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Topic: The 0.1uF capacitors when using FTDI programmer (Read 3 times) previous topic - next topic

Vincent19


retrolefty


Great ! How about CTS? What's that ?


Not required in this application and can be left disconnected.

Lefty

Vincent19


retrolefty

#18
Feb 02, 2013, 03:11 am Last Edit: Feb 02, 2013, 03:14 am by retrolefty Reason: 1
If the PC com link was set-up with the 'hardware handshacking' enabled, the CTS (clear to send) would be how the device would tell the PC it was ready to receive data if any is waiting to be sent. The comm port as used by arduino (and most all PC serial applications) use the 'no handshake' option choice to run the link at. There is also a 'software handshake' option where the two sides of a comm link send the ascii Xon and Xoff control characters to tell the other side to stop or start sending data. That is also not used in most PC applications. But both options are available for interfacing with such thing a older modems and other data communication devices.

Lefty


john1993


Great ! How about CTS? What's that ?


cts, dsr, ri, etc are inputs to the pc and therefor can never be used as arduino control bits.

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