diff --git a/components/zcancmder/zcanreceiver_master.cpp b/components/zcancmder/zcanreceiver_master.cpp
index 8359992..5adb12b 100644
--- a/components/zcancmder/zcanreceiver_master.cpp
+++ b/components/zcancmder/zcanreceiver_master.cpp
@@ -18,7 +18,7 @@ using namespace zcr;
 ZCanCommnaderMaster::CFG *ZCanCommnaderMaster::createCFG() {
   CFG *cfg = new CFG();
   ZASSERT(cfg != NULL);
-  cfg->deviceId = 1;
+  cfg->deviceId = 0;
 #ifdef STM32F103xB
   cfg->canHandle = &hcan;
 #else