[not a bug] reverse engineering the firmware to improve the polling rate?

[cerroverb]

So I read that you reverse engineered the firmware to develop this, which is really cool and impressive, but I'm wondering if you could answer my question about whether or not anything could be done about the measly 250 Hz polling rate on this controller. I did some research and it seems like the hardware inside can handle at least 1000, which would not only improve the responsiveness of the sticks but massively improve the smoothness and responsiveness of the gyro, overall making the controller more competitively viable, for example. Do you think this could be done somehow? This has been something I have been awaiting since the controller came out.

[Pixel1011]

I have had a look at this exact thing in the firmware, and i think it is possible, however, I don't actually know how to edit the firmware while also passing it's integrity checks. There's probably a checksum somewhere in the start of the fw file.

The puck has it's USB poll rate at 500hz and the controller 1000hz as you said.

[Pixel1011]

Oh and from measurements, on the puck it actually ends up being about 266hz and 248.2hz on wired :p

I'm assuming that's probably to counteract packet loss via puck, though i can't be certain.

[cerroverb]

8bitdo> Oh and from measurements, on the puck it actually ends up being about 266hz and 248.2hz on wired :p

I'm assuming that's probably to counteract packet loss via puck, though i can't be certain.

Yeah I meant that it is currently 250, but the hardware that valve used could support 1000, and they just haven't bothered to allow for the option. I sent them an email about this but no dice. If there were some way to make it's so that it could work at 1000hz wired that would be fucking amazing

[Pixel1011]

small update, in firmware, the accel,gyro and SFLP (the built-in sensor fusion) ODR (output data rate) for the LSM6DSV16X imu appear to be hard coded to 240hz. The imu itself can go up to 7,680hz

along with +-2g and +-2000dps for the other settings

So far not seeing any reason to not allow it to be changed, other than for battery performance