"McLion" <@> wrote in message news:44d9aabe$1_2@news.tiscalinet.ch...> Unfortunately, for this project, the Controller is 'given'. > And this Syntek seems to be sort of 'dumb'. It has a Timer2, but it can > not be used as baudrate source for the UART. > > Thanks anyway. > Have a nice day! > FranzWell, if you can't change the 13 MHz to give you a faster "standard PC baudrate" have you considered running a non-standard baudrate at the PC end? If you can't do that either, how about putting a baud rate converter/buffer in between (many two UART development boards could be belted in to shape to do this in less than a day). If both of these are too much trouble, too, you may not need a higher baud rate as much as you think you do. Cheers, Alf
8051 Baudrate
Started by ●August 8, 2006
Reply by ●August 9, 20062006-08-09
Reply by ●August 9, 20062006-08-09
i worked on 8051 time back.but i think it can support greater baud rates.try with changing configuration of smod in pcon register. however why dont u try with newer versions of 8051 variant.
Reply by ●August 10, 20062006-08-10
"abhay" <abhaym244@gmail.com> schrieb im Newsbeitrag news:1155126124.612700.246930@m79g2000cwm.googlegroups.com...>i worked on 8051 time back.but i think it can support greater baud > rates.try with changing configuration of smod in pcon register. > however why dont u try with newer versions of 8051 variant.I know it can do higher baudrates, that's not the issue. And like I already wrote before: The Controller type and it clock frequency is 'given' and not changeable. Therefore, i will use 9600. Best regards, Franz
Reply by ●August 10, 20062006-08-10
McLion <@> wrote:> And like I already wrote before: The Controller type and it clock > frequency is 'given' and not changeable.And right there is your problem. You let things be "given" to you by people who don't know what they're doing. -- Hans-Bernhard Broeker (broeker@physik.rwth-aachen.de) Even if all the snow were burnt, ashes would remain.
Reply by ●August 11, 20062006-08-11
In article <4k1fj0Fa1si4U2@news.dfncis.de>, Hans-Bernhard Broeker <broeker@physik.rwth-aachen.de> writes>McLion <@> wrote: > >> And like I already wrote before: The Controller type and it clock >> frequency is 'given' and not changeable. > >And right there is your problem. You let things be "given" to you by >people who don't know what they're doing. >That is a little unfair. You don't know why the clock frequency is fixed. The Keil web site has a very good calculator for doing baud rates. It is useful because it shows you all the possible ones on a wide range to clock frequencies -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Reply by ●August 11, 20062006-08-11
"Chris Hills" <chris@phaedsys.org> schrieb im Newsbeitrag news:LWjQGeAQ3D3EFAzl@phaedsys.demon.co.uk...> In article <4k1fj0Fa1si4U2@news.dfncis.de>, Hans-Bernhard Broeker > <broeker@physik.rwth-aachen.de> writes >>McLion <@> wrote: >> >>> And like I already wrote before: The Controller type and it clock >>> frequency is 'given' and not changeable. >> >>And right there is your problem. You let things be "given" to you by >>people who don't know what they're doing. >> > > That is a little unfair. You don't know why the clock frequency is > fixed. >Thanks ... you're right. Contrary to Hans-Bernhard I work 'in the real-world' where the customer with it's given hardware tells you what he wants. There are two choices: love it (and adapt to it) or leave it. However, always keep in mind that the customer is the one who pays the salary check at the end of every month. Franz
Reply by ●November 3, 20062006-11-03
hai it's possible to generate higher baudrate using 8051. the only thing you have to check is that whether the 8051 will work in a higher frequency.i heard that silab is manufacturing 8051 which will work at the speed of 100 mhz.using this speed you can generate higher baudrates.the equation is the same.when we are using the 11.0592mhz crystal(the commenly used)we limit the baud rate up to 9600. ml>Hi > >Is it just me or is the Baudrate setting of a 8051 core really solimited?>I have a 8051 compatible controller with 13MHz Osc (unfortunately, thisis a>given situation and not chnageable). Is it true that 9600 is the fastest>possible Baudrate that somehow fits to the standard baudrates of a PC? Iwas>looking for something a bit faster, i.e. 57600. >Can somebody confirm this or guide me toward the correct setting if I am>wrong? > >Thanks and best regards, >Franz > > >
Reply by ●November 3, 20062006-11-03
> >>Hi >> >>Is it just me or is the Baudrate setting of a 8051 core really so > limited? >>I have a 8051 compatible controller with 13MHz Osc (unfortunately, this > is a >>given situation and not chnageable). Is it true that 9600 is the fastest > >>possible Baudrate that somehow fits to the standard baudrates of a PC? I > was >>looking for something a bit faster, i.e. 57600. >>Can somebody confirm this or guide me toward the correct setting if I am > >>wrong? >> >>Thanks and best regards, >>Franz >>>>>>re-bottom posted for your convenience"microlab" <sun2ish@yahoo.com> wrote in message news:juCdnZDfGPC3PdbYnZ2dnUVZ_rudnZ2d@giganews.com...> hai > it's possible to generate higher baudrate using 8051. > the only thing you have to check is that whether the 8051 will work in a > higher frequency.i heard that silab is manufacturing 8051 which will work > at the speed of 100 mhz.using this speed you can generate higher > baudrates.the equation is the same.when we are using the 11.0592mhz > crystal(the commenly used)we limit the baud rate up to 9600. > > ml >What? you can get 100 Baud to 115KBaud wiuth any 8051. Just pick the right xtal.. In fact.. I think 11.0592 will hit them all.. But there is not a 9600 limit nor do you need a 100Mhz MPU to do it.
Reply by ●November 4, 20062006-11-04
hai it doesn't meant that you must go to the 100mhz crystal it's just a possibility we were discussing i meant just to take care of the the processor about the maximum frequency on which it will run thatt's it.not reqd to select the 100 mhz crystal thanking you ml>> >>>Hi >>> >>>Is it just me or is the Baudrate setting of a 8051 core really so >> limited? >>>I have a 8051 compatible controller with 13MHz Osc (unfortunately,this>> is a >>>given situation and not chnageable). Is it true that 9600 is thefastest>> >>>possible Baudrate that somehow fits to the standard baudrates of a PC?I>> was >>>looking for something a bit faster, i.e. 57600. >>>Can somebody confirm this or guide me toward the correct setting if Iam>> >>>wrong? >>> >>>Thanks and best regards, >>>Franz >>> > >>>>>re-bottom posted for your convenience > > >"microlab" <sun2ish@yahoo.com> wrote in message >news:juCdnZDfGPC3PdbYnZ2dnUVZ_rudnZ2d@giganews.com... >> hai >> it's possible to generate higher baudrate using 8051. >> the only thing you have to check is that whether the 8051 will work ina>> higher frequency.i heard that silab is manufacturing 8051 which willwork>> at the speed of 100 mhz.using this speed you can generate higher >> baudrates.the equation is the same.when we are using the 11.0592mhz >> crystal(the commenly used)we limit the baud rate up to 9600. >> >> ml >> > > > >What? you can get 100 Baud to 115KBaud wiuth any 8051. Just pick theright>xtal.. In fact.. I think 11.0592 will hit them all.. But there is not a>9600 limit nor do you need a 100Mhz MPU to do it. > > > > > >
Reply by ●November 4, 20062006-11-04
> > >>> >>>>Hi >>>> >>>>Is it just me or is the Baudrate setting of a 8051 core really so >>> limited? >>>>I have a 8051 compatible controller with 13MHz Osc (unfortunately, > this >>> is a >>>>given situation and not chnageable). Is it true that 9600 is the > fastest >>> >>>>possible Baudrate that somehow fits to the standard baudrates of a PC? > I >>> was >>>>looking for something a bit faster, i.e. 57600. >>>>Can somebody confirm this or guide me toward the correct setting if I > am >>> >>>>wrong? >>>> >>>>Thanks and best regards, >>>>Franz >>>> >> >>>>>>re-bottom posted for your convenience >> >> >>"microlab" <sun2ish@yahoo.com> wrote in message >>news:juCdnZDfGPC3PdbYnZ2dnUVZ_rudnZ2d@giganews.com... >>> hai >>> it's possible to generate higher baudrate using 8051. >>> the only thing you have to check is that whether the 8051 will work in > a >>> higher frequency.i heard that silab is manufacturing 8051 which will > work >>> at the speed of 100 mhz.using this speed you can generate higher >>> baudrates.the equation is the same.when we are using the 11.0592mhz >>> crystal(the commenly used)we limit the baud rate up to 9600. >>> >>> ml >>> >> >> >> >>What? you can get 100 Baud to 115KBaud wiuth any 8051. Just pick the > right >>xtal.. In fact.. I think 11.0592 will hit them all.. But there is not a > >>9600 limit nor do you need a 100Mhz MPU to do it. >> >>>>>>>>re-bottom posted for your convenience"microlab" <sun2ish@yahoo.com> wrote in message news:xsGdnQLnnYvbgdHYnZ2dnUVZ_oednZ2d@giganews.com...> hai > it doesn't meant that you must go to the 100mhz crystal > it's just a possibility we were discussing > i meant just to take care of the the processor about the maximum frequency > on which it will run thatt's it.not reqd to select the 100 mhz crystal > > thanking you > > ml\ that makes less sense than your first statement..>> >> >> >> > >