Cheap indeed, I have been eying ARM for a while. I would like to hear the experiences of others on this topic. So far it seems like Martin said NXP's LPC series is just about the cheapest on the market. But the real question is toolchain support. I know there are some pretty good commercial (expensive) ones. I had read that there is an open source Eclipse based IDE bundled with GCC. Does it work alright? Also, programming and debugging these ARM's requires a standalone JTAG programmer. Are there any good tools (hardware or software like openocd) out there to do that? On Mon, Mar 3, 2014 at 8:05 AM, Martin Klingensmith wrot= e: > On 3/3/2014 6:04 AM, alan.b.pearce@stfc.ac.uk wrote: >> Harmony is a complete re-write of the libraries to allow mixing and matc= hing of the various modules a lot more easily, some of which do not play to= gether nicely when attempts to use them together in the MLA. Each will work= fine on its own, but because they weren't designed to co-operate with each= other. The re-write enforces co-operation between all the all the modules = so they use common include files and other makes things work properly. > > I found a divide by zero bug in the FAT library just a few days ago. I > was surprised. Both at the need for an arbitrary divide operation and > not checking the denominator for zero before doing it. > > So anyway I hope they're fixing these things. ARM and the associated > software tools are really taking off and I think Microchip is a little > worried. TI has Code Composer Studio which comes free with some low-cost > development tools. Atmel has a variety of good open source tools along > with Atmel Studio. Microchip has MPLABX which (yes, IMO) still doesn't > work as well as v8, and almost no professional third party support or > open source support. > > There are very tiny low power low cost ARM chips. NXP has the > LPC1102/1104 which is a 2.3mm x 2.3mm 16 ball grid array. > 32kB flash, 8kB RAM, 50 MHz internal osc. > > Pretty nice, I say, and a pretty good competitor at $1.50 if you're > using a comparably capable PIC. I guess Microchip still has the dirt > cheap white-goods market where $0.50 is still just too much for the > microcontroller. The 10F200 is $0.35. > > - > Martin K > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 Jason White --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .