ftdi

Hi, I have made a schematic for FT232HL based USB-SPI programmer to flash my ice40 lattice FPGA board. I have attached the schematic below, no matter what I did the chip is not getting enumerated at all. I am not sure what's happening. Initially i forgot to add 12k ohms REF pin resistor but got...

I am currently working with the FT260 chip on the UMFT260EV1A module. It is I2C to USB bridge that uses HID protocol to communicate with the host. I have established connection with the chip and am also able to communicate with an I2C device through the FT260. What I am struggling with is the...

Hi I have an ATMega2560 16U-IH chip connected to an FT232RL FTDI chip which is then connected to my PC. From the PC, I am able to see the FTDI chip but unable to communicate with the ATMega2560 chip. The wiring: PC (USB) -> FTDI chip: - see attached image +5v (red USB wire) to Pin 20 (VCC)...