libftdi Archives

Subject: Re: Aw: Re: FT232H:Bitbang, Access second port

From: Uwe Bonnes <bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
To: "Robert Schilling" <Fun_Extra_300@xxxxxxx>
Cc: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Date: Wed, 10 Apr 2013 13:18:00 +0200
>>>>> "Robert" == Robert Schilling <Fun_Extra_300@xxxxxxx> writes:

    Robert> Sorry :/ It seems GMX has changed its default mailformat to HTML
    Robert> :( Here is my question in plain:

    Robert> I'm using a U232HM module in bitbang mode and libftdi using the
    Robert> python api.
 
    Robert> class FtdiSwitch: def __init__(self): self.__ftdic = ftdi.new()
    Robert> if self.__ftdic == 0: raise Exception("Error creating USB
    Robert> device", self.name()) ret = ftdi.usb_open(self.__ftdic, 0x0403,
    Robert> 0x6014) if ret < 0: raise Exception("Error opening USB device",
    Robert> self.name()) if ftdi.set_bitmode(self.__ftdic, 0xFF,
    Robert> ftdi.BITMODE_BITBANG) < 0: raise Exception("Error switching to
    Robert> bitbang mode", self.name()) def set_port(self, value):
    Robert> ftdi.write_data(self.__ftdic, chr(value), 1)
 
    Robert> This code snippet accesses the first port of the U232HM
    Robert> module. Since this module has 2 ports, I also would to access
    Robert> the second port.

Why do you think the module has two port? The datasheet tells:

FT232H Single Channel H
Speed USB to Multipurpos
      UART/FIFO IC

-- 
Uwe Bonnes                bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

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