diff options
Diffstat (limited to 'decoders/eeprom93cxx')
| -rw-r--r-- | decoders/eeprom93cxx/__init__.py | 32 | ||||
| -rw-r--r-- | decoders/eeprom93cxx/pd.py | 137 |
2 files changed, 0 insertions, 169 deletions
diff --git a/decoders/eeprom93cxx/__init__.py b/decoders/eeprom93cxx/__init__.py deleted file mode 100644 index 036f1f7..0000000 --- a/decoders/eeprom93cxx/__init__.py +++ /dev/null @@ -1,32 +0,0 @@ -## -## This file is part of the libsigrokdecode project. -## -## Copyright (C) 2017 Kevin Redon <kingkevin@cuvoodoo.info> -## -## 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, see <http://www.gnu.org/licenses/>. -## - -''' -This decoder stacks on top of the 'microwire' PD and decodes the 93Cxx EEPROM -specific instructions. - -The implemented instructions come from the STMicroelectronics M93Cx6 EEPROM -datasheet. They are compatible with the Atmel AT93Cxx EEPROM with slightly -different names. - -Warning: Other EEPROMs using Microwire might have different operation codes -and instructions. -''' - -from .pd import Decoder diff --git a/decoders/eeprom93cxx/pd.py b/decoders/eeprom93cxx/pd.py deleted file mode 100644 index cd54b47..0000000 --- a/decoders/eeprom93cxx/pd.py +++ /dev/null @@ -1,137 +0,0 @@ -## -## This file is part of the libsigrokdecode project. -## -## Copyright (C) 2017 Kevin Redon <kingkevin@cuvoodoo.info> -## -## 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, see <http://www.gnu.org/licenses/>. -## - -import sigrokdecode as srd - -class Decoder(srd.Decoder): - api_version = 2 - id = 'eeprom93cxx' - name = '93Cxx EEPROM' - longname = '93Cxx Microwire EEPROM' - desc = '93Cxx series Microwire EEPROM protocol.' - license = 'gplv2+' - inputs = ['microwire'] - outputs = ['eeprom93cxx'] - options = ( - {'id': 'addresssize', 'desc': 'Address size', 'default': 8}, - {'id': 'wordsize', 'desc': 'Word size', 'default': 16}, - ) - annotations = ( - ('si-data', 'SI data'), - ('so-data', 'SO data'), - ('warning', 'Warning'), - ) - annotation_rows = ( - ('data', 'Data', (0, 1)), - ('warnings', 'Warnings', (2,)), - ) - - def __init__(self): - self.frame = [] - - def start(self): - self.out_ann = self.register(srd.OUTPUT_ANN) - self.addresssize = self.options['addresssize'] - self.wordsize = self.options['wordsize'] - - def put_address(self, data): - # Get address (MSb first). - a = 0 - for b in range(len(data)): - a += (data[b].si << (len(data) - b - 1)) - self.put(data[0].ss, data[-1].es, self.out_ann, - [0, ['Address: 0x%x' % a, 'Addr: 0x%x' % a, '0x%x' % a]]) - - def put_word(self, si, data): - # Decode word (MSb first). - word = 0 - for b in range(len(data)): - d = data[b].si if si else data[b].so - word += (d << (len(data) - b - 1)) - idx = 0 if si else 1 - self.put(data[0].ss, data[-1].es, - self.out_ann, [idx, ['Data: 0x%x' % word, '0x%x' % word]]) - - def decode(self, ss, es, data): - if len(data) < (2 + self.addresssize): - self.put(ss, es, self.out_ann, [2, ['Not enough packet bits']]) - return - - opcode = (data[0].si << 1) + (data[1].si << 0) - - if opcode == 2: - # READ instruction. - self.put(data[0].ss, data[1].es, - self.out_ann, [0, ['Read word', 'READ']]) - self.put_address(data[2:2 + self.addresssize]) - - # Get all words. - word_start = 2 + self.addresssize - while len(data) - word_start > 0: - # Check if there are enough bits for a word. - if len(data) - word_start < self.wordsize: - self.put(data[word_start].ss, data[len(data) - 1].es, - self.out_ann, [2, ['Not enough word bits']]) - break - self.put_word(False, data[word_start:word_start + self.wordsize]) - # Go to next word. - word_start += self.wordsize - elif opcode == 1: - # WRITE instruction. - self.put(data[0].ss, data[1].es, - self.out_ann, [0, ['Write word', 'WRITE']]) - self.put_address(data[2:2 + self.addresssize]) - # Get word. - if len(data) < 2 + self.addresssize + self.wordsize: - self.put(data[2 + self.addresssize].ss, - data[len(data) - 1].ss, - self.out_ann, [2, ['Not enough word bits']]) - else: - self.put_word(True, data[2 + self.addresssize:2 + self.addresssize + self.wordsize]) - elif opcode == 3: - # ERASE instruction. - self.put(data[0].ss, data[1].es, - self.out_ann, [0, ['Erase word', 'ERASE']]) - self.put_address(data[2:2 + self.addresssize]) - elif opcode == 0: - if data[2].si == 1 and data[3].si == 1: - # WEN instruction. - self.put(data[0].ss, data[2 + self.addresssize - 1].es, - self.out_ann, [0, ['Write enable', 'WEN']]) - elif data[2].si == 0 and data[3].si == 0: - # WDS instruction. - self.put(data[0].ss, data[2 + self.addresssize - 1].es, - self.out_ann, [0, ['Write disable', 'WDS']]) - elif data[2].si == 1 and data[3].si == 0: - # ERAL instruction. - self.put(data[0].ss, data[2 + self.addresssize - 1].es, - self.out_ann, [0, ['Erase all memory', - 'Erase all', 'ERAL']]) - elif data[2].si == 0 and data[3].si == 1: - # WRAL instruction. - self.put(data[0].ss, data[2 + self.addresssize - 1].es, - self.out_ann, [0, ['Write all memory', - 'Write all', 'WRAL']]) - # Get word. - if len(data) < 2 + self.addresssize + self.wordsize: - self.put(data[2 + self.addresssize].ss, - data[len(data) - 1].ss, - self.out_ann, [2, ['Not enough word bits']]) - else: - self.put_word(True, data[2 + self.addresssize:2 + self.addresssize + self.wordsize]) |