Propeller Quickstart board question

dougm

I'm looking at the propeller quickstart board and based on the picture and the BOM it has an FT232RL on it. Then I look at the schematic here:

http://www.parallax.com/sites/default/files/downloads/40000-Propeller-QuickStart-Schematic-Layout-RevB.pdf

and on page 3 it has the diagram for an unidentified USB-Serial converter chip, but the pinouts are not the same as the pinouts on the FT232RL.

http://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT232R.pdf (page 7 SSOP)

signal schematic FT232
USBDM 12 16
USBDP 11 15
CBUS0 18 23
DTR 1 2
TXD 20 1
RXD 4 5
etc...

Do you have any insights? I would like to build a project based on the propeller but I need a proven USB solution before I can start.

Thanks,

DougM

Hal Albach

I think you are looking at a Rev A board and rev B schematics. The USB chip on the Rev B has 20 pins, on Rev A it has 28 pins.
Go to the Quickstart product page and under Downloads & Documentation select 4th item down, Quickstart schematics and then select the 2nd item, rev A schematics.

Hal Albach

The rev B board uses the FTDI FT231XS chip.

dougm

Thank you Hal, that answers my question :-)

DougM