Customer have questions regarding TI microcontroller TMS320F28386S/Eval board TMDSCNCD2838x, details below.
"I am looking for a IC UART to connect to the Serial Communications Interface (SCI), commonly known as a UART, of the microcontroller TMS320F28386S. This is for a new design, so I am looking for an IC UART with longevity and is available.
I am confused between the SCI ports and the UART ports on the microcontroller TMS320F28386S. The datasheet states the SCI ports are commonly known as UART. I am assuming that both the SCI ports and the UART ports transmit and receive data using the standard non-return-to zero format. Is that correct? UART is a data format and can send them over TTL or RS485 or RS232. RS485 is differential and the SCI ports and the UART ports are not differential. Are both the SCI ports and the UART ports TTL? The UART port says EIA-485 9-bit support. I guess that means I can connect a RS485 transceiver to the UART ports, is that correct. Can I connect a RS485 transceiver to the SCI ports? I need to understand the difference between the SCI port, commonly known as UART, and the UART ports on the microcontroller TMS320F28386S and when to use them. Thank you. We are planning to use UART for debug (TTL levels) and a UART for programming (RS485)
I need to know which port (SCI or UART) for debug (TTL) and what external ICs are needed. I also need to know which port (SCI or UART) for programming (RS485) and what external ICs are needed, for this I assume an external RS485 transceiver. Does TI have any ICs?"
Thank you in advance