jonk's articles:

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Seeking more input on hobbyist demo/educational stuff 104 63 (10/5/2012 11:06:49 AM) comp.arch.embedded Okay. Just to start off the list of candidate processors for educational purposes and writing up various considerations for them, let me offer this because then folks will say "you missed this.." and "what a... Jon

Seeking input on hobbyist demo/educational boards that have been successful/enjoyed/valued. 75 66 (9/26/2012 8:42:04 PM) comp.arch.embedded I'm writing a chapter for a book targeted for self-paced students (who may have some taken as much as a year or two of programming at a community college, but also may have very little experience and only en... Jon

Cortex-M3 vs PIC32 divide instruction 29 31 (9/6/2011 7:39:57 AM) comp.arch.embedded I've finally been considering a project to use either a Cortex-M3 or a PIC32 processor and I've a technical question unrelated to any "business issues" between these options -- the divide instruction operation.... Jon

a hobby class on microcontrollers 101 39 (6/27/2010 9:22:38 PM) comp.arch.embedded I need to think about a class that will include both young and old, all of whom have very little experience but at least the hope of trying to enjoy such a class on microcontrollers without knowing anything muc... Jon

Extended Hamming encode/decode 72 273 (3/7/2010 12:56:43 AM) comp.arch.embedded I needed to write some very simple c routines (tempted to use assembly, but not for this application at this time) to handle the following extended hamming code cases: [ 8, 4, 4] [16, 11, 4] [3... Jon

continued fraction program 65 61 (6/20/2009 9:50:33 PM) comp.arch.embedded Okay. I think I'm done playing, for now. There's a free continuous fraction program available. This program provides the convergents for the continuous fractions of a value (plus declining error terms) and i... Jon

arm7 core with fast monolithic 12-bit ADC 27 31 (2/11/2009 10:10:24 PM) comp.arch.embedded I'm just getting into a project which "prefers" the ARM7 for business reasons, not technical ones. I do _not_ have experience writing for the ARM7 beyond some modest playing around, but will muddle through tha... Jon

jonk's replies:

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Free Renesas RL78-G14 Microcontroller Demo Kit is a Neat Tool Toy! 14 19 (1/19/2013 3:17:42 PM) comp.arch.embedded http://microcontroller.com/news/Renesas_RL78_G14_Demo_Kit.asp This board has WiFi 802.11b and can act as an access point or a hotspot. Two LCD displays including eInk. Micro SD card slot. Sensors include a... billgiovino (10)

Non-text format for source code 62 21 (1/31/2013 7:20:31 PM) comp.arch.embedded For great many reasons, it would be convenient to have source code in some rich format rather then plain ASC text. I could think of embedding illustrations, links and data into file, custom coloring, indivi... nospam (2544)

large microprocessors? 41 21 (2/3/2013 6:17:29 AM) comp.arch.embedded I notice that the ram capacity (ignore program flash for now, but it tends to basically be proportionate) of microcontrollers seems to grow fairly continuously (say in 2x jumps) from very small (a dozen or so... no.email6 (1518)

Small controller with good on-chip oscillator 15 21 (2/21/2013 6:33:00 PM) comp.arch.embedded Hello All, any suggestions for small (e.g. TSSOP20) microcontrollers with a good on-chip oscillator? One of the best I found is the 9S08 with 1% max. drift in the 0..70�C range. The 9S08 would do the jo... obetz (224)

Really tiny microcontrollers 50 26 (2/25/2013 8:47:20 AM) comp.arch.embedded I'm wondering what the physically smallest microcontrollers are, that aren't too crazy to program and that are amenable to hand soldering with normal SMT tools. I've found some of the ATtiny parts in 2x2mm ... no.email6 (1518)

Sine Lookup Table with Linear Interpolation 120 19 (3/16/2013 10:30:51 PM) comp.dsp I've been studying an approach to implementing a lookup table (LUT) to implement a sine function. The two msbs of the phase define the quadrant. I have decided that an 8 bit address for a single quadrant ... gnuarm (2644)

booting the Linux on bare metal board. 13 10 (3/21/2013 6:08:24 AM) comp.arch.embedded Hi guys I was studying about the JTAG and than I all of sudden I got few questions in my mind regarding the linux booting on the embedded hardware. Actually I know the procedure of how the linux boots... piyushpandey

A C++-Language Question (Maybe C, too) 64 17 (4/2/2013 12:01:32 AM) comp.arch.embedded Technically this should be on the C++ language group, but I want an answer, not to either be sneered at or to start a religious war. I think this works the same if it's C, once you take out the C++-isms. ... tim177 (4406)

Microcross X-Tools license help? 10 2 (5/9/2013 11:33:11 PM) comp.arch.embedded It seems that Microcross, Warner Robins, GA a supplier of Visual X-Tools and gnu x-tools has gone away. Web site has been down since last year. I have used their tools on a few projects over the years and... nrm6097 (4)

Looking for ARM system with RTOS 30 31 (1/1/2013 1:54:30 AM) comp.arch.embedded I'm right at the end of my tether in trying to move some real time stuff (MIDI) to Linux. The ARM-9 platform I've chosen, while very nice in other ways, uses a proprietary FPGA interface for all the port in... bv2144 (52)