Texas Instruments TLV1562 manual Source Code, Common Software for all Modes except C-Callable

Software Overview

8.6Source Code

The following paragraphs contain the source code.

8.6.1Common Software for all Modes (except C-Callable)

The files shown below contained the actual ’C54x program listings and program examples.

8.6.1.1Constants.asm

***************************************************************************

* TITLE	: TLV1562 ADC Interface routine	*
* FILE	: CONSTANT.ASM	*
* FUNCTION	: N/A	*
* PROTOTYPE	: N/A	*
* CALLS	: N/A	*
* PRECONDITION	: N/A	*
* POSTCONDITION	: N/A	*
* SPECIAL COND.	: N/A	*
* DESCRIPTION	: definition of constant values for interface software	*
* AUTHOR	: AAP Application Group, ICKE, Dallas/Freising	*
*	CREATED 1998(C) BY TEXAS INSTRUMENTS INCORPORATED.	*
* REFERENCE	: TMS320C54x Assembly Language Tools, TI 1997	*
*	TMS320C54x DSKPlus User’s Guide, TI 1997	*
*	Data Aquisation Circuits, TI 1998	*

***************************************************************************

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*SEND WORDS FOR THE ADC TLV1562

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*INDEX MODE 0:

CH1	.set 00000h ;		Channel selection is Channel 1
CH2	.set 00001h ;		Channel selection is Channel 2
CH3	.set 00002h ;		Channel selection is Channel 3
CH4	.set 00003h ;		Channel selection is Channel 4
PAIR_A	.set 00000h ;		Channel selection is Pair A
PAIR_B	.set 00003h ;		Channel selection is Pair B
MONO_INT	.set 00000h	;	Conversion mode selection is Mono Interrupt
DUAL_INT	.set 00004h	;	Conversion mode selection is Dual Interrupt
MONO_CONTINUOUS	.set 00008h ;		Conversion mode selection is Mono Continuous
DUAL_CONTINUOUS	.set 0000Ch ;		Conversion mode selection is Dual Continuous
SINGLE_END	.set 00000h	;	Input type is Single Ended
DIFFERENTIAL	.set 00010h ;		Input type is Differential
CLK_INTERNAL	.set 00000h ;		Conversion clock selection is Internal
CLK_EXTERNAL	.set 00020h ;		Conversion clock selection is External
CALIB_OP	.set 00000h	;	Operate with the calibrated inputs
SYS_OFF_CALIB	.set 00040h ;		do a system offset calibration
INT_OFF_CALIB	.set 00080h ;		do a internal offset calibration

Interfacing the TLV1562 Parallel ADC to the TMS320C54x DSP 41