Hello,
If I am running DSPS in peripheral mode as a server can multiple phones connect to it simultaneously?
If not can the code be modified to accomplish this or are there technical limitations that prevent this from doing this?
I want multiple masters (at least two) to be able to connect to a client.
Saleem
Hello Saleem, our DSPS has been only developed for a single point to single point connection , not for multuiple . Also, please note that as a peripheral, you can only be anyhow connected to a signle central (smartphone).
BR JE_Dialog
Thanks for your response as always.
To back track a bit my end goal is to transmit information from Node A to Node D. But A and D are not within range of each other. Node A can talk to Node B, Node B can talk to Node C and Node C can talk to Node D.
Multiple solutions come to mind --
1. Establish a connection from A to B. Send the data over. Disconnect. Then connect from B to C send the data to C. disconnect. Connect C to D. Send the data to D.
2. Presumably connecting and disconnecting would take time. Can we establish a connection from A to B, B to C and C to D at the onset and then just send data without having to connect and disconnect.
A: Master
B: Client A, C
C: Master
D: Client C
Can B be a client to A and C??
The other alternative would be to
Initially A is Master B is Client. B then becomes Master and C Client, C then becomes Master and D becomes client??
It switching Master Client possible dynamically and is it faster than connect disconnect??
Thanks as always,
Saleem
The functionality I am after is referred to as Scatternet.
http://en.wikipedia.org/wiki/Scatternet
"Scatternets can be formed when a member of one piconet (either the master or one of the slaves) elects to participate as a slave in a second, separate piconet."
So this is part of the Bluetooth Spec -- the question is can I do it with DA14580. Thanks.
arch_main.c contains a variable called BLE_CONNECTION_MAX_USER
Also there is a file called da14580_scatter_config.h
So I suspect the functionality is there...I wish everything were better documented.
Saleem
你好萨利姆,scatter_c的文件onfig.h refers to the memory map : it has nothing to do with 'scatternet'. Techincally, it can be done (change DA14580 from slave to master), and has been implemented by some customers, but its complex and resource intensive to implement - effectively rebooting the device with different application file. I would only recommend someone to look into this if they have already quite some extensive experience on Cortex M0 platform. BR JE_Dialog
So, is there no way for a DA14580 peripheral to allow 2 or more centrals to connect? Is that true for SDK 5.0.3 as well (released October 2015)?
Hi kobyfr_mag,
The 580 SDK5 in peripheral mode doesnt support more than one connection.
Thanks MT_dialog