Electrical Engineering Stack Exchange
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Questions tagged [ft232]

18 questions
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votes
2 answers

FT232H FIFO slow USB?

So, I have an FT232H chip, specifically this breakout. I'm trying to read data as fast as possible from it, so I've set it to synchronous 245 FIFO mode, which the datasheet says should yield up to 40 Mbytes/s. I've wired AC3 = WR# to ground, on the…
Erhannis
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1 answer

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: // POSIX headers #include #include…
71GA
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1 answer

FT230X no handshaking signals

I'm new to digital circuits so I apologize if this is a stupid question. I'm building a small circuit where a mcu is connected to a FT230X ic to enable the internal uart to communicate with a computer via a USB port. The FT230X ic has the flow…
John Smith
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Pico / FT232H FIFO bad data

So. I've been trying for several days to get parallel data transfer from a Raspberry Pico through a FT232H to a host computer. I'd like ~25MB/s, which is why I'm trying this route in the first place. I have a Raspberry Pico W, and two FT232H…
Erhannis
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1 answer

Can't receive any data from FT231X

I want to use the FT231X as UART-to-USB adapter, with a ESP32 as UART host. Schematic: I can confirm that the ESP32 outputs the correct UART messages via the ESP32_U2TX pin (confirmed with oscilloscope). I also can access the FT231X chip via the…
michaelgr22
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2 answers

Crystal drive level for FT232H IC

I am designing a board with an FT232H chip to communicate through USB (bus powered configuration). The oscillator configuration is described in the datasheet, with the pertinent section pasted below. I believe I have the parallel capacitor selection…
ron19
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FT232 UART connected with a light sensor BH1750

I want to read serial data by a python script from a light sensor. I have the light sensor BH1750 and a USB-TTL Chip (see image). I have no idea about electronic hardware. Could someone tell me how I connect the pins between these two?
Ardit Selfo
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FT232RL PCB design

I am working on a PCB board design. I am using an STM32 as processor and an FT232RL as a USB to serial UART interface. If I make a circuit as in the attached schematic, can I transfer data with USB without problems? New schematic:
Enes Orhan
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1 answer

FT232RL: USB not recognized

I designed a circuit with an FT232RL IC, but Windows doesn't recognize the USB. Please refer to the attached schematic diagram.
Viraj Parshuram
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2 answers

FT232RL OSCI pin termination

How do deal with Input pins, which not in use. Have seen many examples, where they kept floating, but I don't like personally when an high-Z inputs kept floating in the design in some IC which I could not control FW of. Seen DSR, DCD, RI could be…
Pinus
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FT232H: Clock stretching using MPSSE

I use an AN108 to drive my I2C line (actually SMBus). I'm debugging with an oscilloscope. Doing a read, right after the 8b address, I found that the slave was pulling down my clock signal SDC for a few cycles, therefore the ACK isn't read…
Alexis
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ESP32-C3-WROOM: error flashing chip

I am developing an ESP32-C3-WROOM custom board, but when I tried to flash the chip using UART (FT232D USB-TTL) and Arduino IDE, I got the message "A fatal error occurred: Failed to connect to ESP32-C3: Timed out waiting for packet header". I have…
Nirmal Mathew Theruvil
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FT232RL Chip is not working (USB to TTL)

I used an FT232RL chip to make a USB to TTL converter using the schematic below. Although I can send a message and the TX LED is lightining up, I cannot receive any messages. Can anyone see a problem with my schematic?
Aiakon
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2 answers

Vbus led doesn't turn off after disconnecting USB cable

I designed a circuit based on FT232XS (USB bus powered configuration). I placed red Led on vbus, when I disconnect the usb cable the led doesn't completely turn off and (tx, rx) leds start slightly blinking. when I reconnect the USB cable (Tx,Rx)…
PCB-ABBS
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232RL as COM port: Recognize the device on commercial product - from the software's perspective

I am making a device that uses 232RL to translate from UART to USB and windows see a COM port. The connections are like so: simulate this circuit – Schematic created using CircuitLab I want to find a way so that when the customer plugs the product…
Christianidis Vasileios
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