nesC编程
MyAppM.nc:129: warning: `ReadData.read' called asynchronously from `Light.dataReady'
/opt/MoteWorks/tos/radio/rf230/RF230RadioRawM.nc:601: warning: `Send.sendDone' called asynchronously from `completeSend'

我的程序出现这个警告是什么意思，忘各位大神指点。
[解决办法]
调用Read　command 就可以得到readdone,是不是调用过程没写好．