Lpc2000

This is emminently doable...A few issues to concern your self though:

1.  Make sure you have boot-up code in your internal FLASH, (if you 
are using the LPC2214). With this boot-up code, you can setup your 
external memory parameters, (wait-states, burst mode params, address 
decode etc).

2.  If you are using a FLASH-less part, then you MUST use the correct 
bus-width for the defaults for each memory bank..otherwise your system 
will not work at all! Plus, you need to make sure you have some boot 
code already resident on your external FLASH.

3.  Make absolutely sure your BCFGn register is properly setup for 
external FLASH operation.

4.  Your external FLASH will inherently run slower than the internal 
FLASH. Therefore, get as much boost as possible by picking the correct 
NOR-FLASH, and try as much as possible to get nibble-mode or burst 
mode...this will greatly improve the performance of your system with 
little increases in the unit cost of your system.

5.  Last but not least, make sure your hardware is wired up properly..
.Byte select lines, chip select etc...

Ken Wada

--- In lpc2000@yahoogroups.com, "smoutpatrick" <sonpat@b...> wrote:
>
> Hi,
> 
> What would be the consequences if my hardware design based on the 
> LPC2214 uses 16 bit flash devices that only supports 16 bit 
accesses?
> Can I write bytes in the flash using the __packed type modifier?
> 
> Thanks for the feedback,
> 
> Patrick Smout
>