from LogAnalyzer import Test,TestResult import DataflashLog import collections class TestVCC(Test): '''test for VCC within recommendations, or abrupt end to log in flight''' def __init__(self): Test.__init__(self) self.name = "VCC" def run(self, logdata, verbose): self.result = TestResult() self.result.status = TestResult.StatusType.GOOD if not "CURR" in logdata.channels: self.result.status = TestResult.StatusType.UNKNOWN self.result.statusMessage = "No CURR log data" return # just a naive min/max test for now vccMin = logdata.channels["CURR"]["Vcc"].min() vccMax = logdata.channels["CURR"]["Vcc"].max() vccDiff = vccMax - vccMin; vccMinThreshold = 4.6 * 1000; vccMaxDiff = 0.3 * 1000; if vccDiff > vccMaxDiff: self.result.status = TestResult.StatusType.WARN self.result.statusMessage = "VCC min/max diff %sv, should be <%sv" % (vccDiff/1000.0, vccMaxDiff/1000.0) elif vccMin < vccMinThreshold: self.result.status = TestResult.StatusType.FAIL self.result.statusMessage = "VCC below minimum of %sv (%sv)" % (`vccMinThreshold/1000.0`,`vccMin/1000.0`)