TAIJI-UINO: An HTML repository from ELECHOUSE

#TAJIUINO DUE#

Taijiuino DUE is an Arduino-like board derives from Arduino DUE, it is designed by Elechouse.

Hardware

Schematic and Gerber files of Taiji-Uino board.

Software

Sample code to demonstrate how to use Arduino DUE

rtled turn on LEDRX and turn off LEDTX for 0.5 second, then turn off LEDRX and turn on LEDTX for 0.5 second, repeatedly.
taijidiagram Demonstrate how to make Native USB into a serial port, this program controls all the GPIOs to turn on or turn off the LEDs which are connected to the GPIO, work together with TaijiDiagram, is used to test the TaijiUino Due, a bit like this:
additional_pins shows how to use TaijiUino additional pins.

Additional Pins

As what you see, there are more pins on Taijiuino DUE board. On the backside some silkscreen is marked aside them.
Because Arduino IDE does not support these pins, so to use these pins, you need do some hack things to enable them.

Patch Arduino IDE

Download the TAIJI-UINO repository.
In patch/additional-pins-patch folder, find variant.cpp and variant.h
Open your Arduino IDE folder, and open $ARDUINO/hardware/arduino/sam/variants/arduino_due_x ($ARDUINO stands for the position of your Arduino IDE).
In the arduino_due_x folder you can see variant.cpp and variant.h, rename this two files to variant.cpp.bak and variant.h.bak, in case of you want go back to the origin IDE.
Copy the patch/additional-pins-patch/{variant.cpp, variant.h} to arduino_due_x folder
Open software/additional_pins/additional_pins.ino, upload it to your Taijiuino DUE, then test it.

Why need hack?

We aim at bringing you more pins, but origin Arduino IDE does not support it, so we just hack it.

What change?

In variant.cpp, add description of the additional pins to the structure PinDescription g_APinDescription[], number of these pins are from 92 to 109.
In variant.h, define macros help to remember the index value. Access these pins use three ways(name, pin number, or alias):

For Taijiuino Due R2:
Pin Name				Pin Number			Alias
PB24					103					  TP0
PB23					104					  TP1
PB22					105					  TP2
PB27					106					  TP3
PC20					107					  TP4
PC10					108					  TP5
PC11					109					  TP6
---------------------------------------------------
ERXD1   				98					  TP7
ETXD1   				95					  TP8
ERXER   				99				      TP9
ERXDV  					96					  TP10
EMDC    				100					  TP11
ERXD0   				97					  TP12
EMDIO   				101					  TP13
ETXD0   				94					  TP14
ETXEN   				93					  TP15
EXINT   				102					  TP16
ETXCLK  				92					  TP17
CLKEN   				109					  TP6 

For Taijiuino Due R3 (new):
Pin Name 				Pin Number			Alias
TP0						103					  PB23
TP1						104					  PB23
TP2						105					  PB22
TP3						106					  PC27
TP4						107					  PC20
TP5						108					  PC10
TP6						109					  PC11
---------------------------------------------------
ERXD1   				98					  TP7
ETXD1   				95					  TP8
ERXER   				99				      TP9
ERXDV  					96					  TP10
EMDC    				100					  TP11
ERXD0   				97					  TP12
EMDIO   				101					  TP13
ETXD0   				94					  TP14
ETXEN   				93					  TP15
EXINT   				102					  TP16
ETXCLK  				92					  TP17
CLKEN   				109					  TP6

See more in pin map.
Details in variant.cpp and variant.h.

Example

void setup(void)
{
	// All this three lines do the same thing
	pinMode(PB23, OUTPUT);
	pinMode(103, OUTPUT);
	pinMode(TP0, OUTPUT);

	// All this three lines do the same thing
	digitalWrite(PB23, HIGH);
	digitalWrite(103, HIGH);
	digitalWrite(TP0, HIGH);
}

void loop(void)
{
	//do nothing
}

Get files

# get through GIT tools
git clone https://github.com/elechouse/TAIJI-UINO.git

# download the zip file

elechouse/TAIJI-UINO

Details