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  On Thu, Jan 17, 2019 at 7:10 AM, Charles 
Steinkuehler<[email protected]> wrote:   On 1/17/2019 4:34 AM, 'Mark 
Lazarewicz' via BeagleBoard wrote:
> I'm a retired low level SW engineer mostly for RTOS and barebones. If you are 
> low level capable/board bring up SW  in the interview alarm bells would be 
> screaming. From your last question I'm confused BBB minimal example why? You 
> said they expect you to get work done on BB white.This deadline story smells 
> like you were setup I hope this is a $100 hour contract not some 2 month 
> permanent job.Don't fight the HW guy but if he isn't willing to help you get 
> correct DDR timing values for HW if the bonehead didn't use exact HW as 
> reference  you may be working 80 hrs a week free if its not a contract job.
> In the year since I last used this on omap 17x Its been deprecated.
> http://www.ti.com/tool/STARTERWARE-SITARA
> 
> good luckI have no idea what you plan on doing with this.You say you have 
> extensive linux experience in what apps? If so I'd plan an exit plan 

+1 on using starter-ware as a reference for low-level configuration,
but with any luck you won't have to dig that deep into the guts of things.

The U-Boot code is already doing low-level hardware configuration, you
just need to tweak things a bit.  There are already functions
available to setup the various UARTs and I2C.  I think you should be
able to modify the SPL code (which is trying to read the EEPROM and
properly setup the SDRAM, among other things) to provide some
externally visible output.

NOTE: Since your board is based on the Octavio part, at least you
don't have to worry about the DRAM bus timings or trace routes being
messed up.  I think if you can get your code running (double-check all
boot mode pins) and hard-code the EEPROM auto-detect, you should be
able to get running.  #FingersCrossed

-- 
Charles Steinkuehler
[email protected]

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Hey said he wasn't sure which parts were used he had no input on hardware which 
is bad news.All my comments are based on if the HW guy rolled his own board 
trying to keep things cheap that's the worst case.If he used standard parts he 
could fake out the boot code. The problem is it sounded like there is no eeprom 
if that's true the HW guy is cutting corners. I've yet to see a HW guy worry 
about software porting issues after all they say SW is free. I've also never 
saw a manager who was behind schedule Not minimize the board support and bring 
up he's gonna say what's the problem. Hopefully I'm wrong. I always ask these 
questions in an interview. If I'm right he's gonna be the scape goat for the 
schedule and that's O.K. if your 80 hours a week is paid😊  

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