diff options
| -rwxr-xr-x | bin/msp430-etv | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/bin/msp430-etv b/bin/msp430-etv index 18d7622..9cf0fb4 100755 --- a/bin/msp430-etv +++ b/bin/msp430-etv @@ -150,7 +150,7 @@ def main(): parser.add_argument( "--plot", metavar="UNIT", - choices=["U", "I", "P"], + choices=["U", "I", "P", "P/U"], help="Plot voltage / current / power over time", ) parser.add_argument( @@ -391,6 +391,24 @@ def main(): ) plt.legend(handles=[energyhandle, meanhandle]) plt.ylabel("Current [A]") + elif args.plot == "P/U": + (energyhandle,) = plt.plot( + data[1:, 0] * 1e-6, + power_from_energy / (data[1:, 2] * 1e-3), + "b-", + label="I=ΔE/(Δt·U)", + markersize=1, + ) + (meanhandle,) = plt.plot( + data[1:, 0] * 1e-6, + smooth_power / (data[1:, 2] * 1e-3), + "r-", + label="mean(I, 10)", + markersize=1, + ) + PELT().get_changepoints((smooth_power / (data[1:, 2] * 1e-3))[:400]) + plt.legend(handles=[energyhandle, meanhandle]) + plt.ylabel("Current [A]") else: (energyhandle,) = plt.plot( data[1:, 0] * 1e-6, |