3 replies to this topic

[Murat GUNES]

Hi,

 

I have a netduino plus 2 and firmware 4.2.2.2 successfully filashed. I need to produce a signal (a square wave) of 2 MHz with 250 ns positive and negative pulse width. As I figured out, by reading the forum, it's impossible to achieve a frequency more then 500 KHz with PWM. Is there another way to get a 2 MHz square wave or should I back to STM32F4Discovery + MikroC (I really don't like both as a C# developer).

 

Another question I've been reading the forum and noticed that there is no a stable way for to produce a microsecond delay in NETMF, don't you think this is a handicap? Thanks in advance.

 

Inst. Murat GUNES

Kocaeli University Department of Computer Programming

BEAM R&D IT Manager

[Shadi]

Using the Microsoft.SPOT.Hardware.PWM class, what happens when you try SetPulse(500, 250)?

[Murat GUNES]

When I use ->

 

PWM fm = new PWM(Cpu.PWMChannel.PWM_0, 500, 250, PWM.ScaleFactor.Nanoseconds, false);

 

it doesn't response, nothing happens. But it's very strange that we cannot achieve a PWM with nanosecond dutycycle, I am changind to STM32F4Discovery unfortunately.

 

Thanks for the reply...

[NooM]

its not Cpu.PWMChannel.

- its PWMChannels.yourpin

 

cpu. maps the hardware pins, so cpu.pin0 would be pin0 on the uC