about PPI

RE: about PPI

haakonsh — Mon, 08 May 2023 08:29:25 GMT

Hey Lurn,

You need to open a new ticket for your issue.

BR,

Håkon.

RE: about PPI

Lurn_Z — Mon, 08 May 2023 02:21:23 GMT

Hi haakonsh,

I have a similar problem: I have 1 PRX and 2 PTX, and I want to synchronize the timer of the 3 devices via ESB.

[quote userid="13562" url="~/f/nordic-q-a/36354/about-ppi/140192"]https://devzone.nordicsemi.com/b/blog/posts/wireless-timer-synchronization-among-nrf5-devices?CommentId=e60f395c-99e5-497e-bf2d-8157c2748248 [/quote]

But the link is lost, can you give me a hand?

Best regards,

Lurn

RE: about PPI

lmouelo — Tue, 17 Jul 2018 13:33:40 GMT

ok i will to use this blog to synchronize my diferents devices peripehasl thank you , but the data transmission between ble_central and ble_peripheral are affected or no ?

RE: about PPI

haakonsh — Tue, 17 Jul 2018 13:23:21 GMT

The blog post describes how to use the SoftDevice with the Timeslot API in order to use a propriatary 2.4GHz protocol to synchronize nordic devices, whilst being able to service BLE connections. We do not have a solution for time synchronization over BLE yet, but we will with future versions of the BLE spec.

RE: about PPI

lmouelo — Tue, 17 Jul 2018 12:49:21 GMT

if I use this tutorial will the transmission be affected?

RE: about PPI

lmouelo — Tue, 17 Jul 2018 12:21:35 GMT

i want to synchronize just with ble protocol, without radio protocol? if it's practicable

RE: about PPI

lmouelo — Tue, 17 Jul 2018 11:59:55 GMT

thank's to ble role ( Unless I don't understand how roles work. )

RE: about PPI

haakonsh — Tue, 17 Jul 2018 11:43:19 GMT

Then how are you communicating between the devices?

RE: about PPI

lmouelo — Tue, 17 Jul 2018 09:14:05 GMT

i want this but can i synchronyze the diferent timer, of the diferents nordic card, without using the RADIO role.

RE: about PPI

haakonsh — Mon, 16 Jul 2018 11:52:52 GMT

I believe this is what you want:

https://devzone.nordicsemi.com/b/blog/posts/wireless-timer-synchronization-among-nrf5-devices?CommentId=e60f395c-99e5-497e-bf2d-8157c2748248

RE: about PPI

lmouelo — Fri, 13 Jul 2018 09:02:38 GMT

in my case i have 1 central and 4 peripheral and i want to synchronize the timer of the 4 peripheral.

RE: about PPI

lmouelo — Fri, 13 Jul 2018 08:48:12 GMT

it's nrf52840 sdl15.0 and peripheral define a nordic card. A

nd i want to synchronize the timer of several peripheral card sorry for my english

it's really possible to do this with ppi register ?

RE: about PPI

haakonsh — Thu, 12 Jul 2018 13:36:30 GMT

please define peripheral and nordic card

RE: about PPI

haakonsh — Thu, 12 Jul 2018 13:11:45 GMT

You can connect any peripherals EVENTs to any peripheral's TASK with the exception of the radio where it will break the SoftDevice if its running. This means that you can create whole state machines with just peripherals and PPI.

Have fun exploring what you can do with it and tell us if you figure out something cool :P

RE: about PPI

lmouelo — Thu, 12 Jul 2018 12:37:19 GMT

I mean by more than 2 peripheral -> more than two nordic card