ADS8201: How to read ADC from ADS8201

Dear Tom,

Thanks for your hint.

In my side,
//==========Hardware==========
REF = VA = VD = 3,33V;
ADCIN = AGND = REFGND = 0V;
PGAOUT = PGAREF = 0V;

//===========Software==========
//Hardware Reset
RST = 0;
delay_us(1);
RST = 1;

//set to Idle Mode
Write 0x00 to Register 0x08;

//select channel 6
Write 0x06 to register 0x04;


While(1)
{
ReadADC(); //I read adc by sending 0x0000 0x0000 using SPI(MODE 0, MSB First)
Delay(1s);
}

I see that:
> with 0V, I read 0x0000
> with 2V, I read 0xFF70 0x8000.
> I increase from 2V to 3v3, it still 0xFF70 0x8000.

I don't know what problems.
May you suggest me a configuration for reading ADC from a single chanel and multiple single also.

Thanks And Best Regards,

Tam

Hi Tam,

Please use SPI Mode 1 (CPOL = 0, CPHA = 1) and provide some screen shots of you commands/data responses (/CS, SDI, SDO and SCLK) and a schematic of your ADC front end signal chain.

Dear Tom,

Spi mode 1 doesn't work. we have to use spi mode 0.

Best Reagards,

Tam