chicken 630 Posted July 24, 2013 Share Posted July 24, 2013 TI today announced two new LaunchPads for their Hercules line of MCUs: http://newscenter.ti.com/2013-07-24-Texas-Instruments-introduces-Hercules-LaunchPad-enabling-designers-to-evaluate-TIs-Hercules-MCUs-safety-features-for-less-than-20 Hercules MCU (Dual core ARM Cortex R4), running at 80/100MHz, 384KB flash, 32KB RAM http://www.ti.com/ww/en/launchpad/hercules.html $20 apiece seems a good deal, given that even the USB stick dev boards for these chips cost $79. dubnet, bluehash and pine 3 Quote Link to post Share on other sites
rockets4kids 204 Posted July 24, 2013 Share Posted July 24, 2013 Can anyone summarize the differences between these two chips? Quote Link to post Share on other sites
chicken 630 Posted July 24, 2013 Author Share Posted July 24, 2013 From the product brochure: It looks like RM42 is for industrial and medical applications while TMS750 is specifically for automotive (e.g. higher operating temperature, CAN bus). Quote Link to post Share on other sites
bluehash 1,581 Posted July 24, 2013 Share Posted July 24, 2013 Thanks chicken. http://www.43oh.com/2013/07/ti-releases-new-hercules-arm-cortex-r4-launchpads-under-20/ Quote Link to post Share on other sites
cde 334 Posted July 24, 2013 Share Posted July 24, 2013 Whats the difference between these and the Stell er, Tiva launchpads? Quote Link to post Share on other sites
oPossum 1,083 Posted July 24, 2013 Share Posted July 24, 2013 Whats the difference between these and the Stell er, Tiva launchpads? $7 igor and RobG 2 Quote Link to post Share on other sites
oPossum 1,083 Posted July 24, 2013 Share Posted July 24, 2013 Why are we talking about ARM here? Quote Link to post Share on other sites
chicken 630 Posted July 24, 2013 Author Share Posted July 24, 2013 Why are we talking about ARM here? Is that the elusive Wolfpad? Quote Link to post Share on other sites
simpleavr 399 Posted July 24, 2013 Share Posted July 24, 2013 What would be, in general, an ARM R series compare to the M series? I know M is for MCU, A is for application, R is for real-time. From an embedded programmer's perspective, what has a R core offer? More IOs, more timers? Anyone know? I am interested to learn. Quote Link to post Share on other sites
simpleavr 399 Posted July 24, 2013 Share Posted July 24, 2013 Is that the elusive Wolfpad? Why is it green? Did oPossum "make" it? Quote Link to post Share on other sites
Rei Vilo 695 Posted July 24, 2013 Share Posted July 24, 2013 Now, let's expect the support from Energia! Quote Link to post Share on other sites
cde 334 Posted July 24, 2013 Share Posted July 24, 2013 $7 Ha. No, I mean in terms of speed/processing power/use. What makes the Herc different from the Tiva? Is it like the difference between say the msp430 g2x and f5 series? Quote Link to post Share on other sites
bluehash 1,581 Posted July 24, 2013 Share Posted July 24, 2013 Why are we talking about ARM here? Launchpad Ecosystem. Quote Link to post Share on other sites
chicken 630 Posted July 24, 2013 Author Share Posted July 24, 2013 @@cde @@simpleavr re differences More RAM (12-32KB vs. 32-256KB), more flash (32KB-256KB vs. 256KB-3MB), more speed (80 vs. 80-220MHz, single vs. dual core) http://www.ti.com/lsds/ti/arm/overview.page But I guess the big differentiator is compliance with various industry, medical, automotive standards (not really relevant to hobbyists). cde 1 Quote Link to post Share on other sites
spirilis 1,265 Posted July 24, 2013 Share Posted July 24, 2013 I think the dual cores are meant to run in lock-step, for redundancy & accuracy-checking purposes. Also has ECC (error correction) for its flash & SRAM. Probably massive overkill for the vast majority of applications but when you want that extra bit of assurance that your MCU application will WORK, (basically) no matter what (firmware bugs notwithstanding)... sounds like this is a good choice for the job. Design an electric car's control systems around something like this. It adds extra measures to help dial out hardware externality-induced failure modes. I think the temperature tolerances are wider too, so this is immediately useful for extreme temperature applications. I'm guessing not too many hobbyists will have immediate uses for these features, but if anyone does it will make for a very fascinating hackaday article If Iron Man used a TI microcontroller for his suit, this would probably be it.... bluehash, cde, chicken and 1 other 4 Quote Link to post Share on other sites
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