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Dobrica Pavlinušić's random unstructured stuff
CH341A mini flash programmer: Revision 7
{image: ch341a_miniprogrammer.jpg}
^ info * http://onetransistor.blogspot.hr/2017/08/ch341a-mini-programmer-schematic.html ^ jumper on pins 1-2 SPI flash programmer mode 2-3 TTL serial mode https://github.com/setarcos/ch341prog .pre dpavlin@nuc:/nuc/ch341a$ git clone https://github.com/setarcos/ch341prog Cloning into 'ch341prog'... remote: Counting objects: 104, done. remote: Total 104 (delta 0), reused 0 (delta 0), pack-reused 104 Receiving objects: 100% (104/104), 34.79 KiB | 0 bytes/s, done. Resolving deltas: 100% (61/61), done. Checking connectivity... done. dpavlin@nuc:/nuc/ch341a$ cd ch341prog/ dpavlin@nuc:/nuc/ch341a/ch341prog$ make gcc -std=gnu99 -Wall ch341a.c main.c -o ch341prog -lusb-1.0 dpavlin@nuc:/nuc/ch341a/ch341prog$ ./ch341prog Usage: -h, --help display this message -i, --info read the chip ID info -e, --erase erase the entire chip -l, --length <bytes> manually set length -w, --write <filename> write chip with data from filename -r, --read <filename> read chip and save data to filename -t, --turbo increase the i2c bus speed (-tt to use much faster speed) -d, --double double the spi bus speed .pre ^ I2C https://sourceforge.net/projects/ch341eepromtool/ .pre dpavlin@nuc:/nuc/ch341a/ch341eepromtool_0.5$ gcc -o ch341eeprom ch341eeprom.c ch341funcs.c -lusb-1.0 dpavlin@nuc:/nuc/ch341a/ch341eepromtool_0.5$ dpavlin@nuc:/nuc/ch341a/ch341eepromtool_0.5$ ./ch341eeprom ch341eeprom - an i2c EEPROM programming tool for the WCH CH341a IC Version 0.5 copyright (c) 2011 asbokid <ballymunboy@gmail.com> 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: http://www.gnu.org/licenses/gpl.html Usage: -h, --help display this text -v, --verbose verbose output -d, --debug debug output -s, --size size of EEPROM {24c32|24c64} -e, --erase erase EEPROM (fill with 0xff) -w, --write <filename> write EEPROM with image from filename -r, --read <filename> read EEPROM and save image to filename Example: ch341eeprom -v -s 24c64 -w bootrom.bin .pre ^ SPI .pre git clone https://github.com/urjaman/flashrom/ git checkout -b origin/ch341a origin/ch341a dpavlin@nuc:/nuc/flashrom$ sudo apt-get install pciutils-dev .pre |