These digikey cables do not explicitly mention that they have FT232H chip, also they cost $23.5 minimum while aliexpress board costs $7 - 3x times less expensive
On Mon, Mar 5, 2018 at 7:06 PM, Vadim Bendebury <[email protected]> wrote: > 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 > > -- coreboot mailing list: [email protected] https://mail.coreboot.org/mailman/listinfo/coreboot
