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Member Since 30 Aug 2012
Offline Last Active Aug 16 2014 12:09 PM

Posts I've Made

In Topic: Using the TLC5940 on .NETMF 4.2

26 January 2014 - 08:00 AM

well, the tlc5940 is a bit a pain with netmf. it needs timing, wich would be nice in native with a timer (thats what i do on arduino)

- its just a mix of a shift register and a counter


theres different tlc59xx versions wich dont need a gs clock and a blank signal. they work great for led stuff, but not for led matrixes (flickering cos you cant control the blank line - timing issues)



btw: in the second links theres a link to nevyn's blog, with some code. that should work "ok" (i still see a timing issue with an external counter like that - you normally sent the new data directly after you blanked the chip)

In Topic: More I2C Questions

16 January 2014 - 12:35 AM

well, you dont call it like that.


accelerometers, gyros and stuff like that should update their register pointer automatically.

int data = ReadShort((byte)Register.GYRO_XOUT_H); - its either _H or _L, the second _should_ get

selected automatically.


normally you read all 6 registers at once, specify the first address, than read 6 bytes.


if that doesent work, read 2x 1 byte each and convert them to int16 (bitshifting)

In Topic: Strange "hanging" netduino 2

02 December 2013 - 06:55 PM

netduino 2 doesent have an erase pad :D


you have to delete it when its in dfu mode via dfuse.

In Topic: Netduino as Arduino Due

24 November 2013 - 09:47 PM

coocox is what you want i guess. ill use it for my stm32f4's. it also supports different brands (maybe even the sam3x - due)


idk that bootloader stuff, i use the stlink v2 on my discovery board as programmer/debugger

In Topic: STM32F4 mini

24 November 2013 - 01:51 PM

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

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