Texas Instruments TLV1562 manual Software Overview, SLAA040

Software Overview

NO_CALIB_OP

*INDEX MODE 1: NO_SW_PWDN SW_PWDN

NO_AUTO_PWDN AUTO_PWDN

TWO_COMPLEMENT NO_2COMPLEMENT

NO_DEBUG

DEBUG_MODE

RES_10_BIT

RES_8_BIT

RES_4_BIT

RD_CONV_START CST_CONV_START

.set 000C0h ; Operate without calibrated inputs (no offset)

.set 00100h ; Software power down mode disabled

.set 00101h ; instruction for software power down

.set 00100h ; Automatic internal power–down Disabled

.set 00102h ; Automatic internal power–down Enabled

.set 00100h ; ADC output in 2s complement format

.set 00104h ; ADC output is binary, not in 2s complement

.set 00000h ; Debug mode disabled

.set 00108h ; Debug mode enabled

.set 00100h ; 10-bit resolution of the ADC

.set 00120h ; 8-bit resolution of the ADC

.set 00110h ; 4-bit resolution of the ADC

.set 00100h ; start Conversion by RD Signal

.set 00140h ; start Conversion by CSTART Signal

;Example to use the constants, decribed on the top:

;set the sending value ”send” to sampling Channel 4 with external clock source

;calibrated inputs into Mono Continuous Mode

;

;@send = #(CH4MONO_CONTINUOUSSINGLE_ENDCLK_EXTERNALCALIB_OP);

;port(xxxxh) = @send ; send the value over the Data lines to the TLCV1562

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

*memory organization (table write of samples) for the C54x

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

num_data_A .set 00200h ; Number of data from channel A

num_data_B	.set 00200h ; Number of data from channel B
num_data_C	.set 00200h ; Number of data from channel C
num_data_D	.set 00200h ; Number of data from channel D
data_loc_A	.set 02000h ; Start data location for channel A
data_loc_B	.set 02200h	; Start data location for channel B
data_loc_C	.set 02400h	; Start data location for channel C
data_loc_D	.set 02600h	; Start data location for channel D
TRASH	.set 02000h	; address to waste the first input sample
		; after initialization

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

*bit setting of the serial DAC to match the right mode

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

TLC5618_LATCH_A .set 08000h ; update output A

TLC5618_LATCH_B	.set 00000h ;		update B
TLC5618_DOUBLE_LATCH.set 01000h ;			update both outputs
TLC5618_FAST_MODE	.set 04000h	;	fast settling time (2.5us)
TLC5618_SLOW_MODE	.set 00000h	;	slower settling time (power save)
TLC5618_POWER_UP	.set 00000h	;	remain active
TLC5618_POWER_DOWN	.set 02000h	;	go sleep

42SLAA040