Inquiry about whether it is possible to use PRU-ICSS to control the built-in bluetooth module in OSD3358-512M-BAS

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1

Dear Jason Kridner,

I want to know whether it is possible to use PRU-ICSS to control the built-in bluetooth module directly in OSD3358-512M-BAS. I just want the built-in bluetooth module to work as fast as possible because I want to use bluetooth module to realize time synchronization by wireless communication. So I want to use PRU-ICSS to circumvent OS, Stack and such kind of thing, and directly control the built-in bluetooth module in order to let this module work as fast as possible. Is that possible? If possilbe, what should I do in general? Is there something you want to suggest? Thank you!

B.R.

Maohua

2

I want to know whether it is possible to use PRU-ICSS to control the built-in bluetooth module directly in OSD3358-512M-BAS. I just want the built-in bluetooth module to work as fast as possible because I want to use bluetooth module to realize time synchronization by wireless communication. So I want to use PRU-ICSS to circumvent OS, Stack and such kind of thing, and directly control the built-in bluetooth module in order to let this module work as fast as possible. Is that possible? If possilbe, what should I do in general? Is there something you want to suggest? Thank you!

what "built-in" bluetooth module? The OSD3358-512M-BAS, doesn't have
bluetooth...

Regards,

3

Hey,

Sorry for my mistake! So the bluetooth module is in fact integrated in the wifi module ‘WL18MODGB’, isn’t ? Is it possible for me to use PRU-ICSS to control it? I want to use PRU-ICSS to directly control the bluetooth unit in order to get high real-time performance by circumventing the bluetooth stack, is it possible? Look forward to your reply!

Best Regard,

Maohua

4

Hey,

Sorry for my mistake!
I am now using BBB Wireless: http://beagleboard.org/black-wireless . So the bluetooth module is in fact integrated in the wifi module ‘WL18MODGB’, isn’t ? Is it possible for me to use PRU-ICSS to control it? I want to use PRU-ICSS to directly control the bluetooth unit in order to get high real-time performance by circumventing the bluetooth stack, is it possible? Look forward to your reply!

Best Regard,
Maohua

5

Umm, the WL1835 is running it's own Bluetooth stack (the firmware we
provide for it on bootup), so while the WL1835 connects to the AM335x
over a simple usart, all the Major Bluetooth stuff is already
offloaded to the WL1835.. On the Linux side, we just interface to it
over Bluez..

So your statement: "in order to get high real-time performance by
circumventing the bluetooth stack" doesn't really fit, as you'd
basically implement a usart on the PRU-ICSS and yet, what... still go
thru bluez, looks more like a slow down....

Regards,

6

Thank you very much!
Your reply is really important for us. Or we will waste a lot of time.

B.R.

Maohua