Search found 3821 matches

by dhylands
Fri Nov 07, 2014 12:32 am
Forum: General Discussion and Questions
Topic: Playing with WiFly
Replies: 1
Views: 2830

Re: Playing with WiFly

This post doesn't seem to have anything to do with the "Playing with Interrupts" thread that it was attached to, so I split it off into a separate thread.
by dhylands
Thu Nov 06, 2014 9:28 pm
Forum: Hardware Projects
Topic: Navigation pyskin - Board Design RFC
Replies: 46
Views: 39875

Re: Navigation pyskin

Does the GPS have an option for an external antenna?

For the quadcopter, it probably doesn't make sense, but for a ground based vehicle, it does.

If the VBAT line is the only special line, then you could still use it in the Y position by using a jumper wire.
by dhylands
Thu Nov 06, 2014 8:04 am
Forum: MicroPython pyboard
Topic: No CC4k Class in network module
Replies: 1
Views: 2385

Re: No CC4k Class in network module

To the best of my knowledge the pyboards don't ship with the network firmware.

You need to flash an image from here:
http://micropython.org/download/
by dhylands
Wed Nov 05, 2014 5:59 pm
Forum: Development of MicroPython
Topic: Parse.c DEF_RULE macro - How does it works?
Replies: 3
Views: 4085

Re: Parse.c DEF_RULE macro - How does it works?

I ran: make build-PYBV10/py/parse.pp I missed such rule being present, but shouldn't it be build-PYBV10/py/parse.i ? It seems many build systems don't bother with it. I find it just useful enough to put it in. The rule is here: https://github.com/micropython/micropython/blob/master/py/mkrules.mk#L4...
by dhylands
Wed Nov 05, 2014 4:23 pm
Forum: Development of MicroPython
Topic: Parse.c DEF_RULE macro - How does it works?
Replies: 3
Views: 4085

Re: Parse.c DEF_RULE macro - How does it works?

Hello. I am currently working on porting micropython to IAR Workbench environment. Naturally I encountered numerous errors, though I can't resolve all of them without help. For now I have a trouble understanding how parse.c and grammar.h works - DEF_RULE macro just blows my newbie mind. The error i...
by dhylands
Wed Nov 05, 2014 8:27 am
Forum: Development of MicroPython
Topic: Run more than one micropython instance
Replies: 30
Views: 24159

Re: Run more than one micropython instance

What are you trying to accomplish by running multiple instances?

This is not currently possible (as micropython assumes that it owns the entire processor).
by dhylands
Sun Nov 02, 2014 7:36 pm
Forum: General Discussion and Questions
Topic: OSError: [Errno 5]
Replies: 28
Views: 28255

Re: OSError: [Errno 5]

The original Macintosh (you know - the one with the 68000 and 128K of RAM) had a compacting heap. They did it by using double indirection. So instead of getting a pointer to an object, you got a pointer to a pointer to an object. They used a Master Table, which had all of the pointers to the objects...
by dhylands
Sun Nov 02, 2014 6:21 pm
Forum: General Discussion and Questions
Topic: Android device as UI to pyboard
Replies: 8
Views: 9504

Re: Android device as UI to pyboard

So it turns out that the Cortex M4 has some DSP instructions:
http://infocenter.arm.com/help/index.js ... DIGAC.html
Look for table 3.2
by dhylands
Sun Nov 02, 2014 12:39 am
Forum: General Discussion and Questions
Topic: Low power mode pyb.wfi()
Replies: 20
Views: 18329

Re: Low power mode pyb.wfi()

I'm running linux as well (and I tried 1.3.5 and it seems to be fine).