mbus / m3-python Goto Github PK

Libraries and utilities for interfacing with M3 and ICE

Python 100.00%

m3 python python-library embedded research university-of-michigan

m3-python's Introduction

MBus

MBus is the next-generation interconnect that enables the millimeter-scale computing class.

MBus is a chip-to-chip bus designed for ultra-constrained systems. MBus is a multi-master bus supporting an arbitrary number of nodes, priority arbitration, efficient acknowledgements, and extensible addressing, with only four wires and consuming only 3.5 pJ/bit/chip.

MBus is power-aware, enabling the design of power-oblivious systems. Individual chips can fully power off and MBus will automatically take care of all the tricky details.

For more information visit mbus.io.

Repository Layout

This repository contains a reference MBus implementation and is the implementation used by the Michigan Micro Mote project at the University of Michigan. The MBus Verilog is considered stable and has been tested in dozens of fabricated chips.

releases: Packaged, formal releases of MBus. Use the latest release if you wish to include MBus in your own projects. The mbus_example directory is the template for creating new releases.
mbus: The development directory of MBus.
layer_controller: A higher-level interface that wraps the MBus frontend. The layer controller implements the MPQ protocol described in the MBus Specification and provides a register/memory interface to the rest of the chip.
- The layer controller originally had separate implementations for simpler peripherals and complex chips (the CPU). As of v3, these are now consolidated into a unified design.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

MBus Name and Logo

Use of the MBus name and logo are subject to the MBus Research End User License Agreement.

The agreement is available at http://mbus.io/static/MBus_EULA_v1.0.pdf

m3-python's People

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lukefahr

m3-python's Issues

Bin Bug

m3_ice goc flash PRCv14_sleep_wakeup/PRCv14_sleep_wakeup.bin
INFO --------------------------------------------------------------------------------
INFO -- M3 ICE Interface
INFO
INFO Guessing ICE is at: /dev/cu.usbserial-A603TU7M
INFO Connected to serial device at /dev/cu.usbserial-A603TU7M
INFO This library supports versions...
INFO 0.1
INFO 0.2
INFO 0.3
INFO This ICE board supports versions...
INFO 0.3 **Chosen version
Traceback (most recent call last):
File "/usr/local/bin/m3_ice", line 9, in
load_entry_point('m3==0.4.4', 'console_scripts', 'm3_ice')()
File "/usr/local/lib/python2.7/site-packages/m3-0.4.4-py2.7.egg/m3/m3_ice.py", line 118, in cmd
m.args.func()
File "/usr/local/lib/python2.7/site-packages/m3-0.4.4-py2.7.egg/m3/m3_common.py", line 651, in cmd_flash
self.m3_ice.read_binfile(self.m3_ice.args.BINFILE)
File "/usr/local/lib/python2.7/site-packages/m3-0.4.4-py2.7.egg/m3/m3_common.py", line 486, in read_binfile
self.hexencoded = m3_common.read_binfile_static(binfile)
File "/usr/local/lib/python2.7/site-packages/m3-0.4.4-py2.7.egg/m3/m3_common.py", line 465, in read_binfile_static
if guess_type_is_hex(binfile):
File "/usr/local/lib/python2.7/site-packages/m3-0.4.4-py2.7.egg/m3/m3_common.py", line 457, in guess_type_is_hex
for line in open(binfile):
File "/usr/local/Cellar/python/2.7.12/Frameworks/Python.framework/Versions/2.7/lib/python2.7/codecs.py", line 314, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf8' codec can't decode byte 0x91 in position 4: invalid start byte

=====================================================================
Patch that will catch the exception and just return false

$ git diff
diff --git a/m3/m3_common.py b/m3/m3_common.py
index 8339a08..015cda0 100644
--- a/m3/m3_common.py
+++ b/m3/m3_common.py
@@ -454,12 +454,15 @@ class m3_common(object):
     @staticmethod
     def read_binfile_static(binfile):
         def guess_type_is_hex(binfile):
-            for line in open(binfile):
-                for c in line.strip():
-                    c = ord(c)
-                    if c < 0x20 or c > 0x7a:
-                        return False
-            return True
+            try:
+                for line in open(binfile):
+                    for c in line.strip():
+                        c = ord(c)
+                        if c < 0x20 or c > 0x7a:
+                            return False
+                return True
+            except UnicodeDecodeError:
+                return False

         if guess_type_is_hex(binfile):
             binfd = open(binfile, 'r')

Snoop bug

======================================================
pip install m3_ice + snoop fails
======================================================$ pip install m3_ice
$ m3_ice snoop
INFO --------------------------------------------------------------------------------
INFO -- M3 ICE Interface
INFO
INFO Guessing ICE is at: /dev/cu.usbserial-A603TU7M
INFO Connected to serial device at /dev/cu.usbserial-A603TU7M
INFO This library supports versions...
INFO 0.1
INFO 0.2
INFO 0.3
INFO This ICE board supports versions...
INFO 0.3 **Chosen version
Traceback (most recent call last):
File "/usr/local/bin/m3_ice", line 11, in
sys.exit(cmd())
File "/usr/local/lib/python2.7/site-packages/m3/m3_ice.py", line 105, in cmd
m.args.func()
File "/usr/local/lib/python2.7/site-packages/m3/m3_ice.py", line 91, in cmd_snoop
snooper = mbus_snooper(self.args, self.ice)
File "/usr/local/lib/python2.7/site-packages/m3/m3_common.py", line 782, in init
for idx,callback in enumerate(self.args.callback):
TypeError: 'NoneType' object is not iterable

======================================================
building from source works

$ git clone https://github.com/mbus/m3-python.git
$ cd m3-python/
$ python setup.py build
$ python setup.py install
$ m3_ice snoop
INFO --------------------------------------------------------------------------------
INFO -- M3 ICE Interface
INFO
INFO Guessing ICE is at: /dev/cu.usbserial-A603TU7M
INFO Connected to serial device at /dev/cu.usbserial-A603TU7M
INFO This library supports versions...
INFO 0.1
INFO 0.2
INFO 0.3
INFO This ICE board supports versions...
INFO 0.3 **Chosen version
INFO Script is waiting to print any MBus messages.
INFO To quit, press Ctrl-C
WARNING No messages for 10 seconds, resetting ICE

mbus / m3-python Goto Github PK

m3-python's Introduction

MBus

Repository Layout

MBus Name and Logo

m3-python's People

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m3-python's Issues

Bin Bug

=====================================================================
Patch that will catch the exception and just return false

Snoop bug

======================================================
building from source works

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mbus / m3-python Goto Github PK

m3-python's Introduction

MBus

Repository Layout

MBus Name and Logo

m3-python's People

Contributors

Stargazers

Watchers

Forkers

m3-python's Issues

===================================================================== Patch that will catch the exception and just return false

====================================================== building from source works

Recommend Projects

Recommend Topics

Recommend Org

=====================================================================
Patch that will catch the exception and just return false

======================================================
building from source works