Hi guys,I'm using an FT232RL to interface to the UART on a 1284P, I'm not using a bootloader so I don't feel I need to use the reset pin from the 232RL to reset the Atmega. The below is my schematic, how I intend to include the 232RL in my design.1) Looking around, it seems 5V is the correct voltage level for the Atmega UARTS - correct? The datasheet says connect VCCIO to VCC to drive out at 5V TTL.Correct. If however you ever have one of the arduino type boards that operates with a Vcc of 3.3vdc then you would connect VCCIO to the 3v3out pin on the FTDI.2) I do not need to use the CTS and RTS pins for handshaking do I? I'm not even sure what handshaking is, the 232RL datasheet just talks about it in it's 232RL to MCU example. Are the RX & TX pins enough by themselves for the chip to talk to the Atmega?Yes, no handshaking signals need wiring to anything for the FTDI to operate.Lefty
Correct. If however you ever have one of the arduino type boards that operates with a Vcc of 3.3vdc then you would connect VCCIO to the 3v3out pin on the FTDI.
That's OK, as long as the GNDs are common._______Rob
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