diff --git a/chip/basic/basic_h/marco.h b/chip/basic/basic_h/marco.h
index 5da9d0f..9084402 100644
--- a/chip/basic/basic_h/marco.h
+++ b/chip/basic/basic_h/marco.h
@@ -1,6 +1,6 @@
 #pragma once
 #ifndef ZARRAY_SIZE
-#define ZARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+#define ZARRAY_SIZE(x) ((int32_t)(sizeof(x) / sizeof(x[0])))
 #endif
 #define ZMAX(a, b) ((a) > (b) ? (a) : (b))
 #define ZMIN(a, b) ((a) < (b) ? (a) : (b))
diff --git a/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp b/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
index 3de2073..552e6d6 100644
--- a/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
+++ b/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
@@ -258,7 +258,7 @@ int32_t StepMotorCtrlModule::rotate(int32_t speed, int32_t lastforms, action_cb_
     bool    reachtime   = false;
 
     while (!m_thread.getExitFlag()) {
-      if (zos_haspassedms(startticket) > lastforms && lastforms != 0) {
+      if ((int32_t)zos_haspassedms(startticket) > lastforms && lastforms != 0) {
         reachtime = true;
         m_stepM1->stop();
         break;