Not all EEPROMs of this series have (just) a 'c' in the name.
+++ /dev/null
-##
-## 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
+++ /dev/null
-##
-## 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])
--- /dev/null
+##
+## 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 93xx 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
--- /dev/null
+##
+## 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 = 'eeprom93xx'
+ name = '93xx EEPROM'
+ longname = '93xx Microwire EEPROM'
+ desc = '93xx series Microwire EEPROM protocol.'
+ license = 'gplv2+'
+ inputs = ['microwire']
+ outputs = ['eeprom93xx']
+ 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])