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Author Topic: FTDI Reset Pin  (Read 697 times)
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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).
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Are you referring to pin 19 (RESET#) or pin 2 (DTR#) on the FTDI chip?
« Last Edit: March 08, 2011, 01:04:18 pm by Coding Badly » Logged

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Pin 19 (RESET#)
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if I disconnect the pin and just let it float

Why?
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