This will be a brief guide on using it under windows. The manufacturer of ch341a chip offers drivers for all operating systems. Ch341a programmer software download jobs, employment freelancer. Is there any way i can test out, interface directly with. Ch341a usb to i2ciicspiuartttlisp serial adapter eppmem. The unit is supplied with two four pin headers to be soldered onto the 16 pin and 8 pin soic converter board. It also supplies common modem communication signal in order to expand uart for. Ch341a i2c programming windows api engineering hub. C message is a write transmission, the least significant bit will be sent as a 0 while if it is a read, the software will append a 1 in the lsb position. Is there any way i can test out, interface directly with i2c and spi. Most simple way to access your hardware from pc using i2c,spi interfaces and gpio. There was a time when usb to serial hardware meant one company. Usb serial ch341a now has a special edition for these windows versions.
A popular device is the socalled ch341a miniprogrammer that you can buy for 2 to 5 usd. In uart mode, ch341 provides alternant rate control signals such as serial transfer enable, serial receive in ready etc. Recently i bought dollatek ch341a usb zu uartiicspittlisp adapter eppmem parallelwandler with very promising features from ch341a usb to uartiicspittlisp adapter eppmem parallel converter standard parallel printer port lpt interface. Additionally, ch341a data pins that are not used for synchronous serial interfaces can be configured as gpio pins. Ch341a mini programmer black edition latest software free. Pc pitstop began in 1999 with an emphasis on computer diagnostics and maintenance. Ch341a mini programmer schematic and drivers tadelectronics. Code issues 2 pull requests 0 actions projects 0 security insights. However the fact that you simply access it from a terminal rather than needing proprietary. Super fast universal standalone gang programmer with eight independent. Ch341a 24 25 series eeprom flash bios usb programmer.
If youre looking for the latest software version 1. Ch341a programmer usb to uart iic spi i2c convertor. You can by this chip drirectly via ebay, search with keywords usb i2c. A wide variety of ch341a programmer options are available to you. First download this zip which contains the driver, software, and eeprom dumps. When selecting addresses within usbtoi2c, the software assumes the least significant bit is zero write. Getting started with lc ch341a usb conversion module. Updated january 2020 this is the full installation package for usbto i2c pro and usbtospi pro. Shop the top 25 most popular ch341a programmer at the best prices. Controling the i2c bus with autoit with the ch341 or. Ch341a programmer usb to uart iic spi i2c convertor parallel. Ch341a usb to i2ciicspiuartttlisp serial adapter epp. Asynchronous serial port, rs232, rs485, etc print port, parallel port, epp or mem mode and the commonly used 2wire and 4wire synchronous serial interface.
Ch341a eeprom flash bios usb programmer abra electronics. It can be interfaced with parallel ports, serial ports, i2c and spi devices. Please note that this repository is a coagulation of knowhow from different sources. It also seems to have drivers for windows 98, 2000, xp, 2003, vista, and server 2008 as well. Dumping firmware with the ch341a programmer black hills. Updated january 2020 this is the full installation package for usbtoi2c pro and usbtospi pro. Microchip have some usb to spi and i2c bridge chips, and many of the more. Wch ch341 eeprom programming tool an i2c serial eeprom programming tool for the winchiphead ch341 ic.
Wch ch341 eeprom programming tool an i2c serial eeprom programming tool for the wch ch341a. Great for programming 24 series eeproms via i2c and 25 series bios via spi communication protocol. China us eeprom, china us eeprom manufacturers and. Osdn find software external sites wch ch341 eeprom programming tool download file list. The chip is manufactured by chinese company jiangsu qinheng ltd. Usb to i2c and spi only provides download and debug i2c interface eeprom chip and spi interface flash chip software, no debugging othe ri2c and spi interface chip software. Ch341a is an usb interface chip that can emulate uart communication, standard parallel port, memory parallel port and synchronous serial i2c, spi. About 56% of these are integrated circuits, 2% are development boards and kits, and 31% are other electronic components. Universal 40pin chip programmer with isp capabilities and usb 2. Aug 05, 2015 download i2c eeprom programmer for free. Documents and software related to the famous ch341a used in i2cspi flash programmers. A series of eeprom can support 24 and st, winb ind, amic, mxic, sst, spansion, eon, pmc, etc. Ch341a is the usb interface chip capable of i2c, spi and serial communication.
Introduction ch341 is a usb bus convert chip, providing uart, printer port, parallel and synchronous serial with 2wire or 4wire through usb bus. Ch341 usb to uart, i2c, spi parallel breakout board. The problem is that this device comes asis, without any documentation or software. Download file list wch ch341 eeprom programming tool osdn.
Ch341a usb to uart iic spi ttl isp eppmem parallel port converter module onboard operating indicato. I2cprog supports standalone and incircuit serial memory chip burning for all popular i2c eeproms. Ch341a is an usb interface chip that can emulate uart communication, standard parallel port interface, parallel communication and synchronous serial i2c, spi. Features product features ch341a usb control chip insidefullspeed usb interface compatible with usb v2 0 the design of the standard usba male computer usb power supply the simulation standard serial used to upgrade serial peripherals additional serial port or via usb supports 3 3v and 5v ttl. Way back in the days of dos, philips had a simple printer port interface and utility program that bitbanged i2c, but with the removal of legacy ports, and increased security on direct hardware access thats no longer viable on a modern pc buspirate is actually a mcu with a usb cdc interface. It is a mini portable eeprom and bios programmer, that connects via your usb port. The driver can generate software interrupts for all input pins. In spite of this, software tools for ch341a are not very easy to find. Ch341a drivers were collected from official websites of manufacturers and other trusted sources. Ch341a all in 1 usb to spi i2c iic uart ttl isp description. Wch ch341 eeprom programming tool an i2c serial eeprom programming tool for the wch ch341a brought to you by. Mar 10, 2019 ch341a is an usb interface chip that can emulate uart communication, standard parallel port, memory parallel port and synchronous serial i2c, spi. Ch341a usb serial eeprom reader under linux danmans blog.
The ic is somehow limited in this configuration, because the programmer makes use. The device actually has rs232, i2c, spi, and 8 general purpose io gpio pins. Discover over 6015 of our best selection of 93cxx eeprom programmer, 93 eeprom programmer, 95080 eeprom. New usb device found, idvendor1a86, idproduct5523 1982. During the early days of the dot com boom, our online pc maintenance tools were skyrocketing.
I recently found another linux kernel driver i2cch341usb available at. The main purpose of the ch341a programmer is to back up, erase, program, calibrate and other actions on various software. Documents and software related to the famous ch341a used in i2c spi flash programmers also called as bios programmers bosejich341store. Best value ch341a programmer great deals on ch341a.
Ch341a usb to uart iic spi ttl isp eppmem parallel port. Documents and software related to the famous ch341a used in i2cspi flash programmers also called as bios programmers. Controling the i2c bus with autoit with the ch341 or ch341a. The driver can be used with ch341a usb to uarti2cspi adapter boards to connect i2c devices to a linux host additionally, ch341a data pins that are not used for synchronous serial interfaces can be configured as gpio pins. Ch341 eeprom and spi flash programmer tosiek kodowanie znakow. Official driver packages will help you to restore your usb eppi2c. They even offer api for programmers who want to build software to talk to ch341a. Windows 7, windows 7 64 bit, windows 7 32 bit, windows 10, windows 10 64 bit, windows 10 32 bit, windows. Use ch341a with asprogrammer on windows one transistor. Discover over 6015 of our best selection of 93cxx eeprom programmer, 93 eeprom programmer. Best value eeprom great deals on eeprom from global. Ch341a programmer software download jobs, employment.
Dataman 448pro2 super fast gang isp production programmer. Discover over 444 of our best selection of ch341a programmer on with topselling ch341a programmer brands. Best value eeprom great deals on eeprom from global eeprom. Documents and software related to the famous ch341a used in i2c spi flash programmers also called as bios programmers. Become a software engineer at top companies sponsored. It is possible to flash those cheap 1eur attiny85 usb dongles digispark clones with an i2c usb firmware, add some gpio expanders mcp23017 has 16 gpios, pcf8574 has 8 gpios that can be addressed over i2c, and this setup will work out of the box on most linux machines, as the i2c tinyusb kernel module is already precompiled on most distros. Ch341a 24 25 eeprom flash bios usb programmer burner. Usb to i2c interface development tools are available at mouser electronics. Zip usb driver for ch341 chip in uart mode not needed in most windows. Here i want to present results to use a very cheap usb to i2c bus chip ch341a.
Ch341a mini programmer schematic and drivers one transistor. Is there any way i can test out, interface directly with i2c. We will send to you a series of eeprom can support 24 and st, winb ind, amic, mxic, sst, spansion, eon, pmc, etc. All you need are the drivers and the asprogrammer software which can be found in the following links. Apr 15, 2018 ch341a is used by some cheap memory programmers. This is the correct driver for the serial adapter, and it includes drivers for windows 7 x64. Ch341 eeprom and spi flash programmer tosiek kodowanie. This part comes completely without any documentation. Create a project open source software business software top downloaded projects. This came from the driver cd that came with a cheap ch341 based usb to serial adapter that had numerous other drivers on the cd as well. The driver can be used with ch341a usb to uart i2c spi adapter boards to connect i2c devices to a linux host. Ch341a 24 25 series eeprom flash bios dvd usb programmer with software and driver c1b5introduce. Controling the i2c bus with autoit with the ch341 or ch341a usb chip if i only knew of the lack of documentation i wouldnt have bought the chip maybe but i wanted a simple solution to connect i2c devices to the pc. Getting started with lc ch341a usb conversion module hpaluch.
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