From a2da34be16531404b4c4507ab71b0518a51d60c5 Mon Sep 17 00:00:00 2001 From: Lorenz Meier Date: Fri, 18 Jul 2014 20:53:01 +0200 Subject: Fixes #1207 --- src/modules/mavlink/mavlink_main.cpp | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) (limited to 'src/modules/mavlink/mavlink_main.cpp') diff --git a/src/modules/mavlink/mavlink_main.cpp b/src/modules/mavlink/mavlink_main.cpp index 76b5459a3..e235ff0f9 100644 --- a/src/modules/mavlink/mavlink_main.cpp +++ b/src/modules/mavlink/mavlink_main.cpp @@ -525,22 +525,39 @@ void Mavlink::mavlink_update_system(void) _param_component_id = param_find("MAV_COMP_ID"); _param_system_type = param_find("MAV_TYPE"); _param_use_hil_gps = param_find("MAV_USEHILGPS"); - _param_initialized = true; } /* update system and component id */ int32_t system_id; param_get(_param_system_id, &system_id); - if (system_id > 0 && system_id < 255) { - mavlink_system.sysid = system_id; - } - int32_t component_id; param_get(_param_component_id, &component_id); - if (component_id > 0 && component_id < 255) { - mavlink_system.compid = component_id; + + /* only allow system ID and component ID updates + * after reboot - not during operation */ + if (!_param_initialized) { + if (system_id > 0 && system_id < 255) { + mavlink_system.sysid = system_id; + } + + if (component_id > 0 && component_id < 255) { + mavlink_system.compid = component_id; + } + + _param_initialized = true; + } + + /* warn users that they need to reboot to take this + * into effect + */ + if (system_id != mavlink_system.sysid) { + send_statustext_critical("Save params and reboot to change SYSID"); + } + + if (component_id != mavlink_system.compid) { + send_statustext_critical("Save params and reboot to change COMPID"); } int32_t system_type; -- cgit v1.2.3