Hi Nils,
How much current can I get from each GPIO pin of the Red Pitaya? And how much current from all GPIO pins simultaneously? I'd like to transmit TTL signals to a 110 ohm load (VOH-min = 2 Volts) and I'm not sure I could get enough current from the Red Pitaya.
Thanks,
Lior
Maximal output current of GPIO pins
-
- Posts: 1441
- Joined: Sat Jun 07, 2014 12:49 pm
- Location: Königswinter
Re: Maximal output current of GPIO pins
Hi Lior,
the drivers of the GPIOs are configured for a drive strength of 8mA (applies to sourcing and sinking). I think the power supply is sufficient to drive the max current on all GPIOs simultaneously.
the drivers of the GPIOs are configured for a drive strength of 8mA (applies to sourcing and sinking). I think the power supply is sufficient to drive the max current on all GPIOs simultaneously.
-
- Posts: 7
- Joined: Wed Apr 13, 2016 7:30 am
Re: Maximal output current of GPIO pins
Thanks Nils,
Is it possible to reconfigure the drivers to output higher currents? If so, how?
Thanks,
Lior
Is it possible to reconfigure the drivers to output higher currents? If so, how?
Thanks,
Lior
-
- Posts: 1441
- Joined: Sat Jun 07, 2014 12:49 pm
- Location: Königswinter
Re: Maximal output current of GPIO pins
As far as I know the only way to reconfigure them is to edit the drive strength in the constraints file and build a new bitstream. Supported values are 4, 8, 12, 16.
jadalnie klasyczne ekskluzywne meble wypoczynkowe do salonu ekskluzywne meble tapicerowane ekskluzywne meble do sypialni ekskluzywne meble włoskie
Who is online
Users browsing this forum: No registered users and 70 guests