AVR-Chat

What do you need explained? There is a data sheet on the
Atmel web site that explains "everything".

Jim


On Mon, 26 Nov 2007 05:07:50 -0000
 "top_speed_2006" <top_speed_2006@yahoo.com> wrote:
> Dear all;
>          Anyone can explain to me ::::
> The ATmega8535
> -8K Bytes of In-System Self-Programmable Flash
> Endurance: 10,000 Write/Erase Cycles
> ? Optional Boot Code Section with Independent Lock Bits
> In-System Programming by On-chip Boot Program
> True Read-While-Write Operation
> 

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http://www.thinkdifferentstore.com/
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Dear all;
         Anyone can explain to me ::::
The ATmega8535
-8K Bytes of In-System Self-Programmable Flash
Endurance: 10,000 Write/Erase Cycles
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation

top_speed_2006 <top_speed_2006@yahoo.com> wrote:          Dear all;
Anyone can explain to me ::::
The ATmega8535
-8K Bytes of In-System Self-Programmable Flash
Endurance: 10,000 Write/Erase Cycles
– Optional Boot Code Section with Independent Lock Bits
In-System Programming by On-chip Boot Program
True Read-While-Write Operation



                           -------------------------------------------------------------------------------------------------------------------------------------8kb flash : you have 8kb memrory to store your program(code).
  endourance: the maximum times that you can read of or write to eprom memory.
  evrey read or write is considered one time.


       
---------------------------------
Never miss a thing.   Make Yahoo your homepage.

[Non-text portions of this message have been removed]

On Mon, Nov 26, 2007 at 05:07:50AM -0000, top_speed_2006 wrote:
> Dear all;
>          Anyone can explain to me ::::
> The ATmega8535
> -8K Bytes of In-System Self-Programmable Flash
> Endurance: 10,000 Write/Erase Cycles
> ? Optional Boot Code Section with Independent Lock Bits
> In-System Programming by On-chip Boot Program
> True Read-While-Write Operation

What is there to explain? The above is rather self-explanatory if you
are in a position to need those features.

I would recommend against learning on an 8535. Its one of the oldest
AVR's and as a result is not supported by JTAG or DebugWire emulation.
Newer better parts (ATmega164P) that do support JTAG or DW are
available for about $1 less than 8535 at DigiKey in quantity 1. At
quantity 25 the cost is essentially the same, whats going on here?.

Beginners should not be subjected to having to learn via burn-and-crash
when one can single step and breakpoint code on the final target for
only $51 for an AVR Dragon.

-- 
David Kelly N4HHE, dkelly@HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.

This is incorrect. You can read an infinite number of
times. Only writes are limited.

Jim

On Mon, 26 Nov 2007 05:58:37 -0800 (PST)
 alex levenie <secret0police@yahoo.com> wrote:
> 
> 
> top_speed_2006 <top_speed_2006@yahoo.com> wrote:
>          Dear all;
> Anyone can explain to me ::::
> The ATmega8535
> -8K Bytes of In-System Self-Programmable Flash
> Endurance: 10,000 Write/Erase Cycles
> ? Optional Boot Code Section with Independent Lock Bits
> In-System Programming by On-chip Boot Program
> True Read-While-Write Operation
> 
> 
> 
>
                           -------------------------------------------------------------------------------------------------------------------------------------8kb
> flash : you have 8kb memrory to store your program(code).
>   endourance: the maximum times that you can read of or
> write to eprom memory.
>   evrey read or write is considered one time.
> 
> 
>        
> ---------------------------------
> Never miss a thing.   Make Yahoo your homepage.
> 
> [Non-text portions of this message have been removed]
> 

---------------------------------------------------------------
The Think Different Store
http://www.thinkdifferentstore.com/
For All Your Mac Gear
---------------------------------------------------------------

--- In AVR-Chat@yahoogroups.com, "Jim Wagner" <jim_d_wagner@...> 

> This is incorrect. You can read an infinite
> number of times. Only writes are limited.

This is also not really correct.  You can write all you want to, 
although only writing bits from one to zero will succeed.  The 
write/erase cycle endurance tells you how many times (minimum) you can 
erase a bit that has been written to zero or, perhaps, how many times 
you can erase a sector in which any of the bits have been written to 
zero.  It's the erase that counts.  Since erases are sector based, each 
sector wears out independently of the others.  In practice, you can 
think of the endurance limit as the number of times you can reprogram 
the chip, which is probably what you meant.

Graham.