03-21-2021, 04:18 PM
(03-21-2021, 03:48 PM)dsimic Wrote: Basically, it should be up to enabling the right CS (chip select) line, which should equal to using the right SPI lane. However, it all depends on the way quad-SPI IP core is designed, which we simply don't know. One of my concerns is that no additional documentation about the BL602 will be available, but the publicly availlable source code should provide the means to fill the gap.
As long as the quad SPI works (which I'm sure it does), we will be able to find some solution. QSPI is quite common for anything that wants to talk SPI (comparitively) fast. I know for example in the automotive industry they rely on this quite bit.
(03-21-2021, 03:48 PM)dsimic Wrote: How do we contact Pine64? All my recent attemps have failed, which included email messages, forum private messages, and pings in forum posts. They have even remained silent to a thread like this, which is very concerning; why should they ignore an opportunity to improve one of their flagship products?
No idea, I think dedicating half hour or so a day to keep an eye on the forum would be manageable.
One thing I was hoping is that we could get a forum section or something, perhaps under "Community Projects" or "Unofficial" or "Prototypes". I did have a quick look last night as well at the possibility of hosting some basic forum too - but I really hate setting up PHP.
(03-21-2021, 03:48 PM)dsimic Wrote: Also, please keep in mind that I might be able to produce a small batch of devices, once the pandemic is over, but that would need to be a device that people would actually want to buy. It is good that the BL602 IC is available for purchase separately in the Pine Store, which makes it possible to include it into the BOM.
How many is a small batch? Also there are pick and place services for common parts, such as those offered by JLPCB. We'd likely need some way to take pre-orders though to judge quantity, and then there's the shipping... And depending on how many you are speaking about creating in a small batch, it could be quite a work-intensive undertaking.
We'd probably need pick and place down the line anyway, as those larger flash chips are quite fine pitch and even quite often have pads/balls underneath that require some oven process.
