C:/EDK_Projects/SPI_Project_JWW/TestApp_ASAP_SPI/src/asap.c File Reference

#include "xparameters.h"
#include "xio.h"
#include "asap.h"
#include "asap_i.h"

Go to the source code of this file.

Functions
void	Asap_ColdReset (Asap *InstancePtr)
XStatus	Asap_Initialize (Asap *InstancePtr, u16 DeviceID)
Asap_Config *	Asap_LookupConfig (u16 DeviceID)
int	Asap_miso_rdy (Asap *InstancePtr)
u32	Asap_Read (Asap *InstancePtr, u32 RegNumber)
u32	Asap_ReadSpieMiso (Asap *InstancePtr)
void	Asap_StartTransaction (Asap *InstancePtr)
void	Asap_Write (Asap *InstancePtr, u32 RegNumber, u32 Data)

---

Detailed Description

The implementation of the Asap component's basic functionality. See asap.h for more information about the component.

Definition in file asap.c.

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Function Documentation

void Asap_ColdReset

(

Asap *

InstancePtr

)

Perform cold reset on AsAP by toggling Reg4[1] HLH.

Parameters:

InstancePtr

is the pointer to an Asap instance to be worked on.

Returns:

None.

Definition at line 39 of file asap.c.

XStatus Asap_Initialize	(	Asap *	InstancePtr,
		u16	DeviceID
	)

Initialize the AsAP instance provided by the caller based on the given DeviceID.

Parameters:

	InstancePtr	is a pointer to the AsAP instance.
	DeviceID	is the unique ID of the device.

Returns:

• XST_SUCCESS Initialization was successfull.
• XST_DEVICE_NOT_FOUND Device configuration data was not found.

Definition at line 63 of file asap.c.

Asap_Config* Asap_LookupConfig

(

u16

DeviceID

)

Lookup the device configuration based on teh unique device ID. Asap_ConfigTable contains the configuration info for each device.

Parameters:

DeviceID

is the device ID to be looked up

Returns:

• Asap_Config pointer if device is found.
• NULL if device is not found

Definition at line 104 of file asap.c.

int Asap_miso_rdy

(

Asap *

InstancePtr

)

Returns the value of miso_rdy

Parameters:

InstancePtr

is a pointer to the AsAP instance.

Returns:

miso_rdy

Definition at line 130 of file asap.c.

u32 Asap_Read	(	Asap *	InstancePtr,
		u32	RegNumber
	)

Read one of the registers of the device.

Parameters:

	InstancePtr	is the pointer to an Asap instance to be worked on.
	RegNumber	is the register number to be worked on.

Returns:

• Current state of register

Note:

This function only returns the state of one 32-bit register. This function assumes that each registers are 4 bytes apart.

Definition at line 156 of file asap.c.

u32 Asap_ReadSpieMiso

(

Asap *

InstancePtr

)

Reads the SPIE MISO Read data.

Parameters:

InstancePtr

is the pointer to an Asap instance to be worked on.

Returns:

• Current state of SPIE MISO Read register

Definition at line 179 of file asap.c.

void Asap_StartTransaction

(

Asap *

InstancePtr

)

Start SPIE transaction by toggling Reg4[0] LHL.

Parameters:

InstancePtr

is the pointer to an Asap instance to be worked on.

Returns:

None.

Definition at line 201 of file asap.c.

void Asap_Write	(	Asap *	InstancePtr,
		u32	RegNumber,
		u32	Data
	)

32-bits are written to one of the registers of the device. For a Data value of lower width, the LSB's are written to.

Parameters:

	InstancePtr	is the pointer to an Asap instance to be worked on.
	RegNumber	is the register number to be worked on.
	Data	is the data written to the register.

Returns:

None.

Note:

This function assumes that each registers are 4 bytes apart.

Definition at line 226 of file asap.c.