[Blabber] Diy Dev Kit

Guan Yang guan at yang.dk
Tue Dec 15 17:30:51 UTC 2015


FYI for KL2 users: the thing has a built in ROM bootloader. I'm sure it sucks for various reasons, but it does work.

> On Dec 15, 2015, at 12:06, Chris Stratton <cs07024 at gmail.com> wrote:
> 
> I did some stuff with the kl25z earlier this summer as a proof of concept for hosting a USB GSM dongle, and it may be largely pin compatible?  Can probably give you a spare blank PCB I made for it if you want one to play with though the drill size on the headers came out too small.  Also put one on a generic QFN breakout and have some spares of those if you want one.  I think I got as far as using one built with a USB device connector with openocd to program another built with a host connector (used a kl25z freedom board as the original programmer).
> 
> Chris
> 
>> On Dec 15, 2015 11:22 AM, "Konstantin Avdashchenko" <konsgn at hotmail.com> wrote:
>> Hey Hackmanhattan,
>> 
>> 
>> I wanna make my own dev kit for the following microconttroller:
>> 
>> http://www.digikey.com/product-detail/en/MKL27Z64VFM4/MKL27Z64VFM4-ND/5361440
>> 
>> 
>> Mainly because it's one of the cheapest arm's I can find and has usb support.
>> 
>> 
>> The main reason I'm making this is to expand the functionality of the Global_boot project.
>> 
>> The previous board I made, I had in mind a rfid lock. Using a PIC18f25K50, it was based around an rfid reader, nokia display, and an esp8266 port.
>> 
>> It also had 3 led's , a bootloader/user configurable button, servo/solenoid output, a uart port separate from the esp header, a buzzer, and a separate Vin port when not powered off of USB.
>> 
>> It worked great for talking to the esp8266 as you never had to unplug the esp chip, just press a button and it automagically reboot the chip into program/run mode. Also, since it acted like a cdc device,
>> 
>> you could change baud on the fly.
>> 
>> 
>> Anyway, for this new board, The one thing I want for sure is a micro usb connection.
>> 
>> 
>> Also, I may want to design it in such a way that it could be used as a controller for a sensored brushless motor. Not sure yet.
>> 
>> 
>> Does anyone want to work on this with me? Or, does anyone want me to break any particular feature out so that they can use the board as well?
>> 
>> 
>> Here's a link to the datasheet . 
>> 
>> I'm going to make this board one way or another, but I would like to see other people getting use out of it, so lemme know.
>> 
>> Science!
>> 
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