Thomas Zepf wrote:
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1)
2k code might be enough for simple programs.

2)
Rememper Atmel 1051 has only 2k code space.

Remarks:

1)
Right. It may be even enough for rather complex programs if you do not use too much ascii text for displaying menu, or large tables.

2)
WRONG! Atmel 89C1051 has only 1k (ONE kilobyte) codespace, which is even less ;-). The 89C2051 has 2k codespace.

Remark for Andy: search for 2051 and you shall find many, many projects with this little processor with 2k space.

Some people find it a real challenge to put as much functionality in this 2k as possible, while others find it a challenge to find controllers with build-in flash -as LARGE as possible- so they don't have to make their code compact. Which is the best, well, that will need a new treat (or search-back in this forum....). I personally prefer the first way :)

Henk