NetBurner Community Forum

Hey guys,

I am new to using the Netburner SBL2e. I am placing one of these devices in a new board layout that I am working on and want to make sure things are correct before I commit everything to copper.

My question is, when connecting to the UART pins on the device, what is the point of view of the data direction? When the pin is labeled UART0_TX, is that the pin to send data INTO the SBL2e, or is it received ethernet data that is being sent OUT of the SBL2e?

Thanks,

Steve

The Uart0_Tx, Uart1_Tx, Uart2_Tx lines (JP1: pins 1, 13, 14) are the lines the SBL2e uses to send data out on. They connect to the Rx lines on remote devices.

The Uart0_Rx, Uart1_Rx, Uart2_Rx (JP1: pins 2, 12, 15) lines are the lines the SBL2e uses to receive data on. They connect to the Tx lines from remote devices.

None of these six lines (on JP1) has anything to do with the SBL2e ethernet lines that are on a different connector, J3, or JP3 depending on the version.

Some I/O boards offer jumpers to allow the Tx/Rx pins to be swapped, although this is more commonly done in the wiring between modules (ie between SBL2e and whatever it talks to/from).

Thank you. That is exactly what I needed.

Just wanted to keep my traffic going in the right lanes.....