iot.md

STM32MP1_sdk

change Docker IPs pool

sudo nano /etc/docker/daemon.json

{
  "default-address-pools":
  [
    {"base":"10.10.0.0/16","size":24}
  ]
}

then do

sudo systemctl restart docker.service

Pull the Docker

docker pull jouetrom/stm32mp1_sdk

Cross compile example

• make new folder ex: hello_world mkdir hello_world && cd hello_world

• create a file gtk_hello_world.c sudo nano gtk_hello_world.c

• write this exemple:

#include <gtk/gtk.h>

static void
print_hello (GtkWidget *widget,
             gpointer   data)
{
  g_print ("Hello World\n");
}

static void
activate (GtkApplication *app,
          gpointer        user_data)
{
  GtkWidget *window;
  GtkWidget *button;
  GtkWidget *button_box;

  window = gtk_application_window_new (app);
  gtk_window_set_title (GTK_WINDOW (window), "Window");
  gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);

  button_box = gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL);
  gtk_container_add (GTK_CONTAINER (window), button_box);

  button = gtk_button_new_with_label ("Hello World");
  g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
  g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_widget_destroy), window);
  gtk_container_add (GTK_CONTAINER (button_box), button);

  gtk_widget_show_all (window);
}

int
main (int    argc,
      char **argv)
{
  GtkApplication *app;
  int status;

  app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
  g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
  status = g_application_run (G_APPLICATION (app), argc, argv);
  g_object_unref (app);

  return status;
}

• create the Makefile sudo nano Makefile

• write this exemple:

PROG = gtk_hello_world
SRCS = gtk_hello_world.c

CLEANFILES = $(PROG)

# Add / change option in CFLAGS and LDFLAGS
CFLAGS += -Wall $(shell pkg-config --cflags gtk+-3.0)
LDFLAGS += $(shell pkg-config --libs gtk+-3.0)

all: $(PROG)

$(PROG): $(SRCS)
	$(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS)

clean:
	rm -f $(CLEANFILES) $(patsubst %.c,%.o, $(SRCS))

• run docker with these args :

sudo docker run -it --rm -v "$(pwd)":/tmp jouetrom/stm32mp1_sdk:latest

Normaly now you have the file compiled for the card

ls gtk_hello_world

you can send the compiled file via scp:

scp gtk_hello_world root@172.17.1.62:/home/root/