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VDK UART overrun error

Question asked by David_BAUR on Jun 5, 2013
Latest reply on Jun 5, 2013 by David_BAUR



i am using the BF537 evaluation Board and I have a problem with the vdk device drivers. I've programmed a UART module to communicate with an other card. The transmiting of data is no problem. The other card receives the string correctly. But if the other card transmits a string back the the event of the callback functions points to overrun error.


Also strange is that when the other card sends only a character the Blackfin doesn't create a callback, but when the other card sends two character "AB" the blackfin creates two callbacks with overrun error and the receive buffer is filled with the last character "B".



Thank you!