cx.c File Reference

Generic functions for the extension connector. More...

Go to the source code of this file.

Functions
s32	CX_Configure (tCX_ID what, s32 param1, s32 param2)
	Initialization of the GPIOs and peripheral available on the extension board. More...
s32	CX_Write (tCX_ID what, s32 param1, s32 param2)
	Handle outputs onto the extension connector. More...
s32	CX_Read (tCX_ID what, s32 param1, s32 param2)
	Handle outputs onto the extension connector. More...

Detailed Description

Author

FL

Date

11/2012

Note

Added to encapsulate generically the access to the extension connector (CX)

Definition in file cx.c.

Function Documentation

s32 CX_Configure	(	tCX_ID	what,
		s32	param1,
		s32	param2
	)

Parameters

[in]	what	the pin reference or the peripheral.
[in]	param1	GPIO : configuration mode of the pin (in / out / pull up...) ADC : none, USART : configuration structure, SPI : configuration structure.
[in]	param2	not used, reserved for future use.

Returns

0 if no error

Note

Is NOT called by CircleOS startup.

Definition at line 47 of file cx.c.

s32 CX_Read	(	tCX_ID	what,
		s32	param1,
		s32	param2
	)

Parameters

[in]	what	the pin reference or the peripheral.
[in]	param1	GPIO : state of the input or output (CX_GPIO_LOW or CX_GPIO_HIGH), ADC : analog value, USART : configuration structure, SPI : configuration structure.
[in]	param2	not used, reserved for future use.

Returns

0 if no error

Definition at line 139 of file cx.c.

s32 CX_Write	(	tCX_ID	what,
		s32	param1,
		s32	param2
	)

Parameters

[in]	what	the pin reference or the peripheral.
[in]	param1	GPIO : output state to write (CX_GPIO_LOW or CX_GPIO_HIGH), ADC : not applicable, USART : address of buffer to send, if NULL, param2 = address of byte number staying to send. SPI : address of buffer to send, if NULL, param2 = address of byte number staying to send.
[in]	param2	address of byte number to send, or byte number staying to send.

Returns

0 if no error

Definition at line 107 of file cx.c.