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-rw-r--r--lib/lennart/SigrokCLIInterface.py89
1 files changed, 89 insertions, 0 deletions
diff --git a/lib/lennart/SigrokCLIInterface.py b/lib/lennart/SigrokCLIInterface.py
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+++ b/lib/lennart/SigrokCLIInterface.py
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+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)