Did you consider one of these: https://www.digikey.com/products/en/cable-assemblies/smart-cables/468?k=ftdi+uart&k=&pkeyword=ftdi+uart&pv493=316&FV=ffe001d4&quantity=0&ColumnSort=0&page=1&pageSize=25
there are many options, it is important to match the cable's VDD to your board's (1.8V vs 3.3V), the rest of the parameters is way less important. -vb On Sat, Mar 3, 2018 at 5:27 AM, Mike Banon <[email protected]> wrote: > Good day! I am looking for the dirt cheap EHCI debug dongle. Initially > I found these instructions for FX2LP - > https://www.coreboot.org/DIY_EHCI_debug_dongle - but they require a > lot of manual soldering/mods which depend on your boards revision and > I am not sure if the currently produced boards are 100% compatible > with the wiki instructions > > But then I noticed a coreboot has USBDEBUG_DONGLE_FTDI_FT232H option: > " Use this with FT232H usb-to-uart. Configuration is hard-coded to use > 8n1, no flow control " > > Kyösti Mälkki tested it " with gizmosphere/gizmo1 Explorer add-on > board, which exposes the following device: > 0x0403 Future Technology Devices International, Ltd > 0x6014 FT232H Single HS USB-UART/FIFO IC " > but gizmo1 is expensive and I am not a fan of the single board > computers (SBCs) : they all require the binary blobs which could > contain the scary backdoors > > However, there are $7 cheap FT232H boards with USB available at AliExpress: > > https://www.aliexpress.com/item/NEW-CJMCU-FT232H- > Multifunction-High-Speed-USB-to-JTAG-UART-FIFO-SPI-I2C- > Module/32818305310.html > > I plan to get a couple of these boards, connect them to each other > with 1P 2.54mm wires, plug the 1st board into master PC > (coreboot-PC-under-debug) USB 2.0 port and the 2nd board into slave PC > (another coreboot PC which will be logging the debug info) > > Please tell me: could this setup work in theory, or there are obvious > shortcomings that could prevent it from working? > > Best regards, > Mike Banon > > -- > coreboot mailing list: [email protected] > https://mail.coreboot.org/mailman/listinfo/coreboot
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