diff --git a/app_protocols/transmit_disfection_protocol b/app_protocols/transmit_disfection_protocol
index 8cccc4a..cc6b013 160000
--- a/app_protocols/transmit_disfection_protocol
+++ b/app_protocols/transmit_disfection_protocol
@@ -1 +1 @@
-Subproject commit 8cccc4a9b3a09f928ac0f4041bbc6107d919dfcc
+Subproject commit cc6b0133119f5d7a8538a7e644234e3bb0e7ce57
diff --git a/usrc/protocol_processer_impl/public_cmd_processer.cpp b/usrc/protocol_processer_impl/public_cmd_processer.cpp
index 78bf973..17eb5b7 100644
--- a/usrc/protocol_processer_impl/public_cmd_processer.cpp
+++ b/usrc/protocol_processer_impl/public_cmd_processer.cpp
@@ -27,6 +27,7 @@ void PublicCmdProcesser::fn_read_sysinfo(ProcessContext* cxt) {
   static ack_sysinfo_t ack;
   ack.free_heap_size  = SysMgr::ins()->osGetMinimumEverFreeHeapSize();
   ack.total_heap_size = SysMgr::ins()->osGetTotalHeapSize();
+  ack.free_heap_size  = SysMgr::ins()->osGetFreeSysHeapSize();
   ack.taskNum         = SysMgr::ins()->getTaskNum();
   ack.sysHasRun       = SysMgr::ins()->osGetSysRunTime() / 1000;
   zcanbus_send_ack(cxt->packet, (uint8_t*)&ack, sizeof(ack));
diff --git a/zsdk b/zsdk
index b005cfe..333f0d4 160000
--- a/zsdk
+++ b/zsdk
@@ -1 +1 @@
-Subproject commit b005cfe73378067a490bea27eb7b4d4503da7af8
+Subproject commit 333f0d4eb7cd32934156ba989d63b2cc079ed098