Circuit Lake

Electronic Project and Circuit Collection

USB 8 Bit Interface Board

06/23/2009 Category: Digital, Project, USB

USB 8 bit project

This USB interface board project is used to connect 8 (parallel) data lines to the USB. Main component of this project is FT245BM. With a small internal FIFO (384 byte Tx, 128 bytes Rx) and 4 handshake lines which make it suitable for interfacing microcontroller designs to the USB. Wolfgang says that you can also use it as simple 8bit IO when the bitbang mode is enabled. But in this mode, the bits will not come out in a constant bitrate but in chunks of 64 bytes with specified baud rate followed by a delay.

USB Project
USB 8 bit IO Interface board