FTDI is the manufacturer of (a.o.) a popular UART to USB bridge.

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FT230XS USB Bridge not working

I designed a small board that needed the capability of communicating over USART, so I threw in an FT230XS USB|USART Bridge. The device use is so simple that I am out of ideas for troubleshooting. ...
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1answer
17 views

Can FTDI Basic Breakout and FTDI XBee Explorer USB be used alternatively?

I wonder if these two boards from sparkfun can be used alternatively for USB to Serial communication? The first: (FTDI Basic Breakout) https://www.sparkfun.com/products/9716 The second: (FTDI XBee ...
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63 views

FTDI chip based board not detected

I have a problem very similar to the one in this question.I have used an FT2232H chip. When I connect my board to the PC, using USB, I get a message that says "USB device not recognised". I use ...
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3answers
89 views

What is the maximum number of bytes that can be sent through USB-to-serial COM port at one go?

Suppose someone uses hyper-terminal to send a very long ASCII string at a COM port. This COM port is created by FTDI USB-to-serial port cable. The cable used is ...
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1answer
46 views

FT232RL TX/RX Direction

I want to basically embed an FTDI cable in my board to avoid confusion with the RX/TX pins, wrong cable, etc. I really want to make sure I choose the direction correctly though. I have ...
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2answers
92 views

FTDI UART programming (first steps)

Im currently trying to leave the arduino board aside and starting program microcontrollers on pcb boards via programming pins, im using an ATMEGA328u from this premade board, For starters im trying to ...
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1answer
39 views

FTDI disappears when powering circuit with it.

I'm trying to us the ESP8266 wifi board and when I power it over the 3.3v out on the FTDI the entire usb disappears from ubuntu. as soon as I take the power away it shows back up again. What could ...
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123 views

FTDI UM232H module not showing in FT Prog

I'm trying to configure a FTDI UM232H breakout module as a FT245 style synchronous interface using FTDI's FT Prog utility. The module is sitting on a breadboard in a bus-powered configuration (J1-2 ...
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1answer
82 views

Why does the Tx pin of an USB to TTL adapter provide current?

I'm currently making a little electronic board on my own. On it, a microcontroller: an ATmega328p running with 5V. To communicate with a computer, I've planned to use an XBee, but for now I'm using ...
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56 views

How to connect a TVS to protect the data lines in a USB device port?

TVS is a good practice to protect USB ports. A USB (at least 2.0) connection has the power path supplied with a 5 V source (Vbus=5V0) at the host side and the data path supplied with a 3.3 V sources ...
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1answer
103 views

Is FT232R/245R eeprom write-protectable?

FT232R and FT245R have embedded EEPROM. Does a known way to protect the content of this eeprom against re-writing exist? (Any solutions, including unofficial and hacks, are welcome.)
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2answers
217 views

Programming PIC from USB usign FT232

I have a PIC18F1330 which does not have native USB capabilities (see datasheet). I am planning to load it with a bootloader using my PICkit the first time and then programming from a USB port after ...
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2answers
1k views

Gibberish output from an ESP8622 WiFi module

Recently I've got myself a couple of ESP8266 modules. I flashed the latest NodeMCU firmware, and tried to communicate with a PC using UART. Here's how I wired my circuit: Using a simple USB to ...
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1answer
119 views

Convert FT232RL board from 5V to 3.3V

I have a couple of these FT232RL breakout boards direct from China, look like they are Folger boards. I measured the voltage between Vcc and GND, and it's 5V from the factory. It has 3.3V pad on the ...
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1answer
203 views

Additional TX and RX pins for FT232RL Microcontroller Interface

I'm designing a board that needs to be programmable via USB and external TX/RX pins. I decided to use FT232RL ( http://www.sparkfun.com/datasheets/DevTools/Arduino/FTDI%20Basic-v21-5V.pdf ) for the ...
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1answer
201 views

FTDI ft232rl 3.3V logic interfacing PIC microcontroller

I want to interface a ft232 with PIC16F73. I am using the circuit below: VCCIO is connected with VCC which is 5V. Then I think all logics from TXD,RXD will be 5V, isn't it? If I connect VCCIO with ...
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2answers
126 views

Garbled serial output from breadboard ATmega328 via FTDI breakout

I have an ATmega328P-PU on a breadboard, and I am trying to get serial communications working through one of these bad boys: The 328P is loaded with a modified blink sketch that just does a ...
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0answers
64 views

FTDI2232d + TM4C1294 configurations

I posted this question before, but I am still struggling with this. I captured a schematic and others in this time so it should be more clear to see what's going on. I was given a custom board ...
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1answer
94 views

How does the ft2232h read/write work in cpu-style FIFO interface mode?

I'm thinking of making the following circuitry: PC <-> Ft2232h <-> MCU (I'm using the MCU just for an initial test to see if I can get the ft2232 working. An FPGA will be used later) Have I ...
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0answers
116 views

Android fails to detect FTDI device

This question is similar to this but resolution of that one does not help for my problem (I have TEST pin of FTDI chip already connected to GND). I want to connect FT232R chip to android phone. I ...
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3answers
89 views

FTDI chip based custom board. Driver not working

I designed a board containing a USB to UART bridge in order to program a ATmega microcontroller. I copied the schematic of this breakout board from Sparkfun https://www.sparkfun.com/products/9716 ...
2
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1answer
142 views

Android fails to detect FTDI chip

I want to connect FT232R chip to android phone. I have downloaded FTDI terminal for android from https://play.google.com/store/apps/details?id=com.ftdi.j2xx.hyperterm FTDI program has to ...
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1answer
136 views

Powering circuit from PC's USB port

I am working on a circuit connected to computer with FTDI FT232RL. The circuit have got some op-amps and one MCU. Total power consumption (including FTDI chip) is near by 80 mA /h (at 5V). My ...
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0answers
1k views

Turn Nano with CH340G(16 pin) chip into a USB to Serial converter (TX not working)

I am trying to convert a CH340G Bases Arduino Nano into a serial converter with 50% luck. It is able to receive data on the serial side but the USB to to serial bit is not sending data out. (Validated ...
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2answers
407 views

FTDI (FT232RL) powers itself through RX/TX lines [duplicate]

I have an FT232RL connected to an AVR Atmega2184P (running the Arduino core) UART. The microcontroller has two power supplies - a LiPo battery (VBat), and USB power (Vin). The way I've designed the ...
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0answers
87 views

Problem with connecting Arduino nrf8002 to PC using FTDI board

According to a tutorial ( http://www.jayconsystems.com/tutorial/nrf8002_ble/ ) I'm trying to connect nrf8002 device to my PC to setup the settings using nrf Studio software. So first I connected the ...
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1answer
229 views

FT232RL VCCIO Configuration

I want to make a 3.3V I/O (UART) interface between a FT232RL and AVR which operate at 3.3V For this configuration responsible it's VCCIO and must be connected to 3.3V supply. But what about VCC? Can ...
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2answers
121 views

Can I use an Adafruit Trinket as a simple Android peripheral?

I want to control the standby state of an LCD panel through an android media PC. I'm thinking of using a Trinket as a cheap android USB peripheral. Is this possible? Or should I be looking at an FTDI ...
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2answers
120 views

FTDI cables confusion

I went to the store and asked for a FTDI cable however, I need a bit of assistance, apparently I didn't properly do my homework before shopping and I ended up with upper pic. I need an FTDI cable to ...
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1answer
407 views

NAND Flash reader using FTDI

I'm trying to read data off a Hynix NAND Flash chip. Ive soldered the NAND Flash onto a break out board and connected it to my FT2232H FTDI. I'm using the following software to read the NAND Flash: ...
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1answer
130 views

Connecting FT2232H board (60 MHz via 2.54 mm header) to FPGA board

I am trying to connect FT2232H breakout board (http://www.digikey.com/catalog/en/partgroup/ft2232h-evaluation-board-ft2232h-mini-module/15377) to DE0-Nano FPGA board ...
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1answer
784 views

50 MHz FPGA (Cyclone IV @ DE0-Nano) and 60 MHz input from FT2232H

I want to read data from FT2232H used in an FT245 style synchronous FIFO mode (http://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT2232H.pdf p.27) with DE0-Nano FPGA board: ...
2
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1answer
134 views

AVR external crystal not working with UART

So I have an ATmega328P with a 14.7456MHz external crystal, full-swing settings, and I'm trying to talk to my mac via UART and an FTDI friend-type device. If I connect AVR Tx to AVR Rx, then all ...
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1answer
161 views

How to get 32u4 arduino to ignore DTR for USB Serial?

32u4 based "USB Serial Ports" refuse to send data to the PC unless DTR on the PC software side is set to high. If the PC software does not set DTR to true (high?), then Serial.print() on Arduino goes ...
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2answers
167 views

Convert FTDI USB signal back to serial

I have a data logger with a USB output (FTDI FT232RL) and I'm trying to get the information remotely using a XBee modem, but my problem is that I need to "convert" the USB signal back to serial to ...
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2answers
437 views

RS485 network failing on replacing SP485 chip with MAX485

I have created an RS485 communication network as shown below. {PC}->[FT232->RS485](120 ohm)<----twisted pair(2 wires)------>(120 ohm)[RS485 -> MSP430] Here PC acts as Master and sends the data ...
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2answers
286 views

Event using FTD2XX_NET.dll

I am using a FT232RL chip with FTD2XX_NET.dll I've made a program which writes and reads data to/from AVR atmega32 mcu. First writes data, then reads data as answer. Now, i want to make an event ...
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1answer
92 views

Is it possible to connect FT2232D's 3V3OUT pin to VCCIO for USB-JTAG programming?

I want to design a USB-JTAG Programmer with FT2232D. And I want to program Xilinx spartan3 FPGA with it, so I need 3.3 volt logic for VCCIO. Datasheet indicates that FT2232D has an internal regulator ...
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1answer
334 views

FTDI chip (FT2232D) malfunction

I'd designed a USB-JTAG Programmer with FT2232D. I programmed Xilinx spartan3 FPGA 2 times yesterday and everything was perfect. But today when I connect it to my laptop I see the following message: ...
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1answer
127 views

FTDI communication speed

How can I get very high speed from a FTDI chip? I have tried with FT232RL with UART in 230.4kbps but I want much more than this. Will I need some other different speed?
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1answer
163 views

What's the easiest way to get fast USB serial communications?

What's the easiest way to get fast USB serial communications from an Atmel SAM microcontroller? I consider fast to be faster than 1 Mb/s. In my previous projects I've used an FTDI module, but I've ...
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2answers
899 views

Why FTDI and not AVR with built-in USB controller?

I made a simple program in Visual C# which communicates with AVR via FT232RL chip. PC <-> FTDI <-> MCU. I am using FTD2XX_NET.dll for direct access to USB Device. I'm wondering, what's the ...
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1answer
332 views

UM232H-B Breakout Module as a parallel port

I want to build something like UM232H-B Breakout Module. This configuration uses an FT232H, to convert usb to serial/parallel. I don't know whether it works with FPGA parallel port programming cable ...
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0answers
121 views

Parallel Write On External Clock on STM32

I am using 8 GPIO pins on an STM32F407 for a parallel write to an external device (FT232H). The parallel write is synchronous, ie. I have to synchronize my data to a clock provided. According to the ...
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2answers
284 views

windows can't recognize my lattice machxo2 board

I purchased a MACHXO2 - 1200ze evaluation board a few days ago. I started with designing and programming simple projects as blinking leds, which worked perfectly. After that at the same day I tried ...
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1answer
422 views

does Tera Term handle software flow control internally? [closed]

The title may be a little confusing but i'll explain the situation: We have the following situation: ARM MCU -> UART -> FTDI chip -> USB -> PC -> Tera Term terminal The FTDI chip has built-in hard- ...
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2answers
310 views

How device drivers work

Can anyone explain how device drivers work? I have seen Arduino and other development boards communicating with the PC's USB port with the help of a FTDI chip. This thing can be made to work after we ...
2
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1answer
643 views

Why does FTDI RS485 signal look wrong?

I have an in-house board with a microcontroller (Microchip dsPIC33E) and an RS485 driver (Analog Devices ADM2587E) that I'm trying to connect to a desktop PC using an FTDI (USB-RS485-WE-1800-BT) USB ...
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1answer
451 views

USB to Serial cable and VCC current output [closed]

I have question about generic USB TTL Serial cables, FTDI FT232R-based. The cables differ in voltage, 5V, 3.3V and output current. USB TTL Serial Cables I need a cable for a USB to serial ...
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1answer
166 views

Connecting to pins on USB to Serial module (contains FT232RL chip)

I have this module: My question pertains specifically to the RX and TX pins shown (sorry for having it upside down, only way I could make it look clear.) I don't understand why there are 4 pins, ...