defunct: playing around with bootloaders

software/apps/snippets/bootloader/src/main.c

@@ -0,0 +1,42 @@
+#include <zephyr/kernel.h>
+#include <app_version.h>
+#include <zephyr/shell/shell.h>
+#include <zephyr/sys/reboot.h>
+#include <zephyr/dfu/mcuboot.h>
+#include <zephyr/retention/bootmode.h>
+#include <stdlib.h>
+
+/* Shell command handler for "reset" */
+static int cmd_reset(const struct shell *sh, size_t argc, char **argv)
+{
+    shell_print(sh, "Rebooting system...");
+    k_sleep(K_MSEC(100)); // Optional delay for user to see the message
+    sys_reboot(SYS_REBOOT_WARM);
+    return 0;
+}
+
+static int cmd_download(const struct shell *sh, size_t argc, char **argv)
+{
+    int rc;
+    
+    /* Set boot mode to serial recovery */
+    rc = bootmode_set(BOOT_MODE_TYPE_BOOTLOADER);
+    if (rc < 0) {
+        shell_error(sh, "Failed to set boot mode: %d", rc);
+        return rc;
+    }
+    
+    shell_print(sh, "Boot mode set to recovery. Rebooting to bootloader...");
+    k_sleep(K_MSEC(100));
+    sys_reboot(SYS_REBOOT_WARM);
+    return 0;
+}
+
+/* Register the shell command */
+SHELL_CMD_REGISTER(reset, NULL, "Reboot the system", cmd_reset);
+SHELL_CMD_REGISTER(download, NULL, "Download firmware", cmd_download);
+
+int main(void){
+    printk("Bootloader test version %s\n", APP_VERSION_EXTENDED_STRING);
+    return 0;
+}