Hello.
Now we evaluate the AFE4960EVM.
Another MCU on the Different Board interfaces with the AFE4960 on the EVM
We'd like to use a 1-ECG mode at 125Hz(8mS) sampling rate.
So we set 0x400 to the COUNT_RAC of CONFIG_PRPCT_MIX1.
128KHz / 1024(0x400)=125Hz(8mS).
But the actual sampling rate is 62.5Hz(16mS).
We measured the ADC_RDY pin, using the oscilloscope.
And we measured the GPIO2 pin , I made sure that the clock was 128KHz.
To get the 125Hz , we found that it had to be set to 0x200.
But it describe it as
"RAC frequency is therefore set as 128 kHz divided by the decimal value of COUNT_RAC. For example, setting
the decimal value of COUNT_RAC to 128 sets the RAC frequency to 1 kHz".
Is the description of this datasheet wrong, isn't it?
Thanks,
Takayuki
