Background on CI-V, if you're interested : -Edit- I realised after posting that I'd left out the filtering coil and cap for the output. ICOM CI-V Level Converters are designed to allow for the connection of one or more ICOM transceivers to a personal computer RS-232C port. The USB CI-V Interface plugs into the USB port of a Windows, Macintosh or Linux computer, allowing an Icom radio (or other radios with a CI-V interface) to be. Thanks much for your opinions and suggestions. Question is, will this cause an issue for the FT232? The MAX232 seems to not have a issue there, but different chip, different source signals (USB vs.
The only real difference from the first reference is the TXD and RXD lines connected directly together at the chip side rather than isolated, as in with the MAX232 design in the second reference. Couple of reference pages : Working off the reference pages, I came up with a circuit based on the FTDI FT232R chip in the attached photo. I'm getting an Icom IC-7000 in a week or so and want to be able to computer control the functions.
It takes an input voltage usually greater than 7 volts, and regulates it down to 5 volts. The 5 volt regulator is shown as a LM7805. Working up a USB to serial TTL converter project for control of a device, an Icom CI-V converter to be exact. CI-V Interface Schematic Diagram Notes Notes, in no particular order.
