UMFT12XEV FTDI, UMFT12XEV Datasheet - Page 23

• Manufacturer Part Number: UMFT12XEV
• Description: Interface Development Tools MAIN BOARD FOR EVAL FT120, FT121, FT122
• Manufacturer: FTDI
• Type: USB Controllersr

Specifications of UMFT12XEV

• Rohs: yes
• Product: Evaluation Boards
• Tool Is For Evaluation Of: FT120, FT121, FT122
• Interface Type: SPI, UART
• Operating Supply Voltage: 5 V
• Description/function: Main board for evaluating FT120, FT121 and FT122 add-on modules

7
The firmware for the on-board microcontroller LPC1114 can be upgraded through either UART (ISP mode)
or JTAG/SWD interface. This section will describe the steps on how to download the firmware through
ISP mode. For the usage of JTAG/SWD interface with LPC-Link debug module, please refer to NXP
LPCXpresso homepage at http://ics.nxp.com/lpcxpresso/. Note that the LPCXpresso is an integrated
development platform for firmware development, debug and download for NXP’s ARM-based LPC
microcontrollers. The LPCXpresso development tool chain can be downloaded from
http://lpcxpresso.code-red-tech.com/LPCXpresso/
Check the FTDI website for the available pre-compiled firmware for FT12x Evaluation Kit (
http://www.ftdichip.com/Firmware/Precompiled.htm
7.1
7.2
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Figure 7-1 Plug in micro USB cable
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Firmware Upgrade Process
Put LPC1114 microcontroller in ISP mode
Connect the TTL-232R-3V3 cable
Use a jumper wire to short pad 38 of J1 to pad 1 or pad 54 of J1. This is to connect the LPC1114
P0_1 pin to GND so that LPC1114 will enter ISP mode after power on or reset.
Connect the board to the test PC via the micro-USB cable. The USB–A plug shall be inserted in
the PC USB port, while the micro-USB-B plug shall be connected to the daughter card USB port.
The board will be powered on with the LPC1114 entering ISP mode. Note for self power
configuration the daughter card is not required to be present for firmware upgrading. For bus
power configuration the daughter card is required as the power comes from the daughter card
USB port.
Connect the board to the test PC using a TTL-232R-3V3 cable. Plug the 6-pin socket of the cable
into the CN2 pin header. Please note the direction of the cable, the black wire (GND) should be
plugged in to pin 1 of CN2.
Connect the other end of the TTL-232R-3V3 cable to a USB port of the test PC
Copyright © 2012 Future Technology Devices International Limited
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Document Reference No.: FT_000728
FT12 Series Evaluation Kit Datasheet
Clearance No.: FTDI#
Version
23
314
1.0