3.6.1. Signal generator utility
The Red Pitaya signal generator can be controlled using the generate command line utility.
redpitaya> generate
generate version 3.00-809-bce7a0397
Usage: generate channel amplitude frequency[,end_frequency] [type] [-c] [-d]
channel Channel to generate signal on [1, 2].
amplitude Peak-to-peak signal amplitude in Vpp [0.0 - 2.0].
frequency Signal frequency in Hz [0 - 62500000].
end_frequency Sweep-to frequency in Hz [0 - 62500000].
type Signal type [sine, sqr, tri, sweep, noise, ramp_up, ramp_down, dc, dc_neg] (default value sine).
-c Disable calibration. By default calibration enabled.
-d Debug FPGA registers.
Setting the frequency to 0 will disable the generator completely.
root@rp-f0a235:~# generate
generate version 2.07-494-d5436699b
Usage: generate channel amplitude frequency <type> <end frequency> <calib> <debug>
channel Channel to generate signal on [1, 2].
amplitude Peak-to-peak signal amplitude in Vpp [0.0 - 4.0].
frequency Signal frequency in Hz [0 - 62500000].
type Signal type [sine, sqr, tri, sweep, noise, dc].
end frequency Sweep-to frequency in Hz [0 - 62500000].
calib Disable calibration [-c]. By default calibration enabled.
debug Debug FPGA registers [-d].
Setting the frequency to 0 will disable the generator completely.
redpitaya> generate
generate version 1.00-35-25a03ad-25a03ad
Usage: generate channel amplitude frequency <gain> <type> <end frequency> <calib>
channel Channel to generate a signal on [1, 2].
amplitude Peak-to-peak signal amplitude in Vpp [0.0 - 2.0].
frequency Signal frequency in Hz [0.00 - 1.2e+08].
gain Gain output value [x1, x5] (default value x1).
type Signal type [sine, sqr, tri, sweep].
end frequency Sweep-to frequency in Hz [0.00 - 1.2e+08].
calib Disable calibration [-c]. By default calibration enabled
redpitaya> generate
generate version 0.90-299-1278
Usage: generate channel amplitude frequency <type>
channel Channel to generate a signal on [1, 2].
amplitude Peak-to-peak signal amplitude in Vpp [0.0 - 2.0].
frequency Signal frequency in Hz [0.0 - 6.2e+07].
type Signal type [sine, sqr, tri].
To run the signal generation utility, perform the following steps:
Load the FPGA image.
redpitaya> overlay.sh v0.94redpitaya> cat /opt/redpitaya/fpga/fpga_0.94.bit > /dev/xdevcfgStart the console application.
redpitaya> generate 1 1 1000 sine redpitaya> generate 2 1 1000 sqr redpitaya> generate 1 1 1000 tri redpitaya> generate 2 1 1000 sweep 10000 redpitaya> generate 1 1 1000 noise redpitaya> generate 2 1 1000 dc
Signal generator performance varies between Red Pitaya models. For more information please refer to the Red Pitaya Original Gen or Gen 2 comparison table.
Source code
The Red Pitaya GitHub repository contains the source code for the generate utility.