NANO Development Board Overview

The NANO Adapter/Development board enables you to evaluate and develop with the NANO54415-200IR 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. The DB9 serial port connector is connected to UART1 on the processor.

The following are some features of the NANO-Dev Adapter Board:

Switching power supply
Reset button
MicroSD Card flash memory slot with SDHC support
RS-232 and RS-485 Level Translator
USB connector for serial data and power
Power jack for optional external power supply instead of USB

Jumper Settings

For the most up to date pin references and schematics, visit the product page.

Power and Serial

The default configuration is:

Power = USB (alternate is optional external power supply)
UART0 = USB
UART1 = DB9, RS-232
UART2 = JP5 header, RS-485 (alternate function is CAN)

/note If you want to access any of these signals as 3.3V TTL on headers P2 or P3, be sure to remove the appropriate jumpers to disconnect from level converters.

Jumper	Description	Configuration
JP1	CAN 120 ohm termination resistor	Jumper
JP1	No connection	No Jumper
JP2	Power - USB *	Jumper 1-2
JP2	Power - External power supply (optional)	Jumper 2-3
JP3	UART1 RX - RS232 DB9 Connector *	Jumper
JP3	UART1 RX - Mini PCI Express at TTL 3.3V	No Jumper
JP4	UART1 CTS - RS-232 DB9 Connector *	Jumper
JP4	UART1 CTS - Mini PCI Express at TTL 3.3V	No Jumper
JP6	UART2 RTS - RS-485 echo enable	Jumper
JP6	UART2 RTS - Mini PCI Express at TTL 3.3V	No Jumper
JP7	UART2 RX - RS-485 level shifter (JP5) *	Jumper
JP7	UART2 RX - Mini PCI Express at TTL 3.3V	No Jumper
JP9	UART0 RX - USB *	Jumper
JP9	UART0 RX - Mini PCI Express at TTL 3.3V	No Jumper

Note: * = default setting

UART 0-2 Data Power and Routing Combinations

Mode	Jumpers Enabled	Jumpers Removed
UART0 via USB	JP9, JP2[1-2]	N/A
UART0 via Mini PCI Express	N/A	JP9
UART1 via RS-232 DB9	JP3, JP4	N/A
UART1 via Mini PCI Express	N/A	JP3, JP4
UART2 via RS-485 5-pin header (JP5)	JP7, JP6 (Optional)	N/A

Note: Power must be selected in all modes JP2[1-2] or JP2[2-3]

DB9 UART1 Signals

Pin	Signal	Pin	Signal
1	No Connect	6	Short to 4
2	TX	7	CTS
3	RX	8	RTS
4	Short to 6	9	No Connect
5	Ground

JP5 Header UART2 RS-485 or CAN Operation

Pin	RS-485	Pin	CAN
1	RX- (FD)	2	GND
3	RX+ (FD)	4	GND
5	Power	6	CANL
7	TX+ (FD/HD)	8	CANH
9	TX- (FD/HD)	10	GND

Note: FD = Full Duplex, HD = Half Duplex. Power and GND signals can be used for either mode.

Input Power

The default power source is 5VDC USB power. The USB connector also provides serial communication through UART0. The P5 barrel jack and 2-pin terminal block have a voltage range of 7.5VDC - 12VDC for use with an external power adapter. Be certain to adjust the input power jumper JP2 before switching power sources. The center pin of the barrel jack is positive.

Module Mounting Options

The development board demonstrats how to connect the NANO54415 using a spring clip. There is also a mounting hole so you can mount the module in place. Although the spring clip is very secure, the mounting method using the mounting screw has been used in vehicles ranging from car, trucks, planes and even rockets. Please see the app note for detials: NANO Secure Mounting.