Questions tagged [ftdi]

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

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1answer
56 views

FTDI using non-standard baudrate [on hold]

I'm doing some testing on a custom made USB to serial convertor based on FTDI232RQ which operates on 3MHz and MAX130 Transceiver IC. I'm using a program using Linux to send ASCII values and files to ...
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1answer
50 views

PIC16F676 interacting with FT232 hookup

I am hooking up a PIC16F676 to FT232. I already have power hooked and also OSC with 20 MHz and 22pF capacitor. I am still trying to figure out the proper way to hook up the data/serial or something ...
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0answers
35 views

Serial communication for Arduino Mega with RS485 and FTDI using the same TX data line

I need help with the following problem. I have an Arduino Mega in which I connect several devices that occupy the 4 TX and RX ports that this Arduino has. I need to connect an RS485 to the Arduino and ...
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2answers
49 views

RS422 Receiver Not Reporting Errors When Too Few Stop Bits

I am interfacing with a device (the transmitter) which configures its serial settings to 8 data bits, no parity, 1 stop bit at a baud rate of 115200. These are known values and fixed values I can't ...
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0answers
38 views

USB HID Keyboard Usage Id to ASCII

I am working on a project that will convert a USB HID Keyboard output to RS232. So far, I have a FTDI Vinculum II to host the USB Keyboard and it outputs the USB HID Usage ID (format seen under USB ...
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29 views

Openocd FTDI “Error: DP initialisation failed”, …missing some finetuning?

I am trying to connect CEC1702 (ARM Cortex M4F) to SWD port of FT2232H. My adapter script: ...
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0answers
54 views

FTDI Chip Windows Error Message “USB device attached malfunctioned and windows does not recognize.” Design Error?

My PCB has a FT230XS-R USB to UART communicating with an AVR chip. My first prototype board worked perfectly except for the USB problem stated in post title. I triple checked everything. Can NOT find ...
2
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1answer
62 views

ADC signal close to D+/D- signals layout suggestion

My circuit is laid out in way so that the analog front end is on a different pcb than the MCU board. The two PCBs are connected with a vertical connector of which 4 pins are used to transfer two low ...
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1answer
74 views

Is it possible to connect D- and D+ to an existing USB to FTDI connection?

This maybe a noob question. I already have an ftdi connection on my board, using an FT232 RL connected to a micro USB. But, the pic i'm using PIC32MX470F512L has D- and D+ for USB interface. Can i ...
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0answers
47 views

Is the regulator doing short circuit after enable?

Is it my circuit/PCB doing a short circuit after enabling the regulator? See image. (I checked the connection physically and is fine.) I don't understand why after enabling the regulator using the ...
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0answers
41 views

Max baudrate of FT2232H in synchronous FIFO mode

In datasheet at FT2232H chip: The FT2232H has the following advanced functions: ... Single channel synchronous FIFO mode for transfers upto 40 Mbytes/Sec. ... I configure device ...
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1answer
63 views

Can the FTDI Tx and Rx tension level be different that it's VCC?

I'm building my own FT232RL to convert a UART signal to USB. The source of power will be the USB 5V, but for reasons of the circuit i already have it would be easier to let more of the circuit keep ...
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1answer
72 views

Remove time gaps before chip select disabled on FTDI

When using FTDI FT2232H in SPI mode, there are relative short time gaps (~2 ms) between positions where clocks are stopped and chip select is disabled. But if data transmission have high speed rate, ...
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4answers
2k views

Is using the CH340G on a commercial product a horrible idea? [closed]

I'm developing a niche product that will be produced at a fairly low volume (low hundreds). I'm using an Atmega uC, and one of the requirements is the ability to be field-flashable by the user. My ...
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0answers
40 views

Reliable methods to read data off a flash chip?

I'm trying to read data off of flash chips on a variety of embedded devices I have, and I'm currently using an FTDI FT2232H and flashrom (with soic-8 clips and probes) to extract the data as they are ...
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1answer
73 views

Duplicate a FTDI FT232R usb->serial cable

I communicate with a serial device using a FTDI FT232R usb -> serial cable created by the manufacturer of the device. Everything is ok I can communicate with the device. Now I have another cable, ...
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0answers
57 views

FT230 Schematic [duplicate]

It might be an easy thing, but I don't understand the following setup: There is the Pin 3V3OUT that acts as source. But at the same time, the pin is connected to the 3.3V source as well. I recreated ...
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100 views

Programming ESP32 Microcontroller with FTDI's FT231XS USB Chip

Purchased FTDI's FT231XS from DigiKey I can see data from the ESP32 microcontroller but when I try to write to it, esptool just says connecting and nothing happens. I can use a usb to serial cable to ...
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2answers
54 views

How can I center a servo using the FT311D?

I've got a servo which requires a 50Hz signal (which can be achieved with a 20ms period) and a 1ms-2ms dutycycle. This is your standard hobby servo. 1ms dutycyle makes it go left (0 degrees) 1.5ms ...
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0answers
41 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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1answer
26 views

FTDI VDIP1 in Linux [on hold]

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
77 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
123 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
133 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
659 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
84 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
137 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
139 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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0answers
67 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 ...
1
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1answer
95 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. ...
1
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1answer
74 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
60 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
87 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
159 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 ...
1
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1answer
240 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 ...
0
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1answer
76 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
563 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 ...
-2
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1answer
269 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
202 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. ...
2
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2answers
155 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
1k 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 ...
0
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1answer
101 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 ...
0
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1answer
292 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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2answers
343 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
101 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
2k 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
2k 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?
0
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2answers
446 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 ...
0
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0answers
51 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 ...