ch341eeprom -v -s 24c64 -r output.bin Searching USB buses for WCH CH341a i2c EEPROM programmer Found as device on USB bus Opened device Claimed device interface Device reported its revision Configured USB device Set i2c bus speed to Read bytes from EEPROM Wrote bytes to file Closed USB device xxd -l 128 output.bin 0000000: 0000 0000 0000 0000 0000 0000 0000 0000. 0000070: ffff ffff ffff ffff ffff ffff ffff ffff. 0000060: ffff ffff ffff ffff ffff ffff ffff ffff. 0000050: ffff ffff ffff ffff ffff ffff ffff ffff. 0000040: ffff ffff ffff ffff ffff ffff ffff ffff. 0000030: ffff ffff ffff ffff ffff ffff ffff ffff. 0000020: ffff ffff ffff ffff ffff ffff ffff ffff. 0000010: ffff ffff ffff ffff ffff ffff ffff ffff. ch341eeprom -v -s 24c64 -r output.bin Searching USB buses for WCH CH341a i2c EEPROM programmer Found as device on USB bus Opened device Claimed device interface Device reported its revision Configured USB device Set i2c bus speed to Read bytes from EEPROM Wrote bytes to file Closed USB device xxd -l 128 output.bin 0000000: ffff ffff ffff ffff ffff ffff ffff ffff. ch341eeprom -v -s 24c64 -e Searching USB buses for WCH CH341a i2c EEPROM programmer Found as device on USB bus Opened device Claimed device interface Device reported its revision Configured USB device Set i2c bus speed to Erased bytes of EEPROM Closed USB device sudo. #Ch341 programmer software freech341eeprom ch341eeprom - an i2c EEPROM programming tool for the WCH CH341a IC Version 0.5 copyright (c) 2011 asbokid This program comes with asbolutely no warranty This is free software, and you are welcome to redistribute it under certain conditions: GNU GPL v3 License: Usage: -h, -help display this text -v, -verbose verbose output -d, -debug debug output -s, -size size of EEPROM -e, -erase erase EEPROM (fill with 0xff) -w, -write write EEPROM with image from filename -r, -read read EEPROM and save image to filename Example: ch341eeprom -v -s 24c64 -w bootrom.bin sudo. See libusb-1.0-dev (on debian-based distros)Compiling gcc -o ch341eeprom ch341eeprom.c ch341funcs.c -lusb-1.0 Running. Requires gcc GNU make libusb-1.0 and the libusb library development files. #Ch341 programmer software licenseYou should have received a copy of the GNU General Public License along with this program. See the GNU General Public License for more details. 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. #Ch341 programmer software softwareCopyright Dec 2011, asbokid Licence This is free software: you can redistribute it and/or modify it under the terms of the latest GNU General Public License as published by the Free Software Foundation. #Ch341 programmer software codeCH341芯片支持5V电源电压或者3.3V 电源电压。.About Beta libusb code for EEPROM programmers based on the WinChipHead CH341a ICAuthor Written by asbokid and released under the terms of the GNU GPL, version 3, or later. CH341EVT.ZIP - some source code and tools written to be used with an evaluation board (may be useful for programming software that can access this device) CH341DS1.PDF - datasheet, in Chinese.
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