SRXL Library

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Detailed Description

The SRXL Library provides routines and registers specific to the SRXL board.

For more information on the SRXL Satellite Tuner, please see the board's manual, available at http://www.edt.com/manuals/PCD/srxl.pdf

NOTE: To avoid conflict with other EDT software, registers defined in the SRXL software library prepend SRXL_ to the hardware register's names.

Defines
#define	SRXL_AD_CAPTURE_CTRL   (INTFC_BYTE | 0x63)
#define	SRXL_AD_READ_DATA   (INTFC_BYTE | 0x60)
#define	SRXL_CLK_CTRL   (INTFC_BYTE | 0x5f)
#define	SRXL_CONSTANT   0x0c
#define	SRXL_DACA_LOW   (INTFC_BYTE | 0x58)
#define	SRXL_DACB_LOW   (INTFC_BYTE | 0x5a)
#define	SRXL_DDS_CTRL   (INTFC_BYTE | 0x50)
#define	SRXL_DDS_DATA   (INTFC_BYTE | 0x51)
#define	SRXL_GC_ADDR   (INTFC_BYTE | 0x64)
#define	SRXL_GC_DATA   (INTFC_BYTE | 0x65)
#define	SRXL_PLL_LOW   (INTFC_BYTE | 0x5c)
#define	SRXL_SERIAL_CTRL   (INTFC_BYTE | 0x54)
#define	SRXL_SERIAL_CTRL_XFER_BUSY   0x80
#define	SRXL_X_CONST   0x43
#define	SRXL_X_CTRL   (INTFC_BYTE | 0x41)
#define	SRXL_X_CTRL_FIFO_EN   0x40
#define	SRXL_X_CTRL_INIT   0x01
#define	SRXL_X_CTRL_PROG   0x02
#define	SRXL_X_CTRL_PROG_EN   0x20
#define	SRXL_X_DATA   (INTFC_BYTE | 0x40)
#define	SRXL_X_STAT   (INTFC_BYTE | 0x42)
#define	SRXL_X_STAT_DONE   0x02
#define	SRXL_X_STAT_FCNT_MSK   0xf0
#define	SRXL_X_STAT_FCNT_SHFT   4
#define	SRXL_X_STAT_FIFO_CNT(dev)   ((edt_reg_read((dev), SRXL_X_STAT)>>SRXL_X_STAT_FCNT_SHFT) & SRXL_X_STAT_FCNT_MSK)
#define	SRXL_X_STAT_INIT   0x01
Functions
void	srxl_gc_set_page (EdtDev *edt_p, int chip, int page)
	Sets which page of registers to use on the board's specified graychip.
void	srxl_gc_write (EdtDev *edt_p, int chip, uint_t address, uint_t value)
	Writes the given value to the given address on specified graychip.
void	srxl_serial_write (EdtDev *edt_p, uint_t desc, uint_t val)
	Uses the SRXL mezzanine board Xilinx FPGA's serial method to communicate with that board's devices.
int	srxl_set_if_losc (EdtDev *edt_p, unsigned freq)
	Sets IF local oscillator frequency.
int	srxl_set_lb_losc (EdtDev *edt_p, unsigned freq)
	Sets L-band local oscillator frequency.
int	srxl_set_sample_clk (EdtDev *edt_p, float samp_freq)
	Sets sample clock frequency.

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Function Documentation

void srxl_gc_set_page	(	EdtDev *	edt_p,
		int	chip,
		int	page
	)

Sets which page of registers to use on the board's specified graychip.

Parameters:

	chip	Specifies which graychip to address, 0 for the first graychip, or 1 for the second chip.
	page	Specifies which page of registers to use on the given graychip. The value of the page is set in a register, and will be set until changed by caller.

Definition at line 56 of file lib_srxl.c.

void srxl_gc_write	(	EdtDev *	edt_p,
		int	chip,
		uint_t	address,
		uint_t	value
	)

Writes the given value to the given address on specified graychip.

Parameters:

	chip	Specifies which graychip to write to, 0 for the first chip, or 1 for the second chip.
	address	The address on the graychip to access
	value	The value to write to the given address.

Definition at line 34 of file lib_srxl.c.

void srxl_serial_write	(	EdtDev *	edt_p,
		uint_t	desc,
		uint_t	val
	)

Uses the SRXL mezzanine board Xilinx FPGA's serial method to communicate with that board's devices.

This function simply waits for the XFER_BUSY bit of the SRXL_SERIAL_CTRL register to be low before doing a normal edt_reg_write(edt_p, desc, val).

Parameters:

	desc	The register description in the form that edt_reg_write() takes.
	val	the value to write to the specified register (desc).

Definition at line 17 of file lib_srxl.c.

int srxl_set_if_losc	(	EdtDev *	edt_p,
		unsigned	freq
	)

Sets IF local oscillator frequency.

Parameters:

freq

Desired frequency in MHz (must be between 63 and 225, inclusive).

Returns:

0 on success, -1 on failure

Definition at line 144 of file lib_srxl.c.

int srxl_set_lb_losc	(	EdtDev *	edt_p,
		unsigned	freq
	)

Sets L-band local oscillator frequency.

Parameters:

freq

Desired frequency in MHz (must be between 925 and 2175, inclusive).

Returns:

0 on success, -1 on failure

Definition at line 186 of file lib_srxl.c.

int srxl_set_sample_clk	(	EdtDev *	edt_p,
		float	samp_freq
	)

Sets sample clock frequency.

Parameters:

samp_freq

Desired sample clock frequency in MHz; precision is limited to about 24 bits by float format. Frequency must be in range 1..65.

Returns:

0 on success, -1 on failure

Definition at line 73 of file lib_srxl.c.

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