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Questions tagged [ftdi]

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

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32 views

No data being displayed from ADC0804 in program using FT232RL

I'm attempting to read analogue voltage from a potentiometer by converting it into digital using ADC0804 and then passing the data onto y pc using FT232RL. As it stands the ADC0804 circuit is working ...
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30 views

Replace specific FTDI device driver with zadig (leaving similar devices untouched) [migrated]

I have found related questions on this topic, but not an answer to this specific question (at least none that is a solution). I use two kinds of USB/Serial Adapters on the same PC (Windows 8 / ...
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0answers
11 views

FTDI VDIP1 in Linux

I have a FTDI VDIP1-24 module. I would like to access this device under recent Debian linux distribution. My intention is to use the VDIP module as a simple digital I/O device. However on connecting ...
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1answer
45 views

FT2232 device not accepting address x, error -71

I have designed a board with an USB IC from FTDI (FT2232D). This board is bus-powered (i.e.: gets its power from the USB bus). Nothing else gets the power from the USB bus except this IC and its ...
4
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1answer
109 views

How do USB to serial adapters work?

I'd like to know how a USB to serial adapter (such as the FTDI FT232RL chip) works. The way I think it does is the following: Picture a system composed of a MCU, a USB to serial adapter and the PC ...
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1answer
50 views

Linux Drivers for FT232R [closed]

Background I am trying to build a USB Bridge circuit as part of a larger project. What I mean by that is, I wish to control a parallel out circuit based on information transmitted by the host ...
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1answer
111 views

How to switch between usb host and slave mode on a micro usb programatically?

Is it possible to program some chip that can switch between USB host and slave mode over an single micro USB cable talking to an Android device? It would be OK if there was a slight pause between ...
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1answer
75 views

Repurposing FT232 UART pins as parallel out

Background I am trying to build a USB Bridge circuit as part of a larger project. What I mean by that is, I wish to control a parallel out circuit based on information transmitted by the host ...
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0answers
69 views

OpenOCD FT2232H as SWD debugger with STM32L0 mcu

I would like to debug my MCU with OpenOCD. I run this command: openocd -f interface/ftdi/minimodule-swd.cfg -f target/stm32l0.cfg and then I get this prints from ...
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1answer
109 views

USB to I2C for a beginner [closed]

I recently ordered and CJMCU-200 FT200XD a USB to I2C and I am trying to read information from a BME280 using it's I2C output. I am new to FTDI and am having some trouble finding information on how to ...
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39 views

Programming ATMEGA328P with FTDI232 with original 1.8.1 bootloader

trying to program a custom arduino board, effectively an uno w 328P chip that plays some audio, with a particular board/bootloader, but having some issues. The wiring is fine, as mentioned below it ...
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1answer
64 views

Switching IC via FTDI232 DTR and transistor

I am trying to switch an IC on/off via the DTR signal pin on an FTDI232 USB/TTL Serial converter. Basically during the flashing of my ESP8266, I need to be able to power the IC off and then on again. ...
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1answer
66 views

Is the following USB connection possible: Host USB to converted to serial (FTDI) and then converted back to USB (FTDI)

I am trying to connect a host USB device on one board to an endpoint USB device on another board, but I am required to send the link between the two devices as a serial (UART) connection between the ...
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0answers
52 views

How to use 3.3 V FTDI Serial Cable with LeMaker Hikey 620 which has 1.8v UART signals

I have FTD Serial Cable TTL-232R-3V3 which operates on 3.3V. https://ftdi-uk.shop/collections/usb-cables-ttl/products/ttl-232r-3v3-2mm I was trying to use it on my Hikey LeMaker for an hour with no ...
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1answer
76 views

Power issue on connecting controller to FTDI programmer

Hi, I have connected my controller (ATMEGA2560) input to 5V power supply. At the VCC terminal 5V is shown. The VCC, TX,RX, RESET and GND pins are connected to a FTDI programmer port as shown in figure....
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3answers
1k views

Disadvantages of Buying Fake FTDI Chips

I was planning to buy this FT2232HL FTDI board from Aliexpress for basic FIFO applications. It is obviously fake; being cheaper than the entire chip itself and having no "FTDI" marking on top of it. ...
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1answer
122 views

STM32L0/FTDI UART Transmit doesn't work

I have STM32L053 (link to overview) and I have been using STM32CubeL0 as UART examples. Also I connected FT232RL FTDI module. Everything was fine. SIM800L and FTDI modules were working fine. Next day ...
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1answer
159 views

FTDI USB to serial communication issue

I am using an FTDI USB to Serial cable to read the startup log of a board. The FTDI cable is not reading the correct information coming from the board. Here is some of the information that I am seeing ...
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1answer
55 views

FTDI board shows only one location id on dual channel 2232H

This is a software question, but I believe people working with this board might have come across this scenario before. I have a FT2232H board that has two channels. I want to program it with an xml ...
4
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1answer
377 views

Receiver issues on STM32H7 interrupt-based SPI

I want to configure a simple interrupt-based SPI slave transmitter/receiver on a STM32H7 MCU. Even though I have quite a bit experience with the older series of STM32 ARM MCUs, it seems that a lot of ...
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1answer
183 views

Using Adafruit Trinket M0 (SAMD21) as a USB to Serial converter

I wanted to know if it is possible to use SAMD21 as a USB to Serial converter like the usual FTDI chips ? If yes could you please point how to achieve that. I believe that Adafruit Trinket was used ...
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2answers
140 views

FT230X direct interfacing with 5V uC like PIC24FV &/ PIC18

I am working on a project in which I am using PIC24FV32KA304. And I want to use FTDI FT230x usb to uart chip for communication with PC. Datasheet of FTDI chip mentions that TTL input is 5V tolerant. ...
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2answers
103 views

How to open up serial terminal for my USB device converter (or, how to enable VCP in linux)?

I am using a new Cyclone V SoC board by Enclustra (Mercury+ SA2) mounted on their PE-1 BaseBoard. To connect to the board serially on Windows platform, I have to connect the board which is detected ...
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3answers
746 views

Programming microcontroller using UART

I am trying to design a development board with a dialog micro. I am trying to remove the need for a programmer on this board. So that the user could simply plug in a usb cable and be able to ...
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1answer
82 views

FT2232H current consumption at 3.3V calculation

I would like to estimate the current consumption of the FT2232H chip and I have some unclear issues with it. In the chip's datasheet, it says the current for each voltage rail(except VCCIO). In ...
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1answer
223 views

Two FTDI devices

I have two devices which use FTDI chips to communicate with a computer. Will it be possible to communicate between them using a USB cable? For one of the devices I have complete control over the ...
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1answer
186 views

FT232HL FTDI consecutive SPI bytes delay problem

I have a problem with the FT232HL FTDI ic. Windows application send data to the chip via USB and the chip send the data out with one SPI channel. I did check with a logic analyser, the bytes are ...
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2answers
94 views

FTD232RL displays gibberish

Hello there i am using dsPIC30F4013 and i have been trying to interface uart with pic. I want to send some data to PC via uart and display it on terminal, but what i get is far from what i expect, to ...
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1answer
1k views

FTDI USB/TTL-serial converter - what are TXD, TXL, RXD and RXL?

I've got a couple of TTL USB/serial converters. I think they're FTDI chips. As well as pins marked TX and RX, there are unpopulated holes marked TXD, TXL, RXD and RXL. I've previously thought that ...
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3answers
962 views

What is a FTDI chip? How does USB communicate with Arduino?

What is a FTDI chip? Is this used in Arduino to communicate to the laptop? I think that the voltage levels are different on USB and Arduino?
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2answers
364 views

Connecting LCD Display with I2C USB Connector

I have a qapass 1602a LCD display connected to an I2C 1602 LCD Controller which is connected to a UMFT201XB I2C USB Connector which is connected to a linux box. My Question is: How and where do I get ...
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0answers
47 views

USB serial enumeration with different power source

I am working on an evaluation board that is powered off of a micro-b USB port. This also serves as a serial port (through an FTDI chip). There is a jumper that allows to choose to power the system ...
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0answers
165 views

FTDI FT_Prog keeps crashing

Anyone here using FTDI's FT_Prog? At first I wanted to re-program the E²PROM of my FT232H to use it as a JTAG device but if I click Scan and Parse the program ...
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0answers
266 views

Flashing Nordic nrf52 with FTDI

I have the nRF52832, connected via FT232RL FTDI and it fails when I try to upload a firmware file to it. I'm using PlatformIO in Atom. Following instructions at Get started with Arduino and Nordic ...
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1answer
209 views

Custom FT232 (FTDI) PCB not recognized

I am currently working on a prototype for an ESP32 retrofit for a home alarm system. I am an aspiring electrical engineer and will be attending Miami University next year. I am having trouble ...
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2answers
440 views

Help connecting custom ATMega328PB using serial FTDI

I built this ATMega328PB circuit. It runs at 3.3v from 1.5v battery using booster and 8MHz from external resonator (CSTCE8M00G52A-R0). Using USBTinyISP I set fuses: Low-FF (for 8MHz), High-D8 (Boot ...
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2answers
458 views

Make FTDI 2232D do SPI mode 1 properly? Data seems 1/2 clock cycle off

This capture by a Saleae Logic Pro 8 (v 1.2.18) shows the result of transmitting (MOSI data) 0x20 0x11. Unfortunately it is interpreted and shown as ...
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1answer
98 views

Trying to program a DSD TECH SH-A10 iBeacon with Sparkfun FTDI Basic [closed]

I ordered some fairly random iBeacon (DSD TECH SH-A10), and I didn't realize that its configuration software is Windows only (http://www.dsdtech-global.com/2017/11/dsd-tech-bluetooth-config-tool.html),...
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2answers
2k views

Configure avrdude for programming with a ft232r cable

I bought a ftdi cable with the following pins. Vcc GND RX TX RTS CTS It's possible to use this device to upload code to an ATmega328p using the avrdude utility? When I run this line on linux ...
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2answers
2k views

auto reset an Arduino using ftdi - DTR signal stays low and needs to go high after 1-50ms

Hello i have a cheap ftdi that i am going to recreate on a pcb so i can flash my ATmega2560 chip onboard, the ftdi has a DTR line which is pulled low when the sequence starts but it stays low instead ...
2
votes
1answer
900 views

Charging a mobile Tablet while communicating with a USB device at the same time [duplicate]

I have designed a product (small spectrometer) using FT234XD usb-to-uart bridge and it connects to any mobile phone via ...
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1answer
688 views

Reading data from UMFT200XD or UMFT201XB

I want to buy either an UMFT200XD-01 or an UMFT201XB-01 from FTDI. According to the datasheet of the UMFT200XD the "UMFT200XD is a USB to I2C breakout module" After I searched for a difference ...
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2answers
198 views

No Acknowledgement from slave device

I am using a FTDI's UM232H usb-i2c adapter to communicate with MAX6615 temperature monitor device and DLVR pressure sensor. I developed a I2C routine to talk to these above mentioned devices. I can ...
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2answers
132 views

FTDI's GND pin removes noise from thermistor Arduino + ESP8266

I have connected an Arduino Pro-Mini 3.3V 8MHz to an ESP8266 via I2C. The Arduino is in charge of collecting data from a thermistor (analog temperature) (T2) and a SI7021 (digital temperature) (T1). ...
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2answers
37 views

Multiple small schemes in one [duplicate]

Hello I wanted to build this serial to usb converter with ft323R, but I don't understand the small marked part on the left bottom. I found the same thing in other schematics too. I know where to ...
3
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1answer
935 views

FTDI chip returns descriptor of unknown device

I would like to debug the kernel of my nexus 5 and I sent to a fab the design for the debu cable that uses internally a FTDI chip that creates a ...
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0answers
113 views

Sending Serial Data Over FTDI causes loop

I'm trying to send and receive serial data from an atmega328 (using the arduino library) over an FTDI (FT232R) chip. I can send data to my pc and view it in a serial monitor. I can send data from my ...
3
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2answers
977 views

FT232RL does not recognized

I designed two boards that contain an FTDI chip, FT232RL. The differences between two boards rely only on USB data lines. One of the two design (Image A) does not recognize the FTDI chip. I noticed ...
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2answers
1k views

FT245RL - device descriptor read/64, error -32 on connect

I'm trying to get the FT245RL chip to work but am running into an issue where it is not successfully connecting to my computer. I also have a separate device which also uses the FT245RL chip which ...
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2answers
340 views

FTDI exchange RX/TX

I have built a PCB with an FTDI FT231X to convert UART to USB. Now RX and TX are switched by mistake. Is there a way to exchange them in the software?