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In the UART component of PSoC, when the Flow Control parameter is selected as Hardware, then a "cts_n" terminal appears on the input side of the component.
The cts_n input indicates that another device is ready to receive data. This input is an active-low input indicated by the _n, and indicates when the other device has room for more data to be transmitted to it.
Are you probing the CTS line on an oscilloscope? What device are you interfacing PSoC with?
I found a beta version of a program called MarkerPlot. It allows me to monitor and record data. I am trying to use a three wire connection. The example from Cypress uses 57600 baud.The cypress example is only using transmit? The plot software uses 57000 baud. I keep getting frame problems. Do I still need to change the wiring on the RS232 connector. I am using a PSoC 3 SDK with production silicon.