FreeCalypso > hg > fc-usbser-tools
comparison doc/Shipped-EEPROM-configs @ 37:825d3303b886
doc/Shipped-EEPROM-configs: new article
| author | Mychaela Falconia <falcon@freecalypso.org> |
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| date | Sun, 10 Sep 2023 05:19:50 +0000 |
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| 36:3794ad47a97f | 37:825d3303b886 |
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| 1 There are a number of ready-made FTDI EEPROM config files shipped with | |
| 2 fc-usbser-tools package, intended to serve as inputs to ftee-gen* tools. This | |
| 3 article describes these shipped EEPROM configs. | |
| 4 | |
| 5 duart28c and duart28s | |
| 6 ===================== | |
| 7 | |
| 8 FreeCalypso DUART28 is an FT2232D-based custom hardware adapter produced in | |
| 9 year 2020. There are two valid EEPROM configs for this adapter, named DUART28C | |
| 10 and DUART28S - see DUART28-EEPROM-config article for further details. | |
| 11 | |
| 12 ft2232-example | |
| 13 ============== | |
| 14 | |
| 15 This config file is an example EEPROM config for FT2232x chips, valid for both | |
| 16 FT2232C/D and FT2232H. It is intended to serve as a starting point for custom | |
| 17 FT2232x EEPROM configurations. | |
| 18 | |
| 19 ft232r-example | |
| 20 ============== | |
| 21 | |
| 22 This config file is an example EEPROM config for FT232R. It is intended to | |
| 23 serve as a starting point for custom FT232R EEPROM configs. | |
| 24 | |
| 25 icestick | |
| 26 ======== | |
| 27 | |
| 28 Lattice iCEstick is a handy FPGA board with an FT2232H USB interface chip, | |
| 29 supporting SPI programming via MPSSE on Channel A and UART communication with | |
| 30 user logic via FT2232H Channel B. However, instead of programming this FT2232H | |
| 31 chip's EEPROM with a distinctive USB VID:PID which Linux kernel ftdi_sio driver | |
| 32 can recognize as a JTAG quirk, Lattice ships these boards with blank EEPROMs, | |
| 33 causing the usual well-known problems with unquirked ftdi_sio binding. | |
| 34 | |
| 35 Our supplied EEPROM config named "icestick" is intended as the solution: | |
| 36 program it into the EEPROM on your iCEstick board, and the binding of ftdi_sio | |
| 37 driver becomes sensible, with a ttyUSB device created only for Channel B. | |
| 38 | |
| 39 jtag-unbuf | |
| 40 ========== | |
| 41 | |
| 42 This EEPROM config is meant for generic (non-specialized) FT2232D breakout | |
| 43 boards used as unbuffered JTAG adapters, as described in this old guide | |
| 44 from 2019: | |
| 45 | |
| 46 https://www.freecalypso.org/hg/freecalypso-hwlab/file/tip/doc/Unbuffered-FT2232x-JTAG | |
| 47 | |
| 48 mcu-host-bus | |
| 49 ============ | |
| 50 | |
| 51 This EEPROM config is meant for the same generic FT2232D breakout boards used | |
| 52 in MCU host bus emulation mode, which takes up both channels and leaves no UART. |