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AD5231 Dig_Pot driver

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kmp84

Joined: 02 Feb 2010
Posts: 354

AD5231 Dig_Pot driver
Posted: Mon Nov 01, 2010 9:32 am

Hi All Anybody control the AD5231 dig_pot..?? Driver for it..?

kmp84

Joined: 02 Feb 2010
Posts: 354

Re: AD5231 Dig_Pot driver

Posted: Tue Nov 09, 2010 6:34 am

kmp84 wrote:

Hi All

Anybody control the AD5231 dig_pot..?? Driver for it..?

Hi Friends! Smile

This is sample driver fot AD5231 Digital Potentiometer (1024-positions). Here is implement only function (No:11)RDAC register control.

Code:

#define CLK PIN_A1
#define DAT PIN_A0
#define CS PIN_A2

void set_pot(unsigned int16 data)
{
BYTE i;
BYTE cmd[3];

cmd[0] = MAKE8(data,0);
cmd[1] = MAKE8(data,1);
cmd[2] = 0xB0;

output_low(CLK);
output_low(CS);

for(i=1;i<=24;++i) {
output_bit(DAT, shift_left(cmd,3,0));

output_high(CLK);
output_low(CLK);
}
output_high(CS);
}

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