- Pl-2303 Eeprom Writer Tool
- Pl2303 Eeprom Writer App
- Prolific Pl2303 Eeprom Writer
- Pl2303 Eeprom Writer Tool
Taipei Headquarter 7F, No.48, Sec. 3, Nan Kang Rd., Nan Kang, Taipei, Taiwan 115, R.O.C. Tel: +886-2-2654-6363 / Fax: +886-2-2654-6161 / Website: www.prolific.com.tw. The EEPROM writer (1.0.0.3) uses the PL-2303 to write USB descriptors to an external EEPROM. You might not have an EEPROM connected to the PL-2303. I know my USB to serial adapter doesn't have one. Spellforce 3 soul harvest walkthrough. Below is a screenshot of the EEPROM writer after pressing the read button on the non-modified usb modem. Just change PID to 2303 and write everything back. You can find a copy of the tool in the.
the same. '1' I would like to reprogram them to be a unique serial number so I can plug in many into a machine to dedicate
to a given task. Since each is the same you have no guarantee which one gets plumbed to a given dev device. Class paths
also keep getting rotated on us as well. The only solution is to change the serial numbers to make each unique. Then I can use udev rules to map a specific one to a specific dev device.
Please let me know if I can download this program somewhere. SEE URL for mention of EEPROM EEWRITER program needed
http://www.adafruit.com/datasheets/DS_P .. 120504.pdfProjects / Misc 8-bit uC projectsOriginal post date: 03/03/2017
I put together a quick and dirty breakout board for the STM8F003 with PL2303 USB serial chip. Normally not a big fan of doing serial I/O, but V-USB for the STM8 not working. My big tube of fake PL2302 isn't going anywhere.
It might be useful for playing with external SPI or I2C chips. The nice thing about the STM8 is that the memory space is unified, so I could download small firmware to RAM and run native code there for time sensitive I/O.
As usual, I like to procrastinate a bit before sending it out. With snail mail delivery, the extra weekend won't make a difference.
Did some changes.
General clean up, RefDes, and Values etc
added I2C EEPOM for USB Serial # which would help the PC use the same COM port - not sure if it works for the fake chip.
added pull up for PB4, PB5 (I2C true open drain) with solder blob selected to 3.3 (default) or 5V.
Pl-2303 Eeprom Writer Tool
PCB working now.
Github: https://github.com/FPGA-Computer/STM8F003-Development-board
Pl2303 Eeprom Writer App
The EEPROM for the PL2303 clone also works. I programmed in a serial number for it using their EEPROm Writer util.
Top: EEPROM not programmed. Bottom: EEPROM programmed with serial number.
Windows associates the COM port assignment with the serial number and would recognize the card even if I plug it into a different USB port. Too bad the tool doesn't allow for text string as serial number.
I made a 3-pin version of my press fit programming header. There are 4 pins on it just because I want to reuse my SWD cable for ARM chips.
It is working. It is a consolidation of what I have.
The STM8S UART1 has an upper limit of 1Mbps. I tried to find out where such a limitation exists besides the obvious 16X oversampling/synchronization and what was said in the feature list.
The smallest divider that is allowed is 0x0010 which will result in BRR1 = 0x01. 16MHz/16 = 1Mbps.
I played around with the PL2303 clone and it can send data at 1/2/4 Mbps. Tera Term is more than happy to accept typed in rates.
Xmodem was a popular serial protocol back in the days of BBS. It is a very attractive protocol for embedded system when you need to move/stream a lot of binary data. It is a built-in file transfer protocol for terminal programs, so no need to roll your own which is the whole point of text interface. (If I have to roll my own, I would be using a GUI with USB Custom Vendor class packets and not serial.)
Prolific Pl2303 Eeprom Writer
Some of its inefficiency actually helps make life easier:
Pl2303 Eeprom Writer Tool
- It transfer a small block of data: 128 byte. This reduces the amount of buffer memory. This also easily fits in the buffer inside the PL2303 (256 byte Rx buffer), so no handshaking is required.
- It transfer a single packet at a time until an ACK/NACK is sent from the receiver and this gives lot of time for the embedded system for processing.
- Simple checksum. Communication error is not an issue on this PCB as the traces are very short ~0.28' (7mm). The USB packets has 16-bit CRC to give additional protection.
At 16MHz and 1Mbps, there are 160 cycles between incoming data. There are plenty of cycles left over even after interrupt driven serial code.