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Topic: FTDI Reset Pin (Read 726 times) previous topic - next topic

tek444

Does anyone know why the reset pin on the FTDI chip (USB to RS232) is either pulled to +5V directly or through a RC circuit on arduino board designs? The FTDI documentation does not say this is required but it seems to cause intermittent serial communications problems if I disconnect the pin and just let it float. The problems show up just after installing the drivers on a Windows XP machine and may or may not come back on subsequent installations of the same device (disconnect/reconnect USB cable to PC).

Coding Badly

#1
Mar 08, 2011, 04:36 pm Last Edit: Mar 08, 2011, 07:04 pm by Coding Badly Reason: 1
Are you referring to pin 19 (RESET#) or pin 2 (DTR#) on the FTDI chip?

tek444


Coding Badly

Quote
if I disconnect the pin and just let it float


Why?

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