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Diffstat (limited to 'decoders/mlx90614/mlx90614.py')
-rw-r--r-- | decoders/mlx90614/mlx90614.py | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/decoders/mlx90614/mlx90614.py b/decoders/mlx90614/mlx90614.py deleted file mode 100644 index 1ee88d7..0000000 --- a/decoders/mlx90614/mlx90614.py +++ /dev/null @@ -1,87 +0,0 @@ -## -## This file is part of the sigrok project. -## -## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de> -## -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; either version 2 of the License, or -## (at your option) any later version. -## -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. -## -## You should have received a copy of the GNU General Public License -## along with this program; if not, write to the Free Software -## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -## - -# Melexis MLX90614 Infrared Thermometer protocol decoder - -import sigrokdecode as srd - -class Decoder(srd.Decoder): - api_version = 1 - id = 'mlx90614' - name = 'MLX90614' - longname = 'Melexis MLX90614' - desc = 'Infrared Thermometer protocol.' - license = 'gplv2+' - inputs = ['i2c'] - outputs = ['mlx90614'] - probes = [] - optional_probes = [] - options = {} - annotations = [ - ['Celsius', 'Temperature in degrees Celsius'], - ['Kelvin', 'Temperature in degrees Kelvin'], - ] - - def __init__(self, **kwargs): - self.state = 'IGNORE START REPEAT' - self.data = [] - - def start(self, metadata): - # self.out_proto = self.add(srd.OUTPUT_PROTO, 'mlx90614') - self.out_ann = self.add(srd.OUTPUT_ANN, 'mlx90614') - - def report(self): - pass - - def putx(self, data): - self.put(self.ss, self.es, self.out_ann, data) - - # Quick hack implementation! This needs to be improved a lot! - def decode(self, ss, es, data): - cmd, databyte = data - - # State machine. - if self.state == 'IGNORE START REPEAT': - if cmd != 'START REPEAT': - return - self.state = 'IGNORE ADDRESS WRITE' - elif self.state == 'IGNORE ADDRESS WRITE': - if cmd != 'ADDRESS WRITE': - return - self.state = 'GET TEMPERATURE' - elif self.state == 'GET TEMPERATURE': - if cmd != 'DATA WRITE': - return - if len(self.data) == 0: - self.data.append(databyte) - self.ss = ss - elif len(self.data) == 1: - self.data.append(databyte) - self.es = es - else: - kelvin = (self.data[0] | (self.data[1] << 8)) * 0.02 - celsius = kelvin - 273.15 - self.putx([0, ['Temperature: %3.2f °C' % celsius]]) - self.putx([1, ['Temperature: %3.2f °K' % kelvin]]) - self.state = 'IGNORE START REPEAT' - self.data = [] - else: - raise Exception('Invalid state: %d' % self.state) - |