Metadata-Version: 1.2
Name: pyi2cflash
Version: 0.2.2
Summary: I2C eeprom device drivers (pure Python)
Home-page: http://github.com/eblot/pyi2cflash
Author: Emmanuel Blot
Author-email: emmanuel.blot@free.fr
Maintainer: Emmanuel Blot
Maintainer-email: emmanuel.blot@free.fr
License: MIT
Description: pyi2cflash
        ==========
        
        .. image:: https://github.com/eblot/pyi2cflash/workflows/Python%20package/badge.svg
           :alt: Python package build status
        
        I2C eeprom device drivers (pure Python)
        
        I2C flash devices, also known as *DataFlash* are commonly found in embedded
        products, to store firmware, microcode or configuration parameters.
        
        PyI2CFlash_ comes with several pure Python drivers for those flash devices, that
        demonstrate use of I2C devices with PyFtdi_. It could also be useful to dump
        flash contents or recover from a bricked devices.
        
        .. _PyI2CFlash : https://github.com/eblot/pyi2cflash
        .. _Python: http://python.org/
        .. _PyFtdi : https://github.com/eblot/pyftdi
        
        Supported I2C flash devices
        ---------------------------
        
        ============== ========== ========== ========== ========== ========== ========== ========== ========== ========== ==========
        Vendor          Microchip  Microchip  Microchip  Microchip  Microchip  Microchip  Microchip  Microchip  Microchip  Microchip
        -------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
        EEPROM           24AA01_    24AA02_    24AA04_    24AA08_    24AA16_   24AA32A_    24AA64_   24AA128_   24AA256_   24AA512_
        ============== ========== ========== ========== ========== ========== ========== ========== ========== ========== ==========
        Status              ?          ?         No         No         No         Ok          ?          ?          ?         ?
        -------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
        Size               128        256        512        1Ki        2Ki        4Ki        8Ki       16Ki       32Ki       64Ki
        ============== ========== ========== ========== ========== ========== ========== ========== ========== ========== ==========
        
        Notes about performances
        ........................
        
        * *Read* operation is synchronous with I2C bus clock: it therefore only depends
          on the achievable frequency on the I2C bus, which is bound to the highest
          supported frequency of the flash device.
        * *Write* operation depends mostly on the flash device performance, whose upper
          limit comes mostly from the maximum write packet size of the device, as the
          device needs to be polled for completion after each packet: the shorter the
          packet, the higher traffic on the I2C and associated overhead.
        
        .. _24AA01: http://ww1.microchip.com/downloads/en/DeviceDoc/21711c.pdf
        .. _24AA02: http://ww1.microchip.com/downloads/en/DeviceDoc/21709c.pdf
        .. _24AA04: http://ww1.microchip.com/downloads/en/DeviceDoc/21124E.pdf
        .. _24AA08: http://ww1.microchip.com/downloads/en/DeviceDoc/21710c.pdf
        .. _24AA16: http://ww1.microchip.com/downloads/en/DeviceDoc/21703d.pdf
        .. _24AA32A: http://ww1.microchip.com/downloads/en/DeviceDoc/21713M.pdf
        .. _24AA64: http://ww1.microchip.com/downloads/en/DeviceDoc/21189f.pdf
        .. _24AA128: http://ww1.microchip.com/downloads/en/DeviceDoc/21191M.pdf
        .. _24AA256: http://ww1.microchip.com/downloads/en/DeviceDoc/21203M.pdf
        .. _24AA512: http://ww1.microchip.com/downloads/en/DeviceDoc/21754M.pdf
        
        Notes about 24AA32
        ..................
        
        This device is declared obsolete by the manufacturer and is not supported.
        
        Only 24AA32A revision is supported.
        
        Supported I2C flash commands
        ----------------------------
        
        Read
          Read byte sequences of any size, starting at any location from the I2C
          flash device
        
        Write
          Write arbitrary byte sequences of any size, starting at any location to the
          I2C flash device
        
        Dependencies
        ------------
        
        * Python_ 3.5 or above is required.
        * PyFtdi_ 0.42 or above is required.
        
Keywords: driver,ftdi,usb,i2c,twi,flash,eeprom
Platform: UNKNOWN
Classifier: Development Status :: 3 - Alpha
Classifier: Environment :: Other Environment
Classifier: Natural Language :: English
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: MacOS :: MacOS X
Classifier: Operating System :: POSIX
Classifier: Operating System :: Microsoft :: Windows
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Topic :: System :: Hardware :: Hardware Drivers
Requires-Python: >=3.5
