[Lazarus] Using Lazarus on Embedded Linux?

Mark Morgan Lloyd markMLl.lazarus at telemetry.co.uk
Tue Sep 28 10:18:56 CEST 2010

Michael Schnell wrote:
>  On 09/27/2010 03:45 PM, Mark Morgan Lloyd wrote:
>> But there are several different interfaces to Flash storage 
>> technology, CompactFlash (i.e. PCMCIA -> IDE/ATA) is only one of them. 
>> Different considerations probably apply to other MTD devices (in 
>> particular SD and its derivatives), which might make them either more 
>> or less vulnerable to abuse.
> The problem is not related with the interface. it's completely 
> internally within the card.

I wonder if I could have a reality check here. The thing that's 
bothering me is that, for example, a CompactFlash card looks like an 
IDE/ATA disc hence must have internal firmware handling wear levelling. 
Similarly, an MMC card with a matched host controller looks like a 
storage device so presumably the same applies.

But what is the situation with an MMC card in isolation, being driven by 
bit-banging or by code in e.g. a BASIC Stamp using SPI? Do these still 
look like discs?

Going back to the OP's question, there certainly used to be things like 
battery-backed SRAM cards that fitted in a PCMCIA slot, if I recall 
correctly Sun used them to move configuration information between 
computers. Does anybody put bare Flash into a similar outline, i.e. 
relying on the kernel and drivers to handle all housekeeping?

Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]

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