CoX Peripheral Library is the definition of a group of interface functions. It defines the functional access functions of MCU’s common peripherals, such as IIC, SPI, UART, etc. CoX makes full functions, drivers based on CoX can be ported to other MCU easily. CoX Peripheral Library can be divided into four parts: Common mandatory type interface. Common type of non-mandatory interface. MCU-specific interface. MCU register interface.

Features :

• Free and open source under BSD license
• Peripherals library with a unified standard interface, can be ported to other MCUs easily
• Full functions of the peripheral, CoX still provides a set of APIs for special MCU features
• Support interrupt, CoX extracts a set of interrupt events
• A lot of reused drivers
• Extensive documentation generated using doxygen standard
• Standard definition of the API reference for almost all the Cortex-M0/M3 MCU manuals
• Add a new innovative element, such as the short pin (PA2) in GPIO module
• Strict coding standard and does not affect code size and speed, through rigorous testing and verification
• Configurable
• Provide blank template to make port more easily
  

 See what’s the difference between the new CoX and old CoX (released in September 2010, and has been ported to several MCU platforms, such as LPC11xx, NUC1xx and so on.)

Why do we use CoX ?

• CoX Peripheral is not only a common interface for drivers, but also a full peripheral library
• CoX function interface unify the definition of the access functions of MCU’s common peripherals, which makes you port programs among different MCUs more conveniently.
• CoX has a set of specific realization for each MCU, and its code size and speed are nearly the same as the library that the suppliers provided.

When should we use CoX ?

• If users may change MCU in the future and do not want to do too much unnecessary port work.
• If users plan to use the existing drivers based on CoX interface.

How to use CoX ?

CoX is a group of APIs and Macros who have the prefix x. such as  xGPIOPinRead(), etc..
Click here to see more about how to use CoX.

Interface Definition

Interface	Description	States	Date
Startup	CoX startup code		09/2011
LowLayer	CoX lowlayer support, such as type define, register define,  debug assert and so on.		09/2011
CORE	Cortex-M0/M3 Core Peripheral Interface		09/2011
SysCtl	System Control(CG & PMC) Peripheral Interface		09/2011
DMA	DMA Peripheral Interface		09/2011
GPIO	GPIO & AFIO Peripheral Interface		09/2011
UART	UART Peripheral Interface		09/2011
SPI	SPI(SSI) Peripheral Interface		09/2011
I2C	I2C Peripheral Interface		09/2011
TIMER	Timer Peripheral Interface		09/2011
PWM	PWM Peripheral Interface		09/2011
RTC	RTC Peripheral Interface		09/2011
WDT	Watchdog Timer Peripheral Interface		09/2011
ADC	ADC Peripheral Interface		09/2011
ACMP	Analog Comparator Peripheral Interface		09/2011
I2S	Inter-Integrated Circuit Sound(I2S) Peripheral Interface		12/2011 (delay)
CAN	CAN Bus Peripheral Interface		12/2011 (delay)
USB	USB Device/Host/OTG Peripheral Interface		12/2011 (delay)
EBI	EBI bus Peripheral Interface		12/2011 (delay)

Supported MCU Platform

Manufacturer	Series	States	Date	Download
CooCox	CoX Port Template		09/2011	Download
Nuvoton	NUC1xx		09/2011	Download
	NUC122		12/2011	Download
	M051		12/2012	Download
	Mini51		2/2012	Download
NXP	LPC11c1x		2012	NA
	LPC11xx		12/2011 (delay)	NA
	LPC12xx		2012	NA
	LPC13xx		2012	NA
	LPC17xx		2012	NA
ST	STM32F10x		7/2012	Download
TI	Stellaris		12/2011 (delay)	NA
Holtek	HT32F125x		7/2012	Download
	HT32F175x_275x		7/2012	Download
FreeScale	KLx		09/2012	Download

* If you hope other MCUs can be supported by CoX as soon as possible, you can develop them by yourself with our guide, contact us please!