Hello!
I'm working on project regarding industrial DC power and "returning" DC power supply (not watts but kilowatts) in industry.
In order to evaluate different power converters FFT is very handy tool and Teensy FFT1024 are good in a lot of cases.
But - looking through Audio library I cannot find a way how to start FFT from interrupt. I want to start several FFT processes un several Teensy 3.6 at the same moment.
Interrupt is well known tool to start something at the same moment.
Till now I have implemented 15 pcs of Teensy 3.1 based power measurement / logging devices for fast and synchronised bi-directional DC (600V) and 3-phase mains power measurements up to 400 KW every 20ms.
I can conclude that Teensy 3 work perfectly in to hard (from EMC point of view) industrial environment (noise from 230 KW aluminium spot welding, for example), installed directly in to electric power cabinets.
Now is time for synchronous FFT and due to my very successful experience before I'm interested to perform synchronous FFT (via interrupt) on Teensy 3.6 base. May be one have experience how to do that?
Other point is possibility to slightly tune chip clock. Can it be possible to use small trim capacitor and quartz in serial connection?
Thanks in advance!
I'm working on project regarding industrial DC power and "returning" DC power supply (not watts but kilowatts) in industry.
In order to evaluate different power converters FFT is very handy tool and Teensy FFT1024 are good in a lot of cases.
But - looking through Audio library I cannot find a way how to start FFT from interrupt. I want to start several FFT processes un several Teensy 3.6 at the same moment.
Interrupt is well known tool to start something at the same moment.
Till now I have implemented 15 pcs of Teensy 3.1 based power measurement / logging devices for fast and synchronised bi-directional DC (600V) and 3-phase mains power measurements up to 400 KW every 20ms.
I can conclude that Teensy 3 work perfectly in to hard (from EMC point of view) industrial environment (noise from 230 KW aluminium spot welding, for example), installed directly in to electric power cabinets.
Now is time for synchronous FFT and due to my very successful experience before I'm interested to perform synchronous FFT (via interrupt) on Teensy 3.6 base. May be one have experience how to do that?
Other point is possibility to slightly tune chip clock. Can it be possible to use small trim capacitor and quartz in serial connection?
Thanks in advance!