From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karsten Malcher Subject: Re: USB to Serial converter code pl2303 Date: Wed, 19 Feb 2014 18:21:25 +0100 Message-ID: <5304E815.8010901@dct.mine.nu> References: <1392688665.7323.32.camel@mange> <20140218090946.GA1954@localhost> <1392828260.3113.24.camel@mange> <20140219170039.GG24335@localhost> <5304E472.2000203@dct.mine.nu> <20140219171406.GH24335@localhost> Reply-To: debian-QdlBTFngBEMsCylrc8G9yg@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20140219171406.GH24335@localhost> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Johan Hovold , =?ISO-8859-1?Q?Frank_Sch=E4fer?= Cc: Magnus , linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-serial@vger.kernel.org Am 19.02.2014 18:14, schrieb Johan Hovold: > On Wed, Feb 19, 2014 at 06:05:54PM +0100, Karsten Malcher wrote: >> Am 19.02.2014 18:00, schrieb Johan Hovold: >>> I need an adapter that can handle 2400 Baud to talk to the >>> ft639/ede639 servo controller chip or possibly a pl2303 driver >>> that is improved. >>> The pl2303-driver can handle 2400 baud, but not sure exactly what b= aud >>> rates are available for a cloned/pirated pl2303 chip (if that is wh= at >>> you've got). 115200 baud should be supported, though. >> We have tested different baud rates with the PL2303HX china clones. >> All are working including non standard baud rates. > Ok, good, so 2400 baud should work. Yes - this should be no problem with every usb converter. I have different one and all of them are usable now. > >> But the non standard baud rates are only available with the modified >> driver from Frank Sch=E4fer. > What driver is that? The latest clone-related patch from Frank that I= 've > seen stated: > > "According to Prolific, several (unauthorized) cheap and less > functional clones of the PL2303HX chip are in circulation. [1] > I've had the chance to test such a cloned device and it turned > out that it doesn't support any baud rates above 115200 baud > (original: 6 Mbaud) It also doesn't support the divisior based > baud rate encoding method, so no continuous baud rate adjustment > is possible." That's a good question. He send me a special debug version that gives all registers of the PL23= 03HX after the plugin. I think it is better when Frank directly suffer us with his latest vers= ion. Cheers Karsten > > Thanks, > Johan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html