I'm prepared to spend $100 on the project if I can use off the shelf parts/boards.
A $50 Banana Pi M2 Berry, two USB audio dongles, $7 each, an SSD 120Gb and an 8Gb SD card to boot from (stolen from my camera). You see, everything is re-usable. Alan VK2ZIW On Tue, 5 Feb 2019 11:14:40 +1100, glen english wrote > BRIAN- you are right about enigneering time being short. and people > dont mind $20 instead of $5. > > I usually consider that I need 2x the clock and 1.5x the memory and > 1.5x the program memory for development. > > At least. the code needs to be able to run with 90% of it with > optimization off, big buffers for traces... > > The RX1020 though at 500 MHz, is a significant step from a even an > H7. and all the RAM in the 1020 is TCM. > > But a redesign is a redesign the board would change anyway. I am > happy to cad something up and hand over for someone to make... > > so everything is usually prototyped on a PC , mindful of the limits > of the micro.. > > What I'd like to see is a processor like the A5 with NEON. The NEON > core is the ticket. None of those processors are QFP, and they > usually require DRAM. Some have enough internal on chip memory for > our applications (say 256 kbytes) not to need external DRAM, and to > some degree we can run XIP from quad spi flash with good cache. > > Nevertheless, the 600 MHz RT processor clock speed is getting up > there... and the series will go to 800 MHz in time. > > On 5/02/2019 9:20 AM, Brian Bartholomew via Freetel-codec2 wrote: > >> price difference for a ham project is significant.... > > The most-limited resource is engineering time by people on this list. > > Some people here build and integrate their own electric vehicle, too, > > but everybody here doesn't. > > > > Would you rather have a $100 item in months, or a $25 item never > > because it requires code redesign for space-saving plus circuit board > > design and fabrication? > > > > Brian > > > > > > _______________________________________________ > > Freetel-codec2 mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 Alan Evil flourishes when good men do nothing. Consider the Christmas child. --------------------------------------------------------------------------- Alan Beard Unix Support Technician from 1984 to today 70 Wedmore Rd. Sun Solaris, AIX, HP/UX, Linux, SCO, MIPS Emu Heights N.S.W. 2750 Routers, terminal servers, printers, terminals etc.. +61 2 47353013 (h) Support Programming, shell scripting, "C", assembler 0414 353013 (mobile) After uni, electronics tech _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
