A/D convertor AD7715 with BS2

Archiver

I am tring to read a AD7715 with a BS2 and I get all kind of weird
numbers .Please somebody help me [noparse]:([/noparse]

Archiver

I use the following code with the AD7730 :

ADdata VAR Word 'variable to hold 16 bit AD result.
SCLK CON 7 'clock to AD pin number.
DATAIN CON 8 'AD data input pin number.
DATAout CON 9 'AD data output pin number.
RDY CON 10 'RDY input pin number.

Code for initiating

SHIFTOUT DATAin,SCLK,MSBFIRST,[noparse][[/noparse]$FFFF\16,$FFFF\16] 'reset the AD7730 after
power up.

SHIFTOUT DATAin,SCLK,MSBFIRST,[noparse][[/noparse]$XX] 'write to a
register.
.
.
.

LOW X 'set DIN line low to ensure part is not reset
'while in continuous read mode.

Code for reading data

waitRDY:
IF RDY = 1 THEN waitRDY 'wait for RDY to go low to indicate
output update.

SHIFTIN DATAout,SCLK,MSBPOST,[noparse][[/noparse]ADdata\16] 'read result from data
register.

I hope this help

Regards
Mohamed Refky


>From: "marin_ene" <marin_ene@y...>
>Reply-To: basicstamps@yahoogroups.com
>To: basicstamps@yahoogroups.com
>Subject: [noparse][[/noparse]basicstamps] A/D convertor AD7715 with BS2
>Date: Thu, 11 Mar 2004 00:13:13 -0000
>
>I am tring to read a AD7715 with a BS2 and I get all kind of weird
>numbers .Please somebody help me [noparse]:([/noparse]
>
>
>
>
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