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

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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
60 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
43 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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1answer
55 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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1answer
59 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
67 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
29 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
64 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
56 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
62 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
307 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
69 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
38 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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0answers
64 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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0answers
20 views

FTDI Channel error when all the port are being used

I have written FTDI i2c driver for FT4232H using Python d2xx library to read a INA219 CSM's for Power Measurements. One strange behaviour seen by the driver is - 1) When I open 3 Channels as COM ...
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1answer
116 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
153 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 ...
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1answer
178 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
98 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 ...
0
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1answer
98 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, ...
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1answer
130 views

Bus and self powered device using FTDI FT230X

I'm trying to wire up my first device using an FTDI USB to Serial converter. FTDI recommends not mixing bus and self powered designs. But they also mention that it's possible in the documentation. My ...
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1answer
331 views

How do the TX/RX/CTS/RTS/DSR/DTR/DCD/RI/GND signal monitor LEDs on these odd FTDI-based USB-RS232 converters work?

While searching for a "decent" USB-RS232 converter, I turned up the following two fascinating creations which have status LEDs for all the signal lines: This concept really appeals to me from a ...
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2answers
2k views

Programming an ATMega328 with Arduino bootloader via a FTDI USB-serial adapter

I would like your advice relating to using the Arduino IDE and avrdude to program an ATmega328 which is preloaded with an Arduino bootloader. I am using a USB to TTL-serial breakout board based on an ...
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1answer
153 views

Can I use Arduino's FTDI chip for another device?

I have an Arduino UNO (R3) with its main chip and main crystal oscillator accidentally destroyed, but everything else is working I presume. I started learning PIC (16/18f) and was wondering if I ...
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3answers
220 views

Can I use a USB-FTDI TTL converter cable as a USB-TTL converter cable?

I have the need of a USB-TTL converter cable, but all I have is a USB-FTDI converter cable, that means I have two additional pins (RTS/CTS). If I do not connect RST/CTS pair, will the converter cable ...
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2answers
470 views

Debugging tool for the FTDI FT2232H in Sync FIFO mode

Does anyone know of any software available to take data from the FT2232H in 245 FIFO Sync mode and write it to screen or to a log file? Basically, I am using the FT2232H IC to transfer a large amount ...
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3answers
156 views

Do I need to program a USB-Serial FTDI chip before using?

I'm building a PCB with an ATMega chip. In the past, I've used Sparkfun's FTDI breakout board to program the ATMega. However, I'd like to implement the FTDI chip and USB port on my own PCB, ...
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0answers
129 views

FT2232H as USB to MCU UART configuration using D2XX

I'm having trouble using the FT2232H as a USB to MCU UART bridge. I was able to open the device using and set the baud rate using D2XX commands. However, I cant see any UART output in my logic ...
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2answers
274 views

Are FT2232 interfaces completely independent?

Reading through the FT2232 dual USB UART/FIFO datasheet, it is unclear to me if the two interfaces are completely independent. In other words, can I configure interface A as MPSSE and interface B as a ...
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2answers
420 views

FT2232D - Device not responding to set address

I've ordered a custom planned PCB which contains an FT2232D chip. Circuit looks like this: VCC and USB_VCC are connected on another page. GND and USB_GND are connected on another page. Datasheet ...
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2answers
190 views

Possible to use USBTinyISP as an FTDI?

So, I have an atmega328p and I need to communicate with a computer from it, so I need an FTDI. However, all I have is a USBTinyISP. Is there some way I could hack something together so that I can use ...
5
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3answers
330 views

Problem Switching Relay with Transistor from Microcontroller

This is my first time posting here, so hopefully I'm doing it correctly. I've build a circuit which uses a USB-connected FTDI-UMFT240XA. ...
0
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3answers
198 views

USB-to-Serial chips or MCU with USB support - what are the options? [closed]

I'm looking for a cheaper alternative of the FTDI chip to add USB support to an MCU, so far I like the PL-2303HX however the problem with it is there are fake copies all over the net. And I don't see ...
0
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1answer
1k views

Creating a USB to RS485 converter with FT232RL chip

I want to create a USB to RS485 converter with auto switching between transmitting and receiving the data. I found this circuit schematic on the internet. My question is, Do we have to program ...
0
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1answer
366 views

How to run Arduino-on-breadboard at 3.3V and still have USB communication to PC

I have built an Arduino on a breadboard (using an ATmega328PU) with an 5V FTDI USB controller. I want to be able to run the Arduino at 3.3V instead of 5V. It works completely at 5V supplied by the ...
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2answers
470 views

USB / Serial converter without FTDI Chip [closed]

First of all I want to mention that this question is related to my last question about USB connection. ( please note that this question is about a specific topic that my last question is not about, ...
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2answers
3k views

Arduino fio avrdude: stk500_getsync(): not in sync: resp=0x00

I have tried EVERYTHING to make this work, including replacing the board. I have an arduino fio I am attempting to upload a sketch to it (just a blink to validate it works) with an FTDI to USB cable ...
1
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1answer
301 views

NXP LPC1114 UART doesn't work after reset

I'm building a simple circuit with LPC1114 to make a "hello world" application using UART. Trying to write all the code from scratch, to have a better understanding on what's happening. My problem is ...
0
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1answer
282 views

Sparkfun Thermal Printer + FTDI Basic Board w/ C#

I'm trying to connect my laptop to a thermal printer from Sparkfun through an FTDI Basic board using C#. I've been using a .net library from: ...
3
votes
1answer
145 views

FT230X Baud Rate Aliasing

I'm using a FT230X UART, and I'd like to use it with a non-standard baud rate. I came accross this note, explaining that I have to modify the driver file, but even with this documentation I have some ...
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1answer
308 views

USB to OBD-II Converter

I want to make a scan-tool that works via a PC for my Thesis. To test it I have bought an ECU simulator (ECU-Sim 2000) with a CAN bus. I'm planning to make it using an FT232H USB to serial chip and a ...
0
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1answer
95 views

Reuse PIC serial pins

I'm building a board with a PIC microcontroller that uses the Microchip bootloader and it's connected to a FT232RL chip (USB to UART) with the RC7 and RC6 lines. Is it possibile reuse these two I/O ...
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1answer
465 views

Mass storage mode for an SD card connected to a MSP430G2553 chip?

Right now I have a program that stores values obtained from the on chip ADC to a SD card. The card is connected like the diagram shown in this PDF: http://www.ti.com/lit/an/slaa281b/slaa281b.pdf I ...
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2answers
145 views

Async FIFO master / slave

Consider an asynchronous FIFO interface (e.g. FT245, FT2232H or comparable). Since there is no clock, how do you decide who deserved to be called master? Or do you call it controller instead?
3
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3answers
870 views

What is the purpose of capacitors and resistors in this USB bus?

Trying to understand the purpose of the capacitors and resistors in this bus powered configuration for the FTDI chip, I think the capacitors are for filtering high frequency noise, not sure what the ...
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3answers
318 views

Arduino and FTDI Communications

Short Version Can I make a serial connection from an Arduino to a device with an FTDI connector? Long Version I have a wifi shield for an Arduino that is misbehaving. I know their is an FTDI ...
3
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1answer
343 views

Working with FTDI library for accessing FPGA memory

I asked a related question here. The board is Lattice MACHX02 1200 ZE. I am using FTDI Library FTCSPI to access Lattice FPGA UFM through FTDI chip FT2232H. I configured the FPGA in SPI slave by using ...
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4answers
917 views

Recommendation of a USB to RS232 chip for industrial environment

I have bought a device which has a ATMega microcontroller and a FTDI chip which connects to a computer through USB. The FTDI is used only as RS232 to USB adapter. My problem is that this device ...
2
votes
3answers
129 views

Is it possible to reduce the number of capacitors in the ft232h recommended configuration?

I'm trying to design a board as small as possible. I'm trying to minimize the number of components I need. My design is based off the self powered configuration of the FT232H chip. I've decided to ...
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2answers
457 views

Arduino with FTDI cable - USB port error

This is my first time using FTDI with Arduino. I'm using the SparkFun EL Sequencer which uses and embedded ATMega328p. I hooked it up to my USB port using this FTDI cable. When I try to upload my ...