Hi, I'm using an 89C51RD2 chip and an Texas Instruments TL16C754B Quad UART chip for serial communication. At power-on, a random character gets transmitted on all 4 channels of the UART. Can someone please tell me why this may be happening and how to prevent it? Thanks and warm regards, Sundeep
But the RST pin of the controller is connected to the RESET pin of the UART. So, the UART starts functioning only after the Controller has reset. RST is an input, what drives it? Erik