| ??? 02/23/11 07:17 Read: times |
#181252 - Leaping to Linux would be ludicrous! Responding to: ???'s previous message |
Richard Erlacher said:
I'd consider getting one of the LINUX-equipped eval boards that abound on the www, most of which appear to be under $200 US That would be a ludicrous way to replace an 805x!! To "bite the ARM bullet" as a replacement for 805x it would be far more appropriate to look at Cortex-M0 or -M3 and one of the many eval boards available at under US$20. Some are even under US$10; eg, 
http://uk.farnell.com/stmicroel...dp/1824325 http://www.st.com/stm32-discovery Note that includes full on-chip debug, and all pins accessible on 0.1" pitch; You get a Cortex-M3 with 128KB Flash, 8KB RAM; It can be powered from the USB - so you don't even need a separate power supply! See: http://www.8052.com/forum/reply/179785 These kinds of boards are often given away in promotions; eg: http://www.nxp.com/campaigns...ub=gallery and get used to using the GNU tools Indeed - GCC gives you a fully-capable, "free" (as in beer) toolset. the "Free" 805x HLL's are way too costly for one-offs Eh??? and the GNU stuff is purportedly pretty much capable of producing executable code for the ARM core, regardless of the peripheral set. Not just "purportedly" - this is certainly true. Then I'd figure out how to build modules that link and load into an arbitrary ARM memory space No big deal there The first couple of years could be painful, Years?? More like months or even weeks for a competent microcontroller developer - provided you're familiar with modern development tools & techniques. Doesn't that make some sense? Not leaping to Linux, no! After all, the ARM is much more HLL-friendly than the 805x. Indeed! |
