In article <%4RJc.27438$TB3.1126381@news20.bellglobal.com>, Sean Chen
<xo_chen@sympatico.ca> writes
>For learning 8051 or generic coding on it, I do think the USB RAM based 8051
>development board is a good solution. There are following advantages:
>1. No flash/EPROM burner needed
This is the same for virtually any Flash based 8051. All you usually
need is a serial lead and the free SW from the silicon vendor.
The advantage is that this is usually built in to the boot lioader onthe
chip.
USB of course requires a lot more (complex) software. Also if you are
downloading/debugging via the USB can you use it as part of the design?
>2. The code downloading is very, very fast
It is not much different with ISP or Serial, With the amounts in
question it is hardly worth mentioning.
>3. Normally, no extra power supply is needed
YEs.. but the supply is limited and not 5V (USB can be 4.3)
>4. Normally, on-chip resources are more than a standard 8051/8052
That is the same for about 580 out of the 600 odd 51 types out there...
I think that USB is a very large overhead compared to isp for
programming the flash. Also the ISP systems are built in to the boot rom
and don't take up space.
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/\
/\/\/ chris@phaedsys.org www.phaedsys.org \/\/
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Reply by Chris Hills●July 31, 20042004-07-31
In article <mnYIc.247327$Gx4.184616@bgtnsc04-news.ops.worldnet.att.net>,
Gregg C Levine <drwho8@att.net> writes
>In article <BrFCp$BYl+zAFAQ1@phaedsys.demon.co.uk>, chris@phaedsys.org
>says...
>>>The cheapest way to start with a complete 8051 development kit is to
>>>use a keyspan (cypress ezusb based 8051). SDCC (GNU) compiler etc are
>>>available. See Hacking the Keyspan USB Serial Adaptor -
>>>http://people.omnigroup.com/wiml/soft/pic/keyspan.html
>>
>>I doubt this is the cheapest besides it uses the SDCC compiler. Not a
>>good move.
>
>Hello from Gregg C Levine
>Okay, why? I freely admit that particular compile is peculiar in its workings,
>but
>that's all I know.
The SDCC is not really stable yet. In fact one person on this NG could
only get to compile code without crashing if he turned off the
optimisation.
It is probably at best a decade behind modern compiler technology (I
have been informed by some commercial compiler writers)
Look at the size of the produced binary (both code and data space) the
speed of execution. Do the libraries and header files conform to known
standards? especially the maths libraries?
Just because it compiles how do you *prove* that it has produced the
correct assembly?
What other tools does it work with (ie what standards does it use?) EG
does the 8051 version produce OMF and Extended OMF?
Like all "free" compilers where you get the source *YOU* start to become
liable for the errors the tools have.
In a commercial compiler where you only get the binary and the compiler
has a history you can shift the liability on the compiler vendor or at
least not be saddled with is yourself. Ie Due Diligence etc.
With a compiler where you have the source YOU get to be responsible for
ensuring that it is correct and error free.
For example 99.9% of commercial compiler will have been run through the
industry standard test suites. Has the SDCC?
Free tools mean you don't pay an up front cost to the supplier. Other
costs could be far higher than a compiler you pay for.
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/\
/\/\/ chris@phaedsys.org www.phaedsys.org \/\/
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Reply by Sean Chen●July 16, 20042004-07-16
For learning 8051 or generic coding on it, I do think the USB RAM based 8051
development board is a good solution. There are following advantages:
1. No flash/EPROM burner needed
2. The code downloading is very, very fast
3. Normally, no extra power supply is needed
4. Normally, on-chip resources are more than a standard 8051/8052
There are quite a few boards available. Take a look this board at:
www.geocities.com/xo_chen. The board is based-on TI TUSB3410 (8052 core).
"Gregg C Levine" <drwho8@att.net> wrote in message
news:mnYIc.247327$Gx4.184616@bgtnsc04-news.ops.worldnet.att.net...
> In article <BrFCp$BYl+zAFAQ1@phaedsys.demon.co.uk>, chris@phaedsys.org
> says...
> >
> >In article <6f784de2.0406151631.46b693fb@posting.google.com>, Steve
> ><stevecalfee@hotmail.com> writes
> >>ffled@yahoo.com (Stu Cazzo) wrote in message
> news:<61a8d61e.0406141913.48a6adb5@
> >>posting.google.com>...
> >>> Hello,
> >>> I want to get started on an 8051 project. I already
> >>> know C. What I am looking for is an 8051 eval board
> >>> that comes with a C compiler, flash burner, code
> >>> debugger, etc...
> >>> In other words, I want to develop some basic, generic
> >>> 8051 code in C, compile, link, download it into eval
> >>> board and then debug/run it. I do not need any of the
> >>> new flavors of the 8051. Any ideas where I can pick
> >>> one up and which one I should buy?
> >>>
> >>> Thanks,
> >>>
> >>> Stu.
> >>
> >>The cheapest way to start with a complete 8051 development kit is to
> >>use a keyspan (cypress ezusb based 8051). SDCC (GNU) compiler etc are
> >>available. See Hacking the Keyspan USB Serial Adaptor -
> >>http://people.omnigroup.com/wiml/soft/pic/keyspan.html
> >
> >I doubt this is the cheapest besides it uses the SDCC compiler. Not a
> >good move.
> >
> >/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
> >\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/\
> >/\/\/ chris@phaedsys.org www.phaedsys.org \/\/
> >\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
>
> Hello from Gregg C Levine
> Okay, why? I freely admit that particular compile is peculiar in its
workings, but
> that's all I know.
>
> For myself, since I build computer peripherals for special purposes, that
hack saves
> me time. Now all I need to do, is find one.
> Gregg C Levine drwho8 atsign att dot net
> "This signature asks the question, "'Why a Duck?"' "
>
Reply by Gregg C Levine●July 13, 20042004-07-13
In article <BrFCp$BYl+zAFAQ1@phaedsys.demon.co.uk>, chris@phaedsys.org
says...
>
>In article <6f784de2.0406151631.46b693fb@posting.google.com>, Steve
><stevecalfee@hotmail.com> writes
>>ffled@yahoo.com (Stu Cazzo) wrote in message
news:<61a8d61e.0406141913.48a6adb5@
>>posting.google.com>...
>>> Hello,
>>> I want to get started on an 8051 project. I already
>>> know C. What I am looking for is an 8051 eval board
>>> that comes with a C compiler, flash burner, code
>>> debugger, etc...
>>> In other words, I want to develop some basic, generic
>>> 8051 code in C, compile, link, download it into eval
>>> board and then debug/run it. I do not need any of the
>>> new flavors of the 8051. Any ideas where I can pick
>>> one up and which one I should buy?
>>>
>>> Thanks,
>>>
>>> Stu.
>>
>>The cheapest way to start with a complete 8051 development kit is to
>>use a keyspan (cypress ezusb based 8051). SDCC (GNU) compiler etc are
>>available. See Hacking the Keyspan USB Serial Adaptor -
>>http://people.omnigroup.com/wiml/soft/pic/keyspan.html
>
>I doubt this is the cheapest besides it uses the SDCC compiler. Not a
>good move.
>
>/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/\
>/\/\/ chris@phaedsys.org www.phaedsys.org \/\/
>\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Hello from Gregg C Levine
Okay, why? I freely admit that particular compile is peculiar in its workings, but
that's all I know.
For myself, since I build computer peripherals for special purposes, that hack saves
me time. Now all I need to do, is find one.
Gregg C Levine drwho8 atsign att dot net
"This signature asks the question, "'Why a Duck?"' "
Reply by Chris Hills●June 16, 20042004-06-16
In article <6f784de2.0406151631.46b693fb@posting.google.com>, Steve
<stevecalfee@hotmail.com> writes
>ffled@yahoo.com (Stu Cazzo) wrote in message news:<61a8d61e.0406141913.48a6adb5@
>posting.google.com>...
>> Hello,
>> I want to get started on an 8051 project. I already
>> know C. What I am looking for is an 8051 eval board
>> that comes with a C compiler, flash burner, code
>> debugger, etc...
>> In other words, I want to develop some basic, generic
>> 8051 code in C, compile, link, download it into eval
>> board and then debug/run it. I do not need any of the
>> new flavors of the 8051. Any ideas where I can pick
>> one up and which one I should buy?
>>
>> Thanks,
>>
>> Stu.
>
>The cheapest way to start with a complete 8051 development kit is to
>use a keyspan (cypress ezusb based 8051). SDCC (GNU) compiler etc are
>available. See Hacking the Keyspan USB Serial Adaptor -
>http://people.omnigroup.com/wiml/soft/pic/keyspan.html
I doubt this is the cheapest besides it uses the SDCC compiler. Not a
good move.
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/\
/\/\/ chris@phaedsys.org www.phaedsys.org \/\/
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Reply by Chris Hills●June 16, 20042004-06-16
In article <61a8d61e.0406141913.48a6adb5@posting.google.com>, Stu Cazzo
<ffled@yahoo.com> writes
>Hello,
>I want to get started on an 8051 project. I already
>know C. What I am looking for is an 8051 eval board
>that comes with a C compiler, flash burner, code
>debugger, etc...
>In other words, I want to develop some basic, generic
>8051 code in C, compile, link, download it into eval
>board and then debug/run it. I do not need any of the
>new flavors of the 8051. Any ideas where I can pick
>one up and which one I should buy?
>
>Thanks,
>
>Stu.
Try the Keil LPC900 board. (www.keil.com) it fits your spec and is
inexpensive.
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/\
/\/\/ chris@phaedsys.org www.phaedsys.org \/\/
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Reply by Steve●June 15, 20042004-06-15
ffled@yahoo.com (Stu Cazzo) wrote in message news:<61a8d61e.0406141913.48a6adb5@posting.google.com>...
> Hello,
> I want to get started on an 8051 project. I already
> know C. What I am looking for is an 8051 eval board
> that comes with a C compiler, flash burner, code
> debugger, etc...
> In other words, I want to develop some basic, generic
> 8051 code in C, compile, link, download it into eval
> board and then debug/run it. I do not need any of the
> new flavors of the 8051. Any ideas where I can pick
> one up and which one I should buy?
>
> Thanks,
>
> Stu.
The cheapest way to start with a complete 8051 development kit is to
use a keyspan (cypress ezusb based 8051). SDCC (GNU) compiler etc are
available. See Hacking the Keyspan USB Serial Adaptor -
http://people.omnigroup.com/wiml/soft/pic/keyspan.html
> Hello,
> I want to get started on an 8051 project. I already
> know C. What I am looking for is an 8051 eval board
> that comes with a C compiler, flash burner, code
> debugger, etc...
> In other words, I want to develop some basic, generic
> 8051 code in C, compile, link, download it into eval
> board and then debug/run it. I do not need any of the
> new flavors of the 8051. Any ideas where I can pick
> one up and which one I should buy?
>
> Thanks,
>
> Stu.
Reply by Tilmann Reh●June 15, 20042004-06-15
Stu Cazzo schrieb:
> I want to get started on an 8051 project. I already
> know C. What I am looking for is an 8051 eval board
> that comes with a C compiler, flash burner, code
> debugger, etc...
> In other words, I want to develop some basic, generic
> 8051 code in C, compile, link, download it into eval
> board and then debug/run it. I do not need any of the
> new flavors of the 8051. Any ideas where I can pick
> one up and which one I should buy?
Look at http://www.8052.com.
There's plenty of information, including development tools.
--
Dipl.-Ing. Tilmann Reh
Autometer GmbH Siegen - Elektronik nach Ma�.
http://www.autometer.de
Reply by Stu Cazzo●June 15, 20042004-06-15
Hello,
I want to get started on an 8051 project. I already
know C. What I am looking for is an 8051 eval board
that comes with a C compiler, flash burner, code
debugger, etc...
In other words, I want to develop some basic, generic
8051 code in C, compile, link, download it into eval
board and then debug/run it. I do not need any of the
new flavors of the 8051. Any ideas where I can pick
one up and which one I should buy?
Thanks,
Stu.