06-07-2020, 03:34 AM
(06-06-2020, 05:03 PM)pfeerick Wrote: These are ARM processors - there is no BIOS with arm. There is uboot, which performs a similar role. Hopefully you have a serial console cable, or 3v3 compatible usb to serial adapter, as you really need that when starting out / debugging these boards.
You can't change the boot order, it's hard coded in the A64. But it can be effectively changed if you boot uBoot from the SPI chip, at which point uBoot determines the boot order. However, I don't know if this has been done with the sopine/clusterboard yet, so it could be murky territory!
Only the first slot has access to the eMMC. So if you have the eMMC populated, you don't have to have a bootable microSD in the first sopine module, unless you want to boot from SD, and use the eMMC as bulk storage.
Alright, maybe I have enough parts to start testing! Except the serial console cables. Have to order them, too.
> The idea was that the first slot would be the master, and provide PXE network boot to the remaining six modules, but there hasn't been enough developer-level interest in the clusterboard for it to really take off as it should have.
What does that mean, not enough interest? Too few sales?