Search found 15 matches

by nsoatw
Tue Dec 08, 2015 9:27 am
Forum: The MicroPython pyboard
Topic: Ideas for next evolution of pyboard
Replies: 75
Views: 30268

Re: Ideas for next evolution of pyboard

What I've dreamed about for a long time is more RAM. Put 1Mb external SRAM on the current board, and I would be VERY satisfied.
by nsoatw
Fri Nov 13, 2015 2:20 pm
Forum: General Discussion and Questions
Topic: GPIO as CS for SPI
Replies: 3
Views: 1742

Re: GPIO as CS for SPI

I've used GPIO for SPI-CS with good results, nothing unforseen happened.
by nsoatw
Thu Jun 11, 2015 11:26 am
Forum: Hardware Projects
Topic: My own retro computer system
Replies: 6
Views: 3184

Re: My own retro computer system

When I use the bread-board I do have problems with long leads and 20MHz SPI. 10MHz with long leads or shorter leads, no problem. Proto-boards have been error free as well. I2C have not been problematic at all. Lucky I guess. Different chips seem to have different weaknesses though according to: http...
by nsoatw
Sun May 31, 2015 7:26 am
Forum: Hardware Projects
Topic: My own retro computer system
Replies: 6
Views: 3184

Re: My own retro computer system

Now with its own project page at:
http://hackaday.io/project/6025-skajntt
by nsoatw
Mon May 04, 2015 2:44 pm
Forum: Hardware Projects
Topic: My own retro computer system
Replies: 6
Views: 3184

Re: My own retro computer system

Yes, my bus is actually like UEXT without the UART-lines. I won't use those modules though, as I want to have fun doing my own HW and SW :D
by nsoatw
Mon May 04, 2015 10:46 am
Forum: Hardware Projects
Topic: My own retro computer system
Replies: 6
Views: 3184

My own retro computer system

I've started a project that tries to recapture my love for the old home computer concept, where there is a main unit that is expandable via cards. Like a cross between an Apple 2 and PC/XT. I've designed and built an expansion bus with I2C, SPI, power and slot-select on each slot. 8 pins for each sl...
by nsoatw
Fri May 30, 2014 1:48 pm
Forum: General Discussion and Questions
Topic: Port vs Pin
Replies: 2
Views: 1930

Re: Port vs Pin

Many thanks Dave, precisely what I nedded!
I have read parts of the ref manual, and just wanted to know if there were any specific stm-commands available, rather than writing assembler.
by nsoatw
Thu May 29, 2014 4:33 pm
Forum: General Discussion and Questions
Topic: Port vs Pin
Replies: 2
Views: 1930

Port vs Pin

I have searched but found nothing on how to access ports as a byte rather than as pins only.
What I'd like to do is connect an LCD, which has an 8-bit data port and 4 bits worth of control pins.
I was hoping I could access it something like this:
data_port = Port (PA0-PA7, output)
data_port.set(255)
by nsoatw
Wed May 28, 2014 5:51 pm
Forum: General Discussion and Questions
Topic: Simple serial
Replies: 0
Views: 1124

Simple serial

I just soldered the connectors on my board and sent "Hello world!" to a serial VFD. The soldering took much longer than the coding. Great! I really like the simplicity of MicroPython.
by nsoatw
Fri May 16, 2014 4:59 pm
Forum: General Discussion and Questions
Topic: REPL docs?
Replies: 3
Views: 1695

Re: REPL docs?

Thanks for the reply, REPL-coding became much easier!
Hopefully this info will also end up in the documentation soon? Or is there any other reference documentation regarding REPL?