On 03/02/2017 08:30 PM, Luke Kenneth Casson Leighton wrote:
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Thu, Mar 2, 2017 at 8:59 PM, John Luke Gibson eaterjolly@gmail.com wrote:
On 3/2/17, zap zapper@openmailbox.org wrote:
My bad again. I really failed in that respect.
's'ok zap
By the way, I hope you are feeling better.
getting there
@Zap, in this case verbosity helps greatly. If you (for all you honestly knew at the time) redundantly mentioned the purpose of the link was presenting jxself as an alternative.
In fact it would seem you were paying more attention than you (for all Luke honestly knew at the time) seemed to be.
yeah yesterday wasn't a good day: i learned that the NAND ICs which are currently available are no longer compatible with the NAND BOOT ROM on the A20. the A20's basically running out of time and i will have to make a decision to put sub 1GB NAND ICs on-board to store the bootloader *only*, and ship with MicroSD cards with the OS on it instead.
the passthrough card i can't get it up and running in a straightforward fashion: it's going to take time.
the microdesktop is going to need a rework as the microsd power supply 3.3v line is back-feeding into VREFTTL of the A20 and destabilising the processor. i'll need to put in high-speed bi-directional level shifters. argh.
the rk3288 is almost up and running: i destroyed one processor and RAM with a short between the 2v and 1.5v supply, and the first board i had working will not talk to the SYR827 or anything else on the PMIC I2C Bus. i have three remaining boards spare which i am slowly in the process of double-checking the I2C bus first, before putting on the SoC and then the $40 worth of DDR3 RAM. each IC added is risky.
all this was yesterday.
so i am Not A Happy Bunny.
I am sure you will figure out a way. I wish you well and hope you will find that one idea to fix your problems.
As for the ram I wanted, 4gb is a good amount, I needn't be greedy now. Besides, someday down the road later in the future, who knows what will happen...
For now though, don't be hard on yourself okay?
l.
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