Hi Michael
I too have used a ROACH 1 gpio to drive a phase switch at KHz rates. Our
system used an optical isolated driver circuit between the GPIO and noise
diode. I'm sure suitable parts could be purchased from an arduino reseller
for next to nothing.
The importance of matching the driver
Ah, interesting, didn't thought of that. I'll try to figure it out a bit more,
and if I get nowhere I'll use your approach.
Thanks!
Franco
Jack Hickish wrote
>Hi Franco,
>
>
>I've had this error before. To be honest, since ISE compiled my design fine
>and I could see no issues in
Hi Michael
In the HIPSR system (https://arxiv.org/abs/1702.00443) we use the GPIO on a
ROACH1 to control the noise diode on the Parkes 64m, so definitely not a
bad venture! 0.5 Hz should not pose any difficulties.
I would expect to measure closer to 5V (50 ohm terminated), but haven't
used the
Dear Casperites,
I, once again, need your wisdom. I'm trying to do floorplanning on a
model, but whenever I create a new project with Xilinx Planahead the
model fails to load. Just to be sure I'm not doing something wrong I'll
detail my workflow:
1. I compile a Simulink model using
Dear all,
I'm planning to use a 0.5Hz square wave, generated from the FPGA and output via
sync_out, to eventually fire our cal diode (via much cabling). A quick hardware
test today shows the sync_out port driving at circa 7V (!). This is a bit
higher than I was expecting. Does this venture as
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