While validating that device serial0 was really a serial port

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You can see the letter A (01111101) transmitted using 8n1 in this logic analyzer trace: The first low is the start bit, then the eight dots show the ideal sampling positions for the receiver.In the early days the protocol was used at very slow speeds - 300 baud, i.e.roughly 300 bits per second, was considered fast enough.For a serial connection to work it is essential that the transmitter and the receiver are set to the same speed, data bits and parity.Serial interfaces most often fail because they are not working with the same settings.

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  1. When I click the edit selected row button, a custom edit form displays below the row displaying 30 different fields. Once I am done editing, I click the update button and SQL Data Source Updating event is kicked off where I need to set the values for the parameters of the SQL Data Source .