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Trouble in MQX IO driver

Question asked by Li Zhengping on Sep 2, 2011
Latest reply on Oct 17, 2011 by Bryan Hunt

I read MQX io driver such as uart driver, and find one question.

it seems all driver don't count synchronization between more than one task .

for example, if task A is calling the uart driver's write routine to send some data, but when task A doesn't finish send all data, it is been preempted by task B .

suppose task B also call the driver's write routine, also send some data.  then confict occurs. the receiver will get a part of data which is send by task A, and another part of data sent by task B


I am not sure my question is a really trouble