Overview
The SBE70LC Development Board enables you to evaluate and develop with the SBE70LC module. Peripherals are also included as example circuits that can be copied to your own design. Extension headers make it easy to connect to external hardware. The USB port can be used to monitor UART0 and/or power the board.
- Note
- The default connection for UART0 is the USB port. You must change the appropriate hardware jumpers if you wish to route UART0 through the DB9 connector.
Features
- Input power can be routed from the USB connector (default), or external power jack (5-12 VDC).
- UART0 can be routed to the USB connector (default), as RS-232 through the associated DB9 connector.
- UART1 can be routed as RS-232 through the UART1 DB9 connector (default), or as RS-485 through the J4 5-pin header connector.
- The RS-232 DB9 serial port connectors have DTE pin-outs, so a null-modem cable is not required.
Default Setup
It is recommended that you become familiar with the NetBurner tools and development environment using the factory default configuration as described below:
- Connect the SBE70LC module to the development board JP1 2x10 header with the provided 20-pin ribbon cable.
- The default serial port configuation is UART0 through USB and UART1 throuh the UART1 DB9.
- UART0 is the default for the boot monitor interface and status messages from the application (the stdio interface), and UART1 is the data interface. All these settings and fucntions can be chagned later.
Jumper Configuration
The DEV-SBE70LC development board jumper settings are listed on the back of the board, and also detailed below:
| Jumpers | Description | Configuration |
|---|---|---|
| JP1 | Input Power - Ext. Jack | [1 2] 3 |
| JP1 | Input Power - USB J3 | 1 [2 3] |
| JP2 | USART0 RX - DB9 RS-232 J1 | [1 2] 3 |
| JP2 | USART0 RX - USB | 1 [2 3] |
| JP3 | UART0 CTS - DB9 RS-232 J1 | [1 2] 3 |
| JP3 | UART0 CTS - USB | 1 [2 3] |
| JP4 | USART1 RX - DB9 RS-232 J2 | [1 2] 3 |
| JP4 | USART1 RX - RS-485 P3 | 1 [2 3] |
| JP5 | UART0 CTS - DB9 RS-232 J2 | [1 2] 3 |
| JP6 | RS-485 RTS Drive Polarity Inverted (active high) | [1 2] 3 |
| JP6 | RS-485 RTS Drive Polarity Direct (active low) | 1 [2 3] |
| JP7 | RS-485 Half Duplex | Jumper On |
| JP7 | RS-485 Half Duplex | Jumper Off |
| JP8 | USART1 RS-485 echo enabled | Jumper Off |
| JP8 | USART1 RS-485 echo disabled | Jumper On |
Hardware Signals
There are two 20-pin headers on the SBE70LC module: one is populated with a 0.1-inch dual-row male header, and the other one is not populated. The unpopulated position has the same signals, and it is intended to be used for applications that may require the header on the non-component side of the board assembly.
For hardware signal information please refer to the data sheet on the product page at www.netburner.com: SBE70LC Data Sheet.