nrf51 mouse delay

RE: nrf51 mouse delay

bear_xiong — Fri, 03 Jan 2020 10:17:00 GMT

oh. I know. Thanks..

RE: nrf51 mouse delay

Vidar Berg — Thu, 02 Jan 2020 10:01:08 GMT

Hi,

1. I don't see any problems with requesting this interval range. But keep in mind that GAP central (PC in this case) has the final say when it comes to this so that it may reject your request for 7.5 ms. For instance, the lowest interval you will get with Apple devices is 11.25 ms according to their "Accessory Design Guidelines" document: https://developer.apple.com/accessories/Accessory-Design-Guidelines.pdf.

2. It's not a fixed limit as far as I know. It may depend on the BT chipset, OS, connection interval,..

RE: nrf51 mouse delay

bear_xiong — Wed, 01 Jan 2020 11:02:43 GMT

hi. thanks very much. setting MIN_CONN_INTERVAL==MAX_CONN_INTERVAL ==7.5ms., i see bushound usb time is about 8ms most payloads.

i have some questions:

1. if MIN=MAX =7.5ms. have some problem for different system( andor or mac)?

2. how many mouses (with same code) can be connected for one pc? pc or mouse have astrict?

RE: nrf51 mouse delay

Vidar Berg — Mon, 30 Dec 2019 11:07:09 GMT

Hi,

Can you try to set the MIN_CONN_INTERVAL==MAX_CONN_INTERVAL==7.5ms and see if it helps. It may also be helpful to capture a sniffer trace to compare the two (nRF sniffer).

RE: nrf51 mouse delay

bear_xiong — Fri, 27 Dec 2019 11:27:08 GMT

logitech and my mouse are both through dongle。。

i find sdk12.3 mouse demo ， every 8ms call mouse_movement_send() for x/y. bud pc bushound usb time is not 8ms. it is not delay or fast.

but logitech is every 10ms at hushound.

why?

RE: nrf51 mouse delay

Vidar Berg — Fri, 27 Dec 2019 10:06:52 GMT

Hello,

Are both of the Logitech ones communicating over BLE and not Bluetooth classic or through the 'unify' dongle?

RE: nrf51 mouse delay

bear_xiong — Tue, 24 Dec 2019 07:42:10 GMT

hello.

we test windows 10 . i try two logitech mouse in the same pc .it is ok.

RE: nrf51 mouse delay

Vidar Berg — Mon, 23 Dec 2019 15:37:22 GMT

Hello,

Please verify this one more than PC if possible. Also, is this seen on Windows 10, Linux or macOS?

Thanks,

Vidar