TMAG5170: Angle result register and X,Y result result registers

Hi Scott,

Thank you for the response.

we followed code example and it looks it is matching (angle result and calculation with X,Y data).

we executed below example at 3 different positions.but there are some questions.

scenario1:

int main() {
float CORDIC_results[2];
calcCORDIC(CORDIC_results,61424,48528,100,10);

return 0;
}

61424 - Y_RESULT from SPI

48528- X_RESULT from SPI.

100  - 100mT is the range configuration

The result from CORDIC function which is inturn calling atan2CORDIC function is "-166.35" where as angle_result value is 194 degrees.

S2:The result from CORDIC function of x,y(56,016,51120) which is inturn calling atan2CORDIC function is "-123" where as angle_result value is 236 degrees.

In all scenarios ,if add 360 to the CORDIC_results[0] ,it is matching with ANGLE_RESULT register value.

few questions:

1) Is above understanding is correct.

2)X,Y are always interpreted as unsigned 16bit .but cordic function has ( int16_t numerator,denominator).so X,Y could be negative values as well?

3) we sent number of iterations value as 10.How to get this value.

4)Result of calcCORDIC() is always negative in 3 scenarios we executed .After adding 360 to it .It is matching with ANGLE_RESULT value.Is it true in all cases.

5)Any simplified method is available to match ANGLE_RESULT and X,Y data other than this.

6) what is the minimum wait time before making  chip select low from high to execute series of reads

Thank you,

P Tulasi Krishna.