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8051 architecture

Started by Unknown July 11, 2006
Why 8051 need 2 clock cycle for 1 system state?

<eerobert@gmail.com> wrote in message
news:1152598467.894100.285310@m79g2000cwm.googlegroups.com...
> Why 8051 need 2 clock cycle for 1 system state?
Because it is designed that way. Meindert
In article <12b6kuc9ikdqa6d@corp.supernews.com>, Meindert Sprang
<ms@NOJUNKcustomORSPAMware.nl> writes
><eerobert@gmail.com> wrote in message >news:1152598467.894100.285310@m79g2000cwm.googlegroups.com... >> Why 8051 need 2 clock cycle for 1 system state? > >Because it is designed that way. > >Meindert >
Is it just me (and Grant Edwards) or are the questions getting worse and pointless? There is another post asking how to do something that is clearly explained in the manuals... The manuals are electronic and part of the compiler IDE package. Even the eval and pirated versions have them! SO either these people cant read the manuals or can't be bothered. In either case I think their Internet access should be stopped. If they are not that good in English use a language they are good at. You don't have to use English and I am sure that some one else could translate for them. -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
> Is it just me (and Grant Edwards) or are the questions getting worse and > pointless?
This is one of my favourites: http://groups.google.com/group/comp.sys.arm/browse_thread/thread/4701d6dcd304883e/ba36ebb0b880cdf9?q=at91sam7s64&rnum=1#ba36ebb0b880cdf9 They then reposted to the AT91 Yahoo group with the same question. and my previous rant on the subject. http://groups.google.com/group/comp.arch.embedded/browse_thread/thread/78554604221e717f/38d80dcd2f0e9be5?q=%22in+my+day%22&rnum=2#38d80dcd2f0e9be5 Regards, Richard. http://www.FreeRTOS.org *Now for ARM Cortex-M3!*
Chris Hills wrote:
> > SO either these people cant read the manuals or can't be bothered. In > either case I think their Internet access should be stopped.
Oh, yes. And they should be arrested in Guantanamo... Why do you talk to those guys? The problem solves itself if you and Meindert Sprang (and others) just keep quiet.
In article <KJLsg.99926$wl.41861@text.news.blueyonder.co.uk>,
FreeRTOS.org Info <nospam@thanks.com> writes
>> Is it just me (and Grant Edwards) or are the questions getting worse and >> pointless? > >This is one of my favourites: >http://groups.google.com/group/comp.sys.arm/browse_thread/thread/4701d6dcd304883 >e/ba36ebb0b880cdf9?q=at91sam7s64&rnum=1#ba36ebb0b880cdf9 > >They then reposted to the AT91 Yahoo group with the same question. > >and my previous rant on the subject. >http://groups.google.com/group/comp.arch.embedded/browse_thread/thread/785546042 >21e717f/38d80dcd2f0e9be5?q=%22in+my+day%22&rnum=2#38d80dcd2f0e9be5 > >Regards, >Richard.
pls hlp wot is "http" ? sum one say it is for web browser. pls can u come to my house and load web browser for me? pls can u tell me how to use web browser? i need to know quick because I start as network administrator next week at local hospital. Regards, Richard. PS do you have to end all emails "regards richard"? or can I use something else? Ps where can I download a free version of Microsoft Linux for my PIC? -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
"Bodo Rzany" <rzany@ibrro.de> wrote in message
news:ktdco3-394.ln1@ibrro.de...
> Chris Hills wrote: > > > > SO either these people cant read the manuals or can't be bothered. In > > either case I think their Internet access should be stopped. > > Oh, yes. And they should be arrested in Guantanamo... > > Why do you talk to those guys? The problem solves itself if you > and Meindert Sprang (and others) just keep quiet.
Because it makes for a fun break after a few hours of embedded programming, problem solving and reading datasheets :-) Meindert
"Chris Hills" <chris@phaedsys.org> schreef in bericht
news:i93qMbBtP4sEFAcv@phaedsys.demon.co.uk...

> If they are not that good in English use a language they are good at. > You don't have to use English and I am sure that some one else could > translate for them.
In which case they might not be able to dig through the manual, but still have enough knowledge of the language to ask a simple question. But if that is so, they better learn English or find another job, for instance sorting bananas at the banana market. -- Thanks, Frank. (remove 'q' and '.invalid' when replying by email)
In article <ktdco3-394.ln1@ibrro.de>, Bodo Rzany <rzany@ibrro.de> writes
>Chris Hills wrote: >> >> SO either these people cant read the manuals or can't be bothered. In >> either case I think their Internet access should be stopped. > >Oh, yes. And they should be arrested in Guantanamo...
Oh yes the place they put people they have abducted from another country and hold without any charges flouting the Geneva Convention, UN conventions and US laws.
> >Why do you talk to those guys? The problem solves itself if you >and Meindert Sprang (and others) just keep quiet.
Idle amusement. It's lunch time here. -- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ \/\/\/\/\ Chris Hills Staffs England /\/\/\/\/ /\/\/ chris@phaedsys.org www.phaedsys.org \/\/\ \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
"Chris Hills" <chris@phaedsys.org> wrote in message 
news:i93qMbBtP4sEFAcv@phaedsys.demon.co.uk...
> In article <12b6kuc9ikdqa6d@corp.supernews.com>, Meindert Sprang > <ms@NOJUNKcustomORSPAMware.nl> writes >><eerobert@gmail.com> wrote in message >>news:1152598467.894100.285310@m79g2000cwm.googlegroups.com...
>>> Why 8051 need 2 clock cycle for 1 system state?
<snip>
> Is it just me (and Grant Edwards) or are the questions getting worse > and > pointless?
In this chap's defence then this is not too bad a question and the answer doesn't readily present itself from the datasheet. Perhaps he has come in from the PIC world where 4 clocks are used and is wondering how the 8051 does it in 2. However, I think it more likely that he wants to know why two clocks are required to do one instruction but this in itself is not too obvious if you only know the processor as a black box that runs code. Granted, he should have spent more time googling but using what search string if he doesn't know about fetch-decode-execute and doesn't have great English? I am also aware that after my mini-rant I still haven't given much help to the OP but I don't know a lot about the 8051 and besides, it was a pointless question ;-)