On 3. 12. 21 18:31, Christoph Niedermaier wrote:

From: Guenter Roeck
Sent: Friday, December 3, 2021 5:52 PM

quoted

On 12/3/21 8:35 AM, Christoph Niedermaier wrote:

quoted

I measured the timeout values of my DA9061 chip. According to the
information in the data sheet the formula should be:

timeout = 2.048 * 2^(regval - 1)

But my measured values differ from that.
Accoring to my measured values the formula must be:

timeout = 3.2 * 2^(regval - 1)

Is there something wrong with my chip, or has anyone else noticed this as well?

The driver assumes a static and well defined clock rate. Maybe that rate
is different in your system (if that is possible) ?

Guenter

@Andrej
Do the values in the driver match what your chip does?

Just did a quick test. The values in the driver match what the chip 
does. I checked multiple timeouts 16, 32, 65 and 131 seconds. The 
timeout triggers quite accurately.

I have not changed anything. After power on, the chip behaves like this.
So I guess it either come from an OTP value or the wiring outside the chip.
Does anyone know what needs to be checked?

Can't help you here, sorry.

Best regards,
Andrej