Questions tagged [ftdi]

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

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FT232R custom eeprom - D2XX

trying to figure out how to read full EEPROM dump and flash it back without using any templates, M Prog and FT Prog. Need a way to utilize extra space on eeprom for authenticating cables. Basically ...
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3 votes
1 answer
67 views

Extract a 6 pin connector pinout with serial protocol

I have an intercom display, Elvox 5721, and I'd like to program it with its software, called "saveprog". It has a 6 pin programming connector which requires Elvox's cable which is called ...
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Programing the ESP32 with FTDI cable

I bought FTDI’s TTL-232R-3V3 to USB Serial Converter cable to program my ESP32 board When I decided to put the flip flop circuit to connect ESP32 reset & boot0 pins to DTR & RTS pin, I ...
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FT231XS FTDI USB UART self-powered circuit

I haven't been able to find a full example of a self-powered FT231XS circuit. I was hoping to get feedback on what I have put together from studying the datasheet (any glaring issues?): 3v3_RUN is my ...
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Using CH3330N IC instead of FTDI to program Microcontroller?

So, I want to program a Atmega328p Microcontroller. Instead of using a FTDI module to convert USB to Serial, I was looking for some better and smaller alternatives. I found this really small IC with ...
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AZDelivery Serial Adapter FT232RL and ESP32 board

I've just purchased an AZDelivery Serial Adapter FT232RL from USB to TTL to program an ESP-WROOM-32 board. I'm very confused about which connections are needed. Actually, I've connected TX2 (on ESP32 ...
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FTDI Debugger Load Switching

I’m developing a new version of a custom debugger board for my project. The debug target is a solar powered device, which means sometimes I want to power it from the host (debugger) and sometimes I ...
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Can I download my code from Keil uVision5 or STM32CubeIDE to the STM32F103C6T6 board via FTDI?

Can I download my code from Keil uVision5 or STM32CubeIDE to the STM32F103C6T6 board via FTDI? If yes, then how should I do it? I can't find anything that helps online. If there is no method to do so ...
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UART printing gibberish to the terminal when the STLink Debugger is not connected

Custom board, not an ST development board. MCU: STM32G031J6M6 SO8 package. UART RX/TX are Pins 1 and 8 respectively. Pin 8 is also SWDCLK Pin 7 is SWDIO and not used except for SWD NRST is Pin 4 and ...
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FTDI connection: FT4232HL

I'm working on a PCB Design where is needed flashing EEPROM. At the beginning, I wanted to add FTDI FT4232HL on my design, but I have thought it after and maybe is better option to use a FTDI flasher ...
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FTDI cable (TTL-232R-3V3) mixed up wires [closed]

At the beginning of the measuring task, I mixed up wires connecting my FTDI USB to UART cable (TTL-232R-3V3) with serial connector header pins (TX/RX/VCC/Gnd) on device (data modem). I didn't ...
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Switching from FIFO mode to UART VCP on FT2232H

I'm working on a device that has an FT2232H on it with EEPROM. The EEPROM is programmed so that when the device boots, the FTDI chip will be configured into FIFO mode. However, I wish to also use the ...
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2 votes
1 answer
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FTDI LIBMPSEE unreliable SPI connection

I am sending bytes from SPI master (FTDI FT2232H) over SPI to the SPI slave (FPGA). SPI master is actually a C program that implements libMPSSE directly from the FTDI. C program looks like this: ...
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FT232 is not detected by Device Manager

When I plug my new FTI32RL in to my laptop, it turns on but it is not showing up in the device manager, not even as another device. There is no connection sound, no notification, just the light ...
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183 views

FT232RL PCB Design

I am working on a PCB board design. I am using STM32 as processor. If I make a circuit as I left the schematic attached, can I transfer with USB without any problems? New Schematic:
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1 answer
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FTDI FT230X Fails to enumerate

I've been trying to get a UART made with an FTDI chip - this one to be specific: https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT230X.pdf I've wired it up to be USB bus powered, as per ...
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How to properly connect a USB-C 2.0 plug to an FT230XS module?

I am coming to you for advice and I also need your help. I am working on a motor control board and for the debugging side I use a USB-C 2.0 connector and a module from FTDI, the FT230XS. Here is my ...
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FT232RL keeps resetting

I have a small board with an atmega328p and an FT232Rl. The atmega seems to be working without problems when connected to power and the programmer but when connecting the FT to usb it enters a reset ...
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129 views

PC recognizes keyboard pcb only as FT232R usb UART but doesnt see atmega32a behind it

I made my own pcb design for mechanical keyboard. When I wanted to test it, both mac and windows system recognize only FTDI ft232rl chip on pcb but not atmega32a behind it that controls whole keyboard....
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How to find the USART TTL levels of this board?

I have this Nucelo board with this manual and need to communicate with it with PC through its one of USART peripherals which are: USART3_RX (CN10 pin18) and ...
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2 votes
1 answer
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Raspberry Pi Pico: can read from FTDI dongle but can't write

I have a very weird issue with my USB FTDI uart dongle and Raspberry Pi Pico connection. The problem is that I can read data from the dongle, but not write to it. Raspberry Pi Pico operates at 3.3v ...
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Did I connect the FT232 with the Digital isolator Data wired the other way?

I think I connected the Data wires from the FT232RL to the USB Isolator ADUM3160BRWZ upside down. I just want to confirm this, Data - of the one should be connected to Data + of the other ? Datasheet ...
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FT232 Chip as UART to USB freezes windows and and access denied

(Posting my own solution here) I was trying to use a FT232 to communicate with my Atmega328p-AU (arduino uno's MCU) and even though I had several times made this connection which worked fine, this ...
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3 answers
256 views

Are USB Type A data lines unidirectional or bidirectional?

I want to isolate the data between my computer USB and my FT232RL (as usb to UART converter) to communicate with my arduino Like this: simulate this circuit – Schematic created using CircuitLab ...
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2 votes
3 answers
482 views

FT2232H on custom PCB not recognized by PC

I am using a FT2232H on a custom PCB and I cannot get it to be recognized either by Windows or by FT_Prog. Images of the schematic are attached. I have probed all the power pins and they read the ...
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1 vote
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Sustained SPI communication FT232H

Background I am using FT232H to communicate with my peripheral using the libMPSSE provided by FTDI. I am aware of the INFRA_SLEEP(2) issue with SPI_ToggleCS() function. My peripheral requires me to ...
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32 views

FT232RQ USB pins order confusion [duplicate]

I am implementing a USB to UART conversion board with a FT232RQ. What confuses me is the fact that the USB_D+ and USB_D- pins of the package are sequenced in precisely the opposite order as they are ...
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135 views

FT232H VCCIO pin voltage levels

The datasheets for the FT232H chip are readily useful for interfacing a USB (5V) powered FT232 to any 3.3 volt RS232 (TTL-ish, at 3.3V) device, and for powering the FT232H with 3.3V. In both cases, ...
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Transmitting data over FTDI usb-RS485

I am trying to using a USB-RS485 cable (which utilizes the FT323R). I have it configured to be all output, and to run in async bit bang mode. I am only able to see data on my scope if I call the set ...
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259 views

Which library to use for FT232H, libMPSSE vs libFTDI or something else?

I have an FT232H chip, which supports a max SPI speed of 30 Mhz, I am interested in writing a library which uses the maximum speed of FT232H. And control 4-5 GPIO pins at the same time. I have come ...
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1 vote
1 answer
223 views

Uniquely Identifying FT232H Chips

I have a few FTDI FT232H breakout boards from Adafruit. I wanted to connect multiple of them through a USB hub. I was under the impression that the serial number is unique and based on "The ...
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1 vote
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Is FT1248 same as Quad / Octo SPI?

When reading through the FTDI FT232H datasheet, I saw that the device can be configured as a "FT1248" slave. To me, the protocol they outline looks exactly like half-duplex 2/4/8-bit ...
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2 votes
0 answers
243 views

Not able to communicate with ESP8266-12F using FTDI USB UART bridge

I designed a PCB based on an MPU9250 IMU, an ESP8266-12F, and an FT232RL UART-TTL bridge. You can see schematics for the USB to UART, and ESP8266 circuits here. When I researched about the UART part ...
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2 votes
1 answer
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Reading EEPROM memory (Winbond W25M02GV) with FT4222H USB bridge

I would like to read an EEPROM Memory (SPI Flash Winbond) using an FTDI USB/SPI bridge (FT4222H). I developed a c++ application that connects to the FTDI and reads data from the memory(and using the ...
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1 vote
1 answer
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FT2232HL - using FIFO to send continous data to processing + signaling information

I'm designing a Software Defined Radio project. I want to use an FPGA, DAC, ADC and FT2232HL bridge to handle communication with PC. Can I stream continously data from PC to FIFO? If I will use a FIFO ...
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-5 votes
1 answer
68 views

Send a file over SPI by FT2232HL [closed]

I want to send a bitstream into an fpga with FT2232HL chip. How should i implement sending a file in C to FT2232? I think about continous transmitting of file, instead of sending it in chunks
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3 votes
3 answers
669 views

Alternatives to FT232H for USB to SPI communcation

For my current use case, I am using FT232H as a general purpose device that changes my USB packets into SPI information as an SPI controller for my SPI peripheral. My SPI peripheral can support upto ...
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1 answer
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Connecting PIC32 through FT312D to Android tablet

I need to connect my PIC32 to an Allview Android tablet over USB so that the tablet will charge from my PIC board and also be able to communicate at the same time. I can connect the PIC32 to a FT312D ...
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2 votes
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FT232H/FT2232H mount as /dev/i2c-x

SBC like Raspberry have the 40 pin header which contains a I2C master. This is a accessible via /dev/i2c-0. I would like to achieve the same thing on my linux laptop (ubuntu) using the FT232H chip. I ...
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FT2232H Asynchronous FIFO mode

Has anyone seen an FT2232H port not go into the mode set into the EEPROM? I've got a device that is programmed to be in asynchronous FIFO mode on port A, but functions as though it's still in UART ...
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Programming ATMEGA328P using FTDI Failed

I have a couple ATMEGA328P. I have the FTDI Module; now I can't get the FTDI to program the 328P. I tried all connectivity schematics; I tried with different capacitors and I can't understand why I ...
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1 answer
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FTDI and ST LINK devices together to STM32

I have an STM32 board (blue pill) that I am programming with the Arduino IDE. I couldn't program it using an FTDI adapter because I couldn't make the Arduino IDE communicate trough the USART for ...
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2 votes
3 answers
2k views

USB-C replacing 6-Pin FTDI Header

I have a PCB with an Atmega328 and have been programming it using FTDI Friend (FT232RL Chip Adapter). The adapter connects to a 6 pin FTDI header on the PCB. I want to connect the FTDI Chip Adapter to ...
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How to debug serial communication with RealTerm?

I am trying to debug an LCD device with an RS232 UART interface. I am using RealTerm on a Windows 10 machine. The UART interface works properly. I have checked the sending device, using an ...
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0 votes
2 answers
422 views

Sending large ammount of data with USB

I'm currently facing a big problem. I've an MCU (STM32L4) connected to an SD card (SDIO) which stores tons of data (5Gb) from a microphone. I need to send this data as fast as possible from SD card to ...
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1 vote
1 answer
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Different behaviour of FTDI231XS on two PCBs with same circuit

I have designed two PCBs, both using a FTDI231XS USB to serial chip to program an ESP32. Both boards have the same circuit design to control the FTDI231XS chip. One board was hand soldered (board A); ...
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1 vote
1 answer
317 views

Connecting a USB to UART converter to a computer's serial DB9 port

I have an APU2 that diverts any 'display' over a serial console (DB9F). For accessing the serial console, a null modem cable is recommended where the wires are crossed over. However, my computer does ...
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1 vote
1 answer
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FT4232H: Configuring RI# as TXDEN Using FTProg

I am developing a device based around two FTDI FT4232H quad USB-to-Serial converters plugged into a Texas Instruments TUSB2046 USB hub controller. The serial outputs of each FT4232H channel goes to a ...
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1 vote
2 answers
694 views

Flashing program into microcontroller, usb-ttl, idea behind?

I have limited knowledge on this topic(MCUs, communication protocols, etc.). I back then worked with an STM32 MCU and did some UART(or USART, can't remember) communication between a PC and the MCU. ...
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0 votes
1 answer
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Long Range (100m) USB(PC) to USB (microController USB module) Communication

I have a system that communicates between PIC32MX250F256D (USB module) and PC via USB (2 meters apart). And I need to increase the range of this communication to 100 meters. Due to typical 5m limit of ...
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