Difference between revisions of "Umarim Lite v2"

Revision as of 03:40, 6 July 2012

Version #	Release Date	Release Notes
v2	07/2012	Minor PCB modifications
v1	03/2012	Initial release of Umarim Lite

Pins Name and Type are specified with respect to the Autopilot Board

**SRV0/1/2/3/4/5**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+5V	PWR	5V Rail from autopilot	Orange
3	SRVx	OUT	Servo signal (PWM)	White

**R/C**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+5v	PWR	5V Rail from autopilot	Orange
3	PPM_IN	IN	PPM Stream from R/C Receiver (5V tolerant)	White

**SPI1**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+3.3V	PWR	3.3V Rail from autopilot	Red
3	SSEL1	IN	SSP Slave Select. Selects the SSP interface as a slave (SSEL1)	Brown
4	MOSI1	I/O	SPI1 Master Out Slave In. Data output from master / data input to slave	Grey
5	MISO1	I/O	SPI1 Master In Slave Out. Data input to master / data output from slave	Green
6	DRDY1	IN	External interrupt 0 input (EINT0)	Purple
7	SCK1	I/O	SPI1 Serial clock. Clock output from master or input to slave	Yellow

**AUX**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+5V	PWR	5V Rail from autopilot	Orange
3	+3.3V	PWR	3.3V Rail from autopilot	Red
4	AUX1	I/O	General Purpose I/O #1 or ADC Input ADC_0 (lpc AD1.5)
5	AUX2	I/O	General Purpose I/O #2 or ADC Input ADC_1 (lpc AD1.4)
6	AUX3	I/O	General Purpose I/O #3 or ADC Input ADC_2 (lpc AD1.3)
7	AUX4	I/O	General Purpose I/O #4 or ADC Input ADC_3 (lpc AD1.2)

**UART0**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+5V	PWR	5V Rail from autopilot	Orange
3	+3.3V	PWR	3.3V Rail from autopilot	Red
4	RXD0	IN	UART0 Serial Input (3.3V level, 5V Tolerant)	Green
5	TXD0	OUT	UART0 Serial Output (3.3V level)	Blue

**UART1**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+5V	PWR	5V Rail from autopilot	Orange
3	+3.3V	PWR	3.3V Rail from autopilot	Red
4	RXD1	IN	UART1 Serial Input (3.3V level, 5V Tolerant)	Green
5	TXD1	OUT	UART1 Serial Output (3.3V level)	Blue

**I2C0**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+5V	PWR	5V Rail from autopilot	Orange
3	+3.3V	PWR	3.3V Rail from autopilot	Red
4	SDA0	Open Drain I/O	I2C0 bus Serial DAta	Brown
5	SCL0	Open Drain I/O	I2C0 bus Serial CLock	Blue

**I2C1**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	+5V	PWR	5V Rail from autopilot	Orange
3	+3.3V	PWR	3.3V Rail from autopilot	Red
4	SDA1 BOOT	Open Drain I/O	I2C1 bus Serial DAta In-Circuit Serial Programming (ISP) enable (P0.14, +3.3v pullup) (Note)	Brown
5	SCL1	Open Drain I/O	I2C1 bus Serial CLock	Blue

Note: Holding this pin low for at least 3mS after a RESET (or power up) instructs the controller to enter programming mode.

**USB**
Pin #	Name	Type	Description	Color
1	GND	PWR	common ground	Black
2	USB+	I/O	USB bidirectional D+ line	Green
3	USB-	I/O	USB bidirectional D- line	White
4	VBUS	IN	Indicates the presence of USB bus power (P0.23) (5V level)	Orange

Note: MiniUSB and Molex USB connectors are in parallel, only one can be connected at a time.

Check availability on Get Hardware page

1 x FTDI TTL-232R-3V3 (Digikey #768-1015-ND) USB to UART converter cable with +3.3V TTL level UART signals. (see Note 1)
2 x 4-pin connector housing Molex Picoblade 51021-0400 (Digikey #WM1722-ND)
5 x crimp terminal female Molex Picoblade 50058-8000 (Digikey #WM1775CT-ND)
1 x 6-pin 0.1" pitch single in line male connector header Samtec TSW-132-07-TS (Digikey #SAM1035-32-ND) or equivalent
28-32AWG wiring cable

Note1: It is advised to use FTDI USB-serial converter, as serial FTDI chips are by default working well in Linux.

The Paparazzi ground station software is configured to look for modems on FTDI ports by default.

This harness can also serve as a modem interface (after it's use in Bootloader uploading) if you plug it on Umarim's UART1 connector

Make up a wiring harness similar to the following

@@ Line 1: / Line 1: @@
 <div style="float: right; width: 15%"><categorytree style="float:right; clear:right; margin-left:1ex; border: 1px solid gray; padding: 0.7ex;" mode=pages>Autopilots</categorytree></div>
-<div style="float: right; width: 50%; overflow: hidden">[[Image:UmarimLite_v2_3D_bottom.png|right|500px|Umarim Lite v2 bottom side]]</div>
+<div style="float: right; width: 50%; overflow: hidden">[[Image:UmarimLite_v2_bottom.jpg|right|500px|Umarim Lite v2 bottom side]]</div>
 <div style="float: right; width: 35%">__TOC__</div>