Table of Contents
FTDI sio
FTDI produce a range of serial devices which utilise the FTDI sio driver in Linux with various capabilities.
ECS i-Buddie USB dock
This uses an FT8U100AX USB bridge as seen in the foreground of the top right picture. This chip combines multiple functions which include serial I/O.
This device fails to operates on correctly on a USB 2.0 port and a connection to a USB 1.1 port or hub is essential.
Identity
Bus 001 Device 016: ID 0403:8372 Future Technology Devices International, Ltd FT8U100AX Serial Port
UM232R FT232R
This board is manufactured by FTDI as an FT232R evaluation kit which has an almost full break-out of the chip pins. The jumpers either select bus power or isolate the device and also allow to selection of either 3V3 or 5V I/O.
Identity
Bus 006 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Pinout
UM232R DB0 TXD 1 J1-123 24 GND DB4 DTR# CB0 DB2 RTS# CB1 VIO VCC DB1 RXD RST DB7 RI# 3V3 GND CB3 DB5 DSR# PU1 DB6 DCD# PU2 DB3 CTS# VCC CB4 J2-21 USB CB2 12 13 SLD USB SOCKET J1 1-2 VIO = 3V3 2-3 VIO = VCC (DEFAULT) J2 ON VCC = USB (DEFAULT) OFF VCC = SELF
EEPROM
sudo ft232r_prog –dump
eeprom_size = 128 vendor_id = 0x0403 product_id = 0x6001 self_powered = 0 remote_wakeup = 1 suspend_pull_downs = 0 max_bus_power = 100 mA manufacturer = FTDI product = UM232R USB <-> Serial serialnum = FT90IYOQ high_current_io = 0 load_d2xx_driver = 0 txd_inverted = 0 rxd_inverted = 0 rts_inverted = 0 cts_inverted = 0 dtr_inverted = 0 dsr_inverted = 0 dcd_inverted = 0 ri_inverted = 0 cbus[0] = RxLED cbus[1] = TxLED cbus[2] = PwrEn cbus[3] = PwrEn cbus[4] = Sleep
Clone FT232R
Devices as the one in the background of the top right picture are generally FT232R clones yet they can easily achieve 1 megabaud. 2 megabaud has also been tested but not extensively. They also support the libftdi API in Linux.
Identity
Bus 001 Device 019: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Pinout
USB SOCKET PWREN DCD TXDEN DSR SLEEP GND CTS RI 3.3V RXD 5V VIO RXLED JUMPER RTS TXLED 5V-3.3V DTR GND TXD DTR RX TX VCC CTS GND JUMPER SELECTS VIO
EEPROM
sudo ft232r_prog –dump
eeprom_size = 128 vendor_id = 0x0403 product_id = 0x6001 self_powered = 0 remote_wakeup = 1 suspend_pull_downs = 0 max_bus_power = 90 mA manufacturer = FTDI product = FT232R USB UART serialnum = A50285BI high_current_io = 0 load_d2xx_driver = 0 txd_inverted = 0 rxd_inverted = 0 rts_inverted = 0 cts_inverted = 0 dtr_inverted = 0 dsr_inverted = 0 dcd_inverted = 0 ri_inverted = 0 cbus[0] = TxLED cbus[1] = RxLED cbus[2] = TxDEN cbus[3] = PwrEn cbus[4] = Sleep
Resources
UM232R USB - Serial UART Development Module
UM232H Single Channel USB Hi-Speed FT232H Development Module