Updater: Write functional ram code loader

Updater RAM Code
----------------
* Ack running watchdog every 250 ms
* Blink green LED every 250 ms

Firmware
--------
* Add RAM code loader
* Reorganize initialization
* Add update command to shell

stm-firmware/shell.c

@@ -676,6 +676,22 @@ shellmatta_retCode_t shell_cmd_reset_cal(const shellmatta_handle_t handle, const
 	return SHELLMATTA_OK;
 }
 
+shellmatta_retCode_t shell_cmd_update(const shellmatta_handle_t handle, const char *arguments, uint32_t length)
+{
+	(void)handle;
+	(void)arguments;
+	(void)length;
+	struct safety_memory_boot_status status;
+
+	safety_memory_get_boot_status(&status);
+	status.reboot_to_bootloader = 0xFFFFFFFFUL;
+	safety_memory_set_boot_status(&status);
+
+	NVIC_SystemReset();
+
+	return SHELLMATTA_OK;
+}
+
 //typedef struct shellmatta_cmd
 //{
 //    char                    *cmd;       /**< command name                           */
@@ -685,7 +701,7 @@ shellmatta_retCode_t shell_cmd_reset_cal(const shellmatta_handle_t handle, const
 //    shellmatta_cmdFct_t     cmdFct;     /**< pointer to the cmd callack function    */
 //    struct shellmatta_cmd   *next;      /**< pointer to next command or NULL        */
 //} shellmatta_cmd_t;
-static shellmatta_cmd_t cmd[19] = {
+static shellmatta_cmd_t cmd[20] = {
 	{
 		.cmd = "version",
 		.cmdAlias = "ver",
@@ -836,7 +852,16 @@ static shellmatta_cmd_t cmd[19] = {
 		.helpText = "Reset Calibration",
 		.usageText = "",
 		.cmdFct = shell_cmd_reset_cal,
+		.next = &cmd[19],
+	},
+	{
+		.cmd = "update",
+		.cmdAlias = NULL,
+		.helpText = "Update Firmware",
+		.usageText = "",
+		.cmdFct = shell_cmd_update,
 		.next = NULL,
+
 	}
 };