diff options
Diffstat (limited to 'lib/lennart/SigrokCLIInterface.py')
-rw-r--r-- | lib/lennart/SigrokCLIInterface.py | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/lib/lennart/SigrokCLIInterface.py b/lib/lennart/SigrokCLIInterface.py new file mode 100644 index 0000000..b28a8a9 --- /dev/null +++ b/lib/lennart/SigrokCLIInterface.py @@ -0,0 +1,89 @@ +import subprocess +import time + +from dfatool.lennart.SigrokInterface import SigrokInterface +import logging + +logger = logging.getLogger(__name__) + + +class SigrokCLIInterface(SigrokInterface): + def __init__( + self, + bin_temp_file="temp/out.bin", + sample_rate=100_000, + fake=False, + ): + """ + creates SigrokCLIInterface object. Uses the CLI Interface (Command: sigrok-cli) + + :param bin_temp_file: temporary file for binary output + :param sample_rate: The sample rate of the Logic analyzer + :param fake: if it should use existing data + """ + super(SigrokCLIInterface, self).__init__(sample_rate) + self.fake = fake + self.bin_temp_file = bin_temp_file + self.sigrok_cli_thread = None + + def forceStopMeasure(self): + """ + Force stopping measure, sometimes needs pkill for killing definitly + :return: None + """ + self.sigrok_cli_thread.terminate() + + try: + self.sigrok_cli_thread.wait(timeout=10) + except subprocess.TimeoutExpired: + logger.warning("sigrok-cli has not stopped. Killing it.") + self.sigrok_cli_thread.kill() + + self.sigrok_cli_thread.communicate() + self.runOpenAnalyze() + + def runMeasure(self): + """ + starts the measurement, with waiting for done + """ + if not self.fake: + self.runMeasureAsynchronous() + self.waitForAsynchronousMeasure() + + def runMeasureAsynchronous(self): + """ + starts the measurement, not waiting for done + """ + shellcommand = [ + "sigrok-cli", + "--output-file", + self.bin_temp_file, + "--output-format", + "binary", + "--continuous", + "-d", + self.driver, + "--config", + f"samplerate={self.sample_rate} Hz", + ] + self.sigrok_cli_thread = subprocess.Popen(shellcommand) + + def waitForAsynchronousMeasure(self): + """ + Wait until is command call is done + """ + if not self.fake: + self.sigrok_cli_thread.wait() + self.runOpenAnalyze() + + def runOpenAnalyze(self): + """ + Opens the generated binary file and parses it byte by byte + + """ + in_file = open(self.bin_temp_file, "rb") # opening for [r]eading as [b]inary + data = in_file.read() # if you only wanted to read 512 bytes, do .read(512) + in_file.close() + + for x in data: + self.analyzeData(x) |