The big advantage with the Arduino Mega is lots of 8 bit ports available for parrallel i/o. The Arduino Uno pretty much forces all i/o to be serialized one way or another.
On Sun, Apr 17, 2022 at 3:33 PM Martin Nicholas via Amforth-devel < amforth-devel@lists.sourceforge.net> wrote: > On Sun, 17 Apr 2022 07:47:15 +0100 > Tristan Williams <h...@tjnw.co.uk> wrote: > > > Hi Christian, > > > > Glad it worked. > > > > > How much of 256KB flash is effectively usable with AmForth on the > > > 2560? ? > > > > 64k only (which is heaps) - W and IP are 16-bits only. The upper 64k is > still available, a little bit is used for the flashing code. I use > some of this space for user messages. > > > Good question. I don't know. The file avr8/words/store-i_big.asm may > > give some clues. > > > > > Will this work as well on a Chinese ATmega2560ProMini (with FTDI > > > USB chip for terminal input) ? > > > > Again, I don't know. However, if the board has an ATmega2560 mcu > > running at 16 MHz then there is good chance. I think only by flashing > > the board and testing it will you have a better idea. > > > > The clones work fine. Out of the box you might have to blow the fuses > first - before flashing the memory. > > -- > Regards, > > Martin Nicholas. > > E-mail: reply-2...@mgn.org.uk (Address will be valid throughout 2022). > > > _______________________________________________ > Amforth-devel mailing list for http://amforth.sf.net/ > Amforth-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/amforth-devel > _______________________________________________ Amforth-devel mailing list for http://amforth.sf.net/ Amforth-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amforth-devel
