yes, the last 2 messages say it.
i does not like Pins.yourpin -
it wants AnalogChannels.yourpin
NooM's Content
There have been 301 items by NooM (Search limited from 07-June 23)
#44315 Trouble with the pins on plus2
Posted by
on 27 January 2013 - 07:14 PM
in
Netduino Plus 2 (and Netduino Plus 1)
#46818 Trouble powering Mini using battery
Posted by
on 07 March 2013 - 11:53 AM
in
Netduino Mini
http://wiki.netduino...mini_pinout.pdf
pin 21 is _only_ for 5v regulated. id not connect 4x1.6v batteries to it
the 9v bat should work fine on pin24 and gndpin
my mini runs with one 3.3volt battery (lifepo4) - i stepped it up to 5v and used pin21.
#45759 Transferring large text files: Serial or Ethernet?
Posted by
on 18 February 2013 - 08:13 PM
in
General Discussion
both would work, but serial is a bit more tricky, ethernet/tcp-ip makes sure your packets arrive, serial not, so you have to implemewnt a method to make sure you actually recieve all packets first.
than you need to split your 2mb file up to many smallchunks (serial and ethernet)
edit: also keep in mind you have very limited ram, so you want read a chunk, than write it to sd card, than read the next
iam not sure what would be faster.
eeprom, i love eeproms, but they only have 64kb per piece, there arent bigger ones aviable (yes, some have 128kb, but thats in fact 2x64kb ...)
so that wount work for 2mb files very well
edit: no corssover, just normal ethernet cable
so in total: thats very doable, but needs some work, and can be tricky
#46360 Touch, 320x240 LCD Driver for Netduino+ 2
Posted by
on 27 February 2013 - 07:58 PM
in
Project Showcase
id get an stm32fx with lcd from ebay (iam sure you can contact the manufacture) - than
you can "relativly easy" wite you own drivers there - and its so cheap, it would be cheaper than yours actually (they are like 20-40€)
that also gives the option to add your own commands and whatever you want
#46406 Touch, 320x240 LCD Driver for Netduino+ 2
Posted by
on 28 February 2013 - 10:46 AM
in
Project Showcase
yeah use a seperate chip as "graphic card" (native, not netmf)
the toolchain, yeah. i got coocox setup, and the serial communication ready, but
thats all ni could do (without much reading) - but a professional should be
able todo way more. arm offers a library collection called cmsis wich helps
accessing all the stuff like serial, spi..
but let me explain my post: their display/board (that vizic) looks very much like the ebay ones, and its NOT very lowcost.
i also think it works the way i descibed it, someone wrote a driver for it wich
you control per uart - like you send a simple command: draw reachtange at position x,y with size w,h (thats around 9 bytes)
#50391 Thread Pooling
Posted by
on 10 June 2013 - 12:39 AM
in
Netduino Plus 2 (and Netduino Plus 1)
#50242 The thread '<No Name>' (0x2) has exited with code 0 (0x0).
Posted by
on 04 June 2013 - 08:49 AM
in
Netduino Plus 2 (and Netduino Plus 1)
that question also gets asked every month 
its what ziggurat said, its normal, so dont worry. an error looks different.
(windows apps show the same message when a thread ends)
#48894 The thread '<No Name>' (0x2) has exited with code
Posted by
on 30 April 2013 - 07:54 PM
in
General Discussion
there is no problem, its normal. dont worry
#47075 System.Exception during Debug.Print
Posted by
on 12 March 2013 - 12:25 PM
in
General Discussion
i guess its: Debug.Print(new string(System.Text.Encoding.UTF8.GetChars(buffer)));
when you get the chars, it expects that the byte data is correct, now with serial the chances
are big that it isent (my experience so far)
if you send the data from a computer, print out there the byte data, and also on the netduino ( Debug.Print(buffer[0]); .. in a loop till buffer lenght) and compare them. it happened a lot for the data gets shifted and never syncronizes again
iam using cobs as packetframe, since that it never happened again
#47087 System.Exception during Debug.Print
Posted by
on 12 March 2013 - 02:54 PM
in
General Discussion
btw, in my signature is a link to my playground, and there is the COBS code.
i really like it, cos it automatically resyncs. or aqt least makes it possible.
i removed the serial implementation for now since i had a bug with it on my board, so iam not
sure about netduino. but its very simple.
you encode your data, make a new byte array with 2 bytes bigger of the encoded data, add a 0 at pos 0 and the lenght of the encoded data on pos1, than in receive funktion look for the 0, when you receive one, the packet starts, than read the lenght, you know that how big the packet is and read the ammount of bytes, than decode it, violla
#46993 String to byte array for serial output
Posted by
on 10 March 2013 - 11:59 PM
in
Netduino Plus 2 (and Netduino Plus 1)
Thread.Sleep(-1); will sleep forever, so your write never gets called. just remove it.
port.Write(teststring, 1, testing.Length); - why start with 1 here? you start with 0.
public static void Main()
{
initComs(); //opens com port and awaits data
Thread.Sleep(500);//added this in case the com port wasn't ready fast enough
//importData(); //imports data from SD card--for later
string teststring= "Powerisoff";
byte[] data = System.Text.Encoding.UTF8.GetBytes(teststring);
port.Write(data, 0, data.Length);
Thread.Sleep(-1);
}
static void initComs()
{
port = new SerialPort("COM1", 19200, Parity.None, 8, StopBits.One);
port.DataReceived += new SerialDataReceivedEventHandler(RecievedData);
port.Open();
}
#50678 Strange AnalogInput readings
Posted by
on 20 June 2013 - 10:41 PM
in
General Discussion
doesent sound good. have you ever added 5v to the analog inputs? that would have damaged it.
with a pulldown it shows 0.0v normally.
#54417 Strange "hanging" netduino 2
Posted by
on 02 December 2013 - 06:55 PM
in
Netduino 2 (and Netduino 1)
netduino 2 doesent have an erase pad
you have to delete it when its in dfu mode via dfuse.
#54268 STM32F4 mini
Posted by
on 24 November 2013 - 01:51 PM
in
Netduino Mini
well if you wanna use the netduino formware you have to look on wich pins is the usb port connected (important for flashing programs)
and you have to use a 25mhz crystal (iirc)
yes i meant the link you posted - this port needs a 8mhz crystal
you can change the crystal needed, but you have to recompile the netmf-firmware
on a sidenote: on mine i wanted the sdio interface and a micro sd card, so basic stamp wouldnt fit, in a breadboard it still leave 2 pins free each side
#54252 STM32F4 mini
Posted by
on 23 November 2013 - 03:31 PM
in
Netduino Mini
i designed one, sadly i placed the sd card slot one, so i have to wait for the new pcb's where i fixed this..
https://www.dropbox....board_front.png
https://www.dropbox...._board_back.png
its a f405, was quite simple actually
it can run the netmf for stm32 port in codeplex.
(iam using it with native code tho)
edit: oh and theres the cerb40 allready aviable.
#49426 STM32F4 Discovery Running .NET MF
Posted by
on 14 May 2013 - 01:14 PM
in
General Discussion
nice, i thought the onboard (not on-chip) peripherals have different pins than the netmf uses (many pins can have different types of usage)
leds and button is kinda easy.
a-d is also, the serial ports are also in the netmf port (except one isnt working becouse of the micro usb port having the same pins)
all 3 spi modules work, one i2c (netmf limit)
and the 2 da converters are also implemented.
wich spi module and cs pin it uses? and whats about the interrupt pin? (the accelerometer)
also, what you think about the audio ic? that would be cool to have too, but from what ive read its i2s 
#47295 Still a Serial Port Problem
Posted by
on 17 March 2013 - 05:30 PM
in
General Discussion
now i can confirm that serial is not the most reliable, but it works quite well for me.
i noticed that when i send a lot of data very fast (115200) some byte gets lost/shifted by one byte.
i than implemented an packet framing, and also send the size of the packet. its very very reliable since than
id remove all the thread.sleep in your sample code and stuff the bytes into a buffer.
i know you wanna work with a gsp shield, so encoding and stuff wount be of any help.
#50241 Static or Instance
Posted by
on 04 June 2013 - 08:46 AM
in
Netduino Plus 2 (and Netduino Plus 1)
My general practice is to have the constructor of the main class create an instance of it's self and run from there. Can I assume the examples run as static to keep it easy to understand
exactly this. i find it ugly to make all static, and for me it looks odd and confusing.
about gc isnt much to say: it cares about it on its own. memory management: dont push more items in a queue than you remove and your fine
#50051 SPI Speed with ADC
Posted by
on 28 May 2013 - 10:12 AM
in
Netduino Mini
yes you could speed it up, but not in netmf. you would have to add that to the firmware, in c/c++.
netmf is interpreted and therefore not as fast as c/c++ code.
that with the pwm is a bad idea, it wount work, and even if, i wouldnt increase any speed.
calling the spi write/read often is just not very efficient, it has some overhead.
not even that doesent help you, but ill have to add: writing bigger junks is very fast compared to writing a lot of small ones.
#49123 SPI or I2C LCD Suggestions?
Posted by
on 06 May 2013 - 08:50 PM
in
Netduino Plus 2 (and Netduino Plus 1)
thats extremly expensive!
id have bought this: http://www.ebay.com/...t-/400347869193
or that: http://www.ebay.com/...0-/400347868649
(i have some of the nokia ones, spi and very easy to use - the one with white backlight are better!)
#52009 SPI and networking, concurrant, doesn't work?
Posted by
on 06 August 2013 - 11:16 PM
in
Netduino Plus 2 (and Netduino Plus 1)
hmm.
try using > 2mhz as spi clock.
(hmm, well that should be fixed long time ago and not interfere with ethernet.. hmm)
and try using SPI_Devices.xxx
btw: from what i know also 16mhz is max the netduino can do (some division problems or whatnot, iam not sure)
#47185 SPI and I2CDevice not working together
Posted by
on 14 March 2013 - 01:33 PM
in
Netduino Plus 2 (and Netduino Plus 1)
in my signature is a link to my playground, you can find a multi i2c and multi spi class there. and a simple rtc (ds1307) class that shows the usage of the multi i2c (spi is very simmiliar to use!)
#46944 SPI and I2CDevice not working together
Posted by
on 09 March 2013 - 04:58 PM
in
Netduino Plus 2 (and Netduino Plus 1)
i used both together and it worked fine. (different devices, but spi and i2c, each with multiple devices)
add some code so we can have a look, wild guessing is no fun
#48243 Signature check fail Er_flash.sig
Posted by
on 10 April 2013 - 09:53 AM
in
Netduino Mini
try it again with the files and "guide" from here:
http://forums.netdui...-v420-update-1/
select the version wich you wanna have, one if for ttl deployment, the other for the 12v rs232 port.
#50945 SerialPort / Itead Studio Bluetooth Shield V2.2
Posted by
on 29 June 2013 - 11:06 PM
in
Netduino Plus 2 (and Netduino Plus 1)
did you test it with your pc?
your connecttodrive function looks very strange to me, but ive never worked with windows phone.
doesent it have a normal serialport class?
also, before you use the drive, you have to pair it first (at least on my pc, i search for device once, enter the pairing code, than i can open to serialport of it)
