Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A64 => Topic started by: guilhem on September 17, 2022, 11:42:14 PM

Title: A64-OLinuXino-2Ge8G-IND flash type
Post by: guilhem on September 17, 2022, 11:42:14 PM
I don't think I need the industrial temperature range but am considering ordering a A64-OLinuXino-2Ge8G-IND for the 2GiB RAM (I don't need WiFi either).  "-e8G" suggests it uses 8GiB eMMC flash but that's not entirely clear to me from the product page (https://www.olimex.com/Products/OLinuXino/A64/A64-OLinuXino/open-source-hardware), could you please confirm that's the case?

I'd like to boot from that flash chip and also use UEXT, and from the schematics (https://raw.githubusercontent.com/OLIMEX/OLINUXINO/master/HARDWARE/A64-OLinuXino/1.%20Latest%20hardware%20revision/A64-OLinuXino%20hardware%20revision%20E/A64-OlinuXino_Rev_E.pdf) I understand that's only possible for eMMC.  Also, I'd like all GPIO pins to be available, and as far I understand PC4 and PC7 are not available when a NAND flash chip is installed.  Is UEXT usable on then A64-OLinuXino-2Ge8G-IND when booting from the 8GiB flash chip, and are all its GPIO pins available?
Title: Re: A64-OLinuXino-2Ge8G-IND flash type
Post by: LubOlimex on September 19, 2022, 08:38:21 AM
Yes, "-e8-" means 8GB eMMC memory.

Yes, using latest Olimage Linux images you can boot from the eMMC. Yes, all UEXT pins are available and also a lot of the pins at the GPIO1 header - notice that both UEXT and GPIO1 come without connector - these are just pinholes.

You can find more about Olimage Linux here: https://github.com/OLIMEX/OLINUXINO/blob/master/DOCUMENTS/OLIMAGE/Olimage-guide.pdf
Title: Re: A64-OLinuXino-2Ge8G-IND flash type
Post by: guilhem on September 19, 2022, 11:55:52 PM
Awesome, thank you for confirming!