diff --git a/protocol.c b/protocol.c
index fa85ba4..346882f 100644
--- a/protocol.c
+++ b/protocol.c
@@ -1639,8 +1639,8 @@ static uint8_t HandlePumpStepControl(uint8_t *Buff, uint8_t len) {
             continue;
         }
         uint8_t rst = systemStatus.rst;
-        uint8_t index = Buff[index*4];
         int32_t step = (Buff[index*4+1]<<24) | (Buff[index*4+2]<<16) | (Buff[index*4+3]<<8) | Buff[index*4+4];
+        log_d("泵步进设置: %d[%d], %d",index, dp.pump[index].id, step);
         SetPumpStepTarget(index, step);
         StartPumpRelativeMove(index);
         if(rst != systemStatus.rst) {