Hello, I am using the evaluation board of the ads1298 and I'm trying to make the spi communication between the board and an arduino due.
As a start, I'm trying to read the ID but the DRDY is always 1.
In the start of the communication I send a RESET command, then a SDATAC and then I'm trying to read the ID.
The clock frequency I use is 1MHz.
Here is the code
#include "SPI.h"
int CS=10;
int RESET=0x06;
int RDATAC=0x10;
int SDATAC=0x11;
int START=4;
int data;
void setup() {
SPI.begin(CS);
SPI.setDataMode(CS, SPI_MODE1);
SPI.setBitOrder(CS, MSBFIRST);
SPI.setClockDivider(CS, 84);
}
void loop() {
digitalWrite(START,HIGH);
SPI.transfer(CS,RESET);
SPI.transfer(CS,SDATAC);
while(1){
SPI.transfer(CS,B00100000);
SPI.transfer(CS,1);
delayMicroseconds(2);
data=SPI.transfer(CS,0);
}
}
Here I attached the plots from a logic analyzer.
I am very confused as I do what the datasheet says.
