Fastest bit toggle rate using teensy 4.1 timers and interrupts

B

bablu75

New member
Hi there,
I need to generate a 5MHz data transfer. I have used teensytimertool, interval timer so far but the pin doesn't toggle beyond 500ns period(high+low part).
Any help would be appreciated please.
Furthermore, as I increase it from 1us period, the jitter increases too. Around 120ns for 500ns period.
 
joepasquariello said:
Can you say more about what you mean by "data transfer", and why do you want to do this with timers and interrupts?
Click to expand...
On every interrupt call I want to transfer binary data (bit by bit)to a gpio pin. Let's say 1011, it means
Pin high for 200ns
Pin low for 200ns
Pin high for 200ns
Pin high for 200ns

Why use interrupts? Because I have to perform some calculations and ADC data intake when not in isr..
 
You may not be able to achieve a 5-MHz interrupt rate, and if you do, you'll have little or no time for other I/O or calculations. I think you need to look for a different approach.
 
You must log in or register to reply here.
Back
Top