General > General Technical Chat
Easy money...£200k/yr job in electronics?
<< < (9/12) > >>
KaneTW:
Can you get fine PWM granularity (e.g. 0.1ns) with XMOS xCores (external parts are fine)? Looks like regular PWM goes down to 10ns/core, which is kinda slow. Actual PWM frequency is much lower, below 2 MHz.
tggzzz:

--- Quote from: KaneTW on March 25, 2020, 04:15:08 am ---Can you get fine PWM granularity (e.g. 0.1ns) with XMOS xCores (external parts are fine)? Looks like regular PWM goes down to 10ns/core, which is kinda slow. Actual PWM frequency is much lower, below 2 MHz.

--- End quote ---

I/O clocks can get 4ns resolution. I've no idea where you get the 2MHz from.

Of course you could add any external device to an xCORE MCU.

xCORE devices aren't magic. But they do get you predictable resolution and repeatability in software alone, along with significant parallelism.

For example, software can suck on a 100Mb/s ethernet serial stream and turn it into packets (or blow packets onto ethernet). At the same time you can be doing USB comms, DSP and front panel control. All with guaranteed throughput, latency and jitter.

No other MCU could get close to that, but obviously an FPGA could. Clearly xCORE won't replace FPGAs, but in some cases they can offer similar advantages to those that are comfortable with software.
ANTALIFE:
treez/10
KaneTW:
I mostly meant for my application, I need a PWM freq of < 2 MHz. Basically just wondering if there's a way to get high resolution PWM on one of these.
ebastler:
Guys -- while the merit of the original post in this thread is debatable, I still think it is very impolite to hijack a thread the way you do. Also, if your discussion is meant to have value (rather than just to troll treez), it should be moved to a suitably titled separate thread, so that others can find it now and in the future.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod