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

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Is there any FTDI based USB to serial converter that can be used as avr (without boot loader) programmer? [duplicate]

I need an usb to serial converter which can act as an actual serial port. This would let me program avr microcontroller without boot loader. I heard Bit bang mode in FTDI might allow this. Does it? ...
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1answer
29 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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28 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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41 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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60 views

No comunication beetwen Personal computer and ftdi2232d

I would interface my computer with both FTDI 2232d (master) and ADC (slave). I see the AN255 and I wrote my program application in visual basic. I'm able to open device and send some codes ...
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16 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
71 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
141 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
129 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
67 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
83 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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85 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
190 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
862 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
133 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
154 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
366 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
134 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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107 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
244 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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339 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
161 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 ...
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3answers
298 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. ...
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3answers
167 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 ...
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869 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 ...
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1answer
294 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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420 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
2k 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 ...
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1answer
274 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 ...
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262 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: ...
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1answer
135 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
292 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 ...
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1answer
91 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
423 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
129 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?
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3answers
708 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
295 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 ...
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1answer
327 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
846 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 ...
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3answers
125 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
427 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 ...
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1answer
238 views

Communicating by RS-232

I'm trying to communicate with a serial barcode scanner. This is how i've linked it to my computer (the circles represent the color of the wires already soldered in the serial plug) : When I scan a ...
2
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3answers
428 views

FT230X 3V3OUT pin connected to 3.6V, Safe?

The FTDI ft230X datasheet states that, for the output pin of the internal LDO: When VCC is 3V3; pin 8 is an input pin and should be connected to pin 10. page 7. Meaning that 3V3OUT of the ...
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2answers
624 views

Would this USB detection circuit work as expected?

What I am trying to achieve is detect from MCU, whenever FTDI(FT232R) chip is connected to USB(not enumerated, just powered up from USB). When ONLY USB is connected, MCU will get his power supply ...
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1answer
375 views

Separating USB/MCU power buses

There are two power supply sources in the following diagram - USB and 12V. Only one power supply can be connected at the same time. I am trying to disable power to ...
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1answer
305 views

FTDI/MCU design question to detect boot mode

MCU(ATMega 8 series) on my device has two operating modes Bootloader mode Normal operation The firmware can be upgraded through MCU USART interface. To connect to PC I want to place ...
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1answer
378 views

FT232 DTR pin behavior

The question is whether DTR pin of FT232RL becomes active only if the chip is plugged into PC USB host where drivers are ...
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1answer
295 views

What is state of port B when port A of FT2232H is in sync. FT245 mode?

I am designing Spartan 6 dev board with FT2232H interface, and I would like to use FT2232H to program AT45 flash with bitstream and then switch FTDI to FT245 mode and use 60MHz clock of 2232H as main ...
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2answers
215 views

Application of buffer chip in serial communication

On a microcontroller board that I am working on, there is a buffer chip between the microcontroller TI msp430 F1611 and USB interface ...
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1answer
665 views

Does transmitting break over FTDI chipset yield a binary 0 received on the receiving end?

I send breaks (using Tx) over FTDI FT232R chipset using two ways: ...