ft.close()
Search "FT_PROG FTDI" or go to ftdichip.com/utilities/ (look for "FT_PROG"). ft245rl utility software download
That’s a custom utility in 10 lines of code. | Your Goal | Download This | |-----------|----------------| | Just make the FT245RL work | VCP Driver + PuTTY | | Configure EEPROM (change USB names, invert pins) | FT_PROG | | Build a custom data logger or programmer | D2XX Driver + Python pyftdi | | Test if the chip is functioning | D2XX Examples (FT245R Test App) | You know the hardware is solid—but now you’re
If you’ve landed on this page, you’re likely holding a PCB with an FT245RL chip on it, or you’re designing a project around this popular FIFO (First-In, First-Out) USB-to-parallel bridge. You know the hardware is solid—but now you’re stuck on the software side. Conclusion The FT245RL is a fantastic chip, but
"Universal USB to parallel utilities" from third-party sites. They are almost never compatible with the FT245RL's specific FIFO timing. Conclusion The FT245RL is a fantastic chip, but its "utility software" is not a single download—it’s an ecosystem. Start with the official FTDI drivers , add FT_PROG for configuration, and then write your own simple scripts or use terminal apps for data transfer.
# Install: pip install pyftdi from pyftdi.ftdi import Ftdi import sys ft = Ftdi() ft.open_from_vid_pid(0x0403, 0x6001) # FT245RL default VID/PID Configure for asynchronous bitbang mode (optional) ft.set_bitmode(0xFF, Ftdi.BitMode.RESET) # Back to FIFO mode Write a byte to the parallel FIFO ft.write_data([0xAB]) # Sends 0xAB on D0-D7 Read a byte data = ft.read_data(1) print(f"Received: hex(data[0])")
Have a specific use case in mind (e.g., FT245RL to FPGA, or replacing a parallel printer port)? Drop a comment below—I’ll help you pick the exact software tool for the job. Disclaimer: Always download FTDI software from ftdichip.com to avoid counterfeit driver issues. FTDI has been known to brick fake chips with certain driver versions.