Better WiFi/BT module?
#11
FM+GPS functionality would be awesome. But I dont know what are limitations comes from SDIO port. Also I think it would be difficult to make this kind of module because the pins of wifi expansion port maybe a limitation. For me I think it is not worth to try, needs lots of customization in kernel and I dont even mention about making a module from bga packaged chip  Confused
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#12
I checked availability of the chipset on several distributors and didnt see stock anywhere... a better approach is probably to just make an adapter board for an existing SDIO module...
Come have a chat in the Pine A64 IRC channel >>
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#13
I dont understand, adapter board for existing SDIO module, what do you mean?
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#14
Well you get an SDIO stamp (like the one on the Pine module from Realtek) and make a breakout PCB to adapt it to the pin headers of the Pine board...
Come have a chat in the Pine A64 IRC channel >>
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#15
The mentioned chipset was just an example, as that was the one with the highest possible bandwidth that supported SDIO. So it's not a necessity to have THAT chip, but basically anything that can get, say, 800Mbps+ on 5Ghz would be perfect.
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#16
(02-09-2017, 11:35 AM)fonix232 Wrote: The mentioned chipset was just an example, as that was the one with the highest possible bandwidth that supported SDIO. So it's not a necessity to have THAT chip, but basically anything that can get, say, 800Mbps+ on 5Ghz would be perfect.

Jomsmirl suggested AMPAK module and here is the link: http://www.ampak.com.tw/product.php?id=22. I will explore on next week when meet up with China vendors.
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#17
(02-12-2017, 10:43 PM)tllim Wrote:
(02-09-2017, 11:35 AM)fonix232 Wrote: The mentioned chipset was just an example, as that was the one with the highest possible bandwidth that supported SDIO. So it's not a necessity to have THAT chip, but basically anything that can get, say, 800Mbps+ on 5Ghz would be perfect.

Jomsmirl suggested AMPAK module and here is the link: http://www.ampak.com.tw/product.php?id=22. I will explore on next week when meet up with China vendors.

That AMPAK module, while looks interesting, it does not provide full speed - 433Mbps is pretty much what you'd expect from an N network, not AC.

However if you check the 356S (http://www.ampak.com.tw/product.php?id=23), it provides double the bandwidth at possibly similar pricing.
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#18
You have to keep in mind that SDIO is not PCIe or USB3.0 :-)

Does anyone know what the maximum bus speed for SDIO3.0 is on the A64?

http://files.pine64.org/doc/datasheet/pi...t_V1.1.pdf page 41

If I read this correct, the SDC1 controller supports either

DS,HS,SDR12,SDR25,SDR50,SDR104

DDR50

SDR104 has a bus clock of 150Mhz, whichs means that at 4 bit you would get theoretically 600Mbit/s raw bit rate minus the frame/protocol overhead,
so in practice probably quite a bit less?

Tyical SDIO3.0 Wifi modules have around 433Mbit https://boundarydevices.com/product/bd_sdmac_wifi/

You also need 1.8V signaling for the SDR104 mode... which is maybe possible because Port G seems to be connected to it's own DLDO/ELDO

http://files.pine64.org/doc/Pine%20A64%2...elease.pdf
http://files.pine64.org/doc/datasheet/pi...t_V1.0.pdf

ELDO1 is adjustable from 0.7-1.9V (Imax 400mA)
DLDO4 is adjustable from 0.7-3.3V (Imax 500mA)

Faster modules might still give a little bit more headroom for link degradation...
Come have a chat in the Pine A64 IRC channel >>
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#19
There are 802.11n WiFi modules that support 5GHz, 300Mbps-450Mbps speeds and ALSO respect your freedom - don't need any closed source code to function. In example, Atheros ath9k family, and AR9462 module. Meanwhile, there are no 802.11ac which could work without any blobs. Hopefully the next revision of Pinephone 5 will pick AR9462 as its' WiFi module, instead of the crappy Realtek/Broadcom/Intel/Qualcomm blobbed alternatives.
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