *button7 = gtk_button_new_with_label("7");
% l0 B5 a) `3 X/ f - GtkWidget *button8 = gtk_button_new_with_label("8");$ p% g3 t g- i3 ?# {7 d; A% o- N" I
- GtkWidget *button9 = gtk_button_new_with_label("9");+ D# j9 s# C5 x; j9 M
- ! T5 X8 b% l+ x2 l1 a
- GtkWidget *button_add = gtk_button_new_with_label("+");
1 Y& O! H, b9 o# }+ W3 z; y6 S8 Q - GtkWidget *button_minus = gtk_button_new_with_label("-");
$ j M! z$ X5 k. e4 U1 w9 V$ M - GtkWidget *button_mul = gtk_button_new_with_label("*");) T. v! ? [$ g
- GtkWidget *button_div = gtk_button_new_with_label("/");
& \( u0 b7 J7 \2 `2 M: l9 z - GtkWidget *button_equal = gtk_button_new_with_label("=");
}! G! x% X& i - GtkWidget *button_delete = gtk_button_new_with_label("c");
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* g; j$ O2 a4 d" ^- % B5 X; r; k5 M
- gtk_table_attach_defaults(GTK_TABLE(table), entry, 0, 4, 0, 1);
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- gtk_table_attach_defaults(GTK_TABLE(table), button0, 0, 1, 4, 5);
- {; L% e, d: D# }9 r2 X - gtk_table_attach_defaults(GTK_TABLE(table), button1, 0, 1, 3, 4);. _% w8 f+ L. y* v! h Q
- gtk_table_attach_defaults(GTK_TABLE(table), button2, 1, 2, 3, 4);
J! a, v; Y& a+ ^ h- b - gtk_table_attach_defaults(GTK_TABLE(table), button3, 2, 3, 3, 4);
2 y( R, `6 P& j/ g* k' |+ W _ - gtk_table_attach_defaults(GTK_TABLE(table), button4, 0, 1, 2, 3);% Q# P6 F& t9 I$ h0 L2 J
- gtk_table_attach_defaults(GTK_TABLE(table), button5, 1, 2, 2, 3);- n# ~4 N. k: E7 {
- gtk_table_attach_defaults(GTK_TABLE(table), button6, 2, 3, 2, 3);
2 f0 g' A& o7 D$ g8 l8 s8 h A; r - gtk_table_attach_defaults(GTK_TABLE(table), button7, 0, 1, 1, 2);" x; n# L+ P1 G6 v* x
- gtk_table_attach_defaults(GTK_TABLE(table), button8, 1, 2, 1, 2);
, q- v, f& W0 g; A- [5 K U, l - gtk_table_attach_defaults(GTK_TABLE(table), button9, 2, 3, 1, 2);, j7 E) e0 M" G7 `& i
% z- A2 m# T; m# J- gtk_table_attach_defaults(GTK_TABLE(table), button_add, 1, 2, 4, 5);
' l! R4 t5 ?& S; Q4 y, L - gtk_table_attach_defaults(GTK_TABLE(table), button_minus, 2, 3, 4, 5);( O) I% a$ ^3 ]
- gtk_table_attach_defaults(GTK_TABLE(table), button_mul , 3, 4, 2, 3);
7 r+ g8 x& n7 o0 d1 n* E - gtk_table_attach_defaults(GTK_TABLE(table), button_div, 3, 4, 3, 4);5 A- r2 _; }* I0 L
- gtk_table_attach_defaults(GTK_TABLE(table), button_equal, 3, 4, 4, 5);
1 [8 S" X' I( A% |4 x# ] - gtk_table_attach_defaults(GTK_TABLE(table), button_delete, 3, 4, 1, 2);6 m! x0 _$ F6 h) f! t/ R, l) ]$ n
% q0 R$ [2 l V- w- //注册信号函数,calc()
' ]/ S$ @7 G6 _3 L - g_signal_connect(button0, "pressed", G_CALLBACK(calc), entry);
/ m, ]% A& E: a- q, ?% } - g_signal_connect(button1, "pressed", G_CALLBACK(calc), entry);" [3 z' Y7 F' R5 y# v1 [/ U0 T' D
- g_signal_connect(button2, "pressed", G_CALLBACK(calc), entry);: l0 m9 b1 D, U
- g_signal_connect(button3, "pressed", G_CALLBACK(calc), entry);7 G3 U" q" G# S# V4 L
- g_signal_connect(button4, "pressed", G_CALLBACK(calc), entry);# o; s- p$ L1 u2 k
- g_signal_connect(button5, "pressed", G_CALLBACK(calc), entry);# V3 F9 b9 C/ u: E% L8 M2 D
- g_signal_connect(button6, "pressed", G_CALLBACK(calc), entry);4 ]2 A F. r6 G6 n5 A
- g_signal_connect(button7, "pressed", G_CALLBACK(calc), entry);9 w6 ]) h$ I0 p$ T
- g_signal_connect(button8, "pressed", G_CALLBACK(calc), entry);& {6 }( o( Y) c; {
- g_signal_connect(button9, "pressed", G_CALLBACK(calc), entry);
0 `7 _/ [2 b; p, d; K% C
. B5 L( G8 k' P, B6 ~0 i- g_signal_connect(button_add, "pressed", G_CALLBACK(calc), entry);
- M% W2 I- F- c, o3 D5 n# Y - g_signal_connect(button_mul, "pressed", G_CALLBACK(calc), entry);, y& ]5 ]! b6 W6 G6 m
- g_signal_connect(button_div, "pressed", G_CALLBACK(calc), entry);/ @4 D) u, Q0 o! z
- g_signal_connect(button_minus, "pressed", G_CALLBACK(calc), entry);
9 a2 }( u- f3 P' m - g_signal_connect(button_equal, "pressed", G_CALLBACK(calc), entry);: P G4 {% N9 {# C4 C+ F9 s) S5 _
- g_signal_connect(button_delete, "pressed", G_CALLBACK(calc), entry);3 K& }1 L1 X5 T' p: t
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' u: t" \/ S; g" x( A- gtk_widget_show_all(window);2 f1 l4 m) U6 W3 s# x: B& E$ U8 Q5 x
0 U( F+ X; ~% S' `* h- //主事件循环
; N# T0 n7 g% u6 e3 l - gtk_main();
9 @; d! F' d8 i6 J$ ~ - 6 K1 e$ C9 l4 x- [7 U/ `' ?/ [
- return 0;
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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。 |